closes MEDIUM/LOW from feat/agent-dna-three-layer audit:
- models.toml: cache_write_1h_per_mtok_micro added to all 11 entries
(Anthropic: 200M/600M/1000M micro = $2/$6/$10 per MTok per pricing page;
other providers: 0 placeholder)
- main.rs (kei-model-router): WAL pragma + busy_timeout errors now logged
to stderr instead of silently dropped (previously .ok() swallowed both)
- models.toml: Haiku id pin TODO documented (router still hardcodes alias)
Codex CRITICAL + 4 HIGH + 5 MEDIUM/LOW from RULE 0.23 dual-review and
RULE 0.25 multi-critic swarm — all closed.
CRITICAL fix
- Model::slug() ledger compatibility: posterior.rs + select_kernel.rs
query `WHERE model = ?2 OR model = ?3`, binding canonical + legacy
slug pair via new `Model::legacy_slug()`. Production ledger rows
written under "haiku"/"sonnet"/"opus" remain visible to posterior
aggregation. Regression test ledger_legacy_slug_counted.
HIGH fixes
- cmd_select(): no longer early-returns on profile match. Profile's
default_model_ref now becomes DecisionInput.fallback; select() always
runs, posterior/kernel evidence wins if present. RULE 0.20 cost
optimisation restored for all 18 registered agents.
- Registry pricing SSoT: DecisionInput now carries Option<Arc<Registry>>.
estimated_cost() tries registry first; hardcoