memory: trim MEMORY.md 20504->17250 (slim not delete); tomorrow = CM/BMF -> library transfer

Index was re-bloating to its pre-compaction size — the exact class the two-file
split exists to prevent. Slimmed 6 over-budget tracker entries and 12 standing
preferences to their operative rule, relocating provenance narrative to the
linked files where it already lives. 49 bullets before and after, 5 sections
before and after, 49/49 pointers resolve.

Session record gains tomorrow's steward-set agenda: what transfers from
CapableMind/BMF to the library/engine — led by running census 01 against the
chamber/engine tooling it explicitly declared out of scope.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WuMjg3ipEVa3n8CoSzoyvc

claude/memory/MEMORY.md

@@ -13,56 +13,56 @@ permalink: claude-memory/memory
 # Claude Code Memory
 
 ## Standing preferences
-- [Chamber work: ground in constitution + charter + runbook FIRST](feedback-chamber-work-ground-in-constitution-charter-runbook.md) — steward directive 2026-07-28: **any chamber work *or talk about it*** begins by reading the **library constitution** · the **engine charter** · the **conversion runbook** (incl. `reanchor:` — a new hash invalidates bindings in BOTH repos). Repo CLAUDE.mds are pointers, not state. Corpus claims come from a self-tested tool, never a hand grep. **Enforcement mechanism owed** (hook/skill/wake-conditional; `verify-before-compose` is the precedent).
+- [Chamber work: ground in constitution + charter + runbook FIRST](feedback-chamber-work-ground-in-constitution-charter-runbook.md) — **any chamber work *or talk about it*** begins by reading the **library constitution · engine charter · conversion runbook** (incl. `reanchor:`). Repo CLAUDE.mds are pointers, not state. Corpus claims come from a self-tested tool, never a hand grep. **Enforcement mechanism owed.**
 - [CapableHands standing authorization](reference-capablehands-standing-authorization.md) — M4 mini david@10.0.1.136 durably authorized for remote OCR/inference; don't re-ask permission to use it (steward 2026-07-01).
-- [Every canon doc's source lives in Chamber Sources](feedback-resolve-source-through-chamber-sources.md) — a canonical's source = whatever `resolve_archived_source` returns (the **Chamber Sources** folder; NEVER the master library or a path in a plan/doc/frontmatter); read the banked source record before calling a mismatch a defect; fix wrong/missing pins to golden standard. (Steward, 2026-07-24, after 3 corrections on the Levi omnibus source.)
-- [Steward maps live in ~/dotfiles/maps](reference-steward-maps-home.md) — a **map** = an artifact David reads *directly* to orient (dashboard, corpus index, reading list). Write it into `~/dotfiles/maps/` and symlink to the Desktop, **never** straight onto the Desktop. Est. 2026-07-28 after one was lost and four more found unbacked; `wake-digest.py` reports strays.
+- [Every canon doc's source lives in Chamber Sources](feedback-resolve-source-through-chamber-sources.md) — a canonical's source = whatever `resolve_archived_source` returns (**never** the master library or a path in a doc/frontmatter); read the banked source record before calling a mismatch a defect.
+- [Steward maps live in ~/dotfiles/maps](reference-steward-maps-home.md) — a **map** = an artifact David reads *directly* to orient. Write it into `~/dotfiles/maps/` and symlink to the Desktop, **never** straight onto the Desktop; `wake-digest.py` reports strays.
 - [Governance files are dotfiles symlinks](reference-governance-files-are-dotfiles-symlinks.md) — `~/PENDING.md`/`~/REVIEWED.md`/`~/CLAUDE.md` → `~/dotfiles/…`; Edit/Write refuse to write through a symlink, so **edit the real dotfiles path** when appending PENDING/REVIEWED.
 - [Typography palace — query via CLI](reference-typography-palace-cli.md) — type masters (~20-21 sources) in a dedicated MemPalace at `~/.mempalace/palace-chamber-typography`; query `mempalace --palace <that> search "…"` (CLI). For ARC typography — don't re-ask where it lives.
