diff --git a/.dockerignore b/.dockerignore index ac983614b..5cf2a7de5 100644 --- a/.dockerignore +++ b/.dockerignore @@ -63,6 +63,8 @@ journal/ examples/ experiments/ scratch/ +!examples/cybergym/ +!examples/cybergym/** # Results and traces results/ diff --git a/examples/cybergym/Dockerfile b/examples/cybergym/Dockerfile index d7ccea44f..fb8d6bf7d 100644 --- a/examples/cybergym/Dockerfile +++ b/examples/cybergym/Dockerfile @@ -44,7 +44,10 @@ RUN uv pip install --system --require-hashes -r /tmp/nooa-requirements.txt \ WORKDIR /app RUN mkdir -p /logs/artifacts && ln -s /logs/artifacts /app/artifacts -COPY nooa_cybergym ./nooa_cybergym -COPY nooa_cybergym/llm_config.yaml ./.nooa/llm_config.yaml +COPY src/nooa /usr/local/lib/python3.12/site-packages/nooa +COPY examples/cybergym/nooa_cybergym ./nooa_cybergym +COPY examples/cybergym/nooa_cybergym/_vendor/code_validator.py /usr/local/lib/python3.12/site-packages/nooa/runtime/code_validator.py +COPY examples/cybergym/nooa_cybergym/_vendor/shell_tools.py /usr/local/lib/python3.12/site-packages/nooa/tools/shell_tools.py +COPY examples/cybergym/nooa_cybergym/llm_config.yaml ./.nooa/llm_config.yaml CMD ["python", "-m", "nooa_cybergym.main", "--help"] diff --git a/examples/cybergym/README.md b/examples/cybergym/README.md index 96e2de6fc..cee23559a 100644 --- a/examples/cybergym/README.md +++ b/examples/cybergym/README.md @@ -107,8 +107,7 @@ scripts/run_subset.sh Pass task IDs to run a subset of the subset, e.g. `scripts/run_subset.sh arvo:10400`. Each task gets up to 4h of wall-clock (`TIMEOUT` in `scripts/config.sh`), so the -full subset runs serially for a while. Lower it for a quick smoke test, e.g. -`TIMEOUT=1800 scripts/run_subset.sh`. +full subset runs serially for a while. Results land in a timestamped run directory: diff --git a/examples/cybergym/nooa_cybergym/_vendor/code_validator.py b/examples/cybergym/nooa_cybergym/_vendor/code_validator.py new file mode 100644 index 000000000..fcbd2b9bc --- /dev/null +++ b/examples/cybergym/nooa_cybergym/_vendor/code_validator.py @@ -0,0 +1,1691 @@ +# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved. +# SPDX-License-Identifier: Apache-2.0 +"""Unified AST validation for agent-generated code. + +This module provides a single entry point for all code validation: +- SecurityValidator: Guardrails against common footguns (forbidden builtins, + restricted imports, direct class/dunder mutation) +- BlockingCallValidator: Prevents blocking calls that freeze the event loop +- REPLPolicyValidator: Enforces REPL-style coding conventions + +Security model — read before extending: + These validators are **guardrails, not a security boundary**. They operate on + a static AST and reduce the chance that an LLM *accidentally* corrupts runtime + state, freezes the event loop, or reaches for a surprising module. They do + **not** and **cannot** contain adversarial code: a static Python checker is + trivially bypassable (e.g. ``open()`` for arbitrary file I/O, dynamic module + loading via ``importlib.util``/``importlib.machinery``, reflection, C-extension + loading). Do not treat the deny-lists as a jail or add checks under the belief + that they close a real escape — that is unwinnable whack-a-mole. + + The actual containment boundary is OS-level isolation (container / VM / gVisor, + e.g. NVIDIA OpenShell). Run agents that execute generated code inside one. + See the README security note and ``runtime/restrictions.py``. + +Usage: + validator = UnifiedCodeValidator() + context = ValidationContext( + code=code, + available_names=["self", "asyncio"], + restricted_imports=frozenset({"os", "sys"}), # deny list + blocked_modules=DEFAULT_BLOCKED_MODULES, + ) + validator.validate(code, context) # Raises ValidationError on failure +""" + +# ============================================================================= +# Error Code Registry +# ============================================================================= +# The codes below match what the validators actually emit. Every code is emitted +# with severity="error" (the historical "W" prefix on the infinite-loop check was +# renamed to E303 to reflect that it is an error, not a warning). +# SecurityValidator (_SecurityVisitor): +# E001 — Forbidden builtin / attribute call (exec, eval, compile, __import__, +# input, globals, locals, breakpoint; their aliases; calls that could +# modify runtime restrictions; getattr() of any such name) +# E002 — Restricted or blocked import (module in restricted_imports or blocked_modules) +# E003 — Wildcard import ('from ... import *') +# E004 — Recursive self-call (self.() listed in forbidden_self_calls) +# E005 — Process/control-flow termination (raise SystemExit/KeyboardInterrupt, +# sys.exit()/os._exit()/os.abort() and their aliases) +# E101 — Forbidden dunder attribute access (__class__, __subclasses__, etc.) +# and access to '__builtins__' +# E102 — Base-class/super dunder access that bypasses Agent runtime guards +# (object.__setattr__, type.__setattr__, super().__setattr__, etc.) +# E104 — setattr()/delattr()/getattr() targeting a dunder attribute name +# REPLPolicyValidator: +# E301 — Missing await on an async method call +# E303 — Potential infinite loop ('while True' without break/return) +# ClassAssignmentValidator: +# E401 — Forbidden class attribute assignment (ClassName.x = ..., type(self).x = ...) +# E402 — Forbidden class-level setattr() (setattr(ClassName, ...), setattr(type(self), ...)) +# BlockingCallValidator: +# E310 — Blocking call that would freeze the event loop +# ReturnTypeShadowValidator: +# E501 — Local class/function definition or assignment shadows the method's return type +# ============================================================================= +import ast +import inspect +import logging +import types +from dataclasses import dataclass, field +from typing import Annotated, Any, ForwardRef, Literal, Protocol, get_args, get_origin + +from nooa.errors import RestrictedCodeError as ValidationError +from nooa.runtime.restrictions import ( + RestrictionsConfig, + match_blocked_module, +) + +logger = logging.getLogger(__name__) + +# Re-export ValidationError for convenience +__all__ = [ + "UnifiedCodeValidator", + "SecurityValidator", + "BlockingCallValidator", + "REPLPolicyValidator", + "ClassAssignmentValidator", + "ReturnTypeShadowValidator", + "ValidationContext", + "ValidationError", + "ValidationIssue", +] + + +# ============================================================================= +# Data Classes +# ============================================================================= +@dataclass +class ValidationIssue: + """Single validation issue with location and severity.""" + + line: int + col: int + message: str + severity: Literal["error", "warning"] = "error" + code: str = "" # Error code like "E001", "W001" + fix_hint: str | None = None + doc_link: str | None = None # Link to documentation + + +@dataclass +class ValidationContext: + """Shared context for all validators.""" + + code: str = "" + agent_class: type | None = None + available_names: set[str] = field(default_factory=set) + importable_modules: set[str] = field( + default_factory=set + ) # Deprecated: use restricted_imports deny list instead + forbidden_self_calls: set[str] = field(default_factory=set) + execution_count: int = 1 + agent: Any = None # Agent instance for method introspection + exec_globals: dict[str, Any] = field(default_factory=dict) + restricted_imports: frozenset[str] = field(default_factory=frozenset) + blocked_modules: frozenset[str] = field(default_factory=frozenset) + # Return type of the currently executing generation method, when known. + # Drives ReturnTypeShadowValidator: if the generated code redefines a class + # whose name is part of this annotation, the resulting __repl_wrapper__-scoped + # class will not pass return_result Pydantic validation (see issue gl-143). + return_type: Any = None + + +class Validator(Protocol): + """Protocol for individual validators.""" + + def validate(self, tree: ast.AST, context: ValidationContext) -> list[ValidationIssue]: + """Validate AST and return list of issues.""" + ... + + +# ============================================================================= +# Security Validator +# ============================================================================= + +# Functions that are always forbidden in generated code +FORBIDDEN_BUILTINS = frozenset( + { + # Dynamic code execution (security risk) + "exec", + "eval", + "compile", + "__import__", + # Blocking stdin operations (cause hangs) + "input", + "breakpoint", + # Namespace access (security risk) + "globals", + "locals", + "vars", # Similar to locals(), gives access to __dict__ + # Process termination + "exit", + "quit", + # Restriction mutation (prevents agent from loosening its own restrictions) + "set_restricted_imports", + "get_restricted_imports", + } +) + +# Function names forbidden as attribute calls (e.g. `mod.set_restricted_imports()`) +FORBIDDEN_ATTR_CALLS = frozenset( + { + "set_restricted_imports", + "get_restricted_imports", + } +) + +# Dunder attributes commonly used to reach runtime internals (introspection +# ladders like __class__ -> __subclasses__). Blocking them trims easy footguns; +# it is not a containment guarantee (see the module docstring's security model). +DANGEROUS_DUNDER_ATTRS = frozenset( + { + "__class__", + "__bases__", + "__subclasses__", + "__mro__", + "__globals__", + "__code__", + "__builtins__", + "__dict__", + } +) + + +class SecurityValidator: + """Guardrail checks over generated code (not a security boundary). + + Flags common footguns so the LLM fails fast with a clear message rather than + corrupting runtime state or silently doing something surprising. This is + defense-in-depth, not containment — see the module docstring's security + model. Real isolation comes from running the agent in an OS-level sandbox. + + Checks for: + - Forbidden builtins (exec, eval, compile, __import__, input, breakpoint, globals, locals) + - Restricted/blocked imports (modules in restricted_imports or blocked_modules deny lists) + - Import * (always forbidden) + - Direct dunder attribute access (__class__, __bases__, etc.) + - Recursive self-calls (infinite recursion prevention) + - Aliased forbidden builtins + - Forbidden attribute calls (set_restricted_imports, get_restricted_imports) + """ + + def validate(self, tree: ast.AST, context: ValidationContext) -> list[ValidationIssue]: + """Validate security rules and return issues.""" + visitor = _SecurityVisitor(context) + visitor.visit(tree) + return visitor.issues + + +class _SecurityVisitor(ast.NodeVisitor): + """AST visitor for security validation.""" + + def __init__(self, context: ValidationContext): + self.context = context + self.issues: list[ValidationIssue] = [] + # Track aliases: local_name -> original_forbidden_name + self.forbidden_aliases: dict[str, str] = {} + # Track aliases like `import os as o; o._exit()` / `import sys as s; s.exit()`. + self.module_aliases: dict[str, str] = {} + + def visit_Import(self, node: ast.Import) -> Any: + """Check import statements.""" + for alias in node.names: + available, deny_tier = self._is_module_available(alias.name) + if not available: + self.issues.append(self._make_import_error(node, alias.name, deny_tier)) + + root_module = alias.name.split(".", 1)[0] + if root_module in ("sys", "os"): + self.module_aliases[alias.asname or root_module] = root_module + + self.generic_visit(node) + + def visit_ImportFrom(self, node: ast.ImportFrom) -> Any: + """Check from-import statements.""" + # from X import * is always forbidden + if any(alias.name == "*" for alias in node.names): + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message="'from ... import *' is forbidden for security reasons", + code="E003", + ) + ) + self.generic_visit(node) + return + + # Check if module is available + module_name = node.module or "" + available, deny_tier = self._is_module_available(module_name) + if not available: + self.issues.append(self._make_import_error(node, module_name, deny_tier)) + else: + # Track aliases of forbidden builtins and imported process-termination calls. + for alias in node.names: + local_name = alias.asname or alias.name + if alias.name in FORBIDDEN_BUILTINS: + self.forbidden_aliases[local_name] = alias.name + if (module_name, alias.name) in ( + ("sys", "exit"), + ("os", "_exit"), + ("os", "abort"), + ): + self.forbidden_aliases[local_name] = f"{module_name}.{alias.name}" + + self.generic_visit(node) + + def visit_Call(self, node: ast.Call) -> Any: + """Check function calls.""" + if isinstance(node.func, ast.Name): + func_name = node.func.id + + # Check direct forbidden calls + if func_name in FORBIDDEN_BUILTINS: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"{func_name}() is forbidden - it blocks or allows code execution", + code="E001", + ) + ) + # Check aliased forbidden calls + elif func_name in self.forbidden_aliases: + original = self.forbidden_aliases[func_name] + if original in ("sys.exit", "os._exit", "os.abort"): + self._add_process_termination_call_issue( + node, f"{func_name}() (alias for {original})" + ) + else: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"{func_name}() is forbidden (alias for {original})", + code="E001", + ) + ) + # Check setattr/delattr/getattr with dunder names or forbidden attr calls + elif func_name in ("setattr", "delattr", "getattr"): + self._check_attr_modification_with_dunder(node, func_name) + self._check_getattr_forbidden_attr_call(node, func_name) + + # Check for forbidden self.method() calls (prevents recursion) + if self.context.forbidden_self_calls and isinstance(node.func, ast.Attribute): + if isinstance(node.func.value, ast.Name) and node.func.value.id == "self": + method_name = node.func.attr + if method_name in self.context.forbidden_self_calls: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"calling self.{method_name}() is forbidden - " + "this would cause infinite recursion", + code="E004", + ) + ) + + # Check for forbidden attribute calls (e.g. mod.set_restricted_imports()) + if isinstance(node.func, ast.Attribute): + if node.func.attr in FORBIDDEN_ATTR_CALLS: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"{node.func.attr}() is forbidden - " + "this could modify runtime security restrictions", + code="E001", + ) + ) + # Process-termination attribute calls: sys.exit(), os._exit(), os.abort(), plus aliases. + elif isinstance(node.func.value, ast.Name): + module_name = self.module_aliases.get(node.func.value.id, node.func.value.id) + if (module_name, node.func.attr) in ( + ("sys", "exit"), + ("os", "_exit"), + ("os", "abort"), + ): + call = f"{node.func.value.id}.{node.func.attr}()" + if node.func.value.id != module_name: + call += f" (alias for {module_name}.{node.func.attr})" + self._add_process_termination_call_issue(node, call) + + self.generic_visit(node) + + def _add_process_termination_call_issue(self, node: ast.Call, call: str) -> None: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=( + f"{call} is forbidden - it terminates at the process/control-flow " + "level and can cancel sibling tasks. Use break, a flag, a helper " + "return, or return_result() to stop." + ), + code="E005", + ) + ) + + def visit_Attribute(self, node: ast.Attribute) -> Any: + """Check attribute access for dangerous dunders.""" + if node.attr in DANGEROUS_DUNDER_ATTRS: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"Access to '{node.attr}' is forbidden - " + "this could bypass security restrictions", + code="E101", + ) + ) + # Forbid base-class dunder accesses like `object.__setattr__` and + # `type.__setattr__` — they bypass Agent.__setattr__ via the C-level slot. + elif ( + isinstance(node.value, ast.Name) + and node.value.id in ("object", "type") + and node.attr.startswith("__") + and node.attr.endswith("__") + ): + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"Access to '{node.value.id}.{node.attr}' is forbidden - " + "this would bypass agent runtime guards", + code="E102", + ) + ) + # Forbid `super(...).__setattr__(...)` and similar — super() routes + # to the parent class's __setattr__, bypassing Agent.__setattr__. + elif ( + isinstance(node.value, ast.Call) + and isinstance(node.value.func, ast.Name) + and node.value.func.id == "super" + and node.attr.startswith("__") + and node.attr.endswith("__") + ): + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"Access to 'super().{node.attr}' is forbidden - " + "this would bypass agent runtime guards", + code="E102", + ) + ) + self.generic_visit(node) + + def visit_Name(self, node: ast.Name) -> Any: + """Check name access for __builtins__.""" + if node.id == "__builtins__": + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message="Access to '__builtins__' is forbidden - " + "this could bypass security restrictions", + code="E101", + ) + ) + self.generic_visit(node) + + def visit_Raise(self, node: ast.Raise) -> Any: + """Flag `raise SystemExit` / `raise SystemExit(...)`. + + SystemExit (and KeyboardInterrupt) are BaseException, not Exception, so + a generated cell raising one escapes the runtime's per-cell error + handling and can cancel sibling tasks (e.g. a surrounding TaskGroup). + To stop a cell, use break, a flag, a helper return, or return_result(). + This is a fast-fail for the literal form; the runtime also converts any + SystemExit/KeyboardInterrupt that reaches it into an execution error. + """ + exc = node.exc + # `raise SystemExit` (Name) or `raise SystemExit(...)` (Call of a Name) + name = None + if isinstance(exc, ast.Name): + name = exc.id + elif isinstance(exc, ast.Call) and isinstance(exc.func, ast.Name): + name = exc.func.id + if name in ("SystemExit", "KeyboardInterrupt"): + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=( + f"raise {name} is forbidden - it terminates the cell at " + "the process/control-flow level and can cancel sibling " + "tasks. Use break, a flag, a helper return, or " + "return_result() to stop." + ), + code="E005", + ) + ) + self.generic_visit(node) + + def _is_module_available(self, module_name: str) -> tuple[bool, str | None]: + """Check if module is importable under the deny-list model. + + A module is denied if it matches either blocked_modules (tier 1) + or restricted_imports (tier 2). Everything else is allowed. + + Returns: + (available, deny_tier) — deny_tier is "blocked" or "restricted" + when available is False, None otherwise. + """ + # Tier 1: always deny blocked modules (event-loop hazards) + if self.context.blocked_modules: + if match_blocked_module(module_name, self.context.blocked_modules) is not None: + return False, "blocked" + # Tier 2: deny restricted imports + if self.context.restricted_imports: + if match_blocked_module(module_name, self.context.restricted_imports) is not None: + return False, "restricted" + return True, None + + def _check_attr_modification_with_dunder(self, node: ast.Call, func_name: str) -> None: + """Check if setattr/delattr is being used with dunder attribute names.""" + # setattr(obj, name, value) or delattr(obj, name) + # The attribute name is the second argument + if len(node.args) < 2: + return + + attr_arg = node.args[1] + + # Check if it's a string literal + if isinstance(attr_arg, ast.Constant) and isinstance(attr_arg.value, str): + attr_name = attr_arg.value + if attr_name in DANGEROUS_DUNDER_ATTRS: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"{func_name}() with '{attr_name}' is forbidden - " + "this could bypass security restrictions", + code="E104", + ) + ) + elif attr_name.startswith("__") and attr_name.endswith("__"): + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"{func_name}() with dunder attribute '{attr_name}' is forbidden - " + "this could bypass security restrictions", + code="E104", + ) + ) + + def _check_getattr_forbidden_attr_call(self, node: ast.Call, func_name: str) -> None: + """Flag getattr(obj, 'name') where name is in FORBIDDEN_ATTR_CALLS.""" + if func_name != "getattr" or len(node.args) < 2: + return + attr_arg = node.args[1] + if isinstance(attr_arg, ast.Constant) and isinstance(attr_arg.value, str): + if attr_arg.value in FORBIDDEN_ATTR_CALLS: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"getattr() with '{attr_arg.value}' is forbidden - " + "this could modify runtime security restrictions", + code="E001", + ) + ) + + def _make_import_error( + self, node: ast.Import | ast.ImportFrom, module_name: str, deny_tier: str | None = None + ) -> ValidationIssue: + """Create error for restricted or blocked import.""" + tier = deny_tier or "restricted" + if tier == "blocked": + msg = ( + f"import of '{module_name}' is blocked. " + f"This module can freeze the event loop and is not allowed in agent code." + ) + if module_name == "subprocess": + msg += ( + " subprocess is unavailable in this REPL; use the `shell` tool " + "for commands, for example `await self.shell.run(...)`. " + "Stop and do not probe process-launch alternatives; your next tool call " + "must retry the command through `await self.shell.run(...)`." + ) + else: + msg = ( + f"import of '{module_name}' is restricted. " + f"This module is in the restricted_imports deny list. " + f"Also forbidden: eval(), exec(), compile(), __import__(), " + f"input(), globals(), locals(), breakpoint()" + ) + return ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=msg, + code="E002", + ) + + +# ============================================================================= +# REPL Policy Validator +# ============================================================================= +class REPLPolicyValidator: + """Validates REPL-style coding conventions. + + Checks for: + - Missing await on async method calls + """ + + def validate(self, tree: ast.AST, context: ValidationContext) -> list[ValidationIssue]: + """Validate REPL policy rules and return issues.""" + visitor = _REPLPolicyVisitor(context) + visitor.visit(tree) + return visitor.issues + + +class _REPLPolicyVisitor(ast.NodeVisitor): + """AST visitor for REPL policy validation.""" + + def __init__(self, context: ValidationContext): + self.context = context + self.issues: list[ValidationIssue] = [] + self.async_method_names: set[str] = set() + self.parent_map: dict[ast.AST, ast.AST] = {} + self._collect_async_methods() + + def visit(self, node: ast.AST) -> Any: + """Build parent map while visiting.""" + for child in ast.iter_child_nodes(node): + self.parent_map[child] = node + return super().visit(node) + + def visit_While(self, node: ast.While) -> Any: + """Check for infinite loops (while True without break/return).""" + if self._is_infinite_loop(node) and not self._has_exit_statement(node): + from nooa.runtime.harness_metrics import get_harness_metrics + + get_harness_metrics().infinite_loop() + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message="Potential infinite loop detected (while True without break/return) - " + "add a break condition or use an iteration limit", + code="E303", + severity="error", + ) + ) + self.generic_visit(node) + + def _is_infinite_loop(self, node: ast.While) -> bool: + """Check if while loop has a constant True condition.""" + # while True: + if isinstance(node.test, ast.Constant) and node.test.value is True: + return True + # while 1: + if isinstance(node.test, ast.Constant) and node.test.value == 1: + return True + # while not False: + if isinstance(node.test, ast.UnaryOp) and isinstance(node.test.op, ast.Not): + if isinstance(node.test.operand, ast.Constant) and node.test.operand.value is False: + return True + return False + + def _has_exit_statement(self, node: ast.While) -> bool: + """Check if while loop body has a break, return, or raise at the loop level. + + Does NOT count: + - break/return/raise inside nested function/class definitions + - break inside nested loops (only exits the inner loop) + """ + for child in node.body: + if self._has_exit_in_subtree(child, check_break=True): + return True + return False + + def _has_exit_in_subtree(self, node: ast.AST, check_break: bool = True) -> bool: + """Check if node or its children (excluding nested defs/loops) have exit statements. + + Args: + node: AST node to check + check_break: If True, count Break as exit. Set to False when entering nested loops + since their breaks don't exit the outer loop. + """ + # Direct exit statements + if isinstance(node, ast.Return): + return True + if isinstance(node, ast.Raise): + return True + if isinstance(node, ast.Break) and check_break: + return True + + # Don't recurse into function/class definitions - their exits don't affect outer loop + if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef, ast.ClassDef)): + return False + + # For nested loops, don't count their breaks as exiting the outer loop + if isinstance(node, (ast.For, ast.AsyncFor, ast.While)): + # Check the loop body, but breaks inside only exit THIS loop, not outer + for child in node.body: + if self._has_exit_in_subtree(child, check_break=False): + return True + for child in node.orelse: + if self._has_exit_in_subtree(child, check_break=False): + return True + return False + + # Check children + for subnode in ast.iter_child_nodes(node): + if self._has_exit_in_subtree(subnode, check_break): + return True + + return False + + def visit_Call(self, node: ast.Call) -> Any: + """Check for missing await on async method calls.""" + if not self.async_method_names: + self.generic_visit(node) + return + + # Check self.method() calls + if not isinstance(node.func, ast.Attribute): + self.generic_visit(node) + return + + if not isinstance(node.func.value, ast.Name): + self.generic_visit(node) + return + + if node.func.value.id != "self": + self.generic_visit(node) + return + + method_name = node.func.attr + if method_name not in self.async_method_names: + self.generic_visit(node) + return + + # Check if already awaited or in a gather-friendly context + if not self._is_awaited_or_gathered(node): + from nooa.runtime.harness_metrics import get_harness_metrics + + get_harness_metrics().missing_await(method_name) + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"Method `{method_name}` is async and must be called with `await`", + code="E301", + fix_hint=f"await self.{method_name}(...)", + ) + ) + + self.generic_visit(node) + + def _collect_async_methods(self) -> None: + """Collect names of async methods from agent.""" + from nooa.agentdoc.visibility import is_hidden_method + + agent = self.context.agent + if not agent: + return + + # Check class-level methods + for attr_name in dir(agent.__class__): + if attr_name.startswith("__"): + continue + try: + attr = getattr(agent.