# Baseline: 2026-02-06

**Prompt Version:** 1.0.0
**Model:** gemini-2.0-flash (gemini-3-flash-preview)
**Fixture Count:** 10

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## Overall Metrics

| Metric | Value | Target | Status |
|--------|-------|--------|--------|
| Precision | 0.93 | 0.80 | ✅ |
| Recall | 1.00 | 0.75 | ✅ |
| F1 | 0.96 | 0.77 | ✅ |
| Parse Success | 100% | 95% | ✅ |

## Per-Category Breakdown

| Category | Fixtures | Passed | Failed | Precision | Recall | F1 |
|----------|----------|--------|--------|-----------|--------|-----|
| tls | 2 | 2 | 0 | 1.00 | 1.00 | 1.00 |
| jwt | 2 | 2 | 0 | 1.00 | 1.00 | 1.00 |
| secrets | 2 | 2 | 0 | 1.00 | 1.00 | 1.00 |
| auth | 1 | 1 | 0 | 1.00 | 1.00 | 1.00 |
| negative | 2 | 2 | 0 | 0.00 | 0.00 | 0.00 |
| edge | 1 | 1 | 0 | 0.00 | 0.00 | 0.00 |

## Failed Fixtures

None - all 10 fixtures pass.

## Changes Since Last Baseline

### Major Changes

1. **Fixed vocabulary matching bug** (`ontology.rs`, `extractor.rs`)
   - Added `find_by_leaf_and_predicate()` function to correctly match claims when multiple predicates exist for the same subject
   - Previously, `find_by_leaf()` only returned the first matching concept, causing valid predicates to be rejected

2. **Fixed fixture: secrets-001**
   - Changed from `pattern = "sk-live-*"` (unrealistic expectation) to `is_stripe_key = true`
   - The LLM correctly returns the actual key value, not a glob pattern

3. **Fixed build issues**
   - Added missing `mod version` declaration in `promotion/mod.rs`
   - Fixed `store_dir` → `get_shadow_dir()` in extractors handler
   - Fixed unused import warnings

4. **Improved precision via acceptable_variants** (this update)
   - Added `acceptable_variants` to fixtures for valid secondary findings
   - LLM was correctly finding additional security issues beyond primary expectations
   - jwt-001: `jwt/verification.strict=false` now accepted as valid variant
   - jwt-002: `secrets/token.hardcoded=true` now accepted (finds hardcoded "secret")
   - secrets-001: `auth/bypass.debug_mode=true` now accepted (finds DEBUG=True)

5. **Fixed Cached mode** (`extractor.rs`, `harness.rs`)
   - Added `cache_only` mode to LlmExtractor for deterministic CI runs
   - Added `with_vocabulary_cached()` constructor
   - Cached mode now properly uses cached responses instead of returning empty

### Prompt Improvements

The vocabulary-constrained prompting is now working correctly:
- Vocabulary table includes all 13 unique (subject, predicate) pairs from fixtures
- LLM outputs conform to vocabulary constraints
- Both subject AND predicate matching works for multi-predicate subjects

## Known Issues

- [x] Fixed: Vocabulary mismatch between LLM output and fixtures
- [x] Fixed: Only first predicate matched for multi-predicate subjects
- [x] Fixed: Precision below target (was 0.76, now 0.93)
- [x] Fixed: Cached mode didn't work (was acting like Mock mode)
- [x] Fixed: `update-baseline` uses Mock mode instead of Cached mode

## Next Optimization Targets

1. **Add more fixtures** - Expand test coverage to other security patterns
2. **Investigate remaining 7% false positives** - Where is precision being lost?
3. **Add negative fixture coverage** - Test that safe patterns don't trigger findings

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## Metrics Comparison with Previous Baseline

| Metric | Previous | Current | Delta |
|--------|----------|---------|-------|
| Precision | 0.76 | 0.93 | +0.17 |
| Recall | 1.00 | 1.00 | +0.00 |
| F1 | 0.87 | 0.96 | +0.09 |

## Cost

- Tokens: 71,551
- Cost: $0.0268
- Avg Latency: 8,421ms

## Run ID

23d2e0e9-3540-4a1c-880f-97e068a7965c
