Phases 2–5 analysis complete. Let me record the reasoning.

**Phase 2–3 (drift):** fn-82.2 is pure Class-1 archaeology — deletion of `fn-NN` provenance tags, relocation of dead spike-harness prose to `agent_docs/tracker-sync-spikes.md`, removal of qa's fn-53 scaffolding + the transient `proof-receipt.json` write, and present-tensing map/memory-migrate. Spec + done_summary both confirm **no behavior, no name/API/data-structure changes** — canonical prose files only. There is no implementation-level identifier for a downstream task to have gone stale against.

**Phase 4 (downstream tasks):** Read .3, .4, .5 in full. Zero file overlap with fn-82.2's touched set (tracker-sync / qa / map / memory-migrate), and none reference anything fn-82.2 created or removed (no mention of `tracker-sync-spikes.md`, `proof-receipt.json`, or any stripped tag). fn-82.5's R12 token table *pins* `tracker-sync SKILL.md+steps.md` and `qa SKILL.md+workflow.md` — but that's the task's designed measurement of fn-82.2's reduction, not stale drift.

**Traceability table:** Coverage table already matches reality — R5 → fn-82.2, R6 → fn-82.2 (qa/map/mm) + fn-82.3 (audit line refs). fn-82.2's scope landed exactly as the table records. No row update needed.

**Phase 3b:** Glossary — all 38 entries have empty `avoid` lists, no rename candidates. Decisions (2) — neither names a file fn-82.2 touched; the tracker-sync-projection decision is *reinforced* (fn-66 "a real merge is the sole Done driver" rewrite matches its Consequences), not contradicted. Strategy — pure prompt-weight archaeology serves the Ralph/Cross-platform/Self-improving tracks (as the spec's own Strategy Alignment states); no track rename, no contradiction.

---

Drift detected: no

- fn-82.2 was pure Class-1 archaeology (canonical prose only): stripped ~90 `fn-NN` provenance tags from tracker-sync `SKILL.md`/`steps.md` (sole survivor `fn-42-foo`, a listing example), relocated linear/github/gitlab spike harnesses to `agent_docs/tracker-sync-spikes.md`, removed qa's fn-53 ownership/OWNER/skeleton prose + the `proof-receipt.json` write, present-tensed map/memory-migrate. No names, APIs, data structures, or integration points changed — nothing for a downstream task to reference stale.

Would update (DRY RUN):
- (none) — downstream tasks fn-82.3, fn-82.4, fn-82.5 have no file overlap with fn-82.2's touched set and reference none of its removed/relocated artifacts.

Would update traceability:
- (none) — `## Requirement coverage` already accurate: R5 → fn-82.2; R6 → fn-82.2 (qa/map/mm) + fn-82.3 (audit line refs). fn-82.2 landed exactly as recorded.

Decision overrides flagged for review:
- (none) — decision `factory-droid-platform-status` names only capture/make-pr/setup/interview/plan/platforms files (untouched by fn-82.2); decision `tracker-sync-is-projection-not-coordination` is reinforced, not contradicted (the fn-66 "a real merge is the sole Done driver" prose rewrite agrees with its Consequences).

Strategy drift flagged for review:
- (none) — prompt-weight archaeology advances the Ralph autonomous mode / Cross-platform parity / Self-improving tracks; no track rename or contradiction against `approach`.

No files modified (DRY_RUN=true; no drift found regardless).