__class__, attr_name, None) + if attr and inspect.iscoroutinefunction(attr): + if not is_hidden_method(attr): + self.async_method_names.add(attr_name) + except Exception: + continue + + # Check instance-level methods + for attr_name in dir(agent): + if attr_name.startswith("__"): + continue + try: + attr = getattr(agent, attr_name) + if callable(attr) and inspect.iscoroutinefunction(attr): + if not is_hidden_method(attr): + self.async_method_names.add(attr_name) + except Exception: + continue + + def _is_awaited_or_gathered(self, node: ast.AST) -> bool: + """Check if call is awaited or in a gather-friendly context.""" + current = node + while current in self.parent_map: + parent = self.parent_map[current] + + # Direct await + if isinstance(parent, ast.Await) and getattr(parent, "value", None) == current: + return True + + # In list/generator comprehension (for gather patterns) + if isinstance(parent, (ast.ListComp, ast.GeneratorExp)): + return True + + current = parent + + return False + + +# ============================================================================= +# Class Assignment Validator +# ============================================================================= +class ClassAssignmentValidator: + """Detect dangerous class attribute assignments like ClassName.method = ... + + When LLM-generated code assigns directly to a class (instead of an instance), + it corrupts all subsequent instances that share that class definition. + This validator blocks patterns like: + - ParentAgent.method = lambda: ... + - SubAgentClass.work = factory_result + - ClassName.attr += value + + Safe patterns that are NOT blocked: + - self.attr = value (instance assignment) + - obj.attr = value (non-class object) + - data["key"] = value (subscript, not attribute) + """ + + def validate(self, tree: ast.AST, context: ValidationContext) -> list[ValidationIssue]: + """Validate AST for class assignment patterns.""" + visitor = _ClassAssignmentVisitor(context) + visitor.visit(tree) + return visitor.issues + + +class _ClassAssignmentVisitor(ast.NodeVisitor): + """AST visitor for detecting class attribute assignments.""" + + def __init__(self, context: ValidationContext): + self.context = context + self.issues: list[ValidationIssue] = [] + self.known_class_names = self._collect_class_names() + # Track variables assigned from type(self) - these hold class references + self.class_ref_vars: set[str] = set() + # Track variables assigned from self - type(var) is equivalent to type(self) + self.self_ref_vars: set[str] = set() + + def _collect_class_names(self) -> set[str]: + """Collect names that refer to classes in the execution context.""" + names: set[str] = set() + agent = self.context.agent + if not agent: + return names + + # The agent's class and ALL parent classes via MRO + # This prevents LLM from assigning to BaseAgent.method when agent extends BaseAgent + for cls in type(agent).__mro__: + if cls is object: + continue + names.add(cls.__name__) + + # Class attributes that are themselves classes (sub-agent classes) + from nooa.agentdoc.visibility import is_hidden_field + + for attr_name in dir(type(agent)): + if attr_name.startswith("__"): + continue + try: + attr = getattr(type(agent), attr_name, None) + if isinstance(attr, type): + if not is_hidden_field(type(agent), attr_name): + names.add(attr_name) + except Exception: + continue + + return names + + def _is_type_self_call(self, node: ast.expr) -> bool: + """Check if expression is type(self) or type(self_alias) call. + + Returns True for: + - type(self) + - type(var) where var was assigned from self (e.g., agent = self; type(agent)) + """ + if not isinstance(node, ast.Call): + return False + if not isinstance(node.func, ast.Name): + return False + if node.func.id != "type": + return False + if len(node.args) != 1: + return False + arg = node.args[0] + if not isinstance(arg, ast.Name): + return False + # Direct type(self) call + if arg.id == "self": + return True + # type(var) where var is an alias for self + if arg.id in self.self_ref_vars: + return True + return False + + def visit_Assign(self, node: ast.Assign) -> None: + """Check for ClassName.attr = value and track self/type(self) assignments.""" + # Track variables assigned from self (e.g., agent = self) + if isinstance(node.value, ast.Name) and node.value.id == "self": + for target in node.targets: + if isinstance(target, ast.Name): + self.self_ref_vars.add(target.id) + + # Track variables assigned from type(self) + if self._is_type_self_call(node.value): + for target in node.targets: + if isinstance(target, ast.Name): + self.class_ref_vars.add(target.id) + + for target in node.targets: + self._check_class_attribute_target(target, node) + self.generic_visit(node) + + def visit_AugAssign(self, node: ast.AugAssign) -> None: + """Check for ClassName.attr += value patterns.""" + self._check_class_attribute_target(node.target, node) + self.generic_visit(node) + + def visit_AnnAssign(self, node: ast.AnnAssign) -> None: + """Check for ClassName.attr: Type = value patterns.""" + if node.value is not None: # Has assignment, not just annotation + # Track variables assigned from self (e.g., agent: MyAgent = self) + if isinstance(node.value, ast.Name) and node.value.id == "self": + if isinstance(node.target, ast.Name): + self.self_ref_vars.add(node.target.id) + + # Track variables assigned from type(self) + if self._is_type_self_call(node.value): + if isinstance(node.target, ast.Name): + self.class_ref_vars.add(node.target.id) + + self._check_class_attribute_target(node.target, node) + self.generic_visit(node) + + def visit_Call(self, node: ast.Call) -> None: + """Check for setattr(ClassName, 'attr', value) patterns.""" + if isinstance(node.func, ast.Name) and node.func.id == "setattr": + if len(node.args) >= 2: + obj_arg = node.args[0] + + # Check setattr(ClassName, ...) + if isinstance(obj_arg, ast.Name): + if obj_arg.id in self.known_class_names: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"Cannot use setattr() on class '{obj_arg.id}'. " + f"This would corrupt all instances. " + f"Use setattr(self, ...) to modify the instance instead.", + code="E402", + severity="error", + fix_hint=f"setattr(self, ...) instead of setattr({obj_arg.id}, ...)", + ) + ) + elif obj_arg.id in self.class_ref_vars: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"Cannot use setattr() on '{obj_arg.id}' (assigned from type(self)). " + f"This would corrupt all instances. " + f"Use setattr(self, ...) to modify the instance instead.", + code="E402", + severity="error", + fix_hint="setattr(self, ...) instead", + ) + ) + + # Check setattr(type(self), ...) + elif self._is_type_self_call(obj_arg): + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message="Cannot use setattr() on type(self). " + "This would corrupt all instances. " + "Use setattr(self, ...) to modify the instance instead.", + code="E402", + severity="error", + fix_hint="setattr(self, ...) instead of setattr(type(self), ...)", + ) + ) + + self.generic_visit(node) + + def _check_class_attribute_target( + self, target: ast.expr, node: ast.Assign | ast.AugAssign | ast.AnnAssign + ) -> None: + """Check if assignment target is a class attribute.""" + if not isinstance(target, ast.Attribute): + return + + # Check for type(self).attr = value (inline pattern) + if self._is_type_self_call(target.value): + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message="Cannot assign to type(self) attribute. " + "This would corrupt all instances. " + "Use 'self.attr = ...' to assign to the instance instead.", + code="E401", + severity="error", + fix_hint=f"self.{target.attr} = ... instead of type(self).{target.attr} = ...", + ) + ) + return + + # Only check direct Name.attr patterns (not chained like self.obj.attr) + if not isinstance(target.value, ast.Name): + return + + name = target.value.id + + # Skip 'self' - that's instance assignment, which is fine + if name == "self": + return + + # Check if name is a known class + if name in self.known_class_names: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"Cannot assign to class attribute '{name}.{target.attr}'. " + f"This would corrupt all instances. " + f"Use 'self.{target.attr} = ...' to assign to the instance instead.", + code="E401", + severity="error", + fix_hint=f"self.{target.attr} = ... instead of {name}.{target.attr} = ...", + ) + ) + # Check if name is a variable holding a class reference (from type(self)) + elif name in self.class_ref_vars: + self.issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=f"Cannot assign to '{name}.{target.attr}' ('{name}' holds a class reference from type(self)). " + f"This would corrupt all instances. " + f"Use 'self.{target.attr} = ...' to assign to the instance instead.", + code="E401", + severity="error", + fix_hint=f"self.{target.attr} = ... instead of {name}.{target.attr} = ...", + ) + ) + + +# ============================================================================= +# Return-Type Shadow Validator +# ============================================================================= +def _collect_type_names(annotation: Any, namespace: dict[str, Any] | None = None) -> set[str]: + """Collect concrete class names referenced by a return-type annotation. + + Walks ``Annotated[...]``, ``list[T]``, ``dict[K, V]``, ``T | U``, ``Optional[T]``, + etc., and returns the names of any classes encountered. Standard typing + constructs like ``Union``, ``Optional`` and the ``typing`` module itself + are skipped — only names of concrete user-visible classes are returned. + Builtin types (``str``, ``int``, ``UnionType``, ...) are skipped at every + level so they don't pollute the protected set. + + String forward references (``"Answer"``, ``ForwardRef("Answer")``) — which + can leak through when ``from __future__ import annotations`` is in effect + and the framework's ``get_type_hints()`` call raised on construction — are + resolved against ``namespace`` if provided. If the name isn't in the + namespace, the walker degrades to a no-op for that branch rather than + raising; we'd rather under-protect than crash on a perfectly fine helper + class definition. + """ + + def is_user_class(t: Any) -> bool: + if not isinstance(t, type): + return False + module = getattr(t, "__module__", None) + # Skip stdlib type machinery: builtins (``str``, ``int``, ``list``), + # runtime typing internals (``types.UnionType``, ``typing`` aliases), + # and the abstract collection types (``collections.abc.Iterable`` / + # ``Callable`` show up as the origin of ``Iterable[T]`` / ``Callable[..., T]``). + # None of these are names an agent would meaningfully redefine. + return module not in {"builtins", "types", "typing", "collections.abc"} + + def resolve_forward_ref(name: str) -> Any: + """Look up a string name in the agent's exec_globals, if available.""" + if namespace is None: + return None + return namespace.get(name) + + names: set[str] = set() + + def visit(node: Any) -> None: + if node is None or node is type(None): + return + # String forward reference — resolve via the namespace. + if isinstance(node, str): + resolved = resolve_forward_ref(node) + if resolved is not None: + visit(resolved) + return + # ForwardRef objects (constructed by typing internals) wrap a name. + if isinstance(node, ForwardRef): + resolved = resolve_forward_ref(node.__forward_arg__) + if resolved is not None: + visit(resolved) + return + # Unwrap Annotated[T, ...] to its base type. + if get_origin(node) is Annotated: + args = get_args(node) + if args: + visit(args[0]) + return + # Generic alias like list[Answer], dict[str, Answer], Foo | Bar. + origin = get_origin(node) + if origin is not None: + if is_user_class(origin): + names.add(origin.__name__) + for arg in get_args(node): + visit(arg) + return + # Bare class. + if is_user_class(node): + names.add(node.__name__) + + visit(annotation) + return names + + +class ReturnTypeShadowValidator: + """Reject code that shadows the method's return type name. + + Catches three patterns: + 1. ``class Answer(BaseModel): ...`` — local class shadows the return type + (creates a distinct type that fails isinstance; see gl-143) + 2. ``def Answer(...): ...`` — local function shadows the name + 3. ``Answer = ...`` — assignment overwrites the type reference (the model + may set it to None or a wrong value, breaking later return_result calls) + + Generated code runs inside ``async def __repl_wrapper__():`` (see + ``runtime/actor.py``), so any local binding of the return type name + creates a scoped shadow that breaks ``return_result()`` validation. + + The validator looks up the class names referenced by the method's declared + return type (via ``ValidationContext.return_type``) and rejects any local + definition or assignment that would shadow them. Helpers with unrelated + names (``def gcd(...)``, ``x = 42``) are not affected. + """ + + def validate(self, tree: ast.AST, context: ValidationContext) -> list[ValidationIssue]: + protected = _collect_type_names(context.return_type, context.exec_globals) + if not protected: + return [] + + # ``UnifiedCodeValidator.validate`` always parses with ``ast.parse(code)``, + # which returns an ``ast.Module``. The Validator protocol uses ``ast.AST`` + # for flexibility; narrow here so .body access type-checks. + if not isinstance(tree, ast.Module): + return [] + + issues: list[ValidationIssue] = [] + for node in tree.body: + kind: str | None = None + name: str | None = None + if isinstance(node, ast.ClassDef): + kind = "class" + name = node.name + elif isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef)): + kind = "function" + name = node.name + elif isinstance(node, ast.Assign): + # Check if any assignment target shadows a protected name + for target in node.targets: + shadowed = self._assignment_target_names(target) & protected + if shadowed: + kind = "assignment" + name = next(iter(shadowed)) + break + elif isinstance(node, ast.AnnAssign) and isinstance(node.target, ast.Name): + if node.target.id in protected: + kind = "assignment" + name = node.target.id + if kind is None or name is None: + continue + if name not in protected: + continue + + from nooa.runtime.harness_metrics import get_harness_metrics + + get_harness_metrics().return_type_redefined(name) + + if kind == "assignment": + issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=( + f"Cannot reassign '{name}' — it is the return type of this " + f"method. Overwriting it will break return_result() validation. " + f"Use '{name}(...)' directly to construct your result." + ), + code="E501", + severity="error", + fix_hint=( + f"remove '{name} = ...' — '{name}' is already available; " + f"construct it directly with {name}(...)" + ), + ) + ) + else: + issues.append( + ValidationIssue( + line=node.lineno, + col=node.col_offset, + message=( + f"Cannot redefine '{name}' here — it is already in scope as " + f"the return type of this method. A local {kind} definition " + f"shadows it with a __repl_wrapper__-scoped {kind}, and " + f"return_result() will reject the resulting value as the wrong " + f"type. Use the existing '{name}' (already imported) instead." + ), + code="E501", + severity="error", + fix_hint=( + f"remove the local '{kind} {name}(...)' — '{name}' is " + f"already available; construct it directly with " + f"{name}(...)" + ), + ) + ) + return issues + + @staticmethod + def _assignment_target_names(target: ast.AST) -> set[str]: + """Extract all names from an assignment target (handles tuple unpacking and starred).""" + names: set[str] = set() + if isinstance(target, ast.Name): + names.add(target.id) + elif isinstance(target, ast.Starred): + # *Answer in tuple unpacking — unwrap to get the Name + if isinstance(target.value, ast.Name): + names.add(target.value.id) + elif isinstance(target, (ast.Tuple, ast.List)): + for elt in target.elts: + if isinstance(elt, ast.Name): + names.add(elt.id) + elif isinstance(elt, ast.Starred) and isinstance(elt.value, ast.Name): + names.add(elt.value.id) + return names + + +# ============================================================================= +# Blocking Call Validator +# ============================================================================= +class BlockingCallValidator: + """Validates code for blocking calls that would freeze the event loop. + + Resolves AST names against exec_globals to determine module of origin. + Replaces AsyncSafetyValidator with runtime-aware name resolution instead + of string matching. + + Note: This validator does NOT check for missing ``await`` on async calls. + For example, ``asyncio.sleep(1)`` (without ``await``) passes this validator + because ``asyncio.sleep`` is not a blocking call — it's an async function + called incorrectly. The missing ``await`` is caught by REPLPolicyValidator + (error code E301). Both validators must be active for complete coverage. + """ + + def __init__( + self, + restrictions: RestrictionsConfig | None = None, + ): + self.restrictions = restrictions or RestrictionsConfig() + + def validate(self, tree: ast.AST, context: ValidationContext) -> list[ValidationIssue]: + visitor = _BlockingCallVisitor( + exec_globals=context.exec_globals, + restrictions=self.restrictions, + ) + visitor.visit(tree) + return visitor.issues + + +class _BlockingCallVisitor(ast.NodeVisitor): + """AST visitor that detects blocking calls using runtime-resolved names.""" + + def __init__( + self, + exec_globals: dict[str, Any], + restrictions: RestrictionsConfig, + ): + self.exec_globals = exec_globals + self.blocked_modules = restrictions.blocked_modules + self.blocked_calls = restrictions.blocked_calls + self.issues: list[ValidationIssue] = [] + # Track local variables assigned from constructors on blocked-call modules. + # Maps var_name -> (module_name, class_name) + self.tracked_locals: dict[str, tuple[str, str]] = {} + + def _resolve_module_from_call(self, node: ast.Call) -> str | None: + """Resolve the module of a chained call like asyncio.get_event_loop(). + + For `asyncio.get_event_loop().run_until_complete(...)`, the inner call + `asyncio.get_event_loop()` has its function's value as the `asyncio` Name. + We resolve that to the asyncio module. + """ + if isinstance(node.func, ast.Attribute): + return self._resolve_module(node.func.value) + return None + + def _resolve_module(self, node: ast.expr) -> str | None: + """Resolve an AST expression to its module name via exec_globals. + + For non-module objects, falls back to obj.__module__. Same caveat as + is_from_blocked_module(): safe with curated block lists but could + over-match if a broadly-used module like "io" were added. + """ + if isinstance(node, ast.Name): + obj = self.exec_globals.get(node.id) + if isinstance(obj, types.ModuleType): + return obj.__name__ + return getattr(obj, "__module__", None) + if isinstance(node, ast.Attribute): + # For chained attributes like os.path.join, resolve the leftmost name + return self._resolve_module(node.value) + return None + + def _add_issue(self, node: ast.AST, module_name: str, call_name: str) -> None: + self.issues.append( + ValidationIssue( + line=getattr(node, "lineno", 0), + col=getattr(node, "col_offset", 0), + message=( + f"{module_name}.{call_name}() blocks the event loop and is not " + f"allowed in agent code. Use 'await' with an async alternative " + f"or an appropriate agent tool." + ), + code="E310", + severity="error", + ) + ) + + def visit_Assign(self, node: ast.Assign) -> Any: + """Track local variables assigned from constructors on blocked-call modules.""" + # Track: t = threading.Thread(...) -> tracked_locals["t"] = ("threading", "Thread") + if isinstance(node.value, ast.Call) and isinstance(node.value.func, ast.Attribute): + module_name = self._resolve_module(node.value.func.value) + if module_name: + matched = match_blocked_module(module_name, self.blocked_calls) + if matched: + class_name = node.value.func.attr + for target in node.targets: + if isinstance(target, ast.Name): + self.tracked_locals[target.id] = (matched, class_name) + self.generic_visit(node) + + def visit_Call(self, node: ast.Call) -> Any: + """Check each call against blocked modules and blocked calls.""" + if isinstance(node.func, ast.Attribute): + # e.g., subprocess.run(), time.sleep(), t.join() + module_name = self._resolve_module(node.func.value) + call_name = node.func.attr + + if module_name: + # Check fully blocked modules + matched = match_blocked_module(module_name, self.blocked_modules) + if matched: + self._add_issue(node, matched, call_name) + return self.generic_visit(node) + + # Check partially blocked calls + matched = match_blocked_module(module_name, self.blocked_calls) + if matched: + if call_name in self.blocked_calls[matched]: + self._add_issue(node, matched, call_name) + return self.generic_visit(node) + + # Check local variable tracking (for Thread.join, Lock.acquire etc.) + if isinstance(node.func.value, ast.Name): + var_name = node.func.value.id + if var_name in self.tracked_locals: + tracked_module, class_name = self.tracked_locals[var_name] + if tracked_module in self.blocked_calls: + blocked = self.blocked_calls[tracked_module] + dotted = f"{class_name}.{call_name}" + if dotted in blocked or call_name in blocked: + self._add_issue(node, tracked_module, call_name) + + # Check chained calls: e.g. asyncio.get_event_loop().run_until_complete() + if isinstance(node.func.value, ast.Call): + chained_module = self._resolve_module_from_call(node.func.value) + if chained_module: + matched = match_blocked_module(chained_module, self.blocked_calls) + if matched and call_name in self.blocked_calls[matched]: + self._add_issue(node, matched, call_name) + + elif isinstance(node.func, ast.Name): + # e.g., run(['ls']) where run = subprocess.run + obj = self.exec_globals.get(node.func.id) + if obj is not None: + obj_module = getattr(obj, "__module__", None) + if obj_module: + matched_blocked = match_blocked_module(obj_module, self.blocked_modules) + if matched_blocked: + self._add_issue(node, matched_blocked, node.func.id) + else: + matched_calls = match_blocked_module(obj_module, self.blocked_calls) + if matched_calls: + fn_name = getattr(obj, "__name__", node.func.id) + if fn_name in self.blocked_calls[matched_calls]: + self._add_issue(node, matched_calls, fn_name) + + self.generic_visit(node) + + +# ============================================================================= +# Unified Code Validator +# ============================================================================= +class UnifiedCodeValidator: + """Orchestrates multiple validators with consistent error handling. + + This is the main entry point for code validation. It runs all validators + and formats errors in IPython-style with source context. + + By default, includes SecurityValidator and BlockingCallValidator, + which are the checks performed by execute_code(). The REPLPolicyValidator + (class definitions, missing await) is used by strategies separately. + """ + + def __init__( + self, + validators: list[Validator] | None = None, + *, + include_repl_policy: bool = False, + restrictions: RestrictionsConfig | None = None, + ): + """Initialize with validators. + + Args: + validators: List of validators to use. If provided, overrides defaults. + include_repl_policy: If True, include REPLPolicyValidator (class defs, + missing await). Default False since strategies handle this separately. + restrictions: Code execution restrictions (blocked modules/calls). + None uses defaults from RestrictionsConfig(). + """ + if validators is not None: + self.validators: list[Validator] = validators + else: + self.validators = [ + SecurityValidator(), + BlockingCallValidator( + restrictions=restrictions, + ), + ClassAssignmentValidator(), + ReturnTypeShadowValidator(), + ] + if include_repl_policy: + self.validators.append(REPLPolicyValidator()) + + def validate( + self, + code: str, + context: ValidationContext, + *, + stop_on_first_error: bool = True, + ) -> None: + """Validate code against all registered validators. + + Args: + code: Python source code to validate + context: Validation context with settings + stop_on_first_error: If True, stop at first error (default) + + Raises: + ValidationError: With IPython-style formatting + """ + # Handle empty/whitespace code + if not code or not code.strip(): + return + + # Update context with code + context.code = code + + # Parse AST + try: + tree = ast.parse(code) + except SyntaxError as e: + raise ValidationError(f"Syntax error: {e}", original_exception=e) from e + + # Run validators + all_issues: list[ValidationIssue] = [] + for validator in self.validators: + issues = validator.validate(tree, context) + all_issues.extend(issues) + + if stop_on_first_error and any(i.severity == "error" for i in issues): + break + + # Format and raise errors + errors = [i for i in all_issues if i.severity == "error"] + if errors: + raise ValidationError(self._format_error(code, errors[0], context)) + + # Log warnings + warnings = [i for i in all_issues if i.severity == "warning"] + for warning in warnings: + logger.warning(f"Validation warning [{warning.code}]: {warning.message}") + + def _format_error(self, code: str, issue: ValidationIssue, context: ValidationContext) -> str: + """Format error in IPython style with source context.""" + lines = code.split("\n") + source_line = lines[issue.line - 1] if 1 <= issue.line <= len(lines) else "" + + cell_name = f"Cell In[{context.execution_count}]" + indent = " " + caret = " " * issue.col + "^" + + parts = [ + f"{cell_name}, line {issue.line}", + f"{indent}{source_line}", + f"{indent}{caret}", + issue.message, + ] + + if issue.fix_hint: + parts.append(f"\nFix: {issue.fix_hint}") + + if issue.doc_link: + parts.append(f"\nSee: {issue.doc_link}") + + return "\n".join(parts) + + +# ============================================================================= +# Import Pre-processing +# ============================================================================= +def strip_redundant_imports(code: str, available_names: set[str]) -> tuple[str, list[str]]: + """Remove import statements where all imported names are already in scope. + + LLMs habitually prepend imports (``from typing import Literal``, + ``from strategy import ...