# Routing Behavior Diff Audit

Source Skill for deterministic before/after routing result comparison.

The canonical entry point is `SKILL.md`; the deterministic diff engine is in `scripts/routing_behavior_diff_audit.py`.

## Original Source

```text
Original source: C:\Users\wangq\Documents\Codex\ccpe-system\requirements\skills-vault\2026-06-19-routing-behavior-diff-audit.md
Migration date: 2026-06-19
Migration status: first public Skill implementation
Behavior preserved: deterministic routing-result diff only; no selector edits, expected-label updates, or patch-closure judgment
Known gaps: Markdown support is limited to fenced JSON/YAML blocks; product-specific meaning remains outside this Skill
```

## Layout

```text
SKILL.md
README.md
agents/openai.yaml
fixtures/before.example.json
fixtures/after.example.json
scripts/routing_behavior_diff_audit.py
tests/test_routing_behavior_diff_audit.py
```

## Usage

```powershell
conda run -n skills-vault python .\scripts\routing_behavior_diff_audit.py `
  --before-results C:\path\before.json `
  --after-results C:\path\after.json `
  --output-dir C:\path\helper-outputs `
  --targeted-case CASE-001
```

## Tests

```powershell
conda run -n skills-vault python -B -m unittest discover -s skills/routing-behavior-diff-audit/tests -v
```