NVIDIA-NeMo · stefan-kickoff · Sep 8, 2026
@@ -67,6 +67,18 @@ plugins/nemo-agents/vendor/codex_agent_adapter/
   its own LICENSE.md in:
     plugins/nemo-agents/vendor/codex_agent_adapter/
 
+--------------------------------------------------------------------------------
+plugins/nemo-prompt-master/src/nemo_prompt_master_plugin/skills/prompt-master/
+  Prompt Master v1.8.0 vendored snapshot at commit
+  2bd92518e26bf659e21e3d9ab90573fcf3ddeccb
+  Copyright (c) 2026 Nidhin Joseph Nelson
+  Home: https://github.com/nidhinjs/prompt-master
+  License: MIT
+
+  The `nemo-prompt-master` plugin vendors the upstream skill and reference
+  files without modification. The vendored snapshot retains its own LICENSE
+  and provenance in the skill directory.
+
 --------------------------------------------------------------------------------
 services/guardrails/callouts/internal/server/
   callout_server.go and callout_server_test.go

@@ -177,11 +177,13 @@ nemo agents evaluate \
 ```bash
 BUNDLE="$(pwd)/plugins/nemo-agents/examples/calculator-agent/src/calculator_agent"
 nemo agents optimize prepare-fileset \
+  --strategy hpo \
   --source "$BUNDLE" \
   --optimize-config calculator-optimize.yml \
   --fileset calculator-optimize \
   --agent calculator-agent
 nemo agents optimize \
+  --strategy hpo \
   --optimize-config-fileset default/calculator-optimize \
   --optimize-config calculator-optimize.yml \
   --agent calculator-agent

@@ -453,6 +453,16 @@ nemo-platform-sdk = [
   "sniffio",
 ]
 
+# Generated from [tool.bundle-package]; do not edit by hand.
+nemo-prompt-master-plugin = [
+  "nemo-agents-plugin",
+  "nemo-optimization-plugin",
+  "nemo-platform-plugin",
+  "pydantic>=2.12.0",
+  "pyyaml>=6.0.3",
+  "typer>=0.20.0",
+]
+
 # Generated from [tool.bundle-package]; do not edit by hand.
 nemo-rl-plugin = [
   "nemo-platform-plugin",
@@ -561,6 +571,7 @@ plugins = [
     "nemo-platform[nemo-guardrails-plugin]",
     "nemo-platform[nemo-insights-plugin]",
     "nemo-platform[nemo-optimization-plugin]",
+    "nemo-platform[nemo-prompt-master-plugin]",
     "nemo-platform[nemo-rl-plugin]",
     "nemo-platform[nemo-safe-synthesizer-plugin]",
     "nemo-platform[nemo-switchyard]",
@@ -745,6 +756,10 @@ nemo-switchyard = "nemo_switchyard.middleware:SwitchyardMiddleware"
 optuna = "nemo_optimization.backends.optuna.backend:OptunaBackend"
 ga = "nemo_optimization.backends.ga.backend:GaBackend"
 
+# Generated from [tool.bundle-package]; do not edit this table by hand.
+[project.entry-points."nemo.optimization.strategies"]
+prompt-master = "nemo_prompt_master_plugin.strategy:PromptMasterStrategy"
+
 # Generated from [tool.bundle-package]; do not edit this table by hand.
 [project.entry-points."nemo.sandbox_profiles"]
 openshell = "nemo_deployments_plugin.backends.openshell.sandbox_profile:PROFILE"
@@ -794,6 +809,7 @@ experimentalist = "nemo_experimentalist_plugin.skills:skills_dir"
 insights = "nemo_insights_plugin.skills:skills_dir"
 deployments = "nemo_deployments_plugin.skills:skills_dir"
 customizer = "nemo_customizer.skills:get_skills_path"
+prompt-master = "nemo_prompt_master_plugin.skills:skills_dir"
 
 [tool.uv.sources]
 nemo-platform-sdk = { workspace = true }
@@ -849,6 +865,7 @@ switchyard-vendored = { source = "../../plugins/nemo-switchyard/vendor/switchyar
 
 # Default first-party plugins
 nemo-agents-plugin = { source = "../../plugins/nemo-agents/src/nemo_agents_plugin", module = "nemo_agents_plugin", inherit = { "entry-points" = ["nemo.*", "nat.plugins", "nat.components"] }, force_include = { "../../vendor/claude_code_agent_adapter/src/nat_claude_code_agent_adapter" = "nat_claude_code_agent_adapter", "../../vendor/codex_agent_adapter/src/nat_codex_agent_adapter" = "nat_codex_agent_adapter", "../../vendor/cursor_agent_adapter/src/nat_cursor_agent_adapter" = "nat_cursor_agent_adapter", "../../vendor/hermes_agent_adapter/src/nat_hermes_agent_adapter" = "nat_hermes_agent_adapter", "../../vendor/openclaw_agent_adapter/src/nat_openclaw_agent_adapter" = "nat_openclaw_agent_adapter" } }
+nemo-prompt-master-plugin = { source = "../../plugins/nemo-prompt-master/src/nemo_prompt_master_plugin", module = "nemo_prompt_master_plugin", inherit = { "entry-points" = ["nemo.*"] } }
 nemo-anonymizer-plugin = { source = "../../plugins/nemo-anonymizer/src/nemo_anonymizer_plugin", module = "nemo_anonymizer_plugin", inherit = { "entry-points" = ["nemo.*"] } }
 nemo-auditor-plugin = { source = "../../plugins/nemo-auditor/src/nemo_auditor", module = "nemo_auditor", inherit = { "entry-points" = ["nemo.*"] } }
