## Census before / after
| | before | after |
|---|---:|---:|
| `TaskDetailModal.tsx` | **30** | **7** |
| repo backlog | 721 | **698** |
Backlog dropped by **23** — the converted count, nothing else moved.
**Not 30 → 0.** The seven survivors are enumerated below with reasons
rather than absorbed into the number.
## Converted (23)
Four role bindings declared immediately after `workflowMoveMetadata` —
their source — and 20 in-component comparisons collapsed onto them.
Two module-scope helpers (`resolveDefaultTab`,
`requiresExecutionModeReplan`) take a bare column id with no flags in
scope, so they use the fallback-only form. That is **centralisation, not
trait resolution**, and each is labelled as such at the site so it stays
greppable as "still needs its flags threaded".
## Not converted (7), each with a reason
| count | site | why |
|---:|---|---|
| 2 | `showNearDuplicateWarning` (~881) | Sits **above**
`workflowMoveMetadata`, so referencing the role bindings is a
temporal-dead-zone error. Needs the state declaration hoisted —
behaviour-safe, but it reorders hooks in a 6500-line component, which is
not a vocabulary edit. |
| 2 | two `useEffect` dep arrays (~930, ~936) | Same problem, subtler:
the callback *bodies* could reference the bindings, but a **dep array is
evaluated eagerly** at the hook call, which is above the declaration.
Same hoist. |
| 2 | `overlapBlockerTask.column` (~3559) | A **different task's**
column. The modal holds flags for its own card only; resolving the
blocker's role means fetching its flags. Out of scope. |
| 1 | `session.agentState === "done"` (~353) | An **agent state, not a
column**. Already reclassified in #2692 — this file drops to 6 counted
when that lands. |
## Late-arriving flags — checked, not assumed
`currentColumnFlags` is `null` until the workflow fetch resolves, so
every role here flips after first paint. That is the hazard that
produced four stale memos in `TaskCard` (#2688 review), so I ran an AST
pass over every `useMemo` / `useEffect` / `useCallback` in the file.
**None needed a new dependency** — the 20 converted sites are all
render-path expressions rather than memoised closures. Worth stating
explicitly, because "no dep changes" in a conversion PR usually means
nobody looked.
## Verification
`pnpm test:gate` green (10 / 158 / 487 / 71). `pnpm
check:lifecycle-columns` exits 0 with the baseline re-recorded here.
`tsc -p tsconfig.app.json` clean. `pnpm lint` clean. Targeted
`TaskDetailModal` suites pass (5/5).
Note: the full `TaskDetail*` glob exceeds a 10-minute run locally, so I
verified with the targeted suites plus typecheck rather than reporting a
number I did not measure.
No changeset: no user-visible change.
---------
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
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