session 2026-06-12: Studium Engine Stage-1 planning charter + Fable[1m] routing decision; ARC running-head mobile-Safari gap parked (opt i); skill-harvest proposals

claude/memory/MEMORY.md

@@ -38,6 +38,9 @@ permalink: claude-memory/memory
 - [Be (laundromat)](project-be-laundromat.md) — canonical workstream tracker established 2026-06-08 (Seb-relay of locked decisions). Be = Skemantix startup (Seb+David) funding CapableMind's funding-ladder; **bridge, not venture**. Decisions LOCKED: entity/exit (CapableMind decoupled, grant-funded), pricing (Living $12.99/mo · Archive $69.99/yr · Memorial $49.99/yr · Renovate ~$199 · $8.99 floor), CF Self-Serve Agency + versioned-template-package infra. **a11y gate MERGED (Pat 100/100/100).** Pre-revenue: the WTP gate = renovate Pat → charge her. **Discipline: stop adding spec until the gate clears → nothing for executor on be until then.** Repo @ `f43a0fd`.
 
 ## Active Session
+- [Session 2026-06-12 — Studium Engine Stage-1 planning charter; ready for Fable[1m]](session-2026-06-12-studium-engine-planning-charter-fable-handoff.md) — Read both core engine docs (bridge doc + seed brief — reconciled, they agree); steward ruled **governance** (steward-direct now, Jurist later for scholarly Qs only), **§10.3** (Markdown body + `.meta.json` sidecar canonical; TEI optional later tier, not Stage 1), **method** (middle path — thin Cluster-A spec now, then just-in-time slice). Decided **cost-aware model routing** (Fable[1m] for the bounded planning phase, Opus for the build; grounded in the verified Fable-5 2× burn) + wrote a scope **CHARTER** `~/_Dev/studium-engine/docs/stage-1-planning-brief-2026-06-12.md` on Opus to bound the Fable session (read §3 list → produce **Cluster-A spec** + **Stage-1 build plan** → stop). Rejected "query the graph not files" (= the index-as-source-of-truth shape the engine refuses). Also diagnosed the **ARC §VII.f running-head mobile-Safari gap** (parked, option i): `@supports(animation-timeline:view())` is a **leaky gate** — `true` on iOS Safari 26 but WebKit won't drive the scroll reveal on a `fixed`+`timeline-scope` consumer (display:block, opacity 0); desktop Safari works; the spec's "no-support shows nothing" fallback is **false on mobile WebKit** → ~5-min spec truth-up owed at next ARC touch (`project-arc-open-work-register.md`). **PULLING THREAD: execute the charter on Fable[1m] → 2 artifacts → switch back to Opus to build. RESUMPTION: clear → wake → `claude-fable-5[1m]` high-thinking → "read the charter and go" (do NOT cold-re-derive).**
+
+## Archived (2026-06-11 — §VII.f running head SHIPPED + ARC open-work register)
 - [Session 2026-06-11 — §VII.f running head SHIPPED + the ARC open-work register (records drift BOTH ways)](session-2026-06-11-vii-f-running-head-shipped-arc-open-work-register.md) — Woke into the essay; steward pivoted to **§VII.f — the one ready-to-build apparatus never shipped.** BUILT it (zero-JS CSS `view-timeline` reveal; per-type `content-types.yml` binding; progressive-enhancement fallback) through a long render-rulings refinement: **body-column-axis alignment** (the −2rem grid asymmetry; grid tokens moved `_sidenotes`→`_variables` byte-identical), **soft fading rule** (`$rh-fade`), **full-width occluding ground with the dissolve anchored below the rule** (`$rh-dissolve`) — every step headless-Chrome-measured, not theorized. **W1.15 false premise surfaced not papered** (frontispiece doesn't scroll) → reframed scroll→**presence-reveal** (zero-JS cursor-approach; touch rests gently-present). Shipped `b220620`, deployed, **live-verified**; specs reconciled; PENDING-39 / REVIEWED-43 (steward-placed). **THEN the deeper arc:** steward corrected my "§VII.f = the *only* unbuilt element" overclaim → **the colophon is SHIPPED** (I misread a stale index line — 3rd stale-index misread of the turn) → **records drift BOTH ways** → built **[`project-arc-open-work-register.md`](project-arc-open-work-register.md)** (single code-verified source of truth); annotated the tracker (true only through 06-07) + corrected MEMORY's stale "no build work pending" tail. **Steward caught the cul-de-lampe** (§IV Close ornament SVG, undesigned → A2). "One more audit": register [VERIFY] flags resolved (E3 404 / E5 master-typographer / E6 web-typography → DONE-retire; **B3 ornament migration → OPEN, ~95 content files, gated on A2**). **Pulling thread: the register is the map; the two undesigned-SVG assets — A1 Vignette (F+1) + A2 cul-de-lampe — are the real remaining build; which one, or the deferred essay, is next.** ARC `main @ b220620` clean, live. **LATE-SESSION PIVOT → THE STUDIUM ENGINE** (steward's urgent tool; Fable-5 window to 2026-06-22): deliberately completed the picture before touching the build — the engine = general BYO-corpus deep-research substrate, built by first **powering the Chamber** (his instance + forcing function; Library→Chamber→Publication); the MemPalace 2-class failure taxonomy (integrity/corruption FATAL→killed by file-authoritative shape · density-dilution=Stage-2); the design law **"silence must carry a coverage warrant"** (reliability is *constitutive* of the Chamber's honesty — a false silence is a fabricated finding); FTS-first (reading-indices=70% of intelligence → may retire the HNSW failure class); Partner+Guardian-now / Professor-Emeritus-later prototype boundary. CAPTURED: **`~/_Dev/studium-engine/docs/the-chamber-and-the-engine-2026-06-11.md`** (bridge doc; uncommitted, for review). **PULLING THREAD IS NOW the Studium Engine Stage-1 build plan** — next session (on v5): read the bridge doc → revisit `seed-brief.md` + `chamber-chavruta-prototype-plan.md` against it → resolve §10.3 (canonical source format) → plan the build (Harrison·Alexander chavruta on *After the Reply* Essay I). ARC settled/reactive; its open work lives in `project-arc-open-work-register.md`.
 
 ## Archived (2026-06-10 — Stage G CLOSED + reconciled + SEALED + GPG-signed)