Tasks: a closed poll-only work item leaves the board by itself

The last spec artifact. A DAG derived from the design and testing plan; each task names the testing-plan row that proves it. TDD: the test first, red, then green.

Task list

[x] 1. The schedule — LEDGER_RECHECK_EVERY_CYCLES / LEDGER_CHECKS_PER_CYCLE, PollState.absent_since / note_closure_check, PollSummary.ledger_checks, the poll.cycle field, the two catalog descriptions
- Depends on: none
- Requirements: R1.2, R1.5, R1.6, R3.3
- Test: T1 — the PollState tests; T11 — the event catalog
[x] 2. The set and the question — _ledger_candidates, _ask_closure factored out of _reconcile_closures, the ledger-only loop with its cap and its dating of a non-closure
- Depends on: 1
- Requirements: R1.1, R1.3, R1.4, R1.5, R1.7, R2.1–R2.3
- Test: T1 — the candidate-set and outcome tests; T3 — the scenario; T9 — A1–A4
[x] 3. Docs, capability doc, decision — docs/cli/state.md, docs/cli/concepts.md, docs/capabilities/webhook-triggers.md (+ history row), decision-115 + index row
- Depends on: 2
- Requirements: R3.1, R3.2, the capability-docs gate
- Test: T11 — docs parity; T13 — make check
[x] 4. Verification — execute testing-plan.md, record evidence/verification.md and evidence/security-review.md
- Depends on: 3
- Requirements: all
- Test: T1, T3, T9, T11, T13, T14

Dependency graph (DAG)

mermaid

flowchart LR
  T1["1 the schedule"] --> T2["2 the set and the question"]
  T2 --> T3["3 docs + decision"]
  T3 --> T4["4 verification"]

Checkpoints

After task 1: the PollState and catalog tests green. After task 2: T1 and T3 green, every pre-existing reconciliation test green. After task 3: make check. Then the verification node, the self-review rounds and the security review gate (evidence/security-review.md), then the PR with the reviewer briefing.

Review comments

Appended by the-loop's record-feedback hook when a human gate approves with comments (issue-109). Append-only and attributed: an approval never silently discards a reviewer's suggestions, and the feedback travels with the document it concerns rather than living in a side-channel tracker.