## What
One new live-PostgreSQL E2E suite, 4 tests. **No production file is
touched** — evidence, per the E2E worker's remit. Follows #2795, which
found the first instance of this pattern.
`packages/engine/src/__tests__/workflow-optional-role-param-caller-audit-live-e2e.pg.test.ts`
## The finding
#2795 showed a conversion pattern the lifecycle-column census cannot
see: a role question migrated into an **optional parameter whose default
is the legacy literal**, converted at some call sites and not others.
This shows it is not a one-off, and measures it.
| seam | call sites passing the resolved answer |
|---|---|
| `shouldHoldActiveFileScopeLease` | **2 of 4** (both `scheduler.ts`;
neither `self-healing.ts`) — #2795 |
| `evaluateParkedAgentTaskLink` | **2 of 6** (`scheduler.ts`,
`task-agent-sync.ts`; neither `agent-heartbeat.ts` ×2 nor
`self-healing.ts` ×2) — this PR |
The second is the more damaging, and the callee's own FNXC note already
names the outcome: without the resolved columns "the card would be
treated as unparked and its live agent link cleared" — **a stale-link
bug turned into a dropped-link bug**. Driven here: a card parked in a
renamed board's hold column, with live execution proof, has its agent
link dropped.
### Why the census is blind to it
The callee is converted and its default is correctly marked
`DELIBERATE-LITERAL` — for an unconverted caller that default genuinely
*is* the intended behaviour. **The unconverted call sites contain no
column literal at all**; it lives one function away. So the census
counts the callee's annotated literals and sees nothing at the call
sites, and the conversion reads as complete from every angle except
running it.
This is a *class*, not two bugs. The same shape exists at roughly twenty
seams (`revertableColumns`, `plannerColumns`, `roleColumn`,
`terminalColumns`, `activeColumns`, …). Two are now measured. I checked
two others I flagged as unknown in #2795 —
`restart-recovery-coordinator.ts`'s `isReviewColumn?` and the
`isRecoverableMissingWorktreeReviewFailure` family — and **their callers
are fully converted** (`extension.ts:1924`, `task.ts:1390`,
`self-healing.ts:12087`), though the doc comment claiming `extension.ts`
"still asks with the literal" is now stale. The rest are unaudited; the
audit case is written so adding a seam is a small edit.
## Scope, stated honestly
Three cases are driven end to end: real persisted rows from a live
store, the real exported predicate, both call shapes. The **call-site
split is asserted against source text** — reaching all six sites needs
the heartbeat and self-healing harnesses, which I did not build, and the
audit case says so in its own comment rather than dressing it up.
It is an alarm in **both** directions: a new unconverted caller pushes
the count up and fails; converting an existing one pushes it down and
also fails. The second is deliberate — that is the moment someone should
read the three behavioural cases and update the number on purpose.
## Mutation-verified
Flipping the callee's default from the legacy parked pair to
`["backlog"]`:
| case | result |
|---|---|
| CONTROL (default board, no options) | **fails** |
| CHARACTERIZATION (renamed board, no options) | **fails** |
| BOUND (renamed board, options passed) | passes — correct, the argument
overrides the default |
| AUDIT | passes — correct, it is a source assertion |
## Not done, and why
**No fix.** Passing the resolved columns at the four unconverted sites
means resolving each linked task's traits inside the heartbeat and
self-healing paths — async work in loops that already hold locks — and
both files belong to other workers. The differential says exactly what
the fix should make true.
## Verification
- new suite — **4/4 passed**, mutation matrix above
- full live-PG E2E surface — **137/137 passed** (133 on main + 4)
- `pnpm lint` — clean
Lane: `.pg.test.ts`, skipped via `pgDescribe` when no PostgreSQL is
reachable, so the merge gate is unaffected. Throwaway per-file database;
never port 4040.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
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