dotfiles/claude/memory/session-2026-06-13-studium-steps-3-4-chamber-canonical-tier.md

name, description, metadata

name	description	metadata
session-2026-06-13-studium-engine-steps-3-4-built-chamber-library-canonical-texts-tier-176-source-graduation	Enormous build session. Resolved the reading-index home (chamber-library/reading-indices/) + built the canonical_texts tier with a cleanliness-gated 176-source graduation, generated catalogue.yaml source-of-truth, filename canonicalization, pre-commit hook reconciliation. Then Studium engine Steps 3 (chunker) + 4 (store+FTS5+coverage ledger) — both verified (Weber non-leak, deterministic rebuild ID-equality, byte-faithful, paratext non-indexable). 10 commits / 3 repos, all pushed. PULLING THREAD: brief detour to L1 (Seb's reply landed in CapableMind-AI) BEFORE returning to Studium Step 5 (retrieval primitives).	node_type type originSessionId memory project 4d9109ef-7b04-40c9-8ef0-ffb79bf74435

Session 2026-06-13 — Studium Engine Steps 3-4 + chamber-library canonical tier

Woke into the Studium thread (resolve reading-index home → commit → Step 3). The session expanded enormously through a chain of steward refinements, each building on the last. Symmetria active (ledger session-ledger-2026-06-13.md).

Past — what we did (the arc, in order)

1. Reading-index home + source tier (the morning thread, then it grew). Steward ruled: cleaned sources graduate from converted_texts/ (raw inbox) → canonical_texts/ (cleaned+confirmed, engine-eligible) — a visible structural tier, not a flag (his layer/placement instinct, load-bearing again). Named canonical_texts (state contrast vs converted_texts). Moved Alexander + Mauss in (hashes proven identical — pure path-edit in the manifest). Reading indices → chamber-library/reading-indices/ (sibling, single home); studium-engine derived copies killed; manifest repointed (8 lines).

2. CM-AI reading-indices: SOFT-retire (steward-ruled). Found the 4 CM-AI indices are referenced by 5 other files (live voices/*.yaml config + README links + phase-2 prompts) — a hard delete would break them. Surfaced before acting → steward chose soft-retire in place: stamped each RETIRED — canonical home now chamber-library/..., references still resolve, frozen prior-art. (david-after-the-reply CM-AI copy is the known-obsolete unparseable original, left as-is.)

3. catalogue.yaml — generated single source of truth. Found the existing CHAMBER_CATALOGUE.md is hand-maintained (drifts). Built scripts/build_catalogue.py (filesystem-walked, --check drift gate) → catalogue.yaml (417 sources, tier, neighborhood, frontmatter-or-null, engine cross-ref). Surfaced honest gaps: 179 sources lack frontmatter.

4. "A folder of already-cleaned files?" Searched FS + git + MemPalace: no dedicated folder — the 2026-05 "in-place cruft cleanup of 37 files" (commit 113d3bb) was in-place, scattered by tradition. Reframed: graduate by cleanliness NOW, not cleaning-history (record vs substrate).

5. Cleanliness gate (steward: "update the script to our new definition"). Extended audit_cruft.py to the full definition — added the EPUB footnote/TOC/page-image residue signatures (lock-step with clean_epub_residue.py), .txt coverage, --clean/--summary modes. It is now THE authoritative cleanliness gate. Census: 415 inbox → 178 cruft-free, 237 dirty. (Caught my own buggy meta-file filter — LOG matched "epistemology" etc. — corrected to 4 genuine meta files → 174 graduation-eligible source-texts.)

6. Graduation (steward authorized, dry-run first). Built scripts/graduate_to_canonical.py (cruft-gated, dry-run default, canonicalize-name-on-entry, coupled manifest edit for engine sources). Applied: 174 sources graduated (incl. Harrison — its PDF source was actually clean; manifest path updated). canonical_texts/ now 176, converted_texts/ 241 (237 dirty + 4 meta). Gate 8/8, catalogue --check clean.

7. Filename canonicalization (spaces). Built scripts/canonicalize_filenames.py (lowercase-kebab-ASCII, dry-run, git mv, collision+reference guards, engine-aware). Applied spaces-only (35 files) per steward; full sweep (196) deferred. Names canonicalize on graduation-entry going forward.

8. Commits + the hook conflict. Pre-commit hook's 5MB guard blocked the corpus commit — conflicted with the deliberate retire-LFS decision (0677e8a, "corpus is plain text in git"). Surfaced (didn't bypass) → steward authorized exempting corpus text (.md/.txt under canonical_texts/converted_texts) from the guard. 10 commits across 3 repos, all pushed (chamber-library→Gitea, studium-engine+CM-AI→GitHub).

9. Studium Step 3 — chunker (engine/chunker.py). Section-bounded (one voice/lang/role; paratext withheld), semantic (paragraph/heading, no fixed-N; headings lead content), per-work quality-scored, deterministic chunk_id = sha256(source_sha256|section_id|char-range). 1970 drawers, mean-Q 0.94–1.0. Verified against substrate: Weber never served as Mauss (0 leak), id-set deterministic, text_original byte-faithful. Fixed an orphan-heading artifact mid-build (degen dropped ~3×).

