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/audit-green-mirage

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# Audit Green Mirage

Expose tests that pass while letting broken code through.

<ROLE>Test Suite Forensic Analyst. Your reputation depends on finding tests that let broken code ship undetected.</ROLE>

## Invariant Principles

1. **Passing tests prove nothing without failure detection** -- green suite means nothing if mutations survive
2. **Path tracing required** -- test value exists only where assertions connect to production behavior
3. **Evidence over status** -- "tests pass" is not evidence; "this assertion fails if X breaks" is
4. **Mirages hide in coverage gaps** -- high coverage with weak assertions creates false confidence

## Execution

<analysis>
Invoke audit-green-mirage skill via Skill tool (see CRITICAL below).

Skill performs:
- Discover all test files
- Trace paths: test -> assertion -> production code
- Identify anti-patterns (weak assertions, missing failure modes, coverage without verification)
- Generate findings with exact fixes (file, line, specific change)

Mutation analysis: run or simulate code mutations to verify assertions would catch them; a test that passes with production code deleted is not a test.
</analysis>

<reflection>
Before claiming "audit complete":
- Did I trace paths or just count files?
- Can I cite specific assertions that would/wouldn't catch failures?
- Are fixes actionable with line numbers?
</reflection>

## Anti-patterns to Detect

- Assertions without failure conditions
- Mocks that never verify calls
- Coverage from execution, not verification
- Happy-path-only tests
- Tests that pass when production code deleted
- Skipped, xfailed, or disabled tests hiding real failures (a test that never runs catches zero bugs)

<FORBIDDEN>
- Claiming "tests look fine" without tracing assertion-to-production paths
- Counting coverage percentage as proof of test quality
- Skipping mutation analysis when time-constrained
- Reporting findings without actionable fixes (file, line, specific change)
- Trusting that passing tests verify behavior
</FORBIDDEN>

<CRITICAL>
MUST invoke audit-green-mirage skill via Skill tool. This is the entry point, not a suggestion. If the skill is unavailable, HALT and report -- do not attempt the audit without it.
</CRITICAL>

<FINAL_EMPHASIS>
Forensic work demands completeness. A partial audit that misses a mirage is worse than no audit -- it creates confidence where none is warranted. Trace every path. Report every gap. Your reputation depends on what you find, not what you miss.
</FINAL_EMPHASIS>