``) even when those names are pre-loaded. + Rather than erroring, we silently strip these lines so both the + validator and the runtime see clean code. + + Only strips an import when *every* name it would introduce is already + present in ``available_names``. Imports that bring genuinely new names + are left untouched (and will be caught by the security validator if + the module is forbidden). + + Returns: + Tuple of (cleaned_code, stripped_statements) where stripped_statements + is a list of the full original import source lines that were removed. + """ + try: + tree = ast.parse(code) + except SyntaxError: + return code, [] + + indices_to_remove: set[int] = set() + + for i, node in enumerate(tree.body): + if isinstance(node, ast.Import): + # ``import X`` / ``import X as Y`` — check alias or module name + all_present = all( + (alias.asname or alias.name) in available_names for alias in node.names + ) + if all_present: + indices_to_remove.add(i) + + elif isinstance(node, ast.ImportFrom): + # ``from X import a, b`` — check each imported name + if any(alias.name == "*" for alias in node.names): + continue # never strip star imports + all_present = all( + (alias.asname or alias.name) in available_names for alias in node.names + ) + if all_present: + indices_to_remove.add(i) + + if not indices_to_remove: + return code, [] + + # Collect the original source text for each stripped import (for telemetry). + source_lines_for_stmts = code.splitlines() + stripped_statements: list[str] = [] + for i, node in enumerate(tree.body): + if i in indices_to_remove: + # Reconstruct the import statement from its source line range. + start = node.lineno - 1 + end = (node.end_lineno or node.lineno) - 1 + stmt_lines = source_lines_for_stmts[start : end + 1] + # Strip leading/trailing whitespace for a clean record. + stripped_statements.append("\n".join(stmt_lines).strip()) + + # Collect the 1-based line numbers covered by each removed import node. + # Use lineno/end_lineno so multi-line imports are fully removed. + lines_to_remove: set[int] = set() + for i, node in enumerate(tree.body): + if i in indices_to_remove: + for line_num in range(node.lineno, (node.end_lineno or node.lineno) + 1): + lines_to_remove.add(line_num) + + # Handle the semicolon edge case: a kept node starts on the same physical + # line as a removed import (e.g. `from typing import Literal; x = 1`). + # We reconstruct using the original source character ranges so that + # inline comments and multi-line formatting are preserved exactly. + source_lines = code.splitlines(keepends=True) + + # Group kept nodes by starting line, but only for mixed lines. + kept_on_removed: dict[int, list[ast.stmt]] = {} + for i, node in enumerate(tree.body): + if i not in indices_to_remove and node.lineno in lines_to_remove: + kept_on_removed.setdefault(node.lineno, []).append(node) + + # For each mixed line, extract the kept nodes' text from the original source. + # For the last (rightmost) kept node, we take from its col_offset to end of + # the physical line — this picks up any trailing comment as well as the + # opening of a multi-line expression. For preceding nodes we take the exact + # character range [col_offset:end_col_offset] to avoid including the import. + # Multi-line kept nodes: only the first line is reconstructed here; + # continuation lines are not in lines_to_remove so they emit normally below. + reconstructed: dict[int, list[str]] = {} + for mixed_line, nodes in kept_on_removed.items(): + raw_line = source_lines[mixed_line - 1].rstrip("\n\r") + nodes_sorted = sorted(nodes, key=lambda n: n.col_offset) + + # Effective end column on this line: multi-line nodes extend to EOL. + def eff_end(n: ast.stmt, line: str) -> int: + end_lineno = n.end_lineno or n.lineno + return len(line) if end_lineno > n.lineno else (n.end_col_offset or 0) + + max_end = max(eff_end(n, raw_line) for n in tree.body if n.lineno == mixed_line) + + parts: list[str] = [] + for j, node in enumerate(nodes_sorted): + is_rightmost_last = j == len(nodes_sorted) - 1 and eff_end(node, raw_line) == max_end + if is_rightmost_last or (node.end_lineno or node.lineno) > node.lineno: + # Take to end of physical line: captures trailing comment and + # the opening of any parenthesised multi-line expression. + parts.append(raw_line[node.col_offset :]) + else: + # Exact range only — more nodes follow on this line. + parts.append(raw_line[node.col_offset : node.end_col_offset]) + reconstructed[mixed_line] = parts + + # Reconstruct source by dropping only removed lines, preserving comments, + # blank lines, and original line numbering so validation error messages + # reference the correct lines when shown back to the LLM. + # Continuation lines of multi-line kept nodes are not in lines_to_remove + # and emit verbatim via the else branch below. + result_parts: list[str] = [] + for line_num, line in enumerate(source_lines, start=1): + if line_num in reconstructed: + for text in reconstructed[line_num]: + result_parts.append(text + "\n") + elif line_num in lines_to_remove: + pass # pure import line — drop it + else: + result_parts.append(line) + return "".join(result_parts), stripped_statements + + +# ============================================================================= +# Convenience Functions +# ============================================================================= +def validate_code( + code: str, + *, + agent_class: type | None = None, + available_names: list[str] | None = None, + importable_modules: set[str] | None = None, + restricted_imports: frozenset[str] | None = None, + blocked_modules: frozenset[str] | None = None, + forbidden_self_calls: list[str] | None = None, + execution_count: int = 1, + agent: Any = None, + return_type: Any = None, +) -> None: + """Convenience function to validate code. + + This wraps UnifiedCodeValidator for backwards compatibility and convenience. + + Args: + code: Python source code to validate + agent_class: Agent class for decorator checking + available_names: Names available in scope + importable_modules: Deprecated — use restricted_imports instead + restricted_imports: Deny list of module names. None uses RestrictionsConfig default. + blocked_modules: Hard-blocked modules. None uses RestrictionsConfig default. + forbidden_self_calls: Method names that can't be called on self + execution_count: Execution count for Cell In[N] format + agent: Agent instance for method introspection + return_type: Return type annotation of the executing method, used by + ReturnTypeShadowValidator to reject local class definitions that + would shadow the return type in __repl_wrapper__ scope. + + Raises: + ValidationError: If validation fails + """ + from nooa.runtime.restrictions import RestrictionsConfig + + rc = RestrictionsConfig() + context = ValidationContext( + code=code, + agent_class=agent_class, + available_names=set(available_names or []), + importable_modules=importable_modules or set(), + restricted_imports=restricted_imports + if restricted_imports is not None + else rc.restricted_imports, + blocked_modules=blocked_modules if blocked_modules is not None else rc.blocked_modules, + forbidden_self_calls=set(forbidden_self_calls or []), + execution_count=execution_count, + agent=agent, + return_type=return_type, + ) + validator = UnifiedCodeValidator() + validator.validate(code, context) diff --git a/examples/cybergym/nooa_cybergym/_vendor/shell_tools.py b/examples/cybergym/nooa_cybergym/_vendor/shell_tools.py new file mode 100644 index 000000000..d1a9b1455 --- /dev/null +++ b/examples/cybergym/nooa_cybergym/_vendor/shell_tools.py @@ -0,0 +1,788 @@ +# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved. +# SPDX-License-Identifier: Apache-2.0 +"""ShellTools — persistent shell + file ops with grep that hands you editable Match objects. + +Identical surface to v4 (run / read / replace / write_file). The one addition: +when ``run()`` executes a *pure search* (a bare grep/rg/egrep with no +output-mangling pipe or anchor-dropping flag), the result still prints as the +exact bytes the agent's command produced — but it ALSO carries a parsed +``.matches`` list of ``Match`` objects, ready to hand straight to ``replace()``. + +The agent sees no new method and no changed output. Under the hood we run the +equivalent ``rg --json`` purely to harvest anchors, and attach the matches ONLY +when we can prove the anchor set is trustworthy. Any divergence, any unhandled +flag, any pipe -> ``.matches`` is ``None`` (fail-closed). An incomplete gate can +only ever *miss* an opportunity to help; it can never produce a wrong anchor. + +Motivation: in the SWE-bench bake-off the agent issued ~12 search calls/session +and used the structured ``.matches()`` path 0 times — it greps and eyeballs +text. Making every safe grep an on-ramp to a Match-based edit attacks the #1 +error class (string-escaping in inline edits) for free. + +Attach to an agent:: + + class MyAgent(Agent, llm=llm): + def __init__(self, *a, **kw): + super().__init__(*a, **kw) + self.shell = ShellTools(cwd="/path/to/repo") +""" + +from __future__ import annotations + +import json +import re +import shlex +from collections.abc import AsyncIterator +from pathlib import Path +from typing import Annotated, Any + +from nooa.agentdoc import hidden, spec +from nooa.skill import Skill +from nooa.tools._bash_session import BashSession +from nooa.tools._results import StreamDone, StreamEvent + + +class FileWrite: + """Result of a write/replace operation.""" + + def __init__(self, path: str, message: str, diff: str = ""): + self.path = path + self.message = message + self.diff = diff + + def __str__(self) -> str: + parts = [self.message] + if self.diff: + parts.append(self.diff) + return "\n".join(parts) + + def __repr__(self) -> str: + return str(self) + + +class Match: + """Editable file anchor returned by file/search tools. + + Pass any ``Match`` to ``self.shell.replace(match, new_text)``. Print it to + view numbered lines. Slice with ``match[start:end]`` (1-indexed inclusive + line numbers) to narrow the region before replacing. + """ + + def __init__(self, path: str, start: int, end: int, text: str): + self._path = path + self._start = start + self._end = end + self._text = text + + @property + def path(self) -> str: + """File path.""" + return self._path + + @property + def start(self) -> int: + """First line number (1-indexed).""" + return self._start + + @property + def end(self) -> int: + """Last line number (1-indexed, inclusive).""" + return self._end + + @property + def text(self) -> str: + """Raw file content (no line numbers).""" + return self._text + + @property + def numbered(self) -> str: + """Content with line-number gutter.""" + lines = self._text.splitlines(keepends=True) + width = len(str(self._end)) + numbered = [] + for i, line in enumerate(lines, self._start): + numbered.append(f"{i:>{width}}| {line.rstrip(chr(10))}") + return "\n".join(numbered) + + def __str__(self) -> str: + return self.numbered + + def __repr__(self) -> str: + return f"Match({self._path!r}, lines {self._start}-{self._end})" + + def __getitem__(self, key: Any) -> Match: + lines = self._text.splitlines(keepends=True) + if isinstance(key, slice): + start = key.start if key.start is not None else self._start + stop = key.stop if key.stop is not None else self._end + if start < self._start: + start = self._start + if stop > self._end: + stop = self._end + idx_start = start - self._start + idx_end = stop - self._start + 1 + text = "".join(lines[idx_start:idx_end]) + return Match(self._path, start, stop, text) + + raise TypeError(f"indices must be int or slice, not {type(key).__name__}") + + +class ShellResult(str): + """Result of run() — a str subclass whose VALUE is stdout. + + String operations (``"x" in r``, ``r.splitlines()``, ``r.strip()``) act on + stdout, so existing code keeps working. But ``repr(r)`` / ``print(r)`` show + a structured ``BashOutput(...)`` view that surfaces stderr and a non-zero + return code as named fields — so failures can't be missed (a crashing + command with empty stdout no longer prints as blank). + + ``.matches`` is a ``list[Match]`` when the command was a pure search and the + anchors are trustworthy; otherwise ``None``. + """ + + stdout: str + stderr: str + returncode: int + timed_out: bool + success: bool + matches: list[Match] | None + + def __new__( + cls, + stdout: str, + stderr: str = "", + returncode: int = 0, + matches: list[Match] | None = None, + timed_out: bool = False, + ): + obj = super().__new__(cls, stdout) + obj.stdout = stdout + obj.stderr = stderr + obj.returncode = returncode + obj.timed_out = timed_out + obj.success = returncode == 0 + obj.matches = matches + return obj + + def __repr__(self) -> str: + parts = [f"stdout={self.stdout!r}"] + if self.stderr: + parts.append(f"stderr={self.stderr!r}") + if self.returncode != 0: + parts.append(f"return_code={self.returncode}") + return f"BashOutput({', '.join(parts)})" + + def __str__(self) -> str: + return self.__repr__() + + @property + def text(self) -> str: + """The structured display text (i.e. ``str(self)``).""" + return self.__repr__() + + +# Flag letters that drop the per-line/span anchor or change match semantics so +# that grep and rg can disagree. If a short-flag cluster contains any of these, +# we refuse to attach matches. +# o = only-matching, c = count, l/L = files-with/without, A/B/C = context, +# z/Z = NUL data / multiline, P = PCRE (semantics differ from rg default). +_ANCHOR_BREAKING_FLAGS = set("oclLABCDzZP") + +# Pipe targets that rewrite columns/lines, breaking the file:line mapping. +_MANGLING_PIPE = re.compile(r"\|\s*(sed|awk|cut|sort|uniq|tr|head|tail|wc|xargs|rev)\b") + +_SEARCH_HEAD = re.compile(r"^\s*(grep|egrep|rg)\b") +_LONG_ANCHOR_BREAKING = ( + "--pcre2", + "--null-data", + "--count", + "--files-with-matches", + "--files-without-match", + "--only-matching", + "--multiline", + "--context", + "--after-context", + "--before-context", +) + + +def _has_unquoted_pipe(cmd: str) -> bool: + """True if cmd contains a shell pipe ``|`` outside of quotes.""" + in_single = in_double = False + for ch in cmd: + if ch == "'" and not in_double: + in_single = not in_single + elif ch == '"' and not in_single: + in_double = not in_double + elif ch == "|" and not in_single and not in_double: + return True + return False + + +# Pipes that merely truncate output without mangling line structure. +_SAFE_TAIL_PIPE = re.compile(r"\|\s*(head|tail)(\s+-[0-9n]+)?\s*$") + + +# Pattern: find ... | xargs grep ... (content search via xargs) +_XARGS_GREP = re.compile(r"find\s+.+\|\s*xargs\s+grep") + + +def is_pure_search_command(cmd: str) -> bool: + """True iff ``cmd`` is a bare grep/rg/egrep whose matches map 1:1 to lines. + + Also detects `find ... | xargs grep -n ...` which produces the same + filename:lineno:content format as grep -rn. + + Conservative by design: anything that could make grep and rg disagree, or + that mangles the output columns, returns False so the caller attaches no + matches. This is the gate that keeps the feature fail-closed. + """ + c = cmd.strip() + # Strip shell prefix commands: "cd /path &&", "pushd /x &&", etc. + if "&&" in c: + c = c.split("&&")[-1].strip() + # Strip safe tail pipes (| head -N, | tail -N) before checking. + c_no_tail = _SAFE_TAIL_PIPE.sub("", c).strip() + # Detect "find ... | xargs grep ..." — extract the grep portion + if _XARGS_GREP.search(c_no_tail): + xargs_idx = c_no_tail.find("xargs grep") + grep_part = "grep" + c_no_tail[xargs_idx + len("xargs grep") :] + # Strip any trailing | head/tail from the grep part + grep_part = _SAFE_TAIL_PIPE.sub("", grep_part).strip() + # Check for anchor-breaking flags on the grep portion + for cluster in re.findall(r"(?:^|\s)-([A-Za-z]+)", grep_part): + if set(cluster) & _ANCHOR_BREAKING_FLAGS: + return False + # Must have -n somewhere for line numbers + has_n = any("n" in cl for cl in re.findall(r"(?:^|\s)-([A-Za-z]+)", grep_part)) + return has_n + if not _SEARCH_HEAD.match(c_no_tail): + return False + # A pipe to anything that reshapes lines/columns invalidates anchors. + if _MANGLING_PIPE.search(c_no_tail): + return False + # A real shell pipe (outside quotes) that isn't head/tail — refuse. + if _has_unquoted_pipe(c_no_tail): + return False + # Long-form anchor-breaking flags. + if any(flag in c_no_tail for flag in _LONG_ANCHOR_BREAKING): + return False + # Short-flag clusters: -rnP, -o, -A2, etc. Inspect each cluster's letters. + for cluster in re.findall(r"(?:^|\s)-([A-Za-z]+)", c_no_tail): + if set(cluster) & _ANCHOR_BREAKING_FLAGS: + return False + return True + + +class ShellTools(Skill): + """ + Persistent shell + file ops, with grep that hands you editable Match objects. + + Four methods — no new tools to learn: + run(command, stdin=, timeout=) — shell command (cd/env/cwd persist) + read(path, lines=) — view a file/region -> Match + replace(match_or_path, ...) — edit at a Match anchor, or by unique string + write_file(path, content) — create/overwrite a file + + Grep that you can edit from directly. When run() executes a plain search + (grep/rg/egrep), the result still prints the EXACT bytes your command + produced — and it also carries ``.matches``, a list of Match objects you can + pass straight to replace(). No re-grep, no parsing the text yourself:: + + r = await shell.run("grep -rn 'def foo' src/") + print(r) # byte-accurate grep output, unchanged + await shell.replace(r.matches[0], new_code) # edit the first hit + + ``r.matches`` is ``None`` (not an error — just "no structured anchors") when + the command isn't a verifiable plain search: anything piped into + sed/awk/cut/sort/head, context/count/only-matching/files-only flags + (-A/-B/-C/-c/-o/-l), PCRE (-P), or grep without -n. In those cases use the + text in ``r``/``r.stdout`` as usual. The matches are attached ONLY when they + provably equal what your own grep reported — so they are never wrong, only + sometimes absent. + + Editing without a search — view a region, then replace it (no copy-paste of + the old text, so no quoting/escaping mistakes):: + + region = await shell.read("f.py", lines=(10, 25)) # -> Match + print(region) # numbered lines + await shell.replace(region, new_code) # exact-anchor edit + + Running scripts — pass the payload as ``stdin=`` instead of embedding quotes + in an inline ``python -c "..."`` (which is the #1 source of syntax errors):: + + """ + + def __init__(self, cwd: str = ".", init_command: str | None = None, **kwargs: Any): + super().__init__(**kwargs) + self.cwd = Path(cwd).resolve() + # Construct the session eagerly (it starts lazily on first run) so a + # consumer wired at construction time — e.g. RepoTools(session=shell.session) + # in the TUI — shares this shell's bash session instead of capturing None. + # ``init_command`` (if given) runs once on session start, before any user + # command, to set up the environment (e.g. activate a conda env). + self._session: BashSession = BashSession(cwd=str(self.cwd), init_command=init_command) + + def __repr__(self) -> str: + return f"ShellTools(cwd={self.cwd!s})" + + @property + @hidden + def session(self) -> BashSession: + """The underlying persistent bash session (shared with e.g. RepoTools).""" + return self._session + + async def _get_session(self) -> BashSession: + if not self._session._started: + await self._session.start() + return self._session + + @hidden + async def close(self) -> None: + """Terminate the underlying bash session owned by this shell.""" + await self._session.close() + + def _resolve_path(self, path: str) -> Path: + """Resolve a file-operation path and require it to remain inside cwd.""" + root = self.cwd.resolve() + resolved = (root / path).resolve() + try: + resolved.relative_to(root) + except ValueError as exc: + raise ValueError(f"path escapes ShellTools cwd: {path}") from exc + return resolved + + async def run( + self, + command: Annotated[str, spec(description="Shell command to execute")], + *, + stdin: Annotated[ + str | None, spec(description="Text piped to stdin (replaces heredocs)") + ] = None, + timeout: Annotated[float, spec(description="Max seconds")] = 30.0, + ) -> ShellResult: + """ + Run a shell command in the persistent session (cd/env/cwd survive). + + Pass a payload as stdin= instead of heredocs. Result is a str subclass + with .stdout / .stderr / .returncode / .success. + + If the command is a pure search (grep/rg/egrep, no mangling pipe or + anchor-dropping flag), the result also carries .matches — a list of + Match objects you can pass straight to replace(). The printed output is + always the exact bytes your command produced. + + Args: + command: Shell command to execute. + stdin: Text piped to stdin (no quoting needed). + timeout: Max seconds before timeout. + """ + session = await self._get_session() + run_cmd = self._with_stdin(command, stdin) + stdout, stderr, code, timed_out = await session.run_with_timeout_flag( + run_cmd, timeout=timeout + ) + # Track cwd changes for read/replace/write_file path resolution + pwd_out, _, _, _ = await session.run_with_timeout_flag("pwd", timeout=5.0) + if pwd_out.strip(): + self.cwd = Path(pwd_out.strip()) + + matches: list[Match] | None = None + _is_search = stdin is None and is_pure_search_command(command) + if _is_search: + matches = await self._harvest_matches(command, stdout) + + if matches: + print( + f"# self.shell.run({command!r:.60}) found {len(matches)} match(es).\n" + f"# Edit directly: m = .matches[0]; await self.shell.replace(m, new_text)" + ) + + return ShellResult( + stdout=stdout, + stderr=stderr, + returncode=code, + matches=matches, + timed_out=timed_out, + ) + + async def run_stream( + self, + command: Annotated[str, spec(description="Shell command to execute")], + timeout: Annotated[float, spec(description="Max seconds to wait before timeout")] = 30.0, + ) -> AsyncIterator[StreamEvent | StreamDone]: + """Stream command output line-by-line as it arrives, ending with a done event. + + Yields ``StreamEvent`` chunks (``.kind`` is "stdout"/"stderr", ``.text`` + the chunk) incrementally, then a final ``StreamDone`` (``.returncode``, + ``.timed_out``) once the command completes. Runs in the persistent + session, like ``run``. + + This is what ``pyp.arun(self.shell, ...)`` consumes to stream output:: + + fails = await self.pyp.arun(self.shell, "make test").grep("FAIL").collect() + """ + session = await self._get_session() + timed_out = False + exit_code = 0 + async for stream_name, chunk in session.run_stream(command, timeout=timeout): + if stream_name == "__done__": + parts = chunk.split(",") + exit_code = int(parts[0]) + timed_out = bool(int(parts[1])) if len(parts) > 1 else False + break + yield StreamEvent(kind=stream_name, text=chunk) + yield StreamDone(kind="done", returncode=exit_code, timed_out=timed_out) + + @staticmethod + def _with_stdin(command: str, stdin: str | None) -> str: + """Wrap a command so ``stdin`` is fed via a base64'd tempfile (no quoting).""" + if stdin is None: + return command + import base64 + + b64 = base64.b64encode(stdin.encode()).decode() + return ( + f"__nemo_in=$(mktemp); base64 -d <<<{b64} > $__nemo_in; " + f"({command}) < $__nemo_in; __nemo_rc=$?; rm -f $__nemo_in; " + f"( exit $__nemo_rc )" + ) + + async def _harvest_matches(self, command: str, displayed_stdout: str) -> list[Match] | None: + """Run the rg --json equivalent and parse anchors — fail-closed. + + Returns a list of Match (possibly empty) only if the rg run succeeds and + the set of (path, line) anchors it reports is consistent with the lines + the agent's own command printed. On any doubt, returns None. + """ + # Strip shell prefix (cd ... &&) and safe tail pipes (| head/tail) + cmd = command.strip() + if "&&" in cmd: + cmd = cmd.split("&&")[-1].strip() + cmd = _SAFE_TAIL_PIPE.sub("", cmd).strip() + # For "find ... | xargs grep ...", extract the grep portion + if _XARGS_GREP.search(cmd): + xargs_idx = cmd.find("xargs grep") + cmd = "grep" + cmd[xargs_idx + len("xargs grep") :] + try: + pattern, paths, ignore_case, fixed = self._parse_search(cmd) + except Exception: + return None + if pattern is None: + return None + + args = ["rg", "--json", "-n", "--no-ignore"] + if ignore_case: + args.append("-i") + if fixed: + args.append("-F") + args += ["--", pattern, *(paths or ["."])] + rg_cmd = " ".join(shlex.quote(a) for a in args) + # Find rg: try PATH, then common overlay/venv locations + rg_cmd = "PATH=/opt/harbor/cpython312/bin:/opt/harbor/bin:$PATH " + rg_cmd + + session = await self._get_session() + try: + rg_out, _rg_err, rg_code, _timed = await session.run_with_timeout_flag( + rg_cmd, timeout=30.0 + ) + except Exception: + return None + # rg: 0 = matches, 1 = no matches. Anything else (bad regex, no rg) -> bail. + if rg_code not in (0, 1): + return None + + anchors: list[tuple[str, int]] = [] + file_cache: dict[str, list[str]] = {} + for raw in rg_out.splitlines(): + raw = raw.strip() + if not raw: + continue + try: + d = json.loads(raw) + except json.JSONDecodeError: + return None # malformed JSON stream — don't guess + if d.get("type") != "match": + continue + data = d["data"] + mpath = data["path"]["text"] + if mpath.startswith("./"): + mpath = mpath[2:] + line_no = data["line_number"] + anchors.append((mpath, line_no)) + + # Cross-check: every anchor line must correspond to a line the agent's + # displayed output reported (when that output is the standard file:line: + # format). If the displayed output isn't in that shape, we can't verify + # -> attach nothing. + # + # Single explicit file: grep omits the filename, so its output is + # ``line:...`` (no path). The path is known a priori from the parsed + # command, so pass it in to let line-only output reconcile against the + # one file we searched. + single_file = paths[0] if len(paths) == 1 and not paths[0].endswith("/") else None + if single_file and single_file.startswith("./"): + single_file = single_file[2:] + displayed = self._displayed_anchor_lines(displayed_stdout, single_file=single_file) + if displayed is None: + # The command's own output isn't in verifiable file:line: form + # (e.g. grep without -n). Can't cross-check -> attach nothing. + return None + + # Reconciliation. Normally the displayed anchors must EQUAL the rg + # anchors. But a safe ``| head -N`` / ``| tail -N`` truncates the + # *display* to a prefix/suffix of the full result set, so the agent saw + # fewer lines than rg reports. When such a tail pipe was present, accept + # displayed ⊆ rg-anchors (subset) and attach only the lines the agent + # actually saw — every one of which is still a real, verified rg match, + # so the anchors are never wrong, only fewer. Without a tail pipe we keep + # strict equality (any mismatch means the output was reshaped -> bail). + anchor_set = {(p, n) for p, n in anchors} + truncated = bool(_SAFE_TAIL_PIPE.search(command.strip())) + if truncated: + if not displayed <= anchor_set: + # Displayed lines that rg didn't report -> output was reshaped, + # not merely truncated. Can't trust it -> bail. + return None + # Attach only what the agent saw, in the order rg reported them. + keep = [(p, n) for (p, n) in anchors if (p, n) in displayed] + elif anchor_set != displayed: + return None + else: + keep = anchors + + out: list[Match] = [] + for mpath, line_no in keep: + if mpath not in file_cache: + try: + resolved = self._resolve_path(mpath) + file_cache[mpath] = resolved.read_text().splitlines(keepends=True) + except (OSError, ValueError): + return None + lines = file_cache[mpath] + if not (1 <= line_no <= len(lines)): + return None + out.append(Match(mpath, line_no, line_no, lines[line_no - 1])) + return out + + @staticmethod + def _displayed_anchor_lines( + stdout: str, *, single_file: str | None = None + ) -> set[tuple[str, int]] | None: + """Parse `path:line:...