I now have all the facts needed. Let me work through the phases.

**Phase 1 — Re-anchor on fn-9.1**
- Spec/task said: ship `AuthResult` with a **`token`** attribute in `src/auth/result.py`.
- Parent spec (fn-9) Approach: "fn-9.1 ships AuthResult with a `token` field; fn-9.2 persists it in the session manager."
- Done summary: "Renamed the field to `access_token` (OAuth vocabulary) — AuthResult.token no longer exists."
- Evidence commit: `8e3b64f`.

**Phase 2 — Actual implementation** (`src/auth/result.py`): `AuthResult.__init__(self, access_token)` → `self.access_token`. Field is `access_token`, not `token`. Drift confirmed.

**Phase 3 — Drift**

| Aspect | Spec Said | Actually Built |
|--------|-----------|----------------|
| Field name | `AuthResult.token` | `AuthResult.access_token` |

**Phase 3b — Husk short-circuit:** `GLOSSARY_JSON.total_terms == 0`, `DECISIONS_JSON.count == 0`, `STRATEGY_CONTENT == {}` — all three hold → skip Phase 3b entirely.

**Phase 4 — Downstream (fn-9.2):** line 8 references `AuthResult.token` ("persist the AuthResult.token value into the session map") — now stale, should be `AuthResult.access_token`.

**Phase 4b — Skip** (CROSS_SPEC false).

**Phase 5 — DRY_RUN true:** report only. Parent spec fn-9.md has an `## Acceptance Criteria` section but **no `## Requirement coverage` table** → traceability sub-step skipped. Spec-body edits are restricted to the traceability table, so the parent spec's stale Approach line is out of edit scope (not flagged for auto-edit).

---

Drift detected: yes
- fn-9.1 renamed the field to `access_token` (OAuth vocabulary) instead of the planned `AuthResult.token` — `AuthResult.token` no longer exists (confirmed in `src/auth/result.py`, commit `8e3b64f`).

Would update (DRY RUN):
- fn-9.2 (`.flow/tasks/fn-9.2.md`, line 8): change `AuthResult.token` → `AuthResult.access_token` in "After login, persist the AuthResult.token value into the session map."; add breadcrumb `<!-- Updated by plan-sync: fn-9.1 used access_token not token -->`.

No traceability table in parent spec → no traceability update.
No glossary / decision / strategy signal (all husk) → none flagged.

No files modified.