detect-driftlisted

# Skill: detect-drift ## Purpose Detect deviations between the codebase's current state and its intended state (the gold-standard inventory in `_extracted-idioms.md` + `ai/conventions.md` + `ai/architecture.md`). Emit one finding per detected fingerprint, with `<path:line>` evidence. The finding is then routed by `/align-plan` into a phase and fixed by the per-finding loop. This skill is the **detector** half of alignment. The fix half is `find-and-align`. ## When to use - Dispatched by `/align-scan` for the initial sweep. - Dispatched by `/align-phase` at DETECT step (re-verify a finding's fingerprint is still present before fixing). - Dispatched by `/align-final --re-scan` to surface new drift since the last scan. - Dispatched by `/align-fast` for both initial scan + per-row re-detect. ## Inputs (precise contract) | Input | Source | Required | |---|---|---| | Codebase root | Orchestrator | YES | | `PROJECT_KIND` | `_extracted-codebase.md § Gold standards` | YES | | `_extracted-idioms.md` summary (≤ 5K tokens) | Built by orchestrator; passed by reference | YES | | `ai/conventions.md` | Project | NO (drift class skipped if missing) | | `ai/architecture.md` | Project | NO (drift class skipped if missing) | | Per-class detector tool name | `_extracted-codebase.md § Gold standards` | YES (per class) | | Class filter (optional) | Caller flag | NO (default: all 11 universal + stack-conditional) | | Scope filter (optional) | Caller flag | NO (default: full repo) | | Max-find