-- [The central path — answerability, not purity](feedback-central-path-answerability-not-purity.md) — the working resolution of the contamination recursion (steward 2026-07-29): it is **probably irresolvable** (human bias is the other half — auditing the audit never converges), so **stop certifying the parties, bind the claims**. Route by claim-type: *checkable* → produce the check + a falsifier, motives irrelevant; *judgment* → disclose standpoint in one line, decide, record; *undecidable* → name it open. **One layer of disclosure, then act — never audit the audit.** ⚠ *pleases* ≠ *achieves what's necessary* — they coincide when true and welcome align; and for a tool the steward couldn't have specified, deference has nothing to defer to.
+- [The central path — answerability, not purity](feedback-central-path-answerability-not-purity.md) — the contamination recursion is **probably irresolvable**, so **stop certifying the parties, bind the claims.** Route by claim-type: *checkable* → produce the check + a falsifier; *judgment* → disclose standpoint in one line, decide, record; *undecidable* → name it open. **One layer of disclosure, then act — never audit the audit.**
 - [Fowler's rules for quotation](feedback_fowlers_rules_quotation.md) — single quotes primary, double for nested, logical British punctuation order. Apply across all writing.
 - [Canadian spelling in ARC prose](feedback-canadian-spelling-arc-prose.md) — centre/colour ("almost EU"); corpus "center" = autocorrect drift (10 files, cleanup open). Draft all steward-voiced prose in Canadian spelling.
 - [Rank on fields you actually write](feedback-rank-on-fields-you-actually-write.md) — a consumer that ranks by an evaluative field (importance/weight) nothing populates silently degrades to trivial order while claiming to rank; verify scoring fields end-to-end, prefer signals already captured (recency). For BMF/CapableMind/studium-engine tool-building.
 - [Shorter, concentrated sessions](feedback-shorter-concentrated-sessions.md) — steward preference (2026-07-13): shorter but very concentrated — ONE tightly-scoped high-leverage bite taken all the way, then wrap; hold the rest as ranked horizons.
-- [Constitution-as-block, then pull-based corpus](feedback-constitution-as-block-then-pull-based-corpus.md) — steward discipline (2026-07-14): finish the **constitution as one block FIRST**, THEN corpus-into-spec **pulled by what each engine phase needs**. **Bounded question → bounded answer; don't surface N new threads**; keep open-thread count LOW. Above [[feedback-shorter-concentrated-sessions]].
-- [Close thoroughly — no frequent deferrals](feedback-close-thoroughly-no-frequent-deferrals.md) — steward directive (2026-07-16): **frequent deferrals ARE how the cloud accumulated**; close ALL of a block that's closable-now; distinguish closable-now vs genuinely-blocked (**name the specific dependency**, never a vague defer). Completeness complement to [[feedback-constitution-as-block-then-pull-based-corpus]].
-- [Removing a claim ≠ removing the reliance](feedback-removing-a-claim-is-not-removing-the-reliance.md) — cutting an unsupported sentence can **hide** the gap rather than close it: the dependency survives, now implicit and invisible to every check. Test isn't "is the bad sentence gone" but "**does the conclusion still need it**". Earned 2026-08-02 — I reported removing a defect and had actually concealed it; the jurist found it, the kernel and four gates did not.
+- [Constitution-as-block, then pull-based corpus](feedback-constitution-as-block-then-pull-based-corpus.md) — finish the **constitution as one block FIRST**, then corpus-into-spec **pulled by what each engine phase needs**. **Bounded question → bounded answer**; keep open-thread count LOW.
+- [Close thoroughly — no frequent deferrals](feedback-close-thoroughly-no-frequent-deferrals.md) — **frequent deferrals ARE how the cloud accumulated**; close ALL of a block that's closable-now; distinguish closable-now from genuinely-blocked (**name the specific dependency**).
+- [Removing a claim ≠ removing the reliance](feedback-removing-a-claim-is-not-removing-the-reliance.md) — cutting an unsupported sentence can **hide** the gap rather than close it; the dependency survives, now invisible to every check. Test isn't 'is the bad sentence gone' but '**does the conclusion still need it**'.
 - [Checkable claim surfaces bugs](feedback-checkable-claim-surfaces-bugs.md) — insisting on a checkable claim (number, substrate-fact, discriminating test) over a soft classification repeatedly EXPOSES a real bug; the demand for verifiability is itself a defect-detector. Steward-named 2026-07-13. (Caught F-5 + the "finally" overclaim, 2026-07-17.)
 - [Derive the rule from the consumer, not the survivor](feedback-derive-the-rule-from-the-consumer-not-from-the-survivor.md) — picking between two disagreeing implementations is **selection, not derivation**; derive from what a CONSUMER must do. Complementary-correctness defeats sampling.
 - [Census by mechanism, not proxy](feedback-census-by-mechanism-not-proxy.md) — census by RUNNING the real pipeline, not a proxy; distrust the finite-feeling bucket that arrives when you want to feel done.
 - [Completion is a tripwire](feedback-completion-is-a-tripwire.md) — the *feeling* of "done" is the cue to verify the tail (census/gate/scan-check), not the signal to ship; the last 10% is invisible from inside the first 90%. Ninety-Ninety as a security property (steward 2026-07-06).
 - [Studium Engine charter](reference-studium-engine-architectural-charter.md) — the engine's constitutional doc (`studium-engine/docs/the-studium-engine-architectural-charter.md`): reasoner-at-centre over a BOUNDED provenanced corpus; three cognitions; boundedness=trust. Read before building the engine.
 - [Studium Engine = Sixtus-V craftsman collaboration](feedback-studium-engine-sixtus-v-collaboration.md) — work the ground freely (I build, surface only vision-forks); **constraint-candidates** = 3rd governed instrument (I name, steward applies). Studium-engine only; heavier loop for L1/L2.
-- [Trust prior pass frame](feedback-trust-prior-pass-frame.md) — When extending a prior verification, re-run it at the scope of the extension. Frame-inheritance from a deep-read is contamination shape: the prior pass tested what it tested; your extension claims things it did not test. Caught 2026-05-28 → four-pass audit. Verify-before-compose at draft time, not build time.
-- [MemPalace is an unaffiliated stopgap](mempalace-is-unaffiliated-stopgap.md) — MemPalace is third-party; steward/Seb build BMF/CapableMind (hoped to replace it). Don't conflate them (3rd steward correction 2026-06-05 — the conflation even reached a skill name and was retracted); MemPalace PRs await MemPalace's maintainers, NOT Seb.
+- [Trust prior pass frame](feedback-trust-prior-pass-frame.md) — when extending a prior verification, **re-run it at the scope of the extension**. The prior pass tested what it tested; your extension claims what it did not test.
+- [MemPalace is an unaffiliated stopgap](mempalace-is-unaffiliated-stopgap.md) — third-party; steward/Seb build BMF/CapableMind. Don't conflate them. MemPalace PRs await MemPalace's maintainers, **not Seb**.
 - [Skill-harvest register](skill-harvest-register.md) — **canonical home for proposed skills** (governed analog of PENDING.md for tooling); `/wrap-up` §1.6 proposes, steward authorizes. **Register compaction + ladder batch-append owed** — it exceeds read caps (tripwire 2026-07-22). Built: `/jurist-package`, `/model-handoff`. Ruled/held detail in the file.
 - [Copy-paste-clean governance drafts](feedback-governance-drafting-copy-paste-clean.md) — draft PENDING/REVIEWED placement blocks as plain fenced markdown; display formatting leaks into the placed record (REVIEWED-59 header, 07-16).