 # Customization router plus its backend contributors. Heavy ML stacks stay in the

@@ -12,11 +12,13 @@
 # Usage:
 #
 #   nemo agents optimize prepare-fileset \
+#       --strategy hpo \
 #       --source plugins/nemo-agents/examples/calculator-agent/src/calculator_agent \
 #       --optimize-config calculator-optimize.yml \
 #       --fileset calculator-optimize
 #
 #   nemo agents optimize \
+#       --strategy hpo \
 #       --optimize-config-fileset default/calculator-optimize \
 #       --optimize-config calculator-optimize.yml \
 #       --agent calculator-agent

@@ -12,11 +12,13 @@
 # Usage:
 #
 #   nemo agents optimize prepare-fileset \
+#       --strategy hpo \
 #       --source plugins/nemo-agents/examples/react-agent \
 #       --optimize-config react-optimize.yml \
 #       --fileset react-optimize
 #
 #   nemo agents optimize \
+#       --strategy hpo \
 #       --optimize-config-fileset default/react-optimize \
 #       --optimize-config react-optimize.yml \
 #       --agent react-agent

@@ -324,6 +324,8 @@ def _replace_flat_job_command_with_group(
     def submit(typer_ctx: typer.Context, **kwargs: object) -> None:
         if typer_ctx.invoked_subcommand is not None:
             return
+        if _run_local_prompt_master(job_cls, kwargs):
+            return
         original(typer_ctx, **kwargs)
 
     submit.__doc__ = getattr(original, "__doc__", None)
@@ -336,6 +338,59 @@ def submit(typer_ctx: typer.Context, **kwargs: object) -> None:
     app.add_typer(job_group, name=job_cls.name, rich_help_panel="Jobs")
 
 
+def _run_local_prompt_master(job_cls: type[NemoJob], kwargs: dict[str, object]) -> bool:
+    """Run Prompt Master in-process when ``--agent`` names a local YAML file."""
+    if kwargs.get("strategy") != "prompt-master":
+        return False
+
+    agent = kwargs.get("agent")
+    if not isinstance(agent, str):
+        return False
+    agent_path = Path(agent).expanduser()
+    if not agent_path.is_file():
+        if agent_path.suffix.lower() in {".yaml", ".yml"}:
+            typer.echo(f"Error: local agent config does not exist: {agent_path}", err=True)
+            raise typer.Exit(code=2)
+        return False
+
+    optimize_config = kwargs.get("optimize_config")
+    output = kwargs.get("output")
+    if not isinstance(optimize_config, str):
+        typer.echo("Error: local prompt-master requires --optimize-config.", err=True)
+        raise typer.Exit(code=2)
+    if not Path(optimize_config).expanduser().is_file():
+        typer.echo(f"Error: prompt-master config does not exist: {optimize_config}", err=True)
+        raise typer.Exit(code=2)
+    if not isinstance(output, str) or Path(output).suffix.lower() not in {".yaml", ".yml"}:
+        typer.echo("Error: local prompt-master requires --output ending in .yaml or .yml.", err=True)
+        raise typer.Exit(code=2)
+    if kwargs.get("optimize_config_fileset") is not None:
+        typer.echo("Error: local prompt-master cannot use --optimize-config-fileset.", err=True)
+        raise typer.Exit(code=2)
+
+    from nemo_platform_plugin.scheduler import NemoJobScheduler
+
+    workspace = kwargs.get("workspace")
+    local_spec = {
+        "strategy": "prompt-master",
+        "agent": str(agent_path),
+        "optimize_config": str(Path(optimize_config).expanduser()),
+        "output": output,
+        "workspace": workspace if isinstance(workspace, str) else "default",
+    }
+    try:
+        result = NemoJobScheduler().run_local(
+            job_cls,
+            local_spec,
+            workspace=local_spec["workspace"],
+        )
+    except (OSError, RuntimeError, ValueError) as exc:
+        typer.echo(f"Error: local prompt-master failed: {exc}", err=True)
+        raise typer.Exit(code=2) from exc
+    typer.echo(json.dumps(result, indent=2))
+    return True
+
+
 # ---------------------------------------------------------------------------
 # Local commands — no platform required
 # ---------------------------------------------------------------------------

@@ -18,7 +18,7 @@
 
 import logging
 from pathlib import Path
-from typing import Annotated, Any, Optional
+from typing import Annotated, Any, Literal, Optional
 
 import typer
 from nemo_agents_plugin.cli_context import BaseUrlOption, resolve_base_url, resolve_context_headers
@@ -37,6 +37,13 @@ def register_prepare_fileset_command(group: typer.Typer) -> None:
         help="Validate an optimize bundle and upload it to a fileset for `optimize`.",
     )
     def prepare_fileset(
+        strategy: Annotated[
+            Literal["hpo", "prompt-master"],
