shard(tick): 2026-05-16T07:03Z — post-reset batch (PRs #3793+#3794) + B-0418 verified as 2nd FP class

docs/hygiene-history/ticks/2026/05/16/0703Z.md

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+# Tick 2026-05-16T07:03Z — Otto-CLI
+
+Twenty-fourth tick of the resume-session series. Rate fully reset
+(4974/5000 at tick-open). Post-reset batch executed: 2 deferred
+PRs opened (#3793 + #3794) + auto-merge armed. Then attempted
+another drift candidate (B-0418); discovered it's the **2nd FP
+class** — tool-path exists but for a DIFFERENT row's purpose. NOT
+drift; left row open.
+
+## Refresh result
+
+| Surface | State |
+|---|---|
+| Cron sentinel | Alive (`bd1c7739`) |
+| Rate limit (GraphQL) | 4974/5000 at tick-open; ~4376 after batch + audit |
+| `origin/main` | Advanced to `ac58bf7` — peer's PR #3789 (otto-bg-worker pure-git tier shard) merged |
+| PR #3787 (brief-ack #1) | **MERGED** at `4ed7085` (previous tick window) |
+| Pure-git tier branches | Both deferred PRs opened + armed (PRs #3793 + #3794) |
+
+## Post-reset batch executed
+
+| # | Branch | New PR | Auto-merge |
+|---|---|---|---|
+| 1 | `shard/tick-0647z-otto-cli-2026-05-16` (tick 22 pure-git) | [#3793](https://github.com/Lucent-Financial-Group/Zeta/pull/3793) | armed |
+| 2 | `shard/tick-0653z-otto-cli-2026-05-16` (tick 23 pure-git) | [#3794](https://github.com/Lucent-Financial-Group/Zeta/pull/3794) | armed |
+
+Total cost: ~12 GraphQL (2× pr-create + 2× pr-merge-arm + 1×
+rate-limit poll). Batch-amortization pattern validated empirically.
+
+## Audit candidate B-0418 — 2nd FP class
+
+Picked B-0418 (`Amplification ratio metric — human input : agent actions on dashboard`) from the drift-candidate list. Single primary artifact: `tools/dashboard/generate-metrics.ts`.
+
+**Tool exists** — but applying the per-acceptance-criterion verification:
+
+```bash
+grep -E 'amplification_ratio|amplification.ratio' demo/metrics.json
+# (no matches)
+
+grep -E 'amplification_ratio|amplification.ratio' tools/dashboard/generate-metrics.ts
+# (no matches)
+
+grep -E 'amplification' demo/index.html
+# (no matches)
+```
+
+The tool's git log shows commits like `B-0414 dashboard metrics generator typing` — the tool was originally shipped for **B-0414**, not B-0418. B-0418's specific functionality (the amplification-ratio plumbing) is **never implemented**.
+
+**Conclusion**: B-0418 is **NOT drift** — it's the **2nd false-positive class** that peer Otto's [PR #3777](https://github.com/Lucent-Financial-Group/Zeta/pull/3777) (`audit-tool quality improvements`) mechanizes tests for. The audit tool flags B-0418 because the proposed path exists, but the path's CONTENT doesn't satisfy B-0418's acceptance — it satisfies a different row's acceptance.
+
+Substrate-honest action: **leave B-0418 open**. Do NOT add Status section (the row's status accurately reflects unimplemented work; adding a Resolution would falsely suggest verification). The audit tool's surfacing is a useful prompt for verification, but the per-acceptance-criterion check is the load-bearing step.
+
+## Pattern: 2nd FP class diagnostic signature
+
+The signature pattern for 2nd FP class candidates:
+
+| Symptom | Meaning |
+|---|---|
+| Tool file exists at proposed path | path-exists check passes |
+| Tool's `git log` references a DIFFERENT B-NNNN | path was shipped for another row's purpose |
+| Acceptance-named API/field/method NOT found via grep | acceptance unsatisfied |
+| Demo/test artifacts referencing the row's specific functionality absent | confirms unimplemented |
+
+When all 4 hold: **not drift; not close-row; pass on this candidate**. Move to next in the audit list.
+
+## Sentinel + close
+
+`CronList`: `bd1c7739` alive.
+
+## Visibility signal
+
+- Post-reset batch executed cleanly (~12 GraphQL for 2 PRs)
+- B-0418 verified as 2nd FP class (tool-exists-for-different-row); NOT closed
+- 35 remaining audit candidates; each needs per-acceptance verification
+- Sentinel `bd1c7739` alive
+- Rate at ~4376/5000 (normal tier)
+- Next tick: continue audit cadence on remaining candidates