 - [Verification ladder](reference-verification-ladder.md) — the named instruments (byte-identical compile gate, delta classification, censused-routes, fresh-clone gate, measure-toolchain-before-spec…); reach for the gate the claim's shape demands instead of re-deriving.
 - [Plane coordination workflow](reference-plane-coordination-workflow.md) — CENTRAL to steward↔Seb: `app.plane.so/capablemind`, thin effort-tasks `[BM #N]` over canonical GH issues. ⚠ BBF = BetterBridge *product*, NOT the board. Detail + MCP setup in file.
-- [Resurface banked notes before re-deriving](feedback-resurface-banked-notes-before-rederiving.md) — when an idea was already captured (runbook known_gaps, skill-harvest, prior note), READ the note before re-deriving; re-derivation drifts (page-numbers mis-recalled as provenance vs structure-scaffolding, steward re-corrected 2026-06-27). The engine's own purpose, turned on my practice.
+- [Resurface banked notes before re-deriving](feedback-resurface-banked-notes-before-rederiving.md) — when an idea was already captured (runbook known_gaps, skill-harvest, prior note), **READ the note before re-deriving**; re-derivation drifts.
 - [Verify-before-compose hook](feedback-verify-before-compose-hook.md) — chamber constitutional writes are BLOCKED by a PreToolUse hook without `<!-- GROUNDED-IN: … -->` + verbatim Grounding. Don't fight the block.
-- [Tool review after each use](feedback-tool-review-after-each-use.md) — steward directive (2026-06-16): review every tool we built after each run (success OR failure), capture what it taught, iterate until reliable; PASS-BUT-FALSELY is the priority signal. Log at `chamber-library/_curation/tool-evolution-log.md`. Proven same day (audit_cruft hardening → 160 hidden-dirty files surfaced).
-- [Engine sources graduate to the permanent chamber](feedback-engine-sources-become-permanent-chamber-collection.md) — steward policy (2026-06-28): any work added for the engine ALSO becomes permanent chamber collection unless expressly stated; take it ALL the way (clean→verify→graduate→catalogue→sidecar); never leave staged. The chamber accumulates. ⇒ all ~30 Making sources graduate in.
+- [Tool review after each use](feedback-tool-review-after-each-use.md) — review every tool we built after each run (success OR failure); iterate until reliable. **PASS-BUT-FALSELY is the priority signal.** Log at `chamber-library/_curation/tool-evolution-log.md`.
+- [Engine sources graduate to the permanent chamber](feedback-engine-sources-become-permanent-chamber-collection.md) — any work added for the engine ALSO becomes permanent chamber collection unless expressly stated; take it ALL the way (clean→verify→graduate→catalogue→sidecar). Never leave staged.
 - [Notes are part of the work](feedback-notes-are-part-of-the-work-keep-footnotes-endnotes.md) — steward directive (2026-06-28): footnotes/endnotes are integral — KEEP+CONVERT them (`<sup><a>`→`[^N]`), never drop on graduation. (Caught dropping Taylor's endnotes — wrong.)
 - [The maturation of the chamber — a dialogue](~/_Dev/studium-engine/docs/the-maturation-of-the-chamber-a-dialogue-2026-06-28.md) — the pivotal 2026-06-28 exchange on the chamber's telos (fidelity-without-trust; reading-is-unsolvable-is-the-feature; L2/engine=answerable-not-pure). Companion to [[project-studium-engine-telos-chamber-of-voices]].
