session 2026-07-19 evening: engine gate failure-legibility + one-door plan banked; PENDING-64 closure annotated

claude/memory/session-ledger-2026-07-19.md

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   node_type: memory
   type: feedback
   originSessionId: 93885dc0-9b79-47a4-8b5c-82363a1b6763
-  modified: 2026-07-19T12:01:15.277Z
+  modified: 2026-07-19T15:15:53.452Z
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 # Session Ledger — 2026-07-19
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 - 2026-07-19T15:05 — Steward RATIFIED (conversational) → **spec v2.2.0 LANDED** (`81cbdd1`, both remotes): v2.1.0 frozen byte-identical (sha-verified) · §III subsection with the Ion record · bounded-diff proven (99 added + title line; all else v2.1.0 verbatim) · fleet 188/188 · CLAUDE.md currency · REVIEWED-65 drafted (edit-set Addendum + relayed in chat). The whole coordinate-contract arc — surfaced at 2b build → observed at S3 → package → design-gate → REVIEWED-64 → build → placement gate → correction → ratification → v2.2.0 — closed in three sessions.
 
+- 2026-07-19T15:27 — /wake-up + /symmetria init (~50 min after the day wrap — brief pause, not full sleep). Thread-validity: CONFIRMED — the engine pull. chamber `main` @ `81cbdd1` both remotes; **REVIEWED-65 verified placed (`~/REVIEWED.md:605`) → PENDING-64 CLOSED** (first horizon below discharged); dotfiles clean/synced; no foreign commits anywhere. Carried in: `canary-clean-over-standing-failures` (state deltas against a committed baseline, never cleanliness — this session's design content, not just its flag) + `record-asserts-applied-before-the-act` (record after the act, or mark prospective — live while composing engine design docs). Housekeeping noted: PENDING-64's Awaiting line is one annotation behind (still reads "awaiting placement"; placement happened) — closable-now dotfiles strike.
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+- 2026-07-19T16:0x — **The engine pull LANDED as one block** (engine `359e484`+`c024f6a`+`cffc68c` pushed GitHub; chamber `1a217a1` pushed BOTH remotes). (1) Census first: committed ledger carried `failed: 5` as a bare count while every row asserted `status: "validated"` — including the failed sources' rows (PASS-BUT-FALSELY committed to git); errors stdout-only. (2) Gate failure-legibility built (spec-note → tests witnessed-red on the `run()` seam → 24/24): failures named in the artifact, known-vs-new = declared data (`known-failures.json`, exact-signature entries; stale = red; declaration changes reporting, never acceptance). (3) Lifecycle proven on real data: 5 declared (known-failed/0 new, exit 0) → re-anchored → 10 declarations STALE (red, witnessed) → retired → 13 validated, exit 0. (4) Re-anchor re-VERIFIED, not re-stamped: old states reconstructed from ARC git by declared-sha match (all @ 355757d), deltas proven exactly the known hunks; the runbook completeness grep surfaced a SIXTH binding surface (chamber after-the-reply reading-index — 48 anchors re-verified, ellipsis-aware; only the header-declared essay-III condensation divergence stands). (5) Frame question ANSWERED in spec-note §4: engine binds path+sha only, no chamber-geometry consumer exists; content-probe fence = named follow-on. (6) Erratum: the plan's "21 sources — verified, not recalled" was FALSE at writing (git: 8→14→13); corrected at all three surfaces. Checkable-claim discipline caught a record claiming verification it never had.
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+- 2026-07-19T17:0x — Planning deliberation + wrap. The steward corrected the full map TWICE (shortlist spine under-represented; extant tier's structural state) → drift-pattern `map-drawn-from-production-lanes-not-telos` logged. The reconversion-vs-make-gold fork dissolved into ONE DOOR (V-TEXT and reconversion share the conversion step; the extant tier has no sidecars/frontmatter → promote-in-place collapses to exception lane); PENDING-65 deliberately NOT drafted at wrap (S2a's bite, hook-grounded). Five-session plan banked (S1 V1 · S2a/S2b · S3 V2 · S4 N1 · S5 #2). Wrap ran: session file + MEMORY.md promote/demote (budget trim 18.4→16.8KB, 5 entries relocated with backup) + PENDING-64 closure annotation + runbook standing-instance repaired-annotation + KG ×4 + harvest ×1.
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 ## Open horizons
 
-- **Steward places REVIEWED-65** (draft in the edit-set Addendum + chat) → PENDING-64 CLOSES. The last act of the arc.
+- ~~**Steward places REVIEWED-65** (draft in the edit-set Addendum + chat) → PENDING-64 CLOSES. The last act of the arc.~~ **DONE — placed `:605`, verified at the 15:27 wake.**
+- **Content-probe fence** (engine, named follow-on, D-1 own slot): per-section content attestations in engine sidecars, gate-verified — the structural closure of bounds-valid ≠ content-correct (spec-note §4). Dependency: `studium/meta@1` optional-field extension + probe generation for the 13 sidecars.
+- Derived-layer staleness observed at rebuild (prior index.db diverged 4719/3122 — it had been stale across several manifest changes with nothing prompting a rebuild): same class as PENDING-53's "nothing runs the gate after a chamber edit". Candidate: store-verify in the same after-edit discipline. Note, don't pursue (L2-adjacent process design).
 - The engine pull (next slot): known-vs-newly-failing ingest_gate distinguishability + the after-the-reply re-anchor.
 - Pacing coupling (jurist note): pre-#2 batches grow the untranslated backlog — surface at every "next batch" appetite.