session 2026-07-28: touchstone wired into the grounding read-list (now four docs, why first)

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WuMjg3ipEVa3n8CoSzoyvc
2026-07-28 13:44:17 +02:00
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-**Steward directive, 2026-07-28 (evening):** *"any time we do chamber work or speak of it, ideally you would read the constitution, charter and ground yourself in our runbook. If we need to expressly ensure that that happens, then let's find a good way to do so next session as well."*
+**Steward directive, 2026-07-28, 13:30 CEST:** *"any time we do chamber work or speak of it, ideally you would read the constitution, charter and ground yourself in our runbook. If we need to expressly ensure that that happens, then let's find a good way to do so next session as well."*

-**The three grounding documents:**
+**The four grounding documents — read in this order:**
+- **Touchstone (the why)** — `~/_Dev/studium-engine/docs/the-chamber-touchstone.md` (est. 2026-07-28). **First, and it is one page.** The three below are *operational*; none of them says what any of it is for. Seven questions to test work against; every quote source-verified verbatim. It holds no state, so it does not decay.
 - **Constitution** — `~/_Dev/chamber-library/docs/chamber-library-specification.md` (currently v2.8.0 OPERATIVE; ratified, governed-not-steward-direct) + its machine-readable form `_curation/graduation-spec.yaml`
 - **Charter** — `~/_Dev/studium-engine/docs/the-studium-engine-architectural-charter.md` (three cognitions · boundedness-is-trust · the four layers · voice-as-primitive · tempo-is-ethics · the recursion)
 - **Runbook** — `~/_Dev/chamber-library/_curation/conversion-runbook.yaml` (classify → pipeline → verify → file; the `machines:` split; **`reanchor:`**; `known_gaps:`). Note: it does **not** yaml-parse (`decision_tree:` arrows) — it is human-read.

-**Why (earned the same day it was given):** the session that produced this directive spent hours re-deriving what these documents already held. Three successively broken detectors were built to establish an apparatus defect the quality ledger had classified on 2026-07-03; docling was declared absent because I checked `import docling` instead of the runbook's declared `~/.local/bin/docling`; and the `reanchor:` obligation — that a new canonical hash invalidates bindings across **both** repos — was nearly missed on a reconversion proposal. The steward's correction was two words: *"read the runbook?"*. See [[feedback-resurface-banked-notes-before-rederiving]], of which this is the chamber-specific, stronger form: not *resurface if you recall a note exists*, but **read these three, always, before acting or opining**.
+**Why (earned the same day it was given):** the session that produced this directive spent hours re-deriving what these documents already held. Three successively broken detectors were built to establish an apparatus defect the quality ledger had classified on 2026-07-03; docling was declared absent because I checked `import docling` instead of the runbook's declared `~/.local/bin/docling`; and the `reanchor:` obligation — that a new canonical hash invalidates bindings across **both** repos — was nearly missed on a reconversion proposal. The steward's correction was two words: *"read the runbook?"*. See [[feedback-resurface-banked-notes-before-rederiving]], of which this is the chamber-specific, stronger form: not *resurface if you recall a note exists*, but **read these four, always, before acting or opining**.

 **Scope is deliberately wide — "or speak of it."** The directive covers *discussing* the chamber, not only editing it. Today's cost was largely in confident talk: scope numbers stated three times with three different figures (42 → 84 → 69), only the last from a real tool.

 **How to apply, until a mechanism exists:**
- Entering chamber/engine work — or being asked *about* the chamber — read all three before the first substantive claim, not after the first correction.
+- Entering chamber/engine work — or being asked *about* the chamber — read all four before the first substantive claim, not after the first correction.
 - The repo `CLAUDE.md` files are **pointers, not state** (both say so explicitly). Read them for orientation, then read what they point at.
 - A claim about corpus state comes from a **tool with a passing self-test** (`audit_corpus.py --validate`), never from a hand-rolled grep.

-**Enforcement — owed, steward asked for it to be designed next session.** The precedent exists: the `verify-before-compose` PreToolUse hook already **blocks** chamber constitutional writes lacking a `<!-- GROUNDED-IN: … -->` attestation ([[feedback-verify-before-compose-hook]]). Candidate shapes: (a) extend that hook's path scope from *constitutional writes* to *any chamber-library / studium-engine write*; (b) a wake-up conditional in the shape of the existing telos conditional; (c) a `/chamber` skill that loads the three and attests the read. Surfaced in the skill-harvest register 2026-07-28. **Design it before relying on discipline alone** — session-start prose has failed this class ≥4 times before, which is exactly why the existing hook was built.
+**Enforcement — owed, steward asked for it to be designed next session.** The precedent exists: the `verify-before-compose` PreToolUse hook already **blocks** chamber constitutional writes lacking a `<!-- GROUNDED-IN: … -->` attestation ([[feedback-verify-before-compose-hook]]). Candidate shapes: (a) extend that hook's path scope from *constitutional writes* to *any chamber-library / studium-engine write*; (b) a wake-up conditional in the shape of the existing telos conditional; (c) a `/chamber` skill that loads the four and attests the read. Surfaced in the skill-harvest register 2026-07-28. **Design it before relying on discipline alone** — session-start prose has failed this class ≥4 times before, which is exactly why the existing hook was built.

 **Companion concern, steward-raised the same turn:** *"I hope the overarching vision of what we aspire the chamber to become is in one place and queryable."* **It is not** — see [[project-chamber-vision-is-not-in-one-place]].