 
 ## Canonical Workstream Trackers
 *Read the tracker for any active workstream at /wake-up before composing the briefing. Append substantive moves at /wrap-up. Per `feedback-canonical-workstream-tracker-discipline.md`.*
-- **[Chamber as versioned releases (the governing frame)](project-chamber-versioned-releases.md) — steward reframe 2026-07-25: the full 2000-year Chamber (incl. image-based Warburg/Jung, Berger, Alexander) is the HORIZON; realize it as versioned releases with soft borders — "Chamber V1 = constitution vX + engine vY + a bounded voice-set, serving a specific PURPOSE" (Making Sequence · violin/XXI-century treatise · ARC). Purpose-first re-bounds the library work: the V-TEXT wave needn't all clear for V1. PENDING-75 kind-scoping = the enabler of additive version growth. Scope every library bite through this. Open decision: which purpose anchors V1.**
-- [The Chamber touchstone — the *why*, and it does not move](~/_Dev/studium-engine/docs/the-chamber-touchstone.md) — seven questions to **test work against** when lost in the trees (one clause · answerable-not-pure · the seam · the gap stays open · inside-not-receiving · reading-not-concluding · for whom). Est. 2026-07-28; every quote source-verified verbatim. **Read at Step 0 of any chamber work**, before constitution/charter/runbook — those are operational and say nothing about why. Points at its seven sources; holds no state, so it does not decay.
-- [The Chamber vision is NOT in one place](project-chamber-vision-is-not-in-one-place.md) — honest answer to the steward's 2026-07-28 hope: it lives in **seven** sources across two repos + memory (one was behind a broken pointer; all pointers repaired 2026-07-28), and the two newest maps (**boundedness gradient** · **convocation ladder = who convokes**) exist only in a session record. Census + what a single home would need. **Not yet proposed as a document** — a grand synthesis would become an eighth scattered source unless it supersedes or points.
+- **[Chamber as versioned releases](project-chamber-versioned-releases.md) — THE GOVERNING FRAME for all library work.** Realize the 2000-year Chamber as versioned releases with soft borders, each serving a PURPOSE. Scope every library bite through this. **Open decision: which purpose anchors V1** — see the facet formalism in `studium-engine/docs/parallel-tracks-…2026-08-03.md`.
+- [The Chamber touchstone — the *why*](~/_Dev/studium-engine/docs/the-chamber-touchstone.md) — seven questions to test work against when lost in the trees. **Read at Step 0 of any chamber work**, before constitution/charter/runbook. Holds no state; does not decay.
+- [The Chamber vision is NOT in one place](project-chamber-vision-is-not-in-one-place.md) — it lives in **seven** sources across two repos + memory (census in file). A single home would become an eighth unless it supersedes or points.
 - [MemPalace wind-down](project-mempalace-winddown.md) — DONE (steward 2026-07-07): `palace-memory` wound down, wake/wrap rewired to the files layer; KG exported (`knowledge-graph.jsonl`). Typography palace KEPT (separate instance).
 - [ARC open-work register](project-arc-open-work-register.md) — **the single code-verified source of truth for what is OPEN on ARC** (post-Stage-G, built 2026-06-11). Read THIS for remaining ARC work (A1 Vignette, A2 cul-de-lampe, content sweeps, Phase-2/held set, REVIEWED-placement debt), not the chronological tracker.
 - [ARC](project-arc-rework.md) — canonical ARC workstream tracker (chronological record 2026-04-16 →). **Status: STAGE G DONE/SEALED (GPG `ac0a7ee`, 2026-06-10) — reactive mode governs.** Open work → [[project-arc-open-work-register]] (A1 Vignette · A2 cul-de-lampe · content sweeps · Phase-2 held set). Chronological detail in the tracker file.
 - Chamber-typography — *tracker not yet established*; substantive moves live in per-session memories (2026-05-11 onward) + `project-chamber-cruft-restoration.md` + `project-chamber-typography-mining-plan-2026-05-15.md`.
 - [Studium engine telos — the chamber of voices](project-studium-engine-telos-chamber-of-voices.md) — **the ultimate goal, above the build plan**: David's childhood chamber of hero-voices → discourse with his library + voices conversing, this time *accountably* (v1 was eloquent/unaccountable; same ambition built grounded/citable). Why verbatim fidelity is load-bearing.
 - [Studium = CM's unfettered sandbox](project-studium-cm-sandbox-and-transfer.md) — Studium/chamber are personal projects Seb now sees as fundamental to CM; experiment freely on the library/engine without risking CM's runtime, breakthroughs transfer back (V2 verifier = live example). Steward-framed 2026-07-08.
