## This is a correction to #2996, and that's why it exists
#2996 fixed the **subscription**: `wantsLiveTimeIndicator` kept a
pre-load answer, so the card never joined the shared ticker. I described
it as making renamed-lane cards *"show their live elapsed-time
indicator."*
It made them **eligible to**. They still rendered nothing, because a
second gate rejects them first — and I didn't look past the seam I'd
just fixed.
```ts
const TIME_INDICATOR_COLUMNS = new Set<ColumnId>(["in-progress", "in-review", "done"]);
```
Both the `timeIndicator` memo and the `chipFarRight` layout test
`task.column` against that set directly, so a card in a renamed WIP,
review or completion lane returns `null` whatever its resolved traits
say.
## Why no check saw it
The census counts **comparisons** against legacy ids. This is a `Set`
literal — a **definition**. Nothing in the backlog ever pointed here,
which is the same blind spot that hid `BLOCKER_ESCALATION_COLUMNS` until
someone read the code rather than the report.
## The fix
The gate becomes a role question, with the legacy set kept as the
**no-flags fallback** and marked `DELIBERATE-LITERAL`. A card whose
traits haven't resolved — first paint, or a lane its workflow no longer
declares — behaves exactly as before.
## Measured
| check | result |
|---|---|
| test written first | red for the right reason — control and negative
passed, only the renamed case failed (`expected false to be true`) |
| after the fix | 3 passed |
| reverting the memo gate to the raw set | that case fails again |
| five `TaskCard` suites | **418 tests green** |
| gates | all five green; lint and `tsc` clean |
## The negative case
Resolving traits must not put a live timer on every lane. A card in the
renamed **intake** lane hasn't started, so it stays out — otherwise the
fix trades a missing indicator for a running clock on work that hasn't
begun.
## Worth noting for the pattern
Two of my last four findings came from re-examining my own merged work
rather than from new code: this one, and the `bounded` heuristic
correction in #3012. Fixing one seam and declaring the symptom gone is
its own failure mode — the user-visible behaviour needed *both* halves,
and I only checked the half I'd touched.
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
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