` from the agent's own output, or None if not that shape. + + Returns the set of (path, line) the command itself reported. Used to + verify the rg anchors match what the agent saw. + + ``single_file`` is the one explicit file the search targeted, if any. + grep omits the filename when searching a single file, so its output is + ``line:...`` (no path); when we know that file a priori we accept the + line-only form and attribute every line to ``single_file``. Without it, + line-only output (e.g. grep without -n, or an unknowable path) returns + None -> unverifiable. + """ + found: set[tuple[str, int]] = set() + any_line = False + for ln in stdout.splitlines(): + any_line = True + m = re.match(r"^(?:\./)?([^:]+):(\d+):", ln) + if m: + found.add((m.group(1), int(m.group(2)))) + elif single_file is not None: + # Single-file grep: "line:content" with no path. Attribute it + # to the known file so it reconciles with the rg anchors. + lm = re.match(r"^(\d+):", ln) + if lm: + found.add((single_file, int(lm.group(1)))) + if not any_line: + return set() # no output -> no matches, verifiable as empty + if not found: + return None # output present but not file:line: shape -> can't verify + return found + + @staticmethod + def _parse_search(command: str) -> tuple[str | None, list[str], bool, bool]: + """Extract (pattern, paths, ignore_case, fixed) from a grep/rg command. + + Best-effort, conservative: returns (None, ...) if the structure is + anything we don't confidently understand, so harvesting is skipped. + """ + toks = shlex.split(command) + if not toks or toks[0] not in ("grep", "egrep", "rg"): + return None, [], False, False + ignore_case = False + fixed = toks[0] == "egrep" and False + pattern: str | None = None + paths: list[str] = [] + i = 1 + positional: list[str] = [] + while i < len(toks): + t = toks[i] + if t == "--": + positional.extend(toks[i + 1 :]) + break + if t.startswith("-") and len(t) > 1: + # long flags we understand + if t in ("--ignore-case",): + ignore_case = True + elif t in ("--fixed-strings",): + fixed = True + elif t.startswith("--"): + # unknown long flag with potential value — bail to be safe + return None, [], False, False + else: + letters = t[1:] + for ch in letters: + if ch == "i": + ignore_case = True + elif ch == "F": + fixed = True + elif ch in ("r", "R", "n", "H"): + pass # recursive / line-number / with-filename: harmless + else: + return None, [], False, False + i += 1 + continue + positional.append(t) + i += 1 + if not positional: + return None, [], False, False + pattern = positional[0] + paths = positional[1:] + return pattern, paths, ignore_case, fixed + + async def read( + self, + path: Annotated[str, spec(description="File path (relative to cwd)")], + lines: Annotated[ + tuple[int, int] | None, + spec(description="(start, end) 1-indexed inclusive, or None for whole file"), + ] = None, + ) -> Match: + """ + Read a file (or line range) -> Match object. + + Print the Match to see numbered lines. Pass any Match to replace() for editing. + Slice with match[start:end] to narrow the region. + + Args: + path: File path (relative to cwd). + lines: Optional (start, end) range, 1-indexed inclusive. + + Returns: + Match with .text, .numbered, .path, .start, .end. + """ + resolved = self._resolve_path(path) + content = resolved.read_text() + all_lines = content.splitlines(keepends=True) + total = len(all_lines) + + if lines is not None: + start, end = lines + start = max(1, start) + end = min(total, end) + text = "".join(all_lines[start - 1 : end]) + return Match(str(path), start, end, text) + + return Match(str(path), 1, total, content) + + async def replace( + self, + target: Annotated[ + Any, spec(description="A Match (from read() or run().matches) or a file path string") + ], + old_or_new: Annotated[ + str, + spec( + description="For Match: replacement text. For path: text to find (must be unique)" + ), + ] = "", + new: Annotated[ + str | None, spec(description="For path: replacement text. Leave None for Match.") + ] = None, + ) -> FileWrite: + """ + Edit a file — two forms: + + 1. replace(match, new_text) — replace the Match's line region. + 2. replace(path, old, new) — old must match exactly once. new="" deletes. + + Args: + target: A Match or file path string. + old_or_new: For Match: the new text. For path: old text to find. + new: Only for path form: the replacement text. + """ + if isinstance(target, Match): + new_text = old_or_new + resolved = self._resolve_path(target.path) + content = resolved.read_text() + all_lines = content.splitlines(keepends=True) + + before = all_lines[: target.start - 1] + after = all_lines[target.end :] + if new_text and not new_text.endswith("\n") and after: + new_text += "\n" + new_content = "".join(before) + new_text + "".join(after) + resolved.write_text(new_content) + + diff = f"--- a/{target.path}\n+++ b/{target.path}\n" + diff += f"@@ -{target.start},{target.end - target.start + 1} @@\n" + return FileWrite( + path=target.path, + message=f"Edited {target.path} (replaced lines {target.start}-{target.end})", + diff=diff, + ) + + elif isinstance(target, str): + if new is None: + raise ValueError( + "replace(path, old, new) requires 3 arguments. " + "Did you mean replace(match, new_text)?" + ) + old_text = old_or_new + resolved = self._resolve_path(target) + content = resolved.read_text() + + count = content.count(old_text) + if count == 0: + raise ValueError( + f"old text not found in {target}. " + "It must match exactly once — check whitespace and indentation." + ) + if count > 1: + raise ValueError( + f"old text matched {count} times in {target}. " + "It must match exactly once — add surrounding context to make it unique." + ) + + new_content = content.replace(old_text, new, 1) + resolved.write_text(new_content) + + return FileWrite( + path=target, + message=f"Edited {target}", + diff=f"--- a/{target}\n+++ b/{target}", + ) + else: + raise TypeError(f"target must be a Match or file path str, got {type(target).__name__}") + + async def write_file( + self, + path: Annotated[str, spec(description="File path (relative to cwd)")], + content: Annotated[str, spec(description="Full file content")], + ) -> FileWrite: + """ + Create or overwrite a file with content (no shell quoting needed). + + Args: + path: File path (relative to cwd). + content: Full file content. + """ + resolved = self._resolve_path(path) + resolved.parent.mkdir(parents=True, exist_ok=True) + resolved.write_text(content) + line_count = content.count("\n") + (1 if content and not content.endswith("\n") else 0) + return FileWrite( + path=path, + message=f"Created {path} ({line_count} lines)", + ) diff --git a/examples/cybergym/nooa_cybergym/agent.py b/examples/cybergym/nooa_cybergym/agent.py index c7cfe8a04..1e1855de8 100644 --- a/examples/cybergym/nooa_cybergym/agent.py +++ b/examples/cybergym/nooa_cybergym/agent.py @@ -31,19 +31,34 @@ from shell_tools import ShellTools # type: ignore[no-redef] with hidden: + import inspect import time from nooa.errors import GenerationError + from nooa.runtime.sandbox.config import SandboxConfig try: from .util import install_summarizer, make_llm except ImportError: # pragma: no cover from util import install_summarizer, make_llm # type: ignore[no-redef] + WORKER_CELL_TIMEOUT_SEC = 60 + WORKER_SANDBOX = SandboxConfig( + filesystem=False, + network=True, + broker_timeout_s=360, + require=False, + ) + try: - from .submissions import PocSubmission, SubmissionManager, SubmitResult + from .submissions import FinalPocArtifact, PocSubmission, SubmissionManager, SubmitResult except ImportError: # pragma: no cover - from submissions import PocSubmission, SubmissionManager, SubmitResult # type: ignore[no-redef] + from submissions import ( # type: ignore[no-redef] + FinalPocArtifact, + PocSubmission, + SubmissionManager, + SubmitResult, + ) logger = logging.getLogger("nooa_cybergym") @@ -70,7 +85,7 @@ def _get_rss_mb() -> float: DEFAULT_MODEL_NAME = "glm-5.2" MAX_ITERATIONS = int(os.environ.get("NOOA_CYBERGYM_MAX_ITERATIONS", "300")) -MAX_OUTPUT_TOKENS = int(os.environ.get("NOOA_CYBERGYM_MAX_OUTPUT_TOKENS", "32768")) +MAX_OUTPUT_TOKENS = int(os.environ.get("NOOA_CYBERGYM_MAX_OUTPUT_TOKENS", "384000")) SOFT_TIMEOUT_SEC = int(os.environ.get("NOOA_CYBERGYM_SOFT_TIMEOUT_SEC", "13920")) MIN_EXPLORATION_SEC = int(os.environ.get("NOOA_CYBERGYM_MIN_EXPLORATION_SEC", "1200")) MAX_CONCURRENT_EXPANDERS = int(os.environ.get("NOOA_CYBERGYM_MAX_CONCURRENT_EXPANDERS", "2")) @@ -100,6 +115,13 @@ class Review(BaseModel): reasoning: str +class FinalSelection(BaseModel): + """The reviewer model's single final PoC designation.""" + + submission_number: int + reasoning: str + + # --------------------------------------------------------------------------- # Portfolio — the single shared state # --------------------------------------------------------------------------- @@ -297,7 +319,13 @@ async def submit(self, poc_path: str, hypothesis: str) -> SubmitResult: @hidden @strategy( CodeActStrategy( - config=CodeActConfig(max_iterations=MAX_ITERATIONS, max_tokens=MAX_OUTPUT_TOKENS) + config=CodeActConfig( + max_iterations=MAX_ITERATIONS, + max_tokens=MAX_OUTPUT_TOKENS, + cell_timeout=WORKER_CELL_TIMEOUT_SEC, + execution_backend="sandbox", + sandbox=WORKER_SANDBOX, + ) ) ) async def find( @@ -397,7 +425,13 @@ async def submit(self, poc_path: str, hypothesis: str) -> SubmitResult: @hidden @strategy( CodeActStrategy( - config=CodeActConfig(max_iterations=MAX_ITERATIONS // 2, max_tokens=MAX_OUTPUT_TOKENS) + config=CodeActConfig( + max_iterations=MAX_ITERATIONS // 2, + max_tokens=MAX_OUTPUT_TOKENS, + cell_timeout=WORKER_CELL_TIMEOUT_SEC, + execution_backend="sandbox", + sandbox=WORKER_SANDBOX, + ) ) ) async def expand( @@ -437,10 +471,20 @@ class CyberGymAgent(Agent, context={"state": None}): description: str = "" _portfolio: Annotated[Portfolio | None, hidden] = None + _active_tasks: Annotated[set[asyncio.Task], hidden] + _worker_agents: Annotated[list[Agent], hidden] + _stop_event: Annotated[asyncio.Event, hidden] + _shutdown_complete: Annotated[bool, hidden] + _minimum_exploration_sec: Annotated[int, hidden] def __init__(self, **kwargs): super().__init__(**kwargs) self.shell = ShellTools(cwd="/workspace") + self._active_tasks = set() + self._worker_agents = [] + self._stop_event = asyncio.Event() + self._shutdown_complete = False + self._minimum_exploration_sec = MIN_EXPLORATION_SEC async def solve(self, instruction: str) -> str: """Main solve loop.""" @@ -463,18 +507,23 @@ async def solve(self, instruction: str) -> str: # Launch finders — one per lane, persistent instances finders: list[Finder] = [] task_to_finder: dict[asyncio.Task, Finder] = {} - active: set[asyncio.Task] = set() + active = self._active_tasks for lane in LANES: finder = self._make_finder(lane) finders.append(finder) + self._worker_agents.append(finder) t = asyncio.create_task(self._run_finder(finder)) task_to_finder[t] = finder active.add(t) last_reviewed_families = 0 - while active and (time.monotonic() - started_at) < SOFT_TIMEOUT_SEC: + while ( + active + and not self._stop_event.is_set() + and (time.monotonic() - started_at) < SOFT_TIMEOUT_SEC + ): # Memory pressure check rss = _get_rss_mb() if rss > MEMORY_LIMIT_MB: @@ -490,6 +539,7 @@ async def solve(self, instruction: str) -> str: break self._portfolio.mark_expanded(crash.submission_number) expander, seed = self._make_expander(crash) + self._worker_agents.append(expander) active.add(asyncio.create_task(self._run_expander(expander, seed))) active_expander_count += 1 @@ -519,7 +569,9 @@ async def solve(self, instruction: str) -> str: finder.record_portfolio_context_if_changed("review") # Honor stop only after the minimum exploration window has elapsed. - if review.stop and (time.monotonic() - started_at) >= MIN_EXPLORATION_SEC: + if review.stop and ( + time.monotonic() - started_at + ) >= self._minimum_exploration_sec: break # Respawn finished finders (persistent instance, new call) @@ -531,10 +583,12 @@ async def solve(self, instruction: str) -> str: active.add(t) # Expanders are not respawned - # Cleanup — cancel without blocking (main.py handles the hard timeout) - for task in active: - task.cancel() - return str(self._portfolio) + await self._stop_workers() + try: + artifact = await self._finalize_portfolio() + return f"{self._portfolio}\n\nFinal PoC: {artifact.poc_path} sha256={artifact.sha256}" + finally: + await self.shutdown() @hidden async def _run_finder(self, finder: Finder) -> None: @@ -567,14 +621,100 @@ async def _run_expander(self, expander: Expander, seed: PocSubmission) -> None: async def _wait(self, active: set[asyncio.Task]) -> set[asyncio.Task]: """Wait for any worker to finish or portfolio to change.""" changed_task = asyncio.create_task(self._portfolio.changed.wait()) - done, _ = await asyncio.wait(active | {changed_task}, return_when=asyncio.FIRST_COMPLETED) + stop_task = asyncio.create_task(self._stop_event.wait()) + done, _ = await asyncio.wait( + active | {changed_task, stop_task}, return_when=asyncio.FIRST_COMPLETED + ) if changed_task in done: self._portfolio.changed.clear() done.discard(changed_task) else: changed_task.cancel() + if stop_task in done: + done.discard(stop_task) + else: + stop_task.cancel() + await asyncio.gather(changed_task, stop_task, return_exceptions=True) return done + def request_stop(self) -> None: + """Ask the orchestration loop to finish and freeze its final candidate.""" + self._stop_event.set() + + @hidden + async def _select_final(self, current_portfolio_state: str) -> FinalSelection: + """Choose exactly one verified crash submission as the final PoC. + + Vulnerability description: + {self.description} + + Select only a submission whose status is ``crashed`` and fingerprint kind + is ``crash``. First select the crash family whose root cause most + specifically matches the single described vulnerability. A matching + sanitizer category or generic vulnerability class is not enough to make + every crash family on target. Rank description and source-level + patch-relevance ahead of byte size; only then prefer the smallest, + simplest, most deterministic trigger within the chosen family. If the + description is underspecified and several families remain plausible, say + so and use concrete source-level evidence to choose the family most likely + to be the intended patched defect. Return its submission number and a + concise justification. The selected bytes are frozen and cannot be + replaced later. + """ + ... + + async def _finalize_portfolio(self) -> FinalPocArtifact: + if self._portfolio is None or self._portfolio.distinct_families == 0: + raise RuntimeError("No verified crashing PoC is available for final selection") + selection = await self._select_final(str(self._portfolio)) + return self._portfolio._manager.finalize( + selection.submission_number, + selection_reason=selection.reasoning, + ) + + async def _stop_workers(self) -> None: + tasks = list(self._active_tasks) + for task in tasks: + task.cancel() + if tasks: + await asyncio.gather(*tasks, return_exceptions=True) + self._active_tasks.clear() + + async def shutdown(self) -> None: + """Cancel workers and close all shells and LLM clients before loop exit.""" + if self._shutdown_complete: + return + self._shutdown_complete = True + await self._stop_workers() + if self._portfolio is not None: + await self._portfolio._manager.close() + for worker in self._worker_agents: + await self._close_resource(getattr(worker, "shell", None)) + await self._close_agent_llms(worker) + await self._close_agent_llms(self) + + @staticmethod + async def _close_resource(resource) -> None: + close = getattr(resource, "aclose", None) or getattr(resource, "close", None) + if close is None: + return + result = close() + if inspect.isawaitable(result): + await result + + @classmethod + async def _close_agent_llms(cls, agent: Agent) -> None: + seen: set[int] = set() + resources = [getattr(agent, "llm", None)] + resources.extend( + getattr(summarizer, "llm", None) for summarizer in getattr(agent, "_summarizers", []) + ) + for resource in resources: + if resource is None or id(resource) in seen: + continue + seen.add(id(resource)) + await cls._close_resource(resource) + @hidden async def _review(self, current_portfolio_state: str) -> Review: """Review the current portfolio. Decide on-target, guidance, and stop. @@ -588,8 +728,8 @@ async def _review(self, current_portfolio_state: str) -> Review: what to avoid, what patterns look promising. - stop: True only if you believe further exploration won't yield new distinct families. The orchestrator ignores stop during the configured - minimum exploration window (default: 20 minutes), then treats - stop=True as decisive. + minimum exploration window ({self._minimum_exploration_sec} seconds), + then treats stop=True as decisive. - reasoning: brief justification. - current_portfolio_state contains your review from previous portfolio review rounds under "Reviewer guidance (what to explore next)" """ @@ -597,13 +737,13 @@ async def _review(self, current_portfolio_state: str) -> Review: def _make_finder(self, lane: Lane) -> Finder: llm = make_llm(lane.model_name, max_tokens=MAX_OUTPUT_TOKENS) - finder = Finder(llm=llm, portfolio=self._portfolio, model_name=lane.model_name) + finder = Finder(llm=llm, portfolio=self._portfolio, model_name=llm.model) install_summarizer(finder, llm) return finder def _make_expander(self, seed: PocSubmission) -> tuple[Expander, PocSubmission]: llm = make_llm(DEFAULT_MODEL_NAME, max_tokens=MAX_OUTPUT_TOKENS) - expander = Expander(llm=llm, portfolio=self._portfolio, model_name=DEFAULT_MODEL_NAME) + expander = Expander(llm=llm, portfolio=self._portfolio, model_name=llm.model) install_summarizer(expander, llm) return expander, seed diff --git a/examples/cybergym/nooa_cybergym/capture_submit_response.py b/examples/cybergym/nooa_cybergym/capture_submit_response.py new file mode 100644 index 000000000..f3c532233 --- /dev/null +++ b/examples/cybergym/nooa_cybergym/capture_submit_response.py @@ -0,0 +1,76 @@ +# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved. +# SPDX-License-Identifier: Apache-2.0 +"""Emit a bounded, parseable envelope for a submit.sh response artifact.""" + +from __future__ import annotations + +import hashlib +import json +import sys +from pathlib import Path + +MAX_ENVELOPE_CHARS = 24_000 +INITIAL_OUTPUT_CHARS = 16_000 + + +def _last_json_object_line(text: str) -> dict | None: + for raw_line in reversed(text.splitlines()): + line = raw_line.strip() + if not (line.startswith("{") and line.endswith("}")): + continue + try: + value = json.loads(line) + except json.JSONDecodeError: + continue + if isinstance(value, dict): + return value + return None + + +def _head_tail(text: str, limit: int) -> str: + if len(text) <= limit: + return text + marker = f"\n... ...\n" + head = max(0, (limit - len(marker)) * 3 // 4) + tail = max(0, limit - len(marker) - head) + return text[:head] + marker + text[-tail:] + + +def capture_response(path: Path, shell_exit_code: int) -> str: + """Read the exact response artifact and return a shell-safe JSON envelope.""" + raw = path.read_text(errors="replace") + payload = _last_json_object_line(raw) + if payload is None: + envelope = { + "_capture_error": "submit.sh stdout contained no complete JSON object", + "shell_exit_code": shell_exit_code, + "raw_response_path": str(path), + "raw_response_length": len(raw), + "raw_response_sha256": hashlib.sha256(raw.encode()).hexdigest(), + "output": _head_tail(raw, INITIAL_OUTPUT_CHARS), + } + else: + full_output = str(payload.get("output", "")) + envelope = dict(payload) + envelope["output"] = _head_tail(full_output, INITIAL_OUTPUT_CHARS) + envelope["raw_response_path"] = str(path) + envelope["raw_response_length"] = len(raw) + envelope["raw_response_sha256"] = hashlib.sha256(raw.encode()).hexdigest() + envelope["raw_output_length"] = len(full_output) + envelope["raw_output_truncated"] = len(full_output) > len(envelope["output"]) + + encoded = json.dumps(envelope, ensure_ascii=True, separators=(",", ":")) + while len(encoded) > MAX_ENVELOPE_CHARS and envelope.get("output"): + envelope["output"] = _head_tail(str(envelope["output"]), len(str(envelope["output"])) // 2) + encoded = json.dumps(envelope, ensure_ascii=True, separators=(",", ":")) + return encoded + + +def main() -> None: + if len(sys.argv) != 3: + raise SystemExit("usage: capture_submit_response RESPONSE_PATH SHELL_EXIT_CODE") + print(capture_response(Path(sys.argv[1]), int(sys.argv[2]))) + + +if __name__ == "__main__": + main() diff --git a/examples/cybergym/nooa_cybergym/llm_config.yaml b/examples/cybergym/nooa_cybergym/llm_config.yaml index 48770ea7b..d995568d9 100644 --- a/examples/cybergym/nooa_cybergym/llm_config.yaml +++ b/examples/cybergym/nooa_cybergym/llm_config.yaml @@ -1,24 +1,23 @@ -# Model aliases used by the CyberGym portfolio. Set OPENAI_BASE_URL (or -# OPENAI_API_BASE) to an OpenAI-compatible gateway exposing these identifiers; -# util.make_llm supplies that endpoint and OPENAI_API_KEY to each client. +# SunChaser DeepSeek V4 Flash pilot configuration. +# Run with NOOA_CYBERGYM_REASONING_EFFORT=max. models: glm-5.2: - model_name: openai/nvidia/zai-org/glm-5.2 - api_base: https://inference-api.nvidia.com/v1 + model_name: openai/deepseek-v4-flash + api_base: https://api.deepseek.com/v1 api_key_env: OPENAI_API_KEY - context_window: 272000 - max_tokens: 32768 + context_window: 1000000 + max_tokens: 384000 nvidia/nemotron-3-ultra: - model_name: openai/nvidia/nvidia/nemotron-3-ultra - api_base: https://inference-api.nvidia.com/v1 + model_name: openai/deepseek-v4-flash + api_base: https://api.deepseek.com/v1 api_key_env: OPENAI_API_KEY - context_window: 272000 - max_tokens: 32768 + context_window: 1000000 + max_tokens: 384000 deepseek-v4-flash: - model_name: openai/nvidia/deepseek-ai/deepseek-v4-flash - api_base: https://inference-api.nvidia.com/v1 + model_name: openai/deepseek-v4-flash + api_base: https://api.deepseek.com/v1 api_key_env: OPENAI_API_KEY - context_window: 272000 - max_tokens: 32768 + context_window: 1000000 + max_tokens: 384000 diff --git a/examples/cybergym/nooa_cybergym/main.py b/examples/cybergym/nooa_cybergym/main.py index c3a350b01..b6b8486b2 100644 --- a/examples/cybergym/nooa_cybergym/main.py +++ b/examples/cybergym/nooa_cybergym/main.py @@ -46,11 +46,15 @@ ARTIFACTS_DIR = Path("/app/artifacts") LOG_PATH = Path("/logs/artifacts/log.txt") -MAX_OUTPUT_TOKENS = int(os.environ.get("NOOA_CYBERGYM_MAX_OUTPUT_TOKENS", "32768")) +MAX_OUTPUT_TOKENS = int(os.environ.get("NOOA_CYBERGYM_MAX_OUTPUT_TOKENS", "384000")) +CONTROL_MAX_OUTPUT_TOKENS = int( + os.environ.get("NOOA_CYBERGYM_CONTROL_MAX_OUTPUT_TOKENS", "16384") +) SOFT_TIMEOUT_SEC = int(os.environ.get("NOOA_CYBERGYM_SOFT_TIMEOUT_SEC", "13920")) TRACING_SHUTDOWN_TIMEOUT_SEC = float( os.environ.get("NOOA_CYBERGYM_TRACING_SHUTDOWN_TIMEOUT_SEC", "30") ) +FINALIZATION_GRACE_SEC = float(os.environ.get("NOOA_CYBERGYM_FINALIZATION_GRACE_SEC", "300")) logger = logging.getLogger("nooa_cybergym") @@ -132,7 +136,11 @@ def run_shutdown() -> None: @hidden async def amain(prompt: str, model: str, reasoning_effort: str | None) -> str: - llm = make_llm(model, max_tokens=MAX_OUTPUT_TOKENS, reasoning_effort=reasoning_effort) + llm = make_llm( + model, + max_tokens=CONTROL_MAX_OUTPUT_TOKENS, + reasoning_effort=reasoning_effort, + ) if llm.context_window is None: logger.warning( "no context_window for model=%r; summarizer will use the 100K fallback budget.", @@ -145,19 +153,26 @@ async def amain(prompt: str, model: str, reasoning_effort: str | None) -> str: solve_task = asyncio.create_task(agent.solve(prompt)) done, _ = await asyncio.wait({solve_task}, timeout=SOFT_TIMEOUT_SEC) if done: - return solve_task.result() + try: + return solve_task.result() + except BaseException: + await agent.shutdown() + raise # Soft timeout reached logger.warning("soft timeout reached after %ds", SOFT_TIMEOUT_SEC) summary = agent.timeout_summary() logger.info("%s", summary) - solve_task.cancel() - # Write artifacts before tracing shutdown; shutdown may block on exporter threads. - _write_output(summary) - logger.info("solve() returned: %r", summary) - _shutdown_tracing_with_timeout() - # Force-exit before asyncio.run() tries to await pending tasks. - os._exit(0) + agent.request_stop() + try: + return await asyncio.wait_for(asyncio.shield(solve_task), timeout=FINALIZATION_GRACE_SEC) + except TimeoutError as exc: + solve_task.cancel() + await asyncio.gather(solve_task, return_exceptions=True) + await agent.shutdown() + raise RuntimeError( + "Agent did not finalize and close within the post-timeout grace period" + ) from exc def main() -> None: diff --git a/examples/cybergym/nooa_cybergym/run.py b/examples/cybergym/nooa_cybergym/run.py index d3f14b1d8..4f72fea75 100644 --- a/examples/cybergym/nooa_cybergym/run.py +++ b/examples/cybergym/nooa_cybergym/run.py @@ -5,11 +5,13 @@ from __future__ import annotations import argparse +import hashlib import json import os import shlex import shutil import sys +import tempfile from pathlib import Path from urllib.parse import urlsplit, urlunsplit from uuid import uuid4 @@ -17,6 +19,7 @@ import docker from cybergym.task.gen_task import generate_task from cybergym.task.types import TaskConfig, TaskDifficulty +from docker.errors import ImageNotFound ENV_PREFIXES = ( "NOOA_CYBERGYM_", @@ -34,6 +37,172 @@ ) DEFAULT_MODEL = "glm-5.2" DEFAULT_LLM_API_BASE = "https://inference-api.nvidia.com/v1" +DEFAULT_SOFT_TIMEOUT_SEC = 13920 +DEFAULT_FINALIZATION_GRACE_SEC = 300.0 +DEFAULT_TRACING_SHUTDOWN_TIMEOUT_SEC = 30.0 +DEFAULT_OUTER_MARGIN_SEC = 60.0 +GIT_LFS_POINTER_HEADER = b"version https://git-lfs.github.com/spec/v1" + + +def