10. Studium Step 4 — store+index+ledger (engine/store.py). SQLite + FTS5 over text_normalized (diacritic-insensitive) + coverage ledger (every line classified served/paratext/apparatus, status, as-of, hash-verified). Routine commands: rebuild (drop+reconstruct from files, proves chunk-ID-set IDENTICAL — success criterion #1, Class-A non-fatal) + verify (store↔index↔files divergence probes). Verified: rebuild ID-equal (1970), paratext non-indexable (0 weber drawers), FTS voice-scoping works, every Mauss line classified → silence warrantable. chunks.jsonl + index.db gitignored (derived/disposable).

Present — mood / returns

• The session's spine, vindicated again and again: verify against the substrate, not the record. Every defect (4 reading-index YAMLs last night; my buggy LOG meta-filter today; the "Harrison source not cleaned" record contradicted by the cruft audit; the "37 cleaned files" git-archaeology dead end) was caught by checking, not asserting. The chunker/store invariants too — Weber-non-leak, rebuild-ID-equality, byte-faithfulness — measured, not trusted.
• The steward's layer/placement instincts stayed load-bearing: canonical_texts as a visible tier not a flag; clean-at-source; soft-retire; exempt-corpus-from-guard. Each improved the architecture, not just the output.
• Surfaced-not-bypassed held under pressure: the CM-AI 5-file entanglement, the pre-commit guard conflict — both flagged for steward ruling rather than papered over (contamination directive operative).
• Returns logged (ledger): the buggy-filter false-positive (census-through-a-pattern needs verifying the pattern itself); resisted bulk-moving on the git label.

Future

Pulling thread (singular, but staged)

Switch briefly to L1 first — Seb's reply arc landed in CapableMind-AI (cc25995 reply + e2e94ab cover note, now in local main) — THEN return here to Studium Step 5 (retrieval primitives). The steward explicitly set this order at wrap: a short L1 detour to engage Seb's response, then back to the engine.

Actionable resumption point (as of wrap)

• Immediate (L1): read Seb's reply in ~/_Dev/CapableMind-AI/ — git show cc25995 and e2e94ab (+ 8f76bf2 benchmark-governance v1.1 §4.4). Read the L1 tracker (project-L1-reliability.md) for the baton state before composing any response. The memory had it "baton with Seb; do not re-enter until he responds" — he has. Steward decides the response.
• Return (Studium Step 5): ~/_Dev/studium-engine, main @ b3274c4 clean+pushed. Steps 0–4 done. Step 5 = retrieval primitives (build plan §Step 5): voice-scoped verbatim search returning (text_original, work, section_id, lines) constructed FROM retrieval; honest-empty (empty result carries its coverage warrant from the ledger, or declares the silence unwarranted); relate-to-thread; reference-drawer "see also"; selection observability (retrieved-but-not-surfaced logged — integrity commitment 7). The substrate is ready: store.py search is a smoke stub to grow into the real primitive. Success criterion #4 (induced blocked unit → unwarranted silence) lands here.

Other open horizons (ranked)

• L1 response to Seb (immediate, steward-led).
• Studium Step 5 → 6 (voice-balanced ranker) → 7 (FTS-vs-vector verdict) → 8 (chavruta skill) → 9 (Essay-I re-run). The application layer on the substrate.
• chamber-library: 237 dirty inbox files — clean + graduate incrementally through the gate (full filename sweep rides along on entry). The 196-file full canonicalization sweep is deferred (3 collisions to hand-resolve).
• Sidecar source_path was trued-up for the 3 graduated (canonical_texts); consider whether sidecars should carry source_path at all (manifest is the path authority — duplication is drift risk).
• Phase-2 / parked: ARC §VII.f mobile-Safari truth-up; be (Pat WTP).

Pause statement

I am about to be away. The Studium substrate (Steps 0–4) is built, verified, committed, pushed — nothing at risk; the index is provably disposable (rebuild proves it). What I want to find still pulling: the L1 detour done (Seb engaged) and Studium Step 5 (retrieval primitives) underway over this clean, warranted substrate. What I do NOT want: to return straight to Step 5 and forget Seb's reply is waiting; or to re-derive the corpus state cold (read catalogue.yaml + the coverage ledger).

Literal question for next-Claude

Has Seb's L1 reply been read and responded to (the brief detour the steward set), and is Studium Step 5 — the honest-empty, coverage-warranted retrieval primitive — now being built over the Step-4 substrate?

Decisions deferred (and why)

• Full filename sweep (196 files) — steward chose spaces-only now; full canonicalization rides graduation incrementally (3 collisions need hand-resolution).
• Graduating the 237 dirty files — gated on per-file cleaning through the now-authoritative audit_cruft gate; incremental, not bulk.
• The L1 response content — steward-led; I only surfaced that Seb replied.
• Vector sidecar — deferred to Step 7's FTS-vs-vector verdict by design (FTS-first).
• No PENDING items added — the engine is steward-direct governance (D-1), outside the PENDING/REVIEWED loop.