+            typer.Option(
+                "--strategy",
+                help="Optimization strategy that will consume this bundle.",
+            ),
+        ],
         source: Annotated[
             Path,
             typer.Option(
@@ -67,8 +74,8 @@ def prepare_fileset(
             Optional[str],
             typer.Option(
                 "--agent",
-                help="Platform agent supplying the Agent under Test, for configs that carry only "
-                "the optimizer and eval overlay.",
+                help="Platform agent supplying the target prompt for prompt-master, or the "
+                "Agent under Test for hpo configs that carry only an optimizer/eval overlay.",
             ),
         ] = None,
         check_models: Annotated[
@@ -87,18 +94,19 @@ def prepare_fileset(
         from nemo_optimization.bundle import BundlePreflightError, preflight_bundle
 
         try:
-            config = preflight_bundle(source, optimize_config, agent=agent)
+            config = preflight_bundle(source, optimize_config, strategy=strategy, agent=agent)
         except BundlePreflightError as exc:
             typer.echo(f"Error: {exc}", err=True)
             raise typer.Exit(code=1)
 
         ws, name = split_fileset_ref(fileset, workspace)
-        if dry_run and not check_models:
+        should_check_models = check_models and strategy == "hpo"
+        if dry_run and not should_check_models:
             typer.echo(f"Preflight passed. Would upload {source}/ to fileset {ws}/{name}.")
             return
 
         sdk = _platform_sdk(resolve_base_url(base_url))
-        if check_models:
+        if should_check_models:
             _preflight_models(config, workspace=workspace, agent=agent, sdk=sdk)
         if dry_run:
             typer.echo(f"Preflight passed. Would upload {source}/ to fileset {ws}/{name}.")
@@ -114,6 +122,7 @@ def prepare_fileset(
         typer.echo("Submit the study with:\n")
         typer.echo(
             f"  nemo agents optimize \\\n"
+            f"    --strategy {strategy} \\\n"
             f"    --optimize-config-fileset {ws}/{name} \\\n"
             f"    --optimize-config {optimize_config} \\\n"
             + (f"    --agent {agent} \\\n" if agent else "")

@@ -96,13 +96,16 @@ See **the `nemo-agent-skills-optimization` skill** for the full optimize-skills
 ### 3. Prompt + hyperparameter tuning
 
 If `nemo agents optimize` has not been run for this agent since the last
-snapshot, suggest running it. The job sweeps prompts and hyperparameters via
-`nat optimize` against the agent's eval dataset.
+snapshot, suggest the appropriate required strategy: `hpo` for numeric or
+categorical Fabric parameters, or `prompt-master` for the agent's system
+instructions.
 
 Suggested actions:
 
-- `nemo agents optimize prepare-fileset --source <bundle-dir> --optimize-config <bundle-relative-yaml> --fileset <name>`
-- `nemo agents optimize --agent <name> --optimize-config-fileset <workspace/name> --optimize-config <config-path-in-fileset>`
+- `nemo agents optimize prepare-fileset --strategy hpo --source <bundle-dir> --optimize-config <bundle-relative-yaml> --fileset <name>`
+- `nemo agents optimize --strategy hpo --agent <name> --optimize-config-fileset <workspace/name> --optimize-config <config-path-in-fileset>`
+- For Prompt Master, use `--strategy prompt-master`; `--agent` supplies the
+  source prompt and `--output` receives the optimized Fabric config.
 - After it completes, apply the new prompt + hyperparameters to a sibling
   agent, deploy it, and run `nemo agents evaluate` to compare.
 
@@ -317,8 +320,8 @@ nemo models list --filter.name nemotron   # find Nemotron candidates
 # Optimization commands (see also: nemo-agent-skills-optimization skill).
 # The optimize command's --optimize-config value must be relative to the staged fileset root.
 nemo agents evaluate --agent <name> --eval-config <yaml>
-nemo agents optimize prepare-fileset --source <bundle-dir> --optimize-config <bundle-relative-yaml> --fileset <name>
-nemo agents optimize --agent <name> --optimize-config-fileset <workspace/name> --optimize-config <config-path-in-fileset>
+nemo agents optimize prepare-fileset --strategy hpo --source <bundle-dir> --optimize-config <bundle-relative-yaml> --fileset <name>
+nemo agents optimize --strategy hpo --agent <name> --optimize-config-fileset <workspace/name> --optimize-config <config-path-in-fileset>
 nemo agents optimize-skills --spec-file .agent-improver.yml
 nemo agents evaluate-suite --spec '{"evals": "<dir>", "agent": "<name>"}'