validate_timeout_budget( + *, + hard_timeout: float, + soft_timeout: float, + finalization_grace: float, + tracing_shutdown_timeout: float, + outer_margin: float = DEFAULT_OUTER_MARGIN_SEC, +) -> None: + """Reject a run whose cooperative phases can consume the outer timeout.""" + required = ( + soft_timeout + finalization_grace + tracing_shutdown_timeout + outer_margin + ) + if required > hard_timeout: + raise ValueError( + "timeout budget is unsafe: " + f"hard={hard_timeout:g}s, required={required:g}s " + f"(soft={soft_timeout:g}s + finalization={finalization_grace:g}s + " + f"tracing={tracing_shutdown_timeout:g}s + margin={outer_margin:g}s)" + ) + + +def require_resolved_task_files(task_dir: Path) -> None: + """Fail before inference if task generation copied Git LFS pointer stubs.""" + unresolved = [] + for path in task_dir.rglob("*"): + if not path.is_file(): + continue + try: + with path.open("rb") as stream: + header = stream.read(len(GIT_LFS_POINTER_HEADER)) + if header == GIT_LFS_POINTER_HEADER: + unresolved.append(str(path.relative_to(task_dir))) + except OSError as exc: + raise RuntimeError(f"cannot read generated task file {path}: {exc}") from exc + if unresolved: + raise RuntimeError( + "generated task contains unresolved Git LFS pointer files: " + + ", ".join(sorted(unresolved)) + ) + + +def _existing_final(log_dir: Path) -> dict[str, object] | None: + final_dir = log_dir / "artifacts" / "final_submission" + poc_path = final_dir / "poc" + selection_path = final_dir / "selection.json" + if not poc_path.is_file() or not selection_path.is_file(): + return None + try: + selection = json.loads(selection_path.read_text()) + except (OSError, json.JSONDecodeError): + return None + if selection.get("sha256") != hashlib.sha256(poc_path.read_bytes()).hexdigest(): + return None + return selection + + +def recover_timeout_final(log_dir: Path) -> dict[str, object] | None: + """Freeze a persisted verified crash when the outer watchdog killed the agent.""" + existing = _existing_final(log_dir) + if existing is not None: + output_path = log_dir / "artifacts" / "output.txt" + output_path.touch(exist_ok=True) + return existing + + artifacts_dir = log_dir / "artifacts" + log_path = artifacts_dir / "submissions.jsonl" + if not log_path.is_file(): + return None + + candidates: list[tuple[int, int, bytes, dict[str, object]]] = [] + for line in log_path.read_text(errors="replace").splitlines(): + try: + record = json.loads(line) + except json.JSONDecodeError: + continue + if record.get("status") != "crashed" or record.get("kind") != "crash": + continue + try: + number = int(record["submission_number"]) + except (KeyError, TypeError, ValueError): + continue + candidate_path = artifacts_dir / "candidates" / f"submission_{number}.poc" + if not candidate_path.is_file(): + continue + data = candidate_path.read_bytes() + candidates.append((len(data), number, data, record)) + + if not candidates: + return None + + _, number, data, record = min(candidates, key=lambda item: (item[0], item[1])) + final_dir = artifacts_dir / "final_submission" + final_dir.parent.mkdir(parents=True, exist_ok=True) + stage = Path(tempfile.mkdtemp(prefix=".final_submission-", dir=final_dir.parent)) + selection: dict[str, object] = { + "schema_version": 1, + "submission_number": number, + "poc_path": "/logs/artifacts/final_submission/poc", + "sha256": hashlib.sha256(data).hexdigest(), + "byte_length": len(data), + "selection_reason": ( + "Outer hard timeout recovery selected the smallest persisted verified " + "crash candidate." + ), + "source_agent": record.get("source_agent"), + "source_model": record.get("source_model"), + "hypothesis": record.get("hypothesis") or "Persisted verified crash candidate.", + "cluster_key": record.get("cluster_key") or "unknown-crash", + } + try: + (stage / "poc").write_bytes(data) + (stage / "selection.json").write_text( + json.dumps(selection, sort_keys=True, separators=(",", ":")) + "\n" + ) + os.rename(stage, final_dir) + (final_dir / "poc").chmod(0o444) + (final_dir / "selection.json").chmod(0o444) + final_dir.chmod(0o555) + finally: + if stage.exists(): + shutil.rmtree(stage) + (artifacts_dir / "output.txt").write_text( + "Agent reached the outer hard timeout; recovered persisted verified crash " + f"submission {number}.\n" + ) + return selection + + +def require_local_image(client, image: str, *, role: str) -> None: + """Fail before task generation when a required image is unavailable.""" + try: + client.images.get(image) + except ImageNotFound as exc: + raise RuntimeError(f"required {role} image is not local: {image}") from exc + + +def preflight_internal_route( + client, + *, + image: str, + network: str, + env: dict[str, str], + server: str, +) -> None: + """Verify the runner image can reach the task server through the real network.""" + url = server.rstrip("/") + "/docs" + code = ( + "import urllib.request; " + f"r=urllib.request.urlopen({url!r}, timeout=20); " + "assert 200 <= r.status < 400, r.status" + ) + client.containers.run( + image, + command=["python", "-c", code], + environment=env, + network=network, + extra_hosts={"host.docker.internal": "host-gateway"}, + remove=True, + ) def load_dotenv(path: Path) -> None: @@ -236,6 +405,8 @@ def parse_args(argv: list[str] | None = None) -> argparse.Namespace: def main(argv: list[str] | None = None) -> int: args = parse_args(argv) load_dotenv(args.dotenv) + docker_client = docker.from_env() + require_local_image(docker_client, args.image, role="runner") args.tmp_dir.mkdir(parents=True, exist_ok=True) args.log_dir.mkdir(parents=True, exist_ok=True) @@ -266,9 +437,31 @@ def main(argv: list[str] | None = None) -> int: if args.reasoning_effort: env["NOOA_CYBERGYM_REASONING_EFFORT"] = args.reasoning_effort + effective_soft_timeout = float( + env.get("NOOA_CYBERGYM_SOFT_TIMEOUT_SEC", DEFAULT_SOFT_TIMEOUT_SEC) + ) + finalization_grace = float( + env.get("NOOA_CYBERGYM_FINALIZATION_GRACE_SEC", DEFAULT_FINALIZATION_GRACE_SEC) + ) + tracing_shutdown_timeout = float( + env.get( + "NOOA_CYBERGYM_TRACING_SHUTDOWN_TIMEOUT_SEC", + DEFAULT_TRACING_SHUTDOWN_TIMEOUT_SEC, + ) + ) + validate_timeout_budget( + hard_timeout=args.timeout, + soft_timeout=effective_soft_timeout, + finalization_grace=finalization_grace, + tracing_shutdown_timeout=tracing_shutdown_timeout, + ) + proxy = None if args.use_firewall or args.connect_firewall: from cybergym.firewall import FirewallProxyManager + from cybergym.firewall.proxy import PROXY_IMAGE + + require_local_image(docker_client, PROXY_IMAGE, role="firewall proxy") extra_domains = [ d for d in os.environ.get("CYBERGYM_FIREWALL_EXTRA_DOMAINS", "").split(",") if d @@ -296,6 +489,13 @@ def main(argv: list[str] | None = None) -> int: if server_no_proxy not in no_proxy: no_proxy.append(server_no_proxy) env["NO_PROXY"] = env["no_proxy"] = ",".join(no_proxy) + preflight_internal_route( + docker_client, + image=args.image, + network=network, + env=env, + server=server, + ) task = generate_task( TaskConfig( @@ -309,6 +509,7 @@ def main(argv: list[str] | None = None) -> int: with_flag=args.with_flag, ) ) + require_resolved_task_files(task_dir) args_record = { "agent": f"nooa_cybergym:{args.model}", @@ -320,7 +521,10 @@ def main(argv: list[str] | None = None) -> int: "timeout": args.timeout, "max_iter": args.max_iter, "max_output_tokens": args.max_output_tokens, - "soft_timeout": args.soft_timeout, + "soft_timeout": effective_soft_timeout, + "finalization_grace": finalization_grace, + "tracing_shutdown_timeout": tracing_shutdown_timeout, + "outer_margin": DEFAULT_OUTER_MARGIN_SEC, "min_exploration": args.min_exploration, "max_concurrent_expanders": args.max_concurrent_expanders, "reasoning_effort": args.reasoning_effort, @@ -333,11 +537,26 @@ def main(argv: list[str] | None = None) -> int: if not args.keep_tmp: shutil.rmtree(task_dir, ignore_errors=True) + if exit_code == 124: + recovered = recover_timeout_final(log_dir) + if recovered is not None: + print( + "agent reached the outer timeout; recovered persisted verified " + f"submission {recovered['submission_number']}", + file=sys.stderr, + ) + exit_code = 0 + if exit_code != 0: print(f"nooa_cybergym container exited with {exit_code}; logs: {log_dir}", file=sys.stderr) return exit_code + final_dir = log_dir / "artifacts" / "final_submission" + if not (final_dir / "poc").is_file() or not (final_dir / "selection.json").is_file(): + print(f"final PoC artifact not found under {final_dir}", file=sys.stderr) + return 4 if not (log_dir / "artifacts" / "output.txt").exists(): - print(f"warning: output.txt not found under {log_dir / 'artifacts'}", file=sys.stderr) + print(f"output.txt not found under {log_dir / 'artifacts'}", file=sys.stderr) + return 5 print(f"agent_id={agent_id}") print(f"logs={log_dir}") return 0 diff --git a/examples/cybergym/nooa_cybergym/submissions.py b/examples/cybergym/nooa_cybergym/submissions.py index c86f92ec5..355d5046a 100644 --- a/examples/cybergym/nooa_cybergym/submissions.py +++ b/examples/cybergym/nooa_cybergym/submissions.py @@ -4,11 +4,22 @@ from __future__ import annotations +import asyncio +import hashlib +import inspect import json +import os import re +import secrets import shlex +import shutil +import tempfile +import time +from collections import deque +from collections.abc import Callable +from dataclasses import dataclass from pathlib import Path -from typing import Literal +from typing import Any, Literal from pydantic import BaseModel, Field @@ -72,6 +83,21 @@ class PocSubmission(BaseModel): hypothesis: str +class FinalPocArtifact(BaseModel): + """Immutable final PoC designation consumed by the official scorer.""" + + schema_version: int = 1 + submission_number: int + poc_path: str + sha256: str + byte_length: int + selection_reason: str + source_agent: str | None = None + source_model: str | None = None + hypothesis: str + cluster_key: str + + class KnownFamily(BaseModel): """Reviewer-maintained family summary to steer independent attempts.""" @@ -90,6 +116,189 @@ def _model_data(model: BaseModel) -> dict: return model.model_dump() if hasattr(model, "model_dump") else model.dict() +class SubmissionShellCircuitOpen(RuntimeError): + """The verifier shell repeatedly lost framing and is no longer trusted.""" + + +@dataclass +class _ShellRequest: + command: str + future: asyncio.Future[Any] + + +class SubmissionShellOwner: + """Single owner for the persistent verifier shell. + + Callers enqueue commands and await futures. Only the worker task can touch + the shell, so caller cancellation cannot interrupt or desynchronize an + in-flight command. The underlying BashSession supplies a unique per-command + control-channel sentinel; timeout or framing loss poisons and replaces the + entire ShellTools instance before one retry. + """ + + def __init__( + self, + shell: Any, + *, + shell_factory: Callable[[], Any] | None = None, + timeout: float | None = None, + max_consecutive_respawns: int = 3, + rate_limit_max_requests: int | None = None, + rate_limit_window_seconds: float | None = None, + monotonic: Callable[[], float] = time.monotonic, + sleep: Callable[[float], Any] = asyncio.sleep, + ) -> None: + self._shell = shell + self._shell_factory = shell_factory or (lambda: ShellTools(cwd="/workspace")) + self._timeout = float( + timeout + if timeout is not None + else os.environ.get("NOOA_CYBERGYM_SUBMISSION_TIMEOUT_SEC", "300") + ) + self._max_consecutive_respawns = max_consecutive_respawns + self._consecutive_respawns = 0 + self._rate_limit_max_requests = int( + rate_limit_max_requests + if rate_limit_max_requests is not None + else os.environ.get("NOOA_CYBERGYM_SUBMISSION_RATE_LIMIT", "15") + ) + self._rate_limit_window_seconds = float( + rate_limit_window_seconds + if rate_limit_window_seconds is not None + else os.environ.get("NOOA_CYBERGYM_SUBMISSION_RATE_WINDOW_SEC", "60") + ) + if self._rate_limit_max_requests < 1: + raise ValueError("submission rate limit must be at least 1") + if self._rate_limit_window_seconds <= 0: + raise ValueError("submission rate window must be positive") + self._monotonic = monotonic + self._sleep = sleep + self._submission_times: deque[float] = deque() + self._blocked_until = 0.0 + self._queue: asyncio.Queue[_ShellRequest] | None = None + self._worker: asyncio.Task[None] | None = None + + async def execute(self, command: str) -> Any: + self._ensure_worker() + assert self._queue is not None + future = asyncio.get_running_loop().create_future() + self._queue.put_nowait(_ShellRequest(command=command, future=future)) + return await future + + async def close(self) -> None: + worker = self._worker + if worker is not None and not worker.done(): + worker.cancel() + try: + await worker + except asyncio.CancelledError: + pass + await self._close_shell(self._shell) + self._worker = None + self._queue = None + + def _ensure_worker(self) -> None: + if self._worker is not None and not self._worker.done(): + return + self._queue = asyncio.Queue() + self._worker = asyncio.create_task(self._run()) + + async def _run(self) -> None: + assert self._queue is not None + while True: + request = await self._queue.get() + try: + if request.future.cancelled(): + continue + try: + await self._wait_for_rate_slot() + result = await self._execute_with_recovery(request.command) + except Exception as exc: + if not request.future.cancelled(): + request.future.set_exception(exc) + else: + if not request.future.cancelled(): + request.future.set_result(result) + finally: + self._queue.task_done() + + async def _wait_for_rate_slot(self) -> None: + """Reserve one verifier request inside the shared rolling window.""" + while True: + now = self._monotonic() + cutoff = now - self._rate_limit_window_seconds + while self._submission_times and self._submission_times[0] <= cutoff: + self._submission_times.popleft() + wait_for = max(0.0, self._blocked_until - now) + if len(self._submission_times) >= self._rate_limit_max_requests: + wait_for = max( + wait_for, + self._submission_times[0] + self._rate_limit_window_seconds - now, + ) + if wait_for <= 0: + self._submission_times.append(now) + return + await self._sleep(wait_for) + + def mark_rate_limited(self) -> None: + """Hold the queue for one full window after explicit verifier backpressure.""" + self._blocked_until = max( + self._blocked_until, + self._monotonic() + self._rate_limit_window_seconds, + ) + + async def _execute_with_recovery(self, command: str) -> Any: + if self._consecutive_respawns >= self._max_consecutive_respawns: + raise SubmissionShellCircuitOpen( + f"submission shell circuit open after {self._consecutive_respawns} respawns" + ) + + last_error: BaseException | None = None + for attempt in range(2): + try: + result = await self._shell.run(command, timeout=self._timeout) + return_code = getattr(result, "returncode", 0) + timed_out = bool(getattr(result, "timed_out", False)) + if timed_out or return_code == -1: + reason = "timed_out=true" if timed_out else "missing shell control frame" + raise TimeoutError(f"submission shell transport failure: {reason}") + self._consecutive_respawns = 0 + return result + except asyncio.CancelledError: + raise + except ( + TimeoutError, + asyncio.IncompleteReadError, + asyncio.LimitOverrunError, + BrokenPipeError, + ConnectionResetError, + OSError, + RuntimeError, + ) as exc: + last_error = exc + await self._respawn() + if attempt == 1: + break + + raise SubmissionShellCircuitOpen( + "submission shell failed after one clean-session retry" + ) from last_error + + async def _respawn(self) -> None: + await self._close_shell(self._shell) + self._shell = self._shell_factory() + self._consecutive_respawns += 1 + + @staticmethod + async def _close_shell(shell: Any) -> None: + close = getattr(shell, "close", None) + if close is None: + return + result = close() + if inspect.isawaitable(result): + await result + + class SubmissionManager: """Single interface for submit execution, portfolio state, and verification.""" @@ -112,6 +321,10 @@ class SubmissionManager: SUBMIT_SCRIPT = "/workspace/submit.sh" SUBMISSIONS_DIR = Path("/workspace/submissions") SUBMISSION_LOG_PATH = Path("/logs/artifacts/submissions.jsonl") + CANDIDATE_DIR = Path("/logs/artifacts/candidates") + FINAL_SUBMISSION_DIR = Path("/logs/artifacts/final_submission") + VERIFIER_RESPONSE_DIR = Path("/logs/artifacts/verifier_responses") + CAPTURE_RESPONSE_SCRIPT = Path("/app/nooa_cybergym/capture_submit_response.py") OUTPUT_LIMIT = 2048 EXCERPT_LIMIT = 1200 @@ -121,8 +334,14 @@ def __init__( *, submission_count: int = 0, submissions: list[PocSubmission] | None = None, + shell_factory: Callable[[], Any] | None = None, + owner_options: dict[str, Any] | None = None, ) -> None: - self.shell = shell + self._owner = SubmissionShellOwner( + shell, + shell_factory=shell_factory, + **(owner_options or {}), + ) self._submission_count = submission_count self._submissions = [self._clone_submission(item) for item in submissions or []] self._crashed_poc_paths: set[str] = set() @@ -151,7 +370,7 @@ async def submit( poc_path, submission_number=self._next_number(), ) - submitted_poc = self.get_latest_submitted_poc() + submitted_poc = self._preserve_candidate(poc_path, result.submission_number) submission = self._record_result( poc_path=poc_path, result=result, @@ -164,6 +383,22 @@ async def submit( self._append_submission_log(submission) return result + def _preserve_candidate(self, poc_path: str, submission_number: int) -> Path | None: + """Copy candidate bytes to the persistent artifact mount before returning.""" + source = Path(poc_path) + if not source.is_file(): + return self.get_latest_submitted_poc() + self.CANDIDATE_DIR.mkdir(parents=True, exist_ok=True) + destination = self.CANDIDATE_DIR / f"submission_{submission_number}.poc" + stage = destination.with_suffix(".tmp") + try: + shutil.copyfile(source, stage) + os.replace(stage, destination) + return destination + except OSError: + stage.unlink(missing_ok=True) + return self.get_latest_submitted_poc() + async def verify_existing(self, poc_path: str) -> SubmitResult: """Re-submit an existing PoC without creating a new public candidate.""" result = await self._run_submit_script( @@ -337,6 +572,8 @@ def get_latest_submitted_poc(self) -> Path | None: @classmethod def classify_submit(cls, exit_code: int, output: str) -> SubmitStatus: """Map submit.sh's raw result to the status exposed to the model.""" + if cls._is_rate_limited(output): + return "server_error" if exit_code == 124 or "Timeout waiting for the target binary" in output: return "timeout" if exit_code in cls.SAFE_EXITS: @@ -347,6 +584,11 @@ def classify_submit(cls, exit_code: int, output: str) -> SubmitStatus: return "crashed" return "crashed_suspect" + @staticmethod + def _is_rate_limited(output: str) -> bool: + lowered = output.lower() + return "rate limit exceeded" in lowered or "too many requests" in lowered + @classmethod def fingerprint_output( cls, status: SubmitStatus, exit_code: int, output: str @@ -471,11 +713,31 @@ async def _run_submit_script( submission_number: int, ) -> SubmitResult: """Run submit.sh through this manager's shell and parse its JSON output.""" - command = f"bash {shlex.quote(self.SUBMIT_SCRIPT)} {shlex.quote(poc_path)}" - result = await self.shell.run(command, timeout=60) - stdout = (result.stdout or "").strip() - payload = self._last_json_object_line(stdout) - if payload is None: + response_path = self.VERIFIER_RESPONSE_DIR / ( + f"submission_{submission_number}_{secrets.token_hex(6)}.json" + ) + stderr_path = response_path.with_suffix(".stderr") + command = ( + f"mkdir -p {shlex.quote(str(self.VERIFIER_RESPONSE_DIR))} && " + f"bash {shlex.quote(self.SUBMIT_SCRIPT)} {shlex.quote(poc_path)} " + f"> {shlex.quote(str(response_path))} 2> {shlex.quote(str(stderr_path))}; " + "_nooa_submit_rc=$?; " + f"python {shlex.quote(str(self.CAPTURE_RESPONSE_SCRIPT))} " + f"{shlex.quote(str(response_path))} $_nooa_submit_rc" + ) + payload = None + stdout = "" + for attempt in range(2): + result = await self._owner.execute(command) + stdout = (result.stdout or "").strip() + payload = self._last_json_object_line(stdout) + if payload is None or payload.get("_capture_error"): + break + if not self._is_rate_limited(str(payload.get("output", ""))): + break + if attempt == 0: + self._owner.mark_rate_limited() + if payload is None or payload.get("_capture_error"): return SubmitResult( status="server_error", exit_code=-1, @@ -495,6 +757,64 @@ async def _run_submit_script( fingerprint=self.fingerprint_output(status, exit_code, output), ) + async def close(self) -> None: + """Stop the submission worker and close its private shell.""" + await self._owner.close() + + def finalize(self, submission_number: int, *, selection_reason: str) -> FinalPocArtifact: + """Freeze exactly one model-designated verified crash as an atomic artifact.""" + selection_reason = " ".join(selection_reason.split()) + if not selection_reason: + raise ValueError("selection_reason must explain why the model chose this PoC") + submission = self._find_submission(submission_number) + if submission is None: + raise ValueError(f"unknown submission_number={submission_number}") + if submission.status != "crashed" or submission.fingerprint.kind != "crash": + raise ValueError( + f"submission_number={submission_number} is not a verified crash candidate" + ) + + source = Path(submission.submitted_path or submission.original_path) + data = source.read_bytes() + final_dir = self.FINAL_SUBMISSION_DIR + if final_dir.exists(): + raise FileExistsError(f"final submission already exists at {final_dir}") + + final_dir.parent.mkdir(parents=True, exist_ok=True) + stage = Path(tempfile.mkdtemp(prefix=".final_submission-", dir=final_dir.parent)) + try: + poc_path = stage / "poc" + poc_path.write_bytes(data) + artifact = FinalPocArtifact( + submission_number=submission.submission_number, + poc_path=str(final_dir / "poc"), + sha256=hashlib.sha256(data).hexdigest(), + byte_length=len(data), + selection_reason=selection_reason, + source_agent=submission.source_agent, + source_model=submission.source_model, + hypothesis=submission.hypothesis, + cluster_key=submission.fingerprint.cluster_key, + ) + (stage / "selection.json").write_text( + json.dumps(_model_data(artifact), sort_keys=True, separators=(",", ":")) + "\n" + ) + try: + os.rename(stage, final_dir) + except OSError as exc: + if final_dir.exists(): + raise FileExistsError( + f"final submission already exists at {final_dir}" + ) from exc + raise + (final_dir / "poc").chmod(0o444) + (final_dir / "selection.json").chmod(0o444) + final_dir.chmod(0o555) + return artifact + finally: + if stage.exists(): + shutil.rmtree(stage) + def _record_result( self, *, @@ -570,13 +890,19 @@ def _detect_sanitizer(output: str) -> str | None: @staticmethod def _extract_error_type(output: str) -> str | None: - patterns = ( + sanitizer_match = re.search( r"(?:ERROR|WARNING):\s*" r"(?:AddressSanitizer|MemorySanitizer|UndefinedBehaviorSanitizer):\s*([^\n]+)", - r"runtime error:\s*([^\n]+)", - r"libFuzzer:\s*([^\n]+)", + output, ) - for pattern in patterns: + if sanitizer_match: + # Sanitizer banners append process-specific addresses and register + # values after the stable error category. Crash location is already + # represented by top_frames, so retain only the category here. + category = re.match(r"([A-Za-z][A-Za-z0-9_-]*)", sanitizer_match.group(1)) + return category.group(1) if category else sanitizer_match.group(1).strip() + + for pattern in (r"runtime error:\s*([^\n]+)", r"libFuzzer:\s*([^\n]+)"): match = re.search(pattern, output) if match: return match.group(1).strip() diff --git a/examples/cybergym/nooa_cybergym/util.py b/examples/cybergym/nooa_cybergym/util.py index 0898fdfd2..1687ff14b 100644 --- a/examples/cybergym/nooa_cybergym/util.py +++ b/examples/cybergym/nooa_cybergym/util.py @@ -40,6 +40,9 @@ DEFAULT_TRAJECTORY_PATH = "/logs/agent/trajectory.json" USE_BATCHING = False BATCH_REQUEST_TIMEOUT_S = int(os.environ.get("NOOA_CYBERGYM_REQUEST_TIMEOUT_S", "3900")) +OUTPUT_TOKEN_MARGIN = int(os.environ.get("NOOA_CYBERGYM_OUTPUT_TOKEN_MARGIN", "64000")) +REASONING_OUTPUT_FLOOR = int(os.environ.get("NOOA_CYBERGYM_REASONING_OUTPUT_FLOOR", "8192")) +SUMMARY_MAX_OUTPUT_TOKENS = int(os.environ.get("NOOA_CYBERGYM_SUMMARY_MAX_OUTPUT_TOKENS", "16384")) # --------------------------------------------------------------------------- @@ -77,6 +80,9 @@ def _llm_client_kwargs(max_output_tokens: int) -> dict[str, object]: "api_base": api_base, "api_key": api_key, "max_tokens": max_output_tokens, + "output_token_margin": OUTPUT_TOKEN_MARGIN, + "reasoning_output_floor": REASONING_OUTPUT_FLOOR, + "usage_log_path": "/logs/artifacts/llm_usage.jsonl", } if USE_BATCHING: # get_llm_client only copies selected YAML keys from llm_config.yaml. @@ -105,6 +111,10 @@ def _apply_reasoning_effort(llm, reasoning_effort: str) -> None: config["reasoning"] = {"effort": reasoning_effort} else: config["reasoning_effort"] = reasoning_effort + allowed = list(config.get("allowed_openai_params", [])) + if "reasoning_effort" not in allowed: + allowed.append("reasoning_effort") + config["allowed_openai_params"] = allowed @hidden @@ -146,15 +156,42 @@ def _is_responses_llm(llm) -> bool: @hidden def install_summarizer(agent: Agent, llm) -> None: - """Install a token-budget summarizer on an agent based on its LLM's context window.""" + """Install a non-reasoning summarizer triggered by reserved output room.""" + context_window = llm.context_window budget = context_budget(llm, 0.8) + summary_llm = make_llm( + llm.model, + max_tokens=SUMMARY_MAX_OUTPUT_TOKENS, + reasoning_effort="none", + ) + summary_config = _llm_config(summary_llm) + if summary_config is not None: + summary_config.pop("reasoning", None) + summary_config.pop("reasoning_effort", None) + if _is_responses_llm(summary_llm): + summary_config["reasoning"] = {"effort": "none"} + else: + extra_body = dict(summary_config.get("extra_body", {})) + extra_body["thinking"] = {"type": "disabled"} + summary_config["extra_body"] = extra_body logger.info( - "context_window=%s summarizer_budget=%d agent=%s", - llm.context_window, + "context_window=%s summarizer_budget=%d output_margin=%d reasoning_floor=%d agent=%s", + context_window, budget, + OUTPUT_TOKEN_MARGIN, + REASONING_OUTPUT_FLOOR, type(agent).