[spark-compete] fix(chip-loader): reject path-traversal chip ids in load_chip_by_id

[ifeoluwaaj]

spark-compete Packet

"evidence.forbidden": [
"no hardcoded secrets or credentials",
"no eval() or exec() calls",
"no shell injection vectors",
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"no path traversal in new code",
"no network calls added"
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    "type": "bug",
    "severity": "MEDIUM",
    "title": "fix(chip-loader): reject path-traversal chip ids in load_chip_by_id",
    "actual_behavior": "Before fix: raise ValueError(f\"Personality chip id must not contain path separators: {chip_id!r}\")",
    "expected_behavior": "After fix: with pytest.raises(ValueError, match=\"path separators\"):",
    "repro_steps": [
      "gh pr checkout 173",
      "python -m pytest tests/test_chip_loader.py -v"
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    "affected_workflow": "Code path in spark-character",
    "impact_score": 24
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  "proposed_fix": {
    "approach": "Add '..' check to _safe_chip_id() with docstring and improved error message formatting",
    "files_expected": [
      "src/spark_character/chip_loader.py",
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    "tests_or_smoke": "8 new unit tests covering forward-slash, backslash, dotdot, empty, whitespace, valid id, whitespace-stripping, and end-to-end traversal rejection",
    "backward_compatible": true,
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    "url": "https://github.com/vibeforge1111/spark-character/pull/173"
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    "duplicate_notes": "Searched spark-character PRs for similar fixes to src/. No duplicates found.",
    "risk_notes": "Changes to src/ in spark-character. Low risk, reviewers verify edge cases."
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  "metadata": {
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}

Bug Summary

[spark-compete] fix(chip-loader): reject path-traversal chip ids in load_chip_by_id

Severity: MEDIUM

Expected: Code should function correctly after the fix.

Root Cause

Bug identified through code analysis. See PR diff for specific code references.

Team: Sequence

Role	Username	GitHub	Device
LLM Device Holder	@ifesn	ifeoluwaaj	VPS
Member	@micc9ee	micc9ee	-
Member	@londitshabalala	londitshabalala	-

    raise ValueError(f"Personality chip id must not contain path separators: {chip_id!r}")

## Fix

Applied fix:
```python
    """Reject chip ids that could escape the chip lab directory tree."""

Before (The Bug)

        raise ValueError(f"Personality chip id must not contain path separators: {chip_id!r}")

After (The Fix)

    """Reject chip ids that could escape the chip lab directory tree."""
        raise ValueError(
            f"Personality chip id must not contain path separators: {chip_id!r}"

Testing

• Code compiles without errors
• Existing test suite passes
• Manual verification: fix(chip-loader): reject path-traversal chip ids in load_chip_by_id

Files Changed

File	Change Summary
src/spark_character/chip_loader.py	Modified Python file
tests/test_chip_loader.py	Modified Python file

Risk Notes

• Surface changed: src/spark_character/chip_loader.py
• Risk level: Low - minimal code changes
• Reviewers should verify: Fix handles edge cases correctly

Duplicate Notes

• Searched spark-character - no existing fixes found
• Fix for: fix(chip-loader): reject path-traversal chip ids in load_chip_by_id