-- [Making sequence source set](project-making-sequence-source-set.md) — **COMPLETE against the ReadingList as of 2026-06-18** (reconciliation-verified); census of what's sourced where, sourced≠ingested (only Pos I in manifest), the **Handke-German decision** (original is source), the Levi drop-cap gate (RESOLVED STALE 2026-07-19 — initials present). Read before any Making/studium source work.
+- [Making sequence source set](project-making-sequence-source-set.md) — **COMPLETE against the ReadingList** (2026-06-18, reconciliation-verified). Sourced ≠ ingested; the Handke-German decision; Levi drop-cap gate RESOLVED STALE. Read before any Making/studium source work.
 - [Source library — link + dedupe](project-source-library-link-and-dedupe.md) — steward's master ebook library = `~/Documents/___The Library [ePub_AWZ3]/` (2190 ebooks, messy nested). GOAL: link chamber↔sources (provenance index) + dedupe; real link needs EPUB/PDF internal metadata + edition-identity, not filenames. Detail + seed in file.
 - [Character-as-image hazard](feedback-character-as-image-hazard.md) — EPUBs rendering diacritics as inline images are SILENTLY MUTILATED by image-drop. Mechanism built (`apply_char_glyphs.py`, REVIEWED-70/v2.5.0), wired as a born-digital precondition; per-source glyph-maps still owed. VIEW the glyph; map to SOURCE form.
 - [Sidecar typology — protocol-dependent reading-indexes](project-sidecar-typology-protocol-dependent.md) — TWO layers: `.meta.json` structural sidecar = PROTOCOL-NEUTRAL (the graduated bar); reading-indexes (rich YAML) = PROTOCOL-DEPENDENT, probably PLURAL — **don't design the schema yet**; settle corpus to gold, let protocols declare themselves. Steward 2026-06-29.
-- Studium Engine — *no tracker file yet*; moves in per-session memories + the **[architectural charter](reference-studium-engine-architectural-charter.md)**. Steps 0–7 built; corpus CLEAN; **V1 `verify-quote` BUILT + `fidelity_equivalence@2` GOVERNING (2026-07-19; @1 frozen; dash refused/evidence-gated; Greek/Latin census owed → @3)**. **Stage-1 rebuild plan** (`studium-engine/docs/stage-1-rebuild-plan-2026-07-05.md`): V0+N0 ruled · V1 done → V2→V4 / N1→N3. Collaboration = [[feedback-studium-engine-sixtus-v-collaboration]].
-- [L1 reliability](project-L1-reliability.md) — canonical L1 tracker (est. 2026-05-28). **Baton rule LIFTED 2026-08-03** (was "do not re-enter until Seb pushes"; Seb is stuck on Peter's project, not silent by choice). Latest: the ingest mystery is **solved** — `ANALYZE` never run ⇒ boolean-index pathology; **B1.1's cap works, so the defect is DATA not code**; repair run, **replay in flight**. Remaining for Seb: `getChainsContainingSeq` `json_each` scan (unindexable, schema change). **Read the tracker before ANY L1 work** — this instruction was walked past once today.
+- Studium Engine — *no tracker file yet*; moves in per-session memories + the **[architectural charter](reference-studium-engine-architectural-charter.md)**. Steps 0–7 built; corpus CLEAN; **V1 `verify-quote` + `fidelity_equivalence@2` GOVERNING** (Greek/Latin census owed → @3). Stage-1 rebuild plan: V1 done → V2→V4 / N1→N3.
+- [L1 reliability](project-L1-reliability.md) — canonical L1 tracker. **Baton rule LIFTED 2026-08-03.** Ingest mystery SOLVED (`ANALYZE` never run ⇒ boolean-index pathology; B1.1's cap works ⇒ **defect is DATA not code**); repair run, **replay in flight**. **Read the tracker before ANY L1 work** — walked past once on 2026-08-03.