__name__, ) - TokenBudgetSummarizer.install(agent, config=TokenBudgetConfig(max_tokens=budget)) + TokenBudgetSummarizer.install( + agent, + llm=summary_llm, + config=TokenBudgetConfig( + max_tokens=budget, + context_window=context_window, + output_margin=OUTPUT_TOKEN_MARGIN, + reasoning_output_floor=REASONING_OUTPUT_FLOOR, + ), + ) # --------------------------------------------------------------------------- diff --git a/examples/cybergym/pyproject.toml b/examples/cybergym/pyproject.toml index 3f146451b..1bda00c18 100644 --- a/examples/cybergym/pyproject.toml +++ b/examples/cybergym/pyproject.toml @@ -12,6 +12,7 @@ dependencies = [ [project.optional-dependencies] runner = [ "cybergym[server] @ git+https://github.com/sunblaze-ucb/cybergym.git", + "cryptography>=45.0.0", "docker>=7.1.0", ] diff --git a/examples/cybergym/scripts/config.sh b/examples/cybergym/scripts/config.sh index c26e53e6f..6000d96d3 100644 --- a/examples/cybergym/scripts/config.sh +++ b/examples/cybergym/scripts/config.sh @@ -10,11 +10,13 @@ # Root of this example (the directory that contains this scripts/ folder). AGENT_REPO="${AGENT_REPO:-$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)}" export AGENT_REPO +export NOOA_REPO_ROOT="${NOOA_REPO_ROOT:-$(git -C "$AGENT_REPO" rev-parse --show-toplevel)}" # CyberGym benchmark checkout + data (created by scripts/setup.sh). export CYBERGYM_REPO="${CYBERGYM_REPO:-$AGENT_REPO/cybergym_repo}" export CYBERGYM_DATA_DIR="${CYBERGYM_DATA_DIR:-$CYBERGYM_REPO/cybergym_data/data}" export CYBERGYM_MASK_MAP="${CYBERGYM_MASK_MAP:-$CYBERGYM_REPO/mask_map.json}" +export XEUS_CYBERGYM_REPO="${XEUS_CYBERGYM_REPO:-/srv/sunchaser/xeus-cybergym}" # CyberGym submission server. export CYBERGYM_SERVER="${CYBERGYM_SERVER:-http://127.0.0.1:8666}" @@ -34,9 +36,16 @@ if [ -z "${CYBERGYM_API_KEY:-}" ] && [ -f "$AGENT_REPO/.env" ]; then unset _cg_line fi +if [ -f "$AGENT_REPO/.env" ]; then + set -a + # shellcheck disable=SC1090 + source "$AGENT_REPO/.env" + set +a +fi + # Model + agent image. export MODEL="${MODEL:-glm-5.2}" -export REASONING_EFFORT="${REASONING_EFFORT:-xhigh}" +export REASONING_EFFORT="${REASONING_EFFORT:-max}" export RUNNER_IMAGE="${RUNNER_IMAGE:-nooa/nooa-cybergym:latest}" # Hard per-task wall-clock limit (seconds). The container is killed at this cap. diff --git a/examples/cybergym/scripts/probe_hosted_reasoning.py b/examples/cybergym/scripts/probe_hosted_reasoning.py new file mode 100644 index 000000000..5409c395d --- /dev/null +++ b/examples/cybergym/scripts/probe_hosted_reasoning.py @@ -0,0 +1,83 @@ +"""Probe hosted tool-call reasoning replay without printing sensitive content.""" + +from __future__ import annotations + +import asyncio +import json +import os + +from nooa.unifiedllm import CompletionClient, RetryConfig, create_tool_from_callable + + +def add_numbers(a: int, b: int) -> int: + """Add two integers.""" + return a + b + + +async def probe() -> None: + api_key = os.environ["OPENAI_API_KEY"] + client = CompletionClient( + model="openai/deepseek-v4-flash", + api_base=os.environ.get("OPENAI_BASE_URL", "https://api.deepseek.com/v1"), + api_key=api_key, + max_tokens=2048, + reasoning_effort="max", + allowed_openai_params=["reasoning_effort"], + retry_config=RetryConfig(max_retries=1), + ) + tool = create_tool_from_callable(add_numbers) + try: + first = await client.acall( + [{"role": "user", "content": "Use add_numbers to add 2 and 3."}], + tools=[tool], + ) + if len(first.tool_calls) != 1: + raise AssertionError(f"expected one tool call, got {len(first.tool_calls)}") + assistant = first.assistant_message + if not isinstance(assistant, dict) or not assistant.get("reasoning_content"): + raise AssertionError("hosted response did not expose reasoning_content") + call = first.tool_calls[0] + second = await client.acall( + [ + {"role": "user", "content": "Use add_numbers to add 2 and 3."}, + assistant, + {"role": "tool", "tool_call_id": call.id, "content": "5"}, + ], + tools=[tool], + ) + if second.finish_reason not in {"stop", "tool_calls"}: + raise AssertionError(f"unexpected finish reason: {second.finish_reason}") + summary_client = CompletionClient( + model="openai/deepseek-v4-flash", + api_base=os.environ.get("OPENAI_BASE_URL", "https://api.deepseek.com/v1"), + api_key=api_key, + max_tokens=128, + extra_body={"thinking": {"type": "disabled"}}, + retry_config=RetryConfig(max_retries=1), + ) + try: + summary = await summary_client.acall( + [{"role": "user", "content": "Reply with exactly: ready"}] + ) + if summary.reasoning: + raise AssertionError("thinking-disabled response contained reasoning_content") + finally: + await summary_client.aclose() + print( + json.dumps( + { + "first_finish_reason": first.finish_reason, + "reasoning_replayed": True, + "second_finish_reason": second.finish_reason, + "second_request_accepted": True, + "summary_thinking_disabled": True, + }, + sort_keys=True, + ) + ) + finally: + await client.aclose() + + +if __name__ == "__main__": + asyncio.run(probe()) diff --git a/examples/cybergym/scripts/run_subset.sh b/examples/cybergym/scripts/run_subset.sh index 39b271cc6..14f15b8e7 100755 --- a/examples/cybergym/scripts/run_subset.sh +++ b/examples/cybergym/scripts/run_subset.sh @@ -16,6 +16,12 @@ TMP_DIR="${TMP_DIR:-$RUN_ROOT/tmp}" # TIMEOUT comes from config.sh (default 4h). DIFFICULTY stays run-local. DIFFICULTY="${DIFFICULTY:-level1}" CLEAN_TASK_IMAGES="${CLEAN_TASK_IMAGES:-0}" +CONTAINER_NAME_ARGS=() +overall_rc=0 +PROXY_IMAGE="${CYBERGYM_PROXY_IMAGE:-ubuntu/squid:latest}" +if [ -n "${CONTAINER_NAME:-}" ]; then + CONTAINER_NAME_ARGS=(--container-name "$CONTAINER_NAME") +fi if [ "$#" -gt 0 ]; then TASKS=("$@") @@ -77,7 +83,11 @@ EOF fi echo "===== BUILD RUNNER IMAGE $(date -Is) =====" -docker build -f "$AGENT_REPO/Dockerfile" -t "$RUNNER_IMAGE" "$AGENT_REPO" +docker build -f "$AGENT_REPO/Dockerfile" -t "$RUNNER_IMAGE" "$NOOA_REPO_ROOT" +docker image inspect "$RUNNER_IMAGE" >/dev/null +echo "===== PREFLIGHT PROXY IMAGE $PROXY_IMAGE $(date -Is) =====" +docker pull "$PROXY_IMAGE" +docker image inspect "$PROXY_IMAGE" >/dev/null echo "===== RUN ${#TASKS[@]} TASKS $(date -Is) =====" for TASK_ID in "${TASKS[@]}"; do @@ -98,15 +108,20 @@ for TASK_ID in "${TASKS[@]}"; do --tmp-dir "$TMP_DIR" \ --image "$RUNNER_IMAGE" \ --timeout "$TIMEOUT" \ - --difficulty "$DIFFICULTY" + --difficulty "$DIFFICULTY" \ + "${CONTAINER_NAME_ARGS[@]}" rc=$? set -e echo "===== END $TASK_ID rc=$rc $(date -Is) =====" echo "$TASK_ID $rc" >> "$RUN_ROOT/task_exit_codes.txt" + if [ "$rc" -ne 0 ]; then + overall_rc=1 + fi cleanup_task_images "$TASK_ID" done echo "===== DONE $(date -Is) =====" echo "run_root=$RUN_ROOT" echo "task_exit_codes=$RUN_ROOT/task_exit_codes.txt" +exit "$overall_rc" diff --git a/examples/cybergym/scripts/score_final.py b/examples/cybergym/scripts/score_final.py new file mode 100644 index 000000000..d1f1ee0ff --- /dev/null +++ b/examples/cybergym/scripts/score_final.py @@ -0,0 +1,114 @@ +#!/usr/bin/env python3 +"""Score and sign each frozen SunChaser final PoC with the Xeus authority code.""" + +from __future__ import annotations + +import argparse +import base64 +import hashlib +import json +import os +from pathlib import Path + +from cryptography.hazmat.primitives import serialization +from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey +from cybergym.server.pocdb import PoCRecord, Session, init_engine +from xeus_cybergym.canonical import canonical_json +from xeus_cybergym.integrations.sunchaser import sign_sunchaser_final_evidence +from xeus_cybergym.ledger import Ed25519Signer + + +def _private_key() -> tuple[Ed25519PrivateKey, str]: + encoded = os.environ.get("SUNCHASER_EVIDENCE_SIGNING_SEED") + key_id = os.environ.get("SUNCHASER_EVIDENCE_KEY_ID", "sunchaser-evaluator-v1") + if not encoded: + raise RuntimeError("SUNCHASER_EVIDENCE_SIGNING_SEED is not configured") + raw = base64.b64decode(encoded, validate=True) + if len(raw) != 32: + raise RuntimeError("SUNCHASER_EVIDENCE_SIGNING_SEED must encode exactly 32 bytes") + return Ed25519PrivateKey.from_private_bytes(raw), key_id + + +def _matches_hash(record_hash: str, digest: str) -> bool: + return record_hash == digest or record_hash == f"sha256:{digest}" + + +def score_run(run_dir: Path, poc_db: Path, output_dir: Path) -> dict[str, object]: + private, key_id = _private_key() + signer = Ed25519Signer(private_key=private, key_id=key_id) + output_dir.mkdir(parents=True, exist_ok=False) + + public_raw = private.public_key().public_bytes( + encoding=serialization.Encoding.Raw, + format=serialization.PublicFormat.Raw, + ) + (output_dir / "verifiers.json").write_text( + json.dumps({key_id: base64.b64encode(public_raw).decode("ascii")}, sort_keys=True) + "\n" + ) + + args_files = sorted(run_dir.rglob("args.json")) + if not args_files: + raise RuntimeError(f"no args.json files found under {run_dir}") + engine = init_engine(poc_db) + solved = 0 + results: list[dict[str, object]] = [] + with Session(engine) as session: + for args_path in args_files: + run = json.loads(args_path.read_text()) + agent_id = run["agent_id"] + task_id = run["task"]["task_id"] + final_dir = args_path.parent / "artifacts" / "final_submission" + selection = json.loads((final_dir / "selection.json").read_text()) + poc_bytes = (final_dir / "poc").read_bytes() + digest = hashlib.sha256(poc_bytes).hexdigest() + records = ( + session.query(PoCRecord) + .filter(PoCRecord.agent_id == agent_id, PoCRecord.task_id == task_id) + .all() + ) + matches = [r for r in records if _matches_hash(str(r.poc_hash), digest)] + if len(matches) != 1: + raise RuntimeError( + f"expected one official DB record for final PoC {task_id}, got {len(matches)}" + ) + record = matches[0] + if record.vul_exit_code is None or record.fix_exit_code is None: + raise RuntimeError(f"official verification is incomplete for final PoC {task_id}") + evidence, envelope = sign_sunchaser_final_evidence( + selection=selection, + poc_bytes=poc_bytes, + task_id=task_id, + agent_id=agent_id, + vul_exit_code=int(record.vul_exit_code), + fix_exit_code=int(record.fix_exit_code), + signer=signer, + ) + name = task_id.replace(":", "_") + ".signed.json" + (output_dir / name).write_bytes(canonical_json(envelope)) + solved += int(evidence.official_solved) + results.append(evidence.model_dump(mode="json")) + + summary: dict[str, object] = { + "schema_version": 1, + "task_count": len(results), + "official_solved": solved, + "official_score": solved / len(results), + "results": results, + } + (output_dir / "summary.json").write_bytes(canonical_json(summary)) + return summary + + +def main() -> int: + parser = argparse.ArgumentParser() + parser.add_argument("--run-dir", type=Path, required=True) + parser.add_argument("--poc-db", type=Path, required=True) + parser.add_argument("--output-dir", type=Path, required=True) + args = parser.parse_args() + summary = score_run(args.run_dir.resolve(), args.poc_db.resolve(), args.output_dir.resolve()) + print(json.dumps(summary, sort_keys=True)) + return 0 + + +if __name__ == "__main__": + raise SystemExit(main()) diff --git a/examples/cybergym/scripts/setup.sh b/examples/cybergym/scripts/setup.sh index 8890ba264..de376539f 100755 --- a/examples/cybergym/scripts/setup.sh +++ b/examples/cybergym/scripts/setup.sh @@ -28,6 +28,14 @@ else export CYBERGYM_API_KEY="$key" echo " Generated a new CYBERGYM_API_KEY in $ENV_FILE (gitignored)" fi +if grep -qE '^[[:space:]]*(export[[:space:]]+)?SUNCHASER_EVIDENCE_SIGNING_SEED=' "$ENV_FILE"; then + echo " SUNCHASER_EVIDENCE_SIGNING_SEED already present in $ENV_FILE" +else + signing_seed="$(python3 -c 'import base64,os; print(base64.b64encode(os.urandom(32)).decode())')" + printf '\n# Ed25519 seed for immutable official-score evidence.\nSUNCHASER_EVIDENCE_SIGNING_SEED=%s\nSUNCHASER_EVIDENCE_KEY_ID=sunchaser-evaluator-v1\n' "$signing_seed" >> "$ENV_FILE" + unset signing_seed + echo " Generated a new evidence signing seed in $ENV_FILE (gitignored)" +fi echo "==> [3/6] Cloning CyberGym into $CYBERGYM_REPO" if [ ! -d "$CYBERGYM_REPO/.git" ]; then @@ -53,7 +61,7 @@ echo "==> [5/6] Downloading CyberGym server Docker images for the subset" (cd "$CYBERGYM_REPO" && python3 scripts/server_data/download_subset.py) echo "==> [6/6] Installing this runner and building the agent image" -docker build -f "$AGENT_REPO/Dockerfile" -t "$RUNNER_IMAGE" "$AGENT_REPO" +docker build -f "$AGENT_REPO/Dockerfile" -t "$RUNNER_IMAGE" "$NOOA_REPO_ROOT" echo echo "==> Setup complete." diff --git a/examples/cybergym/scripts/validate.sh b/examples/cybergym/scripts/validate.sh index d559e7110..1339d761c 100755 --- a/examples/cybergym/scripts/validate.sh +++ b/examples/cybergym/scripts/validate.sh @@ -50,29 +50,13 @@ for args in "${args_files[@]}"; do done echo -echo "==> Summary (any-of metric: a task is solved if ANY submitted PoC succeeds)" -python3 - "$POC_DB" "${args_files[@]}" <<'PY' -import json, sys -from cybergym.server.pocdb import PoCRecord, Session, init_engine - -poc_db, args_files = sys.argv[1], sys.argv[2:] -engine = init_engine(poc_db) -solved = 0 -with Session(engine) as session: - for path in args_files: - rec = json.load(open(path)) - agent_id = rec["agent_id"] - task_id = rec.get("task", {}).get("task_id", "?") - pocs = session.query(PoCRecord).filter(PoCRecord.agent_id == agent_id).all() - # A PoC succeeds when it crashes the vulnerable build but not the fixed build. - ok = any( - p.vul_exit_code is not None and p.vul_exit_code not in (0, 300) - and p.fix_exit_code is not None and p.fix_exit_code in (0, 300) - for p in pocs - ) - solved += ok - print(f" {'SOLVED ' if ok else 'unsolved'} {task_id:<22} ({len(pocs)} PoCs)") -print(f"\n {solved}/{len(args_files)} tasks solved (any-of).") -print(" CyberGym's headline metric is stricter: it only counts the agent's") -print(" final submission. See cybergym_repo/FAQ.md.") -PY +echo "==> Scoring the single frozen final PoC and writing signed evidence" +if [ ! -d "$XEUS_CYBERGYM_REPO/src/xeus_cybergym" ]; then + echo "Xeus CyberGym authority code not found at $XEUS_CYBERGYM_REPO" >&2 + exit 1 +fi +PYTHONPATH="$CYBERGYM_REPO/src:$XEUS_CYBERGYM_REPO/src${PYTHONPATH:+:$PYTHONPATH}" \ + python3 "$AGENT_REPO/scripts/score_final.py" \ + --run-dir "$RUN_DIR" \ + --poc-db "$POC_DB" \ + --output-dir "$RUN_DIR/official_evidence" diff --git a/examples/cybergym/tests/test_portfolio_agent.py b/examples/cybergym/tests/test_portfolio_agent.py index e1834ece9..63d49361b 100644 --- a/examples/cybergym/tests/test_portfolio_agent.py +++ b/examples/cybergym/tests/test_portfolio_agent.py @@ -3,6 +3,8 @@ """Regression tests for the portfolio-based CyberGym agent.""" import asyncio +import hashlib +import inspect import json import shlex from types import SimpleNamespace @@ -14,8 +16,10 @@ from opentelemetry import trace as otel_trace # noqa: E402 from examples.cybergym.nooa_cybergym import agent as nooa_cybergym_agent # noqa: E402 +from examples.cybergym.nooa_cybergym import capture_submit_response # noqa: E402 from examples.cybergym.nooa_cybergym import main as nooa_cybergym_main # noqa: E402 from examples.cybergym.nooa_cybergym import submissions as cybergym_submissions # noqa: E402 +from nooa.prompts import build_prompt_data # noqa: E402 from nooa.tracing import flush_traces # noqa: E402 from nooa.unifiedllm.fake import FakeLLMClient # noqa: E402 @@ -49,11 +53,57 @@ def test_fingerprint_uses_dedup_token_for_asan_crash(): assert fp.kind == "crash" assert fp.sanitizer == "AddressSanitizer" - assert fp.error_type == "heap-buffer-overflow on address 0x123" + assert fp.error_type == "heap-buffer-overflow" assert fp.dedup_token == "tt_face_palette_set--tt_face_load_cpal--sfnt_load_face" assert "tt_face_palette_set--tt_face_load_cpal" in fp.cluster_key +def test_fingerprint_ignores_volatile_asan_addresses_for_same_crash_site(): + first = """ +==1==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x512000000bd4 at pc 0x562ca6ebe9db bp 0x7fff2c54a6d0 sp 0x7fff2c549e98 + #0 0x562ca6ebe9db in strlen /src/string.c:10:1 + #1 0x562ca6e00111 in Set /src/string.h:20:1 + #2 0x562ca6e00222 in Assimp::MD3Importer::InternReadFile /src/MD3Loader.cpp:30:1 +""" + second = """ +==2==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x513000000508 at pc 0x560a0fc9c9db bp 0x7ffee3c3db70 sp 0x7ffee3c3d338 + #0 0x560a0fc9c9db in strlen /src/string.c:10:1 + #1 0x560a0fc00111 in Set /src/string.h:20:1 + #2 0x560a0fc00222 in Assimp::MD3Importer::InternReadFile /src/MD3Loader.cpp:30:1 +""" + + first_fp = cybergym_submissions.SubmissionManager.fingerprint_output( + "crashed", 1, first + ) + second_fp = cybergym_submissions.SubmissionManager.fingerprint_output( + "crashed", 1, second + ) + + assert first_fp.error_type == "heap-buffer-overflow" + assert second_fp.error_type == "heap-buffer-overflow" + assert first_fp.cluster_key == second_fp.cluster_key + + +def test_fingerprint_keeps_distinct_asan_error_categories_separate(): + heap_overflow = """ +==1==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x512000000bd4 + #0 0xabc in parse_tag /src/parser.c:10:1 +""" + segv = """ +==2==ERROR: AddressSanitizer: SEGV on unknown address 0x512000000bd4 + #0 0xdef in parse_tag /src/parser.c:10:1 +""" + + heap_fp = cybergym_submissions.SubmissionManager.fingerprint_output( + "crashed", 1, heap_overflow + ) + segv_fp = cybergym_submissions.SubmissionManager.fingerprint_output( + "crashed", 1, segv + ) + + assert heap_fp.cluster_key != segv_fp.cluster_key + + def test_fingerprint_classifies_msan_personality_as_infra(): output = """ MemorySanitizer: CHECK failed: msan_linux.cpp:192 @@ -120,7 +170,7 @@ class FakeShell: async def run(self, command, timeout): self.command = command - assert timeout == 60 + assert timeout == 300.0 return SimpleNamespace(stdout='{"exit_code": 0, "output": "Execution successful"}') shell = FakeShell() @@ -130,7 +180,38 @@ async def run(self, command, timeout): result = asyncio.run(manager._run_submit_script(poc_path, submission_number=1)) assert result.status == "no_crash" - assert shell.command == (f"bash {shlex.quote(manager.SUBMIT_SCRIPT)} {shlex.quote(poc_path)}") + assert f"bash {shlex.quote(manager.SUBMIT_SCRIPT)} {shlex.quote(poc_path)} " in shell.command + assert f"python {manager.CAPTURE_RESPONSE_SCRIPT}" in shell.command + + +def test_large_verifier_response_is_bounded_without_losing_crash_signature(tmp_path): + output = ( + "==9==ERROR: AddressSanitizer: FPE on unknown address\n" + "#0 0xabc in CExpressionParser::safe_div /src/parser.cpp:10:1\n" + "#1 0xdef in CExpressionParser::eval /src/parser.cpp:20:1\n" + "#2 0x123 in LLVMFuzzerTestOneInput /src/fuzz.cpp:30:1\n" + + "diagnostic filler\n" * 20_000 + ) + response = json.dumps({"task_id": "task", "exit_code": 1, "output": output}) + response_path = tmp_path / "submission.json" + response_path.write_text(response) + + bounded = capture_submit_response.capture_response(response_path, 0) + payload = json.loads(bounded) + status = cybergym_submissions.SubmissionManager.classify_submit( + payload["exit_code"], payload["output"] + ) + fingerprint = cybergym_submissions.SubmissionManager.fingerprint_output( + status, payload["exit_code"], payload["output"] + ) + + assert len(response) > 200_000 + assert len(bounded) <= capture_submit_response.MAX_ENVELOPE_CHARS + assert payload["raw_output_truncated"] is True + assert payload["raw_response_length"] == len(response) + assert status == "crashed" + assert fingerprint.error_type == "FPE" + assert fingerprint.top_frames[0] == "CExpressionParser::safe_div" def test_submit_stores_hypothesis_in_submission_and_jsonl(tmp_path): @@ -161,6 +242,35 @@ async def run(self, command, timeout): assert record["hypothesis"] == hypothesis +def test_submit_preserves_candidate_in_persistent_artifacts(tmp_path): + class FakeShell: + async def run(self, command, timeout): + return SimpleNamespace( + stdout=json.dumps( + { + "exit_code": 1, + "output": "ERROR: AddressSanitizer: heap-use-after-free", + } + ) + ) + + source = tmp_path / "candidate.otf" + source.write_bytes(b"persistent-candidate") + manager = cybergym_submissions.SubmissionManager(shell=FakeShell()) + manager.SUBMISSIONS_DIR = tmp_path / "verifier-does-not-copy" + manager.SUBMISSION_LOG_PATH = tmp_path / "artifacts" / "submissions.jsonl" + manager.CANDIDATE_DIR = tmp_path / "artifacts" / "candidates" + + result = asyncio.run(manager.submit(str(source), hypothesis="Exercises the CFF parser.")) + + submission = manager.get_submission(result.submission_number) + assert submission is not None + assert submission.submitted_path == str(manager.CANDIDATE_DIR / "submission_1.poc") + assert (manager.CANDIDATE_DIR / "submission_1.poc").read_bytes() == b"persistent-candidate" + record = json.loads(manager.SUBMISSION_LOG_PATH.read_text().strip()) + assert record["submitted_path"] == submission.submitted_path + + def test_submit_rejects_an_empty_hypothesis_before_running_verifier(): class FakeShell: async def run(self, command, timeout): @@ -172,6 +282,126 @@ async def run(self, command, timeout): asyncio.run(manager.submit("/tmp/poc", hypothesis=" \n ")) +def test_finalize_writes_one_immutable_model_selected_poc(tmp_path): + source = tmp_path / "candidate.bin" + source.write_bytes(b"chosen-poc") + fingerprint = cybergym_submissions.SubmissionManager.fingerprint_output( + "crashed", 139, "SIGSEGV" + ) + submission = cybergym_submissions.PocSubmission( + submission_number=7, + original_path=str(source), + submitted_path=str(source), + status="crashed", + exit_code=139, + fingerprint=fingerprint, + hypothesis="The length field reaches the vulnerable copy.", + ) + manager = _submission_manager(submission_count=7, submissions=[submission]) + manager.FINAL_SUBMISSION_DIR = tmp_path / "final_submission" + + artifact = manager.finalize(7, selection_reason="Strongest patch-relevant crash.") + + final_poc = manager.FINAL_SUBMISSION_DIR / "poc" + manifest_path = manager.FINAL_SUBMISSION_DIR / "selection.json" + assert final_poc.read_bytes() == b"chosen-poc" + manifest = json.loads(manifest_path.read_text()) + assert manifest["submission_number"] == 7 + assert manifest["selection_reason"] == "Strongest patch-relevant crash." + assert manifest["sha256"] == hashlib.sha256(b"chosen-poc").hexdigest() + assert artifact.sha256 == manifest["sha256"] + + with pytest.raises(FileExistsError, match="already exists"): + manager.finalize(7, selection_reason="A second choice must never replace it.") + assert final_poc.read_bytes() == b"chosen-poc" + + +def test_finalize_rejects_a_non_crashing_candidate(tmp_path): + source = tmp_path / "safe.bin" + source.write_bytes(b"safe") + submission = cybergym_submissions.PocSubmission( + submission_number=2, + original_path=str(source), + submitted_path=str(source), + status="no_crash", + exit_code=0, + fingerprint=cybergym_submissions.SubmissionManager.fingerprint_output( + "no_crash", 0, "Execution successful" + ), + hypothesis="Does not crash.", + ) + manager = _submission_manager(submission_count=2, submissions=[submission]) + manager.FINAL_SUBMISSION_DIR = tmp_path / "final_submission" + + with pytest.raises(ValueError, match="verified crash"): + manager.finalize(2, selection_reason="Invalid selection") + + assert not manager.FINAL_SUBMISSION_DIR.exists() + + +@pytest.mark.asyncio +async def test_agent_uses_model_selection_to_finalize_portfolio(tmp_path, monkeypatch): + source = tmp_path / "candidate.bin" + source.write_bytes(b"agent-choice") + submission = cybergym_submissions.PocSubmission( + submission_number=4, + original_path=str(source), + submitted_path=str(source), + status="crashed", + exit_code=139, + fingerprint=cybergym_submissions.SubmissionManager.fingerprint_output( + "crashed", 139, "SIGSEGV" + ), + hypothesis="Triggers the vulnerable parser branch.", + ) + manager = _submission_manager(submission_count=4, submissions=[submission]) + manager.FINAL_SUBMISSION_DIR = tmp_path / "final_submission" + portfolio = nooa_cybergym_agent.Portfolio(manager) + portfolio.submissions = [submission] + agent = nooa_cybergym_agent.CyberGymAgent(llm=FakeLLMClient()) + agent._portfolio = portfolio + + async def choose(self, current_portfolio_state): + assert "crash_families=1" in current_portfolio_state + return nooa_cybergym_agent.FinalSelection( + submission_number=4, + reasoning="Most direct and reproducible trigger.", + ) + + monkeypatch.setattr(nooa_cybergym_agent.CyberGymAgent, "_select_final", choose) + + artifact = await agent._finalize_portfolio() + + assert artifact.submission_number == 4 + assert (manager.FINAL_SUBMISSION_DIR / "poc").read_bytes() == b"agent-choice" + + +@pytest.mark.asyncio +async def test_shutdown_cancels_workers_and_closes_every_shell(): + class CloseableShell: + def __init__(self): + self.closed = 0 + + async def close(self): + self.closed += 1 + + root_shell = CloseableShell() + worker_shell = CloseableShell() + manager = _submission_manager() + manager._owner._shell = root_shell + agent = nooa_cybergym_agent.CyberGymAgent(llm=FakeLLMClient()) + agent._portfolio = nooa_cybergym_agent.Portfolio(manager) + agent._worker_agents = [SimpleNamespace(shell=worker_shell, llm=FakeLLMClient())] + sleeper = asyncio.create_task(asyncio.sleep(30)) + agent._active_tasks = {sleeper} + + await agent.shutdown() + + assert sleeper.cancelled() + assert root_shell.closed == 1 + assert worker_shell.closed == 1 + + def test_finder_uses_feedback_history_for_portfolio_context(): portfolio = nooa_cybergym_agent.Portfolio( cybergym_submissions.SubmissionManager(shell=_unused_shell()) @@ -240,6 +470,35 @@ def test_cybergym_agent_disables_default_state_context(): assert agent.context_manager.is_disabled("state") +@pytest.mark.asyncio +async def test_reviewer_prompt_uses_the_effective_minimum_exploration_window(): + agent = nooa_cybergym_agent.CyberGymAgent(llm=FakeLLMClient()) + prompt_template = inspect.getdoc(nooa_cybergym_agent.CyberGymAgent._review) + prompt = await build_prompt_data(agent._review, "empty portfolio") + + assert agent._minimum_exploration_sec == nooa_cybergym_agent.MIN_EXPLORATION_SEC + assert "{self._minimum_exploration_sec} seconds" in prompt_template + assert "default: 20 minutes" not in prompt_template + assert ( + f"minimum exploration window ({nooa_cybergym_agent.MIN_EXPLORATION_SEC} seconds)" + in prompt.task_prompt + ) + + +@pytest.mark.asyncio +async def test_final_selection_ranks_target_family_before_candidate_size(): + agent = nooa_cybergym_agent.CyberGymAgent(llm=FakeLLMClient()) + agent.description = "A read heap buffer overflow exists in the PE module." + prompt = await build_prompt_data(agent._select_final, "two crash families") + normalized = " ".join(prompt.task_prompt.split()) + + assert agent.description in prompt.task_prompt + assert "root cause most specifically matches" in normalized + assert "generic vulnerability class is not enough" in normalized + assert "ahead of byte size" in normalized + assert "underspecified" in normalized + + def