Slice SB-S1 (Ingest + gold signal): manual import → ingest/published/ with
provenance=published; wire voice-trainer to learn from published-only (the
model-collapse guard). Brief + plan hardened through light-Voyage:
brief-reviewer (PROCEED_WITH_RISKS), plan-critic (REVISE 63→folded),
scope-guardian (GAP→folded). Key decisions: verbatim-body content hash (no
normalizeContent, avoids silent data loss), one pinned record separator with a
round-trip edge battery, gate-enforced published-only lint, S1/S2 boundary held
(no profile.md mutation in S1). Operator-approved scope; version bump to 0.5.1.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RigJBiRFNtFZKCz21qNbQ4
SB-S0 (Foundation) of the second-brain arc: a new TS package scripts/brain/
(structural copy of specifics-bank) establishing the spine later slices hang on.
TDD throughout (failing test first); fold scope = P1+P2 only per operator decision.
- types.ts: one provenance vocab (human|published|ai-draft) + the six-field
ProfileFact record + two-layer ProfileDoc.
- id.ts: slugify + mintEntityId (sha256[:12], kind-namespaced, slug-keyed so the
id is stable across value edits) + normalizeProvenance (throws on unknown). [SC4]
- profile.ts: no-YAML line-grammar parse/serialize (parse∘serialize = identity over
the whole doc; values may contain ]/|/quotes) [SC2] + foldUserProfile: lossless,
idempotent, source-absent-aware fold of config/user-profile.template.md. Pinned
extraction — P1 labeled scalars (group-headers skipped, [placeholder]→empty) + P2
expertise group; stops at "### Research Tooling" so deferred explainer prose can't
leak in as fields. Checkbox-prefs (Goals/Tone/MCPs/Assets) deferred (§8). [SC3]
- dataRoot.ts: inline per-package resolver (repo idiom; no new seam → SC6).
- scaffold.ts/cli.ts: idempotent `brain init` — brain/{index,profile,operations}.md
+ journal/ + ingest/{inbox,published} under the data-dir; compare-then-skip, never
clobbers a user edit. No session-start wiring (SB-S2 owns it). [SC1]
Gate: new BRAIN floor in test-runner.sh (34 tests; trends/specifics/contract floors
unchanged) + anti-erosion floor 74→75. Full gate 90/0/0, tsc --noEmit clean. [SC5/SC6]
No new command/agent/reference → no version bump, no structure-count change.
Refs docs/second-brain/{brief,plan-sb-s0,architecture}.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RigJBiRFNtFZKCz21qNbQ4
Light-Voyage process artifacts for the first second-brain slice (SB-S0):
- brief.md — task brief, revised after adversarial brief-review (B1 fold-source
premise, B2 pathguard claim [later verified: STATE was right, reviewer wrong],
M1 floors-as->=, M2 scaffold trigger, M3 grammar contract, M4 runtime-only).
- plan-sb-s0.md — SB-S0 implementation plan, revised after adversarial
plan-review (plan-critic + scope-guardian, both code-verified):
B1 test convention -> real TS idiom (tests/*.test.ts via tsx, .js specifiers);
M2 profile format -> defined line-grammar (repo has no YAML parser, no dep);
M3 data-root -> inline per-package resolver (repo idiom, not a new seam);
M4 fold extraction rule pinned against the actual user-profile template;
+ minors (gate-count rationale, npm-install-before-gate, provenance throws,
stable-slug id, push-confirm).
scope-guardian: zero creep, zero MAJOR gap. plan-critic: B1+3 MAJOR, all folded.
Design phase, no code yet — awaiting operator go to build SB-S0 (TDD).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RigJBiRFNtFZKCz21qNbQ4
Persist the operator-approved second-brain architecture design and the three
parallel research threads that fed it, so nothing is lost before build:
- architecture.md — approved design: thin Markdown `brain/` hub (two-layer
profile.md + episodic journal/ + operations.md + index.md MOC) over the
existing typed tributaries (voice/specifics/trends/analytics), a
provenance-tagged ingest/ seam, a sleep-time consolidation loop with
evidence-threshold promotion + temporal-validity + anti-sycophancy/
anti-collapse invariants. Build sequence SB-S0..S4.
- research/connector-egress.md — LinkedIn data egress reality (EU/EEA DMA
portability API = auto for content; analytics manual CSV; no scraping).
- research/secondbrain-sota.md — 2026 second-brain / AI-memory SOTA synthesis.
- research/silo-inventory.md — faithful inventory of the 12 existing per-user
silos + the 5 hardest unification problems.
Boundary confirmed: engine -> plugin (domain-general), user data -> data dir,
cockpit -> Maskinrommet. Design phase, no code yet.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RigJBiRFNtFZKCz21qNbQ4