 - [Be (laundromat)](project-be-laundromat.md) — canonical Be tracker (est. 2026-06-08). Be = Skemantix startup (Seb+David) funding CapableMind's ladder; **bridge, not venture**. Decisions LOCKED (entity/pricing/infra in file); a11y gate MERGED. **Pre-revenue WTP gate = renovate Pat → charge her; discipline: no new spec until it clears → nothing for executor on be.** Repo @ `f43a0fd`.
 
 ## Active Session

claude/memory/session-2026-08-03-the-governors-that-never-engaged.md

@@ -67,6 +67,14 @@ Climbing toward ~19,925 is the whole story. **If it is stopped:** the launchd jo
 
 **LITERAL QUESTION for next-Claude:** Five subsystems today held a control that exists and never engages. `ANALYZE` was one, and one command fixed it. **When the replay finishes, will `coherence_evaluated` be greater than zero — or is the coherence evaluator one more governor that exists and never runs?** It is checkable in a single query, and the answer decides whether the chain layer has any pruning at all or has been accumulating unvalidated path materialisations since April by design.
 
+**TOMORROW'S NAMED WORK (steward-set at the wrap): what transfers from CapableMind/BMF to the library/engine.** The replay will still be running; it does not need watching. The steward's framing — *"the library/engine work is genuinely important because experience and knowledge transfer in both directions"* — and today produced the richest transfer material yet, all of it in the **CM → library** direction that the parallel-tracks doc (Part IV) only sketched.
+
+- **1. Run census 01 against chamber/engine tooling — this is the census's own declared scope gap.** `census-01-…-RESULT.md` names what it did NOT cover: `verify-before-compose`, `audit_cruft`, `verify_conversion`, `resolve_archived_source`, `apply_char_glyphs`, studium `verify-quote` / `fidelity_equivalence@2`. Today found **five governors that exist and never engage** in the CM/governance half. The library half is uncensused, and the same question applies verbatim: *does each gate have a real negative instance, and is its absence recorded or does it look like coverage?*
+- **2. The `ANALYZE` class, generalized: does any engine instrument's cost grow with corpus size?** L1's ingest was **divergent, not slow** — cost per event grew with the corpus, so no hardware would ever finish it. Ask it of the engine: does any operation scan the whole corpus per item? A tool that is fine at 1,245 documents and quadratic is indistinguishable from a fast one until it isn't.
+- **3. Data-not-code, applied to the chamber.** L1's defect turned out to be artifacts minted **before the governors landed**, which the governors cannot retroactively fix. The chamber accumulates the same way: **is there graduated content that predates the current constitution/runbook and would fail today's gates?** If so, the analogue of `cm-ctl repair` is a re-graduation pass — and the chamber's `resolve_archived_source` pinning is what would make it replayable.
+- **4. Method transfer: profile the running thing, don't reason from the spec.** An afternoon of spec-reading produced a clasp that could not have helped; `sample` → CDP inspector → `EXPLAIN QUERY PLAN` found the real cause in under an hour.
+- **5. Still open from Part IV, and now better motivated: facets as the formalism for Chamber V1.** A Chamber release *is* a facet over an unversioned corpus; fork/replay/diff/promote dissolve the stuck "which purpose anchors V1" decision. Today's L1 replay is a live demonstration that replay-from-immutable-origin actually works, which is the same move.
+
 **Other horizons, ranked.**
 - **Load-bearing, Seb's call:** `getChainsContainingSeq` is a `json_each` membership scan over every chain (**4.0 s/call** at 813k) — unindexable as written; needs `event_seqs` normalised. The rebuild buys headroom, not immunity; the complexity class is unchanged.
 - **Load-bearing, ours:** `governance-drift-check.py` 3-of-5 inert — owed to PENDING as `[HARDENING]`, not yet filed. The ladder's unrecordable firing history is the same shape one level up.