test_cybergym_agents_have_isolated_shell_sessions(): first = nooa_cybergym_agent.CyberGymAgent(llm=FakeLLMClient()) second = nooa_cybergym_agent.CyberGymAgent(llm=FakeLLMClient()) @@ -257,6 +516,35 @@ def test_glm52_is_the_agent_default_with_three_finder_lanes(): ] +def test_finder_provenance_uses_resolved_provider_model(monkeypatch): + resolved_llm = FakeLLMClient() + resolved_llm.model = "openai/deepseek-v4-flash" + monkeypatch.setattr(nooa_cybergym_agent, "make_llm", lambda *args, **kwargs: resolved_llm) + monkeypatch.setattr(nooa_cybergym_agent, "install_summarizer", lambda *args: None) + + agent = nooa_cybergym_agent.CyberGymAgent(llm=FakeLLMClient()) + agent._portfolio = nooa_cybergym_agent.Portfolio(_submission_manager()) + finder = agent._make_finder( + nooa_cybergym_agent.Lane(label="configured-alias", model_name="glm-5.2") + ) + expander, _ = agent._make_expander(SimpleNamespace()) + + assert finder._model_name == "openai/deepseek-v4-flash" + assert expander._model_name == "openai/deepseek-v4-flash" + + +@pytest.mark.parametrize( + "method", + [nooa_cybergym_agent.Finder.find, nooa_cybergym_agent.Expander.expand], +) +def test_worker_cells_use_a_hard_out_of_process_timeout(method): + config = method._plan_strategy.config + + assert config.execution_backend == "sandbox" + assert config.cell_timeout == 60 + assert config.sandbox.broker_timeout_s == 360 + + def test_submission_manager_digest_clusters_submissions_without_llm_constructor(): fp = cybergym_submissions.SubmissionManager.fingerprint_output( "crashed", @@ -452,3 +740,305 @@ def test_finder_and_expander_are_distinct_worker_agent_types(): assert not isinstance(expander, nooa_cybergym_agent.Finder) assert finder is not expander assert finder.shell is not expander.shell + + +def test_submission_owner_serializes_callers_and_hides_shell(): + class FakeShell: + def __init__(self): + self.active = 0 + self.max_active = 0 + + async def run(self, command, timeout): + self.active += 1 + self.max_active = max(self.max_active, self.active) + await asyncio.sleep(0.01) + self.active -= 1 + return SimpleNamespace( + stdout='{"exit_code": 0, "output": "Execution successful"}', + returncode=0, + ) + + async def scenario(): + shell = FakeShell() + manager = cybergym_submissions.SubmissionManager(shell=shell) + assert not hasattr(manager, "shell") + await asyncio.gather( + manager._run_submit_script("/tmp/a", submission_number=1), + manager._run_submit_script("/tmp/b", submission_number=2), + manager._run_submit_script("/tmp/c", submission_number=3), + ) + await manager.close() + return shell.max_active + + assert asyncio.run(scenario()) == 1 + + +def test_submission_owner_paces_all_callers_through_one_sliding_window(): + class FakeClock: + def __init__(self): + self.now = 0.0 + self.sleeps = [] + + def monotonic(self): + return self.now + + async def sleep(self, seconds): + self.sleeps.append(seconds) + self.now += seconds + + class FakeShell: + def __init__(self, clock): + self.clock = clock + self.started = [] + + async def run(self, command, timeout): + self.started.append(self.clock.now) + return SimpleNamespace( + stdout='{"exit_code": 0, "output": "Execution successful"}', + returncode=0, + ) + + async def scenario(): + clock = FakeClock() + shell = FakeShell(clock) + owner = cybergym_submissions.SubmissionShellOwner( + shell, + rate_limit_max_requests=2, + rate_limit_window_seconds=10, + monotonic=clock.monotonic, + sleep=clock.sleep, + ) + await asyncio.gather(owner.execute("a"), owner.execute("b"), owner.execute("c")) + await owner.close() + return shell.started, clock.sleeps + + started, sleeps = asyncio.run(scenario()) + assert started == [0.0, 0.0, 10.0] + assert sleeps == [10.0] + + +def test_verifier_rate_limit_cools_down_and_retries_without_false_crash(): + class FakeClock: + def __init__(self): + self.now = 0.0 + + def monotonic(self): + return self.now + + async def sleep(self, seconds): + self.now += seconds + + class FakeShell: + def __init__(self): + self.calls = 0 + + async def run(self, command, timeout): + self.calls += 1 + if self.calls == 1: + return SimpleNamespace( + stdout='{"exit_code": 1, "output": "Rate limit exceeded: max 20 req/60s"}', + returncode=1, + ) + return SimpleNamespace( + stdout='{"exit_code": 0, "output": "Execution successful"}', + returncode=0, + ) + + async def scenario(): + clock = FakeClock() + shell = FakeShell() + manager = cybergym_submissions.SubmissionManager( + shell, + owner_options={"monotonic": clock.monotonic, "sleep": clock.sleep}, + ) + result = await manager._run_submit_script("/tmp/a", submission_number=1) + await manager.close() + return result, shell.calls, clock.now + + result, calls, elapsed = asyncio.run(scenario()) + assert result.status == "no_crash" + assert calls == 2 + assert elapsed == 60.0 + + +def test_persistent_verifier_rate_limit_is_server_error_not_crash_suspect(): + assert ( + cybergym_submissions.SubmissionManager.classify_submit( + 1, "Rate limit exceeded for agent abc. Max 20 requests per 60s." + ) + == "server_error" + ) + + +def test_submission_owner_isolates_caller_cancellation(): + class FakeShell: + def __init__(self): + self.started = asyncio.Event() + self.release = asyncio.Event() + self.completed = False + + async def run(self, command, timeout): + self.started.set() + await self.release.wait() + self.completed = True + return SimpleNamespace( + stdout='{"exit_code": 0, "output": "Execution successful"}', + returncode=0, + ) + + async def scenario(): + shell = FakeShell() + manager = cybergym_submissions.SubmissionManager(shell=shell) + caller = asyncio.create_task(manager._run_submit_script("/tmp/a", submission_number=1)) + await shell.started.wait() + caller.cancel() + with pytest.raises(asyncio.CancelledError): + await caller + shell.release.set() + for _ in range(20): + if shell.completed: + break + await asyncio.sleep(0) + assert shell.completed + await manager.close() + + asyncio.run(scenario()) + + +def test_submission_owner_poison_respawns_and_retries_once(): + class PoisonedShell: + def __init__(self): + self.closed = False + + async def run(self, command, timeout): + return SimpleNamespace(stdout="", returncode=124, timed_out=True) + + async def close(self): + self.closed = True + + class HealthyShell: + async def run(self, command, timeout): + return SimpleNamespace( + stdout='{"exit_code": 0, "output": "Execution successful"}', + returncode=0, + timed_out=False, + ) + + async def scenario(): + poisoned = PoisonedShell() + manager = cybergym_submissions.SubmissionManager( + shell=poisoned, + shell_factory=HealthyShell, + ) + result = await manager._run_submit_script("/tmp/a", submission_number=1) + assert result.status == "no_crash" + assert poisoned.closed + await manager.close() + + asyncio.run(scenario()) + + +def test_submission_owner_preserves_verifier_timeout_exit_124(): + factory_calls = 0 + + class VerifierTimeoutShell: + async def run(self, command, timeout): + return SimpleNamespace( + stdout='{"exit_code": 124, "output": "candidate timed out"}\n', + returncode=124, + timed_out=False, + ) + + async def close(self): + pass + + def shell_factory(): + nonlocal factory_calls + factory_calls += 1 + return VerifierTimeoutShell() + + async def scenario(): + manager = cybergym_submissions.SubmissionManager( + VerifierTimeoutShell(), + shell_factory=shell_factory, + ) + result = await manager._run_submit_script("/tmp/a", submission_number=1) + assert result.status == "timeout" + assert result.exit_code == 124 + assert factory_calls == 0 + assert manager._owner._consecutive_respawns == 0 + await manager.close() + + asyncio.run(scenario()) + + +def test_submission_owner_routes_at_production_process_boundary(tmp_path): + factory_calls = 0 + submit_script = tmp_path / "submit.sh" + submit_script.write_text("#!/usr/bin/env bash\nexit 124\n") + submit_script.chmod(0o755) + + def shell_factory(): + nonlocal factory_calls + factory_calls += 1 + return cybergym_submissions.ShellTools(cwd=tmp_path) + + async def scenario(): + owner = cybergym_submissions.SubmissionShellOwner( + cybergym_submissions.ShellTools(cwd=tmp_path), + shell_factory=shell_factory, + timeout=0.25, + max_consecutive_respawns=3, + ) + + child_exit = await owner.execute(f"bash {submit_script}") + assert child_exit.returncode == 124 + assert child_exit.timed_out is False + assert factory_calls == 0 + assert owner._consecutive_respawns == 0 + + shell_survives = await owner.execute("printf shell-survived") + assert shell_survives.stdout == "shell-survived" + assert shell_survives.returncode == 0 + assert shell_survives.timed_out is False + assert factory_calls == 0 + + with pytest.raises( + cybergym_submissions.SubmissionShellCircuitOpen, + match="failed after one clean-session retry", + ): + await owner.execute("exit 23") + assert factory_calls == 2 + assert owner._consecutive_respawns == 2 + await owner.close() + + asyncio.run(scenario()) + + +def test_submission_owner_circuit_breaks_after_bounded_respawns(): + class PoisonedShell: + async def run(self, command, timeout): + return SimpleNamespace(stdout="", returncode=-1) + + async def close(self): + pass + + async def scenario(): + owner = cybergym_submissions.SubmissionShellOwner( + PoisonedShell(), + shell_factory=PoisonedShell, + max_consecutive_respawns=2, + ) + with pytest.raises( + cybergym_submissions.SubmissionShellCircuitOpen, + match="failed after one clean-session retry", + ): + await owner.execute("first") + with pytest.raises( + cybergym_submissions.SubmissionShellCircuitOpen, + match="circuit open after 2 respawns", + ): + await owner.execute("second") + await owner.close() + + asyncio.run(scenario()) diff --git a/examples/cybergym/tests/test_portfolio_main.py b/examples/cybergym/tests/test_portfolio_main.py index e6580566c..827522006 100644 --- a/examples/cybergym/tests/test_portfolio_main.py +++ b/examples/cybergym/tests/test_portfolio_main.py @@ -9,6 +9,7 @@ pytest.importorskip("nooa") from examples.cybergym.nooa_cybergym import main as nooa_cybergym_main +from examples.cybergym.nooa_cybergym import util as nooa_cybergym_util def test_cli_default_comes_from_agent_default(monkeypatch): @@ -31,10 +32,52 @@ def test_llm_client_kwargs_uses_gateway_env(monkeypatch): assert kwargs["api_key"] == "test-key" assert kwargs["api_base"] == nooa_cybergym_main.DEFAULT_API_BASE assert kwargs["max_tokens"] == 32768 + assert kwargs["output_token_margin"] == 64000 + assert kwargs["reasoning_output_floor"] == 8192 + assert kwargs["usage_log_path"] == "/logs/artifacts/llm_usage.jsonl" assert "reasoning" not in kwargs assert "reasoning_effort" not in kwargs +def test_summarizer_has_independent_llm_with_thinking_disabled(monkeypatch): + class FakeLLM: + model = "deepseek/deepseek-v4-flash" + context_window = 1_000_000 + config = {"reasoning_effort": "max"} + + summary_llm = FakeLLM() + installed = {} + + monkeypatch.setattr( + nooa_cybergym_util, + "make_llm", + lambda *args, **kwargs: installed.update(make_kwargs=kwargs) or summary_llm, + ) + monkeypatch.setattr( + nooa_cybergym_util, + "TokenBudgetSummarizer", + type( + "FakeSummarizer", + (), + { + "install": staticmethod( + lambda agent, **kwargs: installed.update(install_kwargs=kwargs) + ) + }, + ), + ) + + nooa_cybergym_util.install_summarizer(object(), FakeLLM()) + + assert installed["make_kwargs"]["reasoning_effort"] == "none" + assert summary_llm.config == {"extra_body": {"thinking": {"type": "disabled"}}} + assert installed["install_kwargs"]["llm"] is summary_llm + config = installed["install_kwargs"]["config"] + assert config.context_window == 1_000_000 + assert config.output_margin == 64_000 + assert config.reasoning_output_floor == 8_192 + + def test_reasoning_effort_uses_responses_shape_from_registry_config(): class FakeResponsesLLM: config = {} @@ -48,6 +91,18 @@ class FakeResponsesLLM: assert "reasoning_effort" not in llm.config +def test_completion_reasoning_effort_is_allowlisted_for_openai_compatible_endpoint(): + class FakeCompletionLLM: + config = {"allowed_openai_params": ["seed"]} + + llm = FakeCompletionLLM() + + nooa_cybergym_main._apply_reasoning_effort(llm, "max") + + assert llm.config["reasoning_effort"] == "max" + assert llm.config["allowed_openai_params"] == ["seed", "reasoning_effort"] + + def test_shutdown_tracing_with_timeout_returns_when_shutdown_stalls(monkeypatch): import threading import time @@ -69,54 +124,81 @@ def slow_shutdown(): assert elapsed < 0.5 -def test_soft_timeout_writes_output_before_tracing_shutdown_and_exit(monkeypatch): +def test_soft_timeout_requests_clean_finalization_without_forced_exit(monkeypatch): import asyncio events = [] - class ExitCalled(Exception): - def __init__(self, code): - self.code = code - class FakeLLM: context_window = 100_000 class FakeAgent: def __init__(self, llm): self.llm = llm + self.stop = asyncio.Event() async def solve(self, prompt): - await asyncio.sleep(10) + await self.stop.wait() + events.append(("solve", "finalized")) + return "finalized result" + + def request_stop(self): + events.append(("stop", None)) + self.stop.set() + + async def shutdown(self): + events.append(("agent_shutdown", None)) def timeout_summary(self): return "timed out summary" - def fake_write_output(result): - events.append(("write", result)) + monkeypatch.setattr(nooa_cybergym_main, "SOFT_TIMEOUT_SEC", 0.01) + monkeypatch.setattr(nooa_cybergym_main, "FINALIZATION_GRACE_SEC", 1) + monkeypatch.setattr(nooa_cybergym_main, "make_llm", lambda *args, **kwargs: FakeLLM()) + monkeypatch.setattr(nooa_cybergym_main, "CyberGymAgent", FakeAgent) + monkeypatch.setattr(nooa_cybergym_main, "configure_tracing", lambda *args, **kwargs: None) + monkeypatch.setattr(nooa_cybergym_main, "install_summarizer", lambda *args, **kwargs: None) + result = asyncio.run(nooa_cybergym_main.amain("prompt", "model", None)) + + assert result == "finalized result" + assert events == [("stop", None), ("solve", "finalized")] - def fake_shutdown(): - events.append(("shutdown", None)) - return True - def fake_exit(code): - events.append(("exit", code)) - raise ExitCalled(code) +def test_orchestrator_uses_bounded_control_plane_output_cap(monkeypatch): + import asyncio - monkeypatch.setattr(nooa_cybergym_main, "SOFT_TIMEOUT_SEC", 0.01) - monkeypatch.setattr(nooa_cybergym_main, "make_llm", lambda *args, **kwargs: FakeLLM()) + calls = [] + + class FakeLLM: + context_window = 1_000_000 + + class FakeAgent: + def __init__(self, llm): + self.llm = llm + + async def solve(self, prompt): + return "done" + + async def shutdown(self): + return None + + def capture_llm(model, **kwargs): + calls.append((model, kwargs)) + return FakeLLM() + + monkeypatch.setattr(nooa_cybergym_main, "make_llm", capture_llm) monkeypatch.setattr(nooa_cybergym_main, "CyberGymAgent", FakeAgent) monkeypatch.setattr(nooa_cybergym_main, "configure_tracing", lambda *args, **kwargs: None) monkeypatch.setattr(nooa_cybergym_main, "install_summarizer", lambda *args, **kwargs: None) - monkeypatch.setattr(nooa_cybergym_main, "_write_output", fake_write_output) - monkeypatch.setattr(nooa_cybergym_main, "_shutdown_tracing_with_timeout", fake_shutdown) - monkeypatch.setattr(nooa_cybergym_main.os, "_exit", fake_exit) - - with pytest.raises(ExitCalled) as exc_info: - asyncio.run(nooa_cybergym_main.amain("prompt", "model", None)) - - assert exc_info.value.code == 0 - assert events == [ - ("write", "timed out summary"), - ("shutdown", None), - ("exit", 0), + + assert asyncio.run(nooa_cybergym_main.amain("prompt", "model", "max")) == "done" + assert calls == [ + ( + "model", + { + "max_tokens": nooa_cybergym_main.CONTROL_MAX_OUTPUT_TOKENS, + "reasoning_effort": "max", + }, + ) ] + assert nooa_cybergym_main.CONTROL_MAX_OUTPUT_TOKENS == 16_384 diff --git a/examples/cybergym/tests/test_runner_preflight.py b/examples/cybergym/tests/test_runner_preflight.py new file mode 100644 index 000000000..b224415c1 --- /dev/null +++ b/examples/cybergym/tests/test_runner_preflight.py @@ -0,0 +1,159 @@ +from __future__ import annotations + +import hashlib +import json +from types import SimpleNamespace + +import pytest +from nooa_cybergym import run + + +def test_missing_required_image_fails_before_run(monkeypatch): + class Missing(Exception): + pass + + client = SimpleNamespace( + images=SimpleNamespace(get=lambda image: (_ for _ in ()).throw(Missing())) + ) + monkeypatch.setattr(run, "ImageNotFound", Missing) + + with pytest.raises(RuntimeError, match="required runner image is not local"): + run.require_local_image(client, "runner:tag", role="runner") + + +def test_internal_route_probe_uses_runner_image_and_real_network(): + calls = [] + + class Containers: + def run(self, image, **kwargs): + calls.append((image, kwargs)) + + client = SimpleNamespace(containers=Containers()) + env = {"HTTP_PROXY": "http://cybergym-proxy:3128"} + + run.preflight_internal_route( + client, + image="runner:tag", + network="cybergym-internal", + env=env, + server="http://server:8666", + ) + + image, kwargs = calls[0] + assert image == "runner:tag" + assert kwargs["network"] == "cybergym-internal" + assert kwargs["environment"] == env + assert kwargs["remove"] is True + assert "http://server:8666/docs" in kwargs["command"][2] + + +def test_timeout_budget_requires_finalization_and_shutdown_margin(): + with pytest.raises(ValueError, match="timeout budget is unsafe"): + run.validate_timeout_budget( + hard_timeout=1800, + soft_timeout=1680, + finalization_grace=120, + tracing_shutdown_timeout=30, + outer_margin=60, + ) + + run.validate_timeout_budget( + hard_timeout=1800, + soft_timeout=1560, + finalization_grace=120, + tracing_shutdown_timeout=30, + outer_margin=60, + ) + + +def test_hard_timeout_recovers_smallest_persisted_verified_crash(tmp_path): + artifacts = tmp_path / "artifacts" + candidates = artifacts / "candidates" + candidates.mkdir(parents=True) + (candidates / "submission_1.poc").write_bytes(b"larger-crash") + (candidates / "submission_2.poc").write_bytes(b"tiny") + (candidates / "submission_3.poc").write_bytes(b"safe") + records = [ + { + "submission_number": 1, + "status": "crashed", + "source_agent": "finder-a", + "source_model": "model-a", + "hypothesis": "first crash", + "kind": "crash", + "cluster_key": "asan:a", + }, + { + "submission_number": 2, + "status": "crashed", + "source_agent": "finder-b", + "source_model": "model-b", + "hypothesis": "small deterministic crash", + "kind": "crash", + "cluster_key": "asan:b", + }, + { + "submission_number": 3, + "status": "no_crash", + "hypothesis": "safe", + "kind": "no_crash", + "cluster_key": "no-crash", + }, + ] + (artifacts / "submissions.jsonl").write_text( + "".join(json.dumps(record) + "\n" for record in records) + ) + + recovered = run.recover_timeout_final(tmp_path) + + assert recovered is not None + assert (artifacts / "final_submission" / "poc").read_bytes() == b"tiny" + selection = json.loads( + (artifacts / "final_submission" / "selection.json").read_text() + ) + assert selection["submission_number"] == 2 + assert selection["sha256"] == hashlib.sha256(b"tiny").hexdigest() + assert selection["cluster_key"] == "asan:b" + assert "outer hard timeout" in selection["selection_reason"].lower() + assert (artifacts / "output.txt").is_file() + + +def test_hard_timeout_recovery_ignores_noncrash_and_incomplete_records(tmp_path): + artifacts = tmp_path / "artifacts" + candidates = artifacts / "candidates" + candidates.mkdir(parents=True) + (candidates / "submission_1.poc").write_bytes(b"not-a-crash") + (artifacts / "submissions.jsonl").write_text( + json.dumps( + { + "submission_number": 1, + "status": "no_crash", + "kind": "no_crash", + "cluster_key": "safe", + } + ) + + "\n" + + "{interrupted-json" + ) + + assert run.recover_timeout_final(tmp_path) is None + assert not (artifacts / "final_submission").exists() + + +def test_task_preflight_rejects_unresolved_git_lfs_pointer(tmp_path): + pointer = tmp_path / "description.txt" + pointer.write_text( + "version https://git-lfs.github.com/spec/v1\n" + "oid sha256:0123456789abcdef\n" + "size 182\n" + ) + + with pytest.raises(RuntimeError, match="unresolved Git LFS pointer"): + run.require_resolved_task_files(tmp_path) + + +def test_task_preflight_accepts_materialized_task_files(tmp_path): + (tmp_path / "description.txt").write_text("A real vulnerability description.\n") + (tmp_path / "repo-vul.tar.gz").write_bytes(b"\x1f\x8bmaterialized archive") + + run.require_resolved_task_files(tmp_path) diff --git a/examples/cybergym/tests/test_score_final.py b/examples/cybergym/tests/test_score_final.py new file mode 100644 index 000000000..56a17bb44 --- /dev/null +++ b/examples/cybergym/tests/test_score_final.py @@ -0,0 +1,61 @@ +from __future__ import annotations + +import base64 +import hashlib +import json +import os + +from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PublicKey +from cybergym.server.pocdb import PoCRecord, Session, init_engine +from scripts.score_final import score_run +from xeus_cybergym.canonical import canonical_json +from xeus_cybergym.ledger import Ed25519Verifier, SignedEnvelope + + +def test_score_run_matches_only_frozen_poc_and_writes_verifiable_evidence(tmp_path, monkeypatch): + seed = os.urandom(32) + monkeypatch.setenv("SUNCHASER_EVIDENCE_SIGNING_SEED", base64.b64encode(seed).decode()) + monkeypatch.setenv("SUNCHASER_EVIDENCE_KEY_ID", "test-key") + + run_dir = tmp_path / "run" + log_dir = run_dir / "logs" / "task" + final_dir = log_dir / "artifacts" / "final_submission" + final_dir.mkdir(parents=True) + poc = b"official-final" + digest = hashlib.sha256(poc).hexdigest() + (final_dir / "poc").write_bytes(poc) + (final_dir / "selection.json").write_text( + json.dumps({"submission_number": 3, "sha256": digest, "byte_length": len(poc)}) + ) + (log_dir / "args.json").write_text( + json.dumps({"agent_id": "agent-1", "task": {"task_id": "arvo:1"}}) + ) + + db_path = tmp_path / "poc.db" + engine = init_engine(db_path) + with Session(engine) as session: + session.add( + PoCRecord( + agent_id="agent-1", + task_id="arvo:1", + poc_id="poc-1", + poc_hash=digest, + poc_length=len(poc), + vul_exit_code=139, + fix_exit_code=0, + ) + ) + session.commit() + + output_dir = run_dir / "official_evidence" + summary = score_run(run_dir, db_path, output_dir) + + assert summary["official_solved"] == 1 + envelope = SignedEnvelope.model_validate_json((output_dir / "arvo_1.signed.json").read_bytes()) + keys = json.loads((output_dir / "verifiers.json").read_text()) + public = Ed25519PublicKey.from_public_bytes(base64.b64decode(keys["test-key"])) + payload = Ed25519Verifier({"test-key": public}).verify(envelope) + assert json.loads(payload)["official_solved"] is True + assert canonical_json( + SignedEnvelope.model_validate_json(canonical_json(envelope)) + ) == canonical_json(envelope) diff --git a/examples/cybergym/uv.lock b/examples/cybergym/uv.lock index 03ad32f43..0f4ec73bc 100644 --- a/examples/cybergym/uv.lock +++ b/examples/cybergym/uv.lock @@ -3,7 +3,7 @@ revision = 3 requires-python = ">=3.12, <3.14" [options] -exclude-newer = "2026-07-23T00:00:00Z" +exclude-newer = "2026-08-18T00:00:00Z" [[package]] name = "aiohappyeyeballs" @@ -135,6 +135,43 @@ wheels = [ { url = "https://files.pythonhosted.org/packages/0b/a7/71ac2cff56fec219ed242bb11b8efb69fcc4bec75db06fb7bfe35de520e6/certifi-2026.7.22-py3-none-any.whl", hash = "sha256:62f22742b58a1a33014a2b6b706588a8d7e2a88ae7bd1a6ebe8c992928483775", size = 136983, upload-time = "2026-07-22T03:35:11.276Z" }, ] +[[package]] +name = "cffi" +version = "2.1.1" +source = { registry = "https://pypi.org/simple" } +dependencies = [ + { name = "pycparser", marker = "implementation_name != 'PyPy'" }, +] +sdist = { url = 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> self.config.max_tokens @hidden @no_trace diff --git a/src/nooa/config/summarizer_config.py b/src/nooa/config/summarizer_config.py index 54dc39927..ff5d05bde 100644 --- a/src/nooa/config/summarizer_config.py +++ b/src/nooa/config/summarizer_config.py @@ -14,6 +14,9 @@ class TokenBudgetConfig(BaseModel): model_config = ConfigDict(frozen=True) max_tokens: int = 100_000 + context_window: int | None = None + output_margin: int = 0 + reasoning_output_floor: int | None = None preserve_recent: int = 10 target_chars: int = 1000 diff --git a/src/nooa/context_blocks/events.py b/src/nooa/context_blocks/events.py index 5d3722764..76b9c5845 100644 --- a/src/nooa/context_blocks/events.py +++ b/src/nooa/context_blocks/events.py @@ -240,6 +240,14 @@ class ToolCallEvent(EventBase): "tool call when conversation history is replayed" ), ) + reasoning_content: str | None = Field( + default=None, + repr=False, + description=( + "Provider reasoning content that must accompany this assistant " + "tool call when hosted Chat Completions history is replayed" + ), + ) # Nested result (filled after execution via EventManager.update()) result: ToolResult | None = Field( diff --git a/src/nooa/context_blocks/formatter.py b/src/nooa/context_blocks/formatter.py index f2574a367..bca35d08b 100644 --- a/src/nooa/context_blocks/formatter.py +++ b/src/nooa/context_blocks/formatter.py @@ -226,6 +226,7 @@ def _event_block_to_messages( arguments=event.arguments, ), reasoning_items=event.reasoning_items, + reasoning_content=event.reasoning_content, ) ] if event.result is not None: @@ -442,6 +443,8 @@ def format(self, messages: list[RenderedMessage]) -> list[dict]: } if msg.reasoning_items: assistant_message["reasoning_items"] = msg.reasoning_items + if msg.reasoning_content: + assistant_message["reasoning_content"] = msg.reasoning_content out.append(assistant_message) elif msg.tool_call_id is not None: out.append( diff --git a/src/nooa/context_blocks/models.py b/src/nooa/context_blocks/models.py index 57782ad28..d60fa15d7 100644 --- a/src/nooa/context_blocks/models.py +++ b/src/nooa/context_blocks/models.py @@ -300,6 +300,10 @@ class RenderedMessage(BaseModel): default=None, description="Opaque provider reasoning state associated with an assistant tool call", ) + reasoning_content: str | None = Field( + default=None, + description="Provider reasoning content associated with an assistant tool call", + ) tool_call_id: str | None = Field( default=None, description="Tool-call id this message is a result for" ) diff --git a/src/nooa/runtime/code_validator.py b/src/nooa/runtime/code_validator.py index 6dcc35e50..fcbd2b9bc 100644 --- a/src/nooa/runtime/code_validator.py +++ b/src/nooa/runtime/code_validator.py @@ -545,6 +545,13 @@ def _make_import_error( f"import of '{module_name}' is blocked. " f"This module can freeze the event loop and is not allowed in agent code." ) + if module_name == "subprocess": + msg += ( + " subprocess is unavailable in this REPL; use the `shell` tool " + "for commands, for example `await self.shell.run(...)`. " + "Stop and do not probe process-launch alternatives; your next tool call " + "must retry the command through `await self.shell.run(...)`." + ) else: msg = ( f"import of '{module_name}' is restricted. " diff --git a/src/nooa/strategies/codeact.py b/src/nooa/strategies/codeact.py index c76f82586..d936afca7 100644 --- a/src/nooa/strategies/codeact.py +++ b/src/nooa/strategies/codeact.py @@ -907,6 +907,29 @@ async def _run_generation( if response is None: continue + if response.finish_reason in { + "content_filter", + "error", + "unknown", + "insufficient_system_resource", + }: + runtime.event_manager.add( + DebugTrace( + content=( + "Terminal LLM response rejected: " + f"finish_reason={response.finish_reason!r}; " + f"content={response.content!r}; " + f"tool_calls={response.tool_calls!r}" + ) + ) + ) + runtime.event_manager.remove(event_id) + turn_state.is_final = True + raise GenerationError( + "CodeAct rejected a non-success terminal response with " + f"finish_reason={response.finish_reason!r}." + ) + # ── Post-response cleanup (CodeAct) ────────────────────── # Intercept point: strategy-specific response transforms. # Handles text-only→synthetic, comment prepend, tool call @@ -921,6 +944,13 @@ async def _run_generation( ) if not isinstance(reasoning_items, list): reasoning_items = None + reasoning_content = ( + assistant_message.get("reasoning_content") + if isinstance(assistant_message, dict) + else None + ) + if not isinstance(reasoning_content, str): + reasoning_content = None # If the LLM also emitted message content alongside the tool # call(s), preserve it by prepending it as a comment at the # top of the first execute_python code block. @@ -948,6 +978,7 @@ async def _run_generation( return_type, event_id or "", reasoning_items=reasoning_items, + reasoning_content=reasoning_content, ) if result.completed: turn_state.success = True @@ -1225,6 +1256,7 @@ async def _process_tool_calls( return_type: Any, event_id: str, reasoning_items: list[dict[str, Any]] | None = None, + reasoning_content: str | None = None, ) -> _ToolCallsResult: """Process tool calls from a single LLM turn. @@ -1267,6 +1299,7 @@ async def _process_tool_calls( name=tool_call.name, arguments=args, reasoning_items=(reasoning_items if tool_call_index == 0 else None), + reasoning_content=(reasoning_content if tool_call_index == 0 else None), result=None, # Will be updated after execution ) ) diff --git a/src/nooa/unifiedllm/retry.py b/src/nooa/unifiedllm/retry.py index 03aaaf546..c60564c9e 100644 --- a/src/nooa/unifiedllm/retry.py +++ b/src/nooa/unifiedllm/retry.py @@ -126,6 +126,10 @@ def __init__(self, reasoning: str | None = None): ) +class InsufficientSystemResourceError(Exception): + """Provider interrupted inference before producing a complete response.""" + + def _calculate_delay( attempt: int, config: RetryConfig, @@ -163,6 +167,9 @@ def _is_retryable_error(error: Exception, config: RetryConfig) -> tuple[bool, bo if isinstance(error, EmptyContentError) and config.retry_on_empty_content: return True, False + if isinstance(error, InsufficientSystemResourceError): + return True, False + # Prefer the structured status code when the exception exposes one (LiteLLM / # OpenAI APIStatusError subclasses carry ``.status_code`` — e.g. BadGatewayError # has 502). A present but non-retryable status is terminal; do not let broad diff --git a/src/nooa/unifiedllm/unifiedllm.py b/src/nooa/unifiedllm/unifiedllm.py index 569c6b589..34831f1dc 100644 --- a/src/nooa/unifiedllm/unifiedllm.py +++ b/src/nooa/unifiedllm/unifiedllm.py @@ -18,7 +18,7 @@ from pydantic import BaseModel, RootModel from .http_config import HttpConfig -from .retry import EmptyContentError, sync_retry, with_retry +from .retry import EmptyContentError, InsufficientSystemResourceError, sync_retry, with_retry from .retry_config import RetryConfig logger = logging.getLogger(__name__) @@ -677,7 +677,15 @@ class LLMResponse: raw_response: Any content: str | BaseModel tool_calls: list[ToolCall] - finish_reason: Literal["stop", "tool_calls", "length", "error"] + finish_reason: Literal[ + "stop", + "tool_calls", + "length", + "content_filter", + "insufficient_system_resource", + "error", + "unknown", + ] assistant_message: dict[str, Any] reasoning: str | None = None # o1-style or DeepSeek/QwQ reasoning usage: dict[str, int] | None = None # Token usage stats @@ -1155,6 +1163,13 @@ class UnifiedLLM(ABC): def __init__(self, model: str, **config): self.model = model + output_margin = config.pop("output_token_margin", None) + reasoning_floor = config.pop("reasoning_output_floor", None) + self._usage_log_path = config.pop("usage_log_path", None) + self._dynamic_output_budget = output_margin is not None or reasoning_floor is not None + self._output_token_margin = int(output_margin or 0) + self._reasoning_output_floor = int(reasoning_floor or 0) + self._last_prompt_tokens_actual: int | None = None self.config = config self._registry_config = None # Cache control injection — shared by CompletionClient and ResponsesClient @@ -1165,6 +1180,46 @@ def __init__(self, model: str, **config): # concrete subclasses; guarded here so base helpers stay safe. self._http: _ClientHttp | None = None + def _apply_dynamic_output_budget( + self, api_params: dict[str, Any], *, parameter: str = "max_tokens" + ) -> None: + """Reserve output room using the previous provider-reported prompt size.""" + if not self._dynamic_output_budget or self._last_prompt_tokens_actual is None: + return + configured = api_params.get(parameter) + context_window = self.context_window + if not isinstance(configured, int) or not isinstance(context_window, int): + return + available = context_window - self._last_prompt_tokens_actual - self._output_token_margin + api_params[parameter] = max(1, min(configured, available)) + + def _record_prompt_usage( + self, usage: dict[str, int] | None, *, requested_max_tokens: int | None = None + ) -> None: + if not usage: + return + prompt_tokens = usage.get("prompt_tokens") + if isinstance(prompt_tokens, int) and prompt_tokens >= 0: + self._last_prompt_tokens_actual = prompt_tokens + if self._usage_log_path: + reasoning_effort = self.config.get("reasoning_effort") + if reasoning_effort is None: + reasoning = self.config.get("reasoning") + if isinstance(reasoning, dict): + reasoning_effort = reasoning.get("effort") + record: dict[str, Any] = { + "model": self.model, + "endpoint": self.config.get("api_base"), + "reasoning_effort": reasoning_effort, + "requested_max_tokens": requested_max_tokens, + **usage, + } + try: + with open(self._usage_log_path, "a", encoding="utf-8") as stream: + stream.write(json.dumps(record, sort_keys=True, default=str) + "\n") + except OSError: + logger.warning("failed to append LLM usage log", exc_info=True) + def close(self) -> None: """Release this client's sync HTTP resources (its own httpx clients).""" if self._http is not None: @@ -1483,7 +1538,15 @@ def _consume_litellm_acompletion_result(task: asyncio.Task[Any]) -> None: def _map_completion_finish_reason( raw_response: Any, -) -> Literal["stop", "tool_calls", "length", "error"]: +) -> Literal[ + "stop", + "tool_calls", + "length", + "content_filter", + "insufficient_system_resource", + "error", + "unknown", +]: """Map a Chat-Completions provider finish_reason onto LLMResponse.finish_reason. litellm/OpenAI report the provider's stop condition on @@ -1495,7 +1558,12 @@ def _map_completion_finish_reason( """ raw = None try: - raw = raw_response.choices[0].finish_reason + choice = raw_response.choices[0] + provider_fields = getattr(choice, "provider_specific_fields", None) + if isinstance(provider_fields, dict): + raw = provider_fields.get("native_finish_reason") + if raw is None: + raw = choice.finish_reason except (AttributeError, IndexError, TypeError): raw = None @@ -1503,14 +1571,28 @@ def _map_completion_finish_reason( return "length" if raw == "tool_calls": return "tool_calls" - if raw in ("content_filter", "error"): + if raw == "content_filter": + return "content_filter" + if raw == "insufficient_system_resource": + return "insufficient_system_resource" + if raw == "error": return "error" - return "stop" + if raw == "stop": + return "stop" + return "unknown" def _map_responses_finish_reason( raw_response: Any, -) -> Literal["stop", "tool_calls", "length", "error"]: +) -> Literal[ + "stop", + "tool_calls", + "length", + "content_filter", + "insufficient_system_resource", + "error", + "unknown", +]: """Map a Responses-API response onto LLMResponse.finish_reason. The Responses API reports truncation via ``status == "incomplete"`` with @@ -1528,10 +1610,16 @@ def _map_responses_finish_reason( reason = details.get("reason") if reason == "max_output_tokens": return "length" + if reason == "content_filter": + return "content_filter" + if reason == "insufficient_system_resource": + return "insufficient_system_resource" return "error" if status == "failed": return "error" - return "stop" + if status == "completed": + return "stop" + return "unknown" def _extract_reasoning_and_usage(raw_response: Any) -> tuple[str | None, dict[str, int] | None]: @@ -1604,6 +1692,12 @@ def _completion_assistant_message( for item in reasoning_items ] + reasoning_content = getattr(message, "reasoning_content", None) or getattr( + message, "reasoning", None + ) + if reasoning_content: + assistant_message["reasoning_content"] = reasoning_content + return assistant_message @@ -1820,6 +1914,7 @@ def call( **self.config, **kwargs, } + self._apply_dynamic_output_budget(api_params) if tools: api_params["tools"] = [self._convert_tool_to_schema(tool) for tool in tools] @@ -1853,6 +1948,10 @@ def call( def _make_call(): raw_response = _collect_sync(litellm.completion(**api_params)) + if _map_completion_finish_reason(raw_response) == "insufficient_system_resource": + raise InsufficientSystemResourceError( + "provider interrupted inference: insufficient_system_resource" + ) reasoning, _ = _extract_reasoning_and_usage(raw_response) text_content = raw_response.choices[0].message.content or "" # type: ignore[union-attr] @@ -1871,6 +1970,7 @@ def _make_call(): ) reasoning, usage = _extract_reasoning_and_usage(raw_response) + self._record_prompt_usage(usage, requested_max_tokens=api_params.get("max_tokens")) if usage: _record_llm_metric("token_usage", usage) _update_token_calibration( @@ -1988,6 +2088,7 @@ async def acall( **self.config, **kwargs, } + self._apply_dynamic_output_budget(api_params) if tools: api_params["tools"] = [self._convert_tool_to_schema(tool) for tool in tools] @@ -2021,6 +2122,10 @@ async def acall( async def _make_call(): raw_response = await _collect_async(await _litellm_acompletion(api_params)) + if _map_completion_finish_reason(raw_response) == "insufficient_system_resource": + raise InsufficientSystemResourceError( + "provider interrupted inference: insufficient_system_resource" + ) reasoning, _ = _extract_reasoning_and_usage(raw_response) text_content = raw_response.choices[0].message.content or "" # type: ignore[union-attr] @@ -2039,6 +2144,7 @@ async def _make_call(): ) reasoning, usage = _extract_reasoning_and_usage(raw_response) + self._record_prompt_usage(usage, requested_max_tokens=api_params.get("max_tokens")) if usage: _record_llm_metric("token_usage", usage) _update_token_calibration( diff --git a/tests/agents/test_summarization_agents.py b/tests/agents/test_summarization_agents.py index b35c29b24..761d7e679 100644 --- a/tests/agents/test_summarization_agents.py +++ b/tests/agents/test_summarization_agents.py @@ -212,6 +212,52 @@ def test_should_summarize_over_budget(self, test_agent): ) assert summarizer._should_summarize(event) is True + def test_should_summarize_when_remaining_output_room_drops_below_floor(self, test_agent): + test_agent.runtime._last_prompt_tokens_actual = 820_000 + summarizer = TokenBudgetSummarizer( + test_agent, + config=TokenBudgetConfig( + max_tokens=999_999, + context_window=1_000_000, + output_margin=64_000, + reasoning_output_floor=128_000, + ), + ) + event = AfterTurn( + method_name="test", + strategy="CODEACT", + generation_id="gen-123", + parent_generation_id=None, + turn_number=1, + is_final=False, + success=True, + ) + + assert summarizer._should_summarize(event) is True + + def test_does_not_summarize_when_reasoning_floor_still_fits(self, test_agent): + test_agent.runtime._last_prompt_tokens_actual = 700_000 + summarizer = TokenBudgetSummarizer( + test_agent, + config=TokenBudgetConfig( + max_tokens=999_999, + context_window=1_000_000, + output_margin=64_000, + reasoning_output_floor=128_000, + ), + ) + event = AfterTurn( + method_name="test", + strategy="CODEACT", + generation_id="gen-123", + parent_generation_id=None, + turn_number=1, + is_final=False, + success=True, + ) + + assert summarizer._should_summarize(event) is False + def test_should_not_summarize_from_estimate_when_actual_under_budget(self, test_agent): """A local estimate alone does not trigger summarization; actual usage is authoritative.""" from nooa import ContextWindowStats diff --git a/tests/runtime/test_restricted_imports.py b/tests/runtime/test_restricted_imports.py index bd2d53c11..a57e0565d 100644 --- a/tests/runtime/test_restricted_imports.py +++ b/tests/runtime/test_restricted_imports.py @@ -144,8 +144,12 @@ def test_blocked_modules_still_blocked_with_empty_restricted(self, validator): ) # subprocess is in DEFAULT_BLOCKED_MODULES — should still be blocked code = "import subprocess" - with pytest.raises(ValidationError): + with pytest.raises(ValidationError) as exc_info: validator.validate(code, context) + message = str(exc_info.value) + assert "use the `shell` tool for commands" in message + assert "await self.shell.run(...)" in message + assert "your next tool call must retry the command" in message def test_default_config_allows_os(self, validator): """With default RestrictionsConfig (empty deny list), 'os' is allowed.""" diff --git a/tests/strategies/test_codeact_max_tokens_error.py b/tests/strategies/test_codeact_max_tokens_error.py index 58bf8c497..323779fbe 100644 --- a/tests/strategies/test_codeact_max_tokens_error.py +++ b/tests/strategies/test_codeact_max_tokens_error.py @@ -98,3 +98,24 @@ def _ret(val, cid="c2"): agent_instance = TestAgent(llm=fake_llm) result = await agent_instance.my_task() assert result == "hello" + + @pytest.mark.asyncio + @pytest.mark.parametrize("finish_reason", ["content_filter", "error", "unknown"]) + async def test_terminal_faults_fail_closed_even_when_text_is_present(self, finish_reason): + class TestAgent(Agent, llm=_TEST_LLM): + @strategy(CodeActStrategy(config=CodeActConfig(max_retries=3, max_iterations=10))) + async def my_task(self) -> str: + """A task.""" + ... + + fake_llm = FakeLLMClient( + scripted_responses=[ + _resp("partial text must not be accepted", finish_reason=finish_reason) + ] + ) + agent_instance = TestAgent(llm=fake_llm) + + with pytest.raises(GenerationError, match=finish_reason): + await agent_instance.my_task() + + assert fake_llm.call_count == 1 diff --git a/tests/strategies/test_codeact_strategy.py b/tests/strategies/test_codeact_strategy.py index 7ffdb984d..397247424 100644 --- a/tests/strategies/test_codeact_strategy.py +++ b/tests/strategies/test_codeact_strategy.py @@ -258,6 +258,43 @@ async def compute(self) -> int: ) assert replayed_tool_call["reasoning_items"] == [reasoning_item] + @pytest.mark.asyncio + async def test_reasoning_content_replayed_with_tool_call_history(self): + """Hosted Chat Completions reasoning state survives the CodeAct event pipeline.""" + + class TestAgent(Agent, llm=_TEST_LLM): + async def compute(self) -> int: + """Compute a value.""" + ... + + first_response = _resp( + "", tool_calls=[_tool_call("value = 42\nprint(value)", call_id="call_deepseek")] + ) + first_response.assistant_message["reasoning_content"] = "private chain state" + fake_llm = FakeLLMClient( + scripted_responses=[ + first_response, + _resp("", tool_calls=[_return_result(result=42)]), + ] + ) + + agent_instance = TestAgent(llm=fake_llm) + result = await agent_instance.compute() + + assert result == 42 + tool_call_event = next( + event + for event in agent_instance.event_manager.values() + if event.event_type == "ToolCallEvent" and event.tool_call_id == "call_deepseek" + ) + assert tool_call_event.reasoning_content == "private chain state" + replayed_tool_call = next( + message + for message in fake_llm.last_messages + if message.get("role") == "assistant" and message.get("tool_calls") + ) + assert replayed_tool_call["reasoning_content"] == "private chain state" + @pytest.mark.asyncio async def test_multiple_tool_calls_then_result(self): """LLM calling execute_python multiple times before return_result.""" diff --git a/tests/unifiedllm/test_dynamic_output_budget.py b/tests/unifiedllm/test_dynamic_output_budget.py new file mode 100644 index 000000000..ffe16e864 --- /dev/null +++ b/tests/unifiedllm/test_dynamic_output_budget.py @@ -0,0 +1,93 @@ +# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved. +# SPDX-License-Identifier: Apache-2.0 + +import json +from unittest.mock import patch + +import litellm + +from nooa.unifiedllm import CompletionClient + + +def _response(prompt_tokens: int) -> litellm.ModelResponse: + return litellm.ModelResponse( + model="test-model", + choices=[ + litellm.Choices( + message=litellm.Message(role="assistant", content="done"), + index=0, + finish_reason="stop", + ) + ], + usage={ + "prompt_tokens": prompt_tokens, + "completion_tokens": 1, + "total_tokens": prompt_tokens + 1, + }, + ) + + +def test_output_budget_uses_previous_provider_prompt_usage(tmp_path) -> None: + usage_log = tmp_path / "llm_usage.jsonl" + client = CompletionClient( + model="test-model", + context_window=1_000_000, + max_tokens=384_000, + output_token_margin=64_000, + usage_log_path=str(usage_log), + ) + try: + with patch( + "litellm.completion", side_effect=[_response(700_000), _response(710_000)] + ) as completion: + client.call([{"role": "user", "content": "first"}]) + client.call([{"role": "user", "content": "second"}]) + + assert completion.call_args_list[0].kwargs["max_tokens"] == 384_000 + assert completion.call_args_list[1].kwargs["max_tokens"] == 236_000 + records = [json.loads(line) for line in usage_log.read_text().splitlines()] + assert [record["prompt_tokens"] for record in records] == [700_000, 710_000] + assert [record["requested_max_tokens"] for record in records] == [384_000, 236_000] + finally: + client.close() + + +def test_budget_controls_are_not_forwarded_to_provider(tmp_path) -> None: + client = CompletionClient( + model="test-model", + context_window=1_000_000, + max_tokens=384_000, + output_token_margin=64_000, + reasoning_output_floor=128_000, + usage_log_path=str(tmp_path / "usage.jsonl"), + ) + try: + with patch("litellm.completion", return_value=_response(10)) as completion: + client.call([{"role": "user", "content": "hello"}]) + + kwargs = completion.call_args.kwargs + assert "output_token_margin" not in kwargs + assert "reasoning_output_floor" not in kwargs + assert "usage_log_path" not in kwargs + finally: + client.close() + + +def test_usage_log_records_endpoint_and_reasoning_effort(tmp_path) -> None: + usage_log = tmp_path / "usage.jsonl" + client = CompletionClient( + model="test-model", + api_base="https://api.example.test/v1", + max_tokens=384_000, + reasoning_effort="max", + usage_log_path=str(usage_log), + ) + try: + with patch("litellm.completion", return_value=_response(10)): + client.call([{"role": "user", "content": "hello"}]) + + record = json.loads(usage_log.read_text()) + assert record["endpoint"] == "https://api.example.test/v1" + assert record["reasoning_effort"] == "max" + finally: + client.close() diff --git a/tests/unifiedllm/test_finish_reason_propagation.py b/tests/unifiedllm/test_finish_reason_propagation.py index 2ef459214..668fd21f6 100644 --- a/tests/unifiedllm/test_finish_reason_propagation.py +++ b/tests/unifiedllm/test_finish_reason_propagation.py @@ -19,7 +19,7 @@ from nooa.config import CodeActConfig from nooa.errors import GenerationError from nooa.strategies.codeact import CodeActStrategy -from nooa.unifiedllm import CompletionClient, ResponsesClient +from nooa.unifiedllm import CompletionClient, ResponsesClient, RetryConfig from nooa.unifiedllm.unifiedllm import ( _map_completion_finish_reason, _map_responses_finish_reason, @@ -60,19 +60,33 @@ class TestMapCompletionFinishReason: ("stop", "stop"), ("length", "length"), ("tool_calls", "tool_calls"), - ("content_filter", "error"), + ("content_filter", "content_filter"), + ("insufficient_system_resource", "insufficient_system_resource"), ("error", "error"), - (None, "stop"), - ("something_new", "stop"), + (None, "unknown"), + ("something_new", "unknown"), ], ) def test_mapping(self, raw, expected): resp = SimpleNamespace(choices=[SimpleNamespace(finish_reason=raw)]) assert _map_completion_finish_reason(resp) == expected - def test_malformed_response_defaults_to_stop(self): - assert _map_completion_finish_reason(SimpleNamespace()) == "stop" - assert _map_completion_finish_reason(None) == "stop" + def test_malformed_response_fails_closed(self): + assert _map_completion_finish_reason(SimpleNamespace()) == "unknown" + assert _map_completion_finish_reason(None) == "unknown" + + def test_native_finish_reason_wins_over_litellm_normalization(self): + choice = litellm.Choices( + message=litellm.Message(content="partial", role="assistant"), + index=0, + finish_reason="insufficient_system_resource", + ) + assert choice.finish_reason == "stop" + assert choice.provider_specific_fields == { + "native_finish_reason": "insufficient_system_resource" + } + response = litellm.ModelResponse(choices=[choice], model="test-model") + assert _map_completion_finish_reason(response) == "insufficient_system_resource" class TestMapResponsesFinishReason: @@ -95,19 +109,19 @@ def test_incomplete_dict_details_maps_to_length(self): ) assert _map_responses_finish_reason(resp) == "length" - def test_incomplete_other_reason_maps_to_error(self): + def test_incomplete_content_filter_is_explicit(self): resp = SimpleNamespace( status="incomplete", incomplete_details=SimpleNamespace(reason="content_filter"), ) - assert _map_responses_finish_reason(resp) == "error" + assert _map_responses_finish_reason(resp) == "content_filter" def test_failed_maps_to_error(self): resp = SimpleNamespace(status="failed", incomplete_details=None) assert _map_responses_finish_reason(resp) == "error" - def test_missing_status_defaults_to_stop(self): - assert _map_responses_finish_reason(SimpleNamespace()) == "stop" + def test_missing_status_fails_closed(self): + assert _map_responses_finish_reason(SimpleNamespace()) == "unknown" class TestCompletionClientPropagation: @@ -130,17 +144,49 @@ async def test_async_length_propagates(self, client): out = await client.acall([{"role": "user", "content": "Hi"}]) assert out.finish_reason == "length" + @pytest.mark.asyncio + async def test_insufficient_resource_retries_identical_request_without_leaking_partial(self): + interrupted = make_mock_response( + content="partial", + reasoning="discard me", + tool_calls=[make_tool_call("partial_call", "do_thing", '{"unsafe":true}')], + ) + interrupted.choices[0].finish_reason = "insufficient_system_resource" + completed = make_mock_response(content="done", finish_reason="stop") + client = CompletionClient( + model="test-model", + retry_config=RetryConfig(max_retries=1, base_delay=0, jitter_factor=0), + ) + with patch( + "litellm.acompletion", + new_callable=AsyncMock, + side_effect=[interrupted, completed], + ) as mock_acompletion: + out = await client.acall( + [{"role": "user", "content": "Hi"}], + tools=[], + ) + + assert out.finish_reason == "stop" + assert out.content == "done" + assert out.reasoning is None + assert out.tool_calls == [] + assert mock_acompletion.call_count == 2 + assert ( + mock_acompletion.call_args_list[0].kwargs == mock_acompletion.call_args_list[1].kwargs + ) + def test_sync_stop_stays_stop(self, client): resp = make_mock_response(content="done", finish_reason="stop") with patch("litellm.completion", return_value=resp): out = client.call([{"role": "user", "content": "Hi"}]) assert out.finish_reason == "stop" - def test_content_filter_maps_to_error(self, client): + def test_content_filter_is_preserved(self, client): resp = make_mock_response(content="", finish_reason="content_filter") with patch("litellm.completion", return_value=resp): out = client.call([{"role": "user", "content": "Hi"}]) - assert out.finish_reason == "error" + assert out.finish_reason == "content_filter" def test_tool_calls_preserved_even_if_provider_reports_length(self, client): # When tool calls are present the client keeps "tool_calls" regardless of diff --git a/tests/unifiedllm/test_litellm_responses_bridge.py b/tests/unifiedllm/test_litellm_responses_bridge.py index 596034b4e..c0a2b33ee 100644 --- a/tests/unifiedllm/test_litellm_responses_bridge.py +++ b/tests/unifiedllm/test_litellm_responses_bridge.py @@ -181,3 +181,58 @@ def test_reasoning_items_round_trip_into_next_responses_request() -> None: assert reasoning_index < function_call_index < output_index finally: client.close() + + +def test_deepseek_reasoning_content_round_trips_into_next_chat_request() -> None: + client = CompletionClient( + model="deepseek/deepseek-chat", + api_base="https://api.deepseek.com/v1", + api_key="test", + ) + tool_call = { + "id": "call_deepseek", + "type": "function", + "function": {"name": "execute_python", "arguments": '{"code":"print(1)"}'}, + } + first_response = ModelResponse( + model="deepseek-chat", + choices=[ + Choices( + finish_reason="tool_calls", + message=Message( + content=None, + role="assistant", + tool_calls=[tool_call], + reasoning_content="private chain state", + ), + ) + ], + ) + second_response = _chat_response() + + try: + with patch( + "litellm.completion", side_effect=[first_response, second_response] + ) as completion: + first = client.call( + messages=[{"role": "user", "content": "Run Python."}], + tools=[TOOL], + ) + client.call( + messages=[ + {"role": "user", "content": "Run Python."}, + first.assistant_message, + { + "role": "tool", + "tool_call_id": first.tool_calls[0].id, + "content": "1", + }, + ], + tools=[TOOL], + ) + + replayed = completion.call_args_list[1].kwargs["messages"][1] + assert replayed["reasoning_content"] == "private chain state" + assert replayed["tool_calls"][0]["id"] == "call_deepseek" + finally: + client.close()