Phase 4 of substrate-unified-registry: turn on the existing
kei-model-router by changing manifest defaults from `model = "opus"`
to `model = "sonnet"` for routine agents, and give every git branch
a deterministic DNA in the kei-status dashboard.
The model-tier system was BUILT (`_primitives/_rust/kei-model-router/`
crate with Beta posterior, complexity τ-estimator, escalate ladder,
calibrate subcommand) and the advisor hook
(`~/.claude/hooks/model-router-advisor.sh`) was REGISTERED. But every
ledger row from this session ran on Opus because:
1. All 38 manifests hard-coded `model = "opus"` → no chance for the
router to recommend cheaper.
2. The orchestrator (me) ignored the stderr advisory.
This commit closes (1). (2) is a behavioural change tracked separately.
Manifest reclassification (4 Opus + 34 Sonnet):
Opus (hard reasoning):
- architect (system-design synthesis)
- ml-implementer (Math-First paradigm)
- ml-researcher (literature analysis)
- security-auditor (deep risk synthesis)
Sonnet (everything else):
- 8 code-implementer-* + code-implementer
- 5 critic-* + critic
- 6 infra-implementer-* + infra-implementer
- 4 researcher-* + researcher
- 6 validator-* + validator
- 3 security-auditor-{differential,supply-chain,variant}
- cost-guardian, fal-ai-runner, frontend-validator, modal-runner
Regenerated all 38 `_generated/*.md` so the YAML frontmatter `model:`
field matches the manifest.
Branch DNA (kei-registry status):
- New `compute_branch_dna(name, commit_sha)` in `status.rs`. Format
`branch::<sha8(name)>::<sha8(commit)>`, mirrors kei-shared
DNA wire layout `<role>::<caps>::<scope_sha8>::<body_sha8>`.
- Deterministic — same `(name, commit)` → same DNA. Changes when
either changes. No DB persistence: the underlying truth lives in
`.git/refs/heads/<name>`.
- 3 new unit tests cover format, determinism, name-change, commit-
change. `cargo test status::tests` → 10 passed.
`kei-registry status` output now shows DNA prefix per branch alongside
ahead/behind, last commit. Combined with existing per-block DNA in the
[Blocks] and [Path Atoms] sections + `dna` column on `agents` table in
kei-ledger, every artefact in the dashboard has an identifier:
Atoms (incl path-atoms) → atom::<caps>::<scope>::<body> (registry)
Skills/Rules/Hooks/Prim → <role>::<caps>::<scope>::<body> (registry)
Agent forks → row.dna in agents table (ledger)
Local branches → branch::<sha8>::<sha8> (computed)
What this does NOT do:
- No outcome backfill — the 205 NULL outcomes in ledger still prevent
the Beta posterior from learning. Router falls back to top-tier
until ≥1 datapoint per (task_class, model) accumulates. Tracked as
follow-up.
- No post-checkout hook to auto-register branches in kei-ledger. Live
shell-out to `git for-each-ref` is fast enough for the dashboard;
persistence buys nothing the .git tree doesn't already give.
=== STATUS-TRUTH MARKER ===
shipped: functional
stubs: 0
cargo-check: PASS
behaviour-verified: yes
follow-up-required:
- Outcome backfill hook (writes outcome to ledger after agent done)
- User /model claude-sonnet-4-6 for current session (5x cheaper)
- Push the orchestrator (me) to read advisor stderr in real-time
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase 1 of substrate-unified-registry: move all references to user
home memory/rules out of plain strings and into content-addressable
path atoms. Public artefacts now contain opaque `{path::NAME}/file.md`
references; the actual home prefix lives only in the path-atom file's
frontmatter, registered in the local kei-registry.
NEW path atoms (`_blocks/path-*.md`):
- `path-user-memory.md` → template `~/.claude/memory`
- `path-user-rules.md` → template `~/.claude/rules`
Both files use frontmatter `type: atom, kind: path, template: ..., expand_at: render`.
BlockMdScanner auto-registers them; DNA index shows them under their
unprefixed names (`user-memory`, `user-rules`) for human lookup, while
the body sha8 makes them content-addressable.
Resolver (`_assembler/src/registry_client.rs`):
- `is_path_atom(conn, name)` — checks DB by name + filename convention
(`_blocks/path-<name>.md`) + frontmatter `kind: path`. Defensive:
filename + frontmatter must BOTH agree.
- `frontmatter_has_kind_path(body)` — minimal YAML parser. Tolerates
CRLF, quoted values, rejects substring matches (`pathological` ≠ `path`).
- 5 unit tests cover positive + 4 negative cases.
Resolver wire-up (`_assembler/src/assembler.rs:147 write_references`):
- For each `references.extra` entry starting with `path:NAME/...`:
- Lookup `NAME` via `is_path_atom`.
- On success: emit `{path::NAME}/<suffix>` — opaque, kit-resolvable.
- On miss: stderr warn + passthrough. Never fatal.
- Non-`path:` refs pass through unchanged. Backward compatible.
- 2 unit tests cover passthrough paths.
Manifest migration (38 manifests touched):
- `~/.claude/rules/<file>` → `path:user-rules/<file>`
- `~/.claude/memory/<file>` → `path:user-memory/<file>`
- 96 references migrated; 1 prose-style reference in security-auditor
left as plain text (lives inside a domain_in description, not in
references.extra — out of scope for this resolver).
Regenerated 38 `_generated/*.md` + 1 new `frontend-validator.md`.
Regenerated `docs/DNA-INDEX.md` (now includes 2 path-atoms by name).
Verification (cited):
- `git ls-files | grep denisparfionovich` → 0 hits outside allowlist
(NOTICE/README byline + `.github/workflows/leak-check.yml` detection
rule).
- `_generated/` contains 99 occurrences of `{path::user-...}/`.
- assembler tests: 29 passed (5 new). kei-registry tests: 10 passed
(8 short_path from earlier commit + 2 unrelated).
- assembler resolver verified end-to-end: ml-implementer.md line
479-485 shows `{path::user-rules}/ml-protocol.md` etc.
What this does NOT do (deferred):
- No registry-DB schema change. Path atoms ride existing Atom block-
type via convention, not via new `BlockType::PathAtom` variant.
- No git-branch tracking (Phase 2 of plan).
- No `kei-registry status` cross-cutting CLI (Phase 3 of plan).
- No path-atom orphan detection CLI (Phase 4).
The path:user-memory and path:user-rules cover 100% of the username-
leak surface from the current manifest set; future categories
(kit-root, registry-db, sync-repo, secrets-env, project-root) can
land additively without architectural changes.
=== STATUS-TRUTH MARKER ===
shipped: functional
stubs: 0
cargo-check: PASS
behaviour-verified: yes
follow-up-required:
- Phase 2 (git-branch tracker hook)
- Phase 3 (kei-registry status subcommand)
- Phase 4 (orphan detection CLI)
- Sync user-side install: ~/.claude/agents/_manifests/ still has
pre-migration absolute paths; will pick up new format on next
`install.sh --add` (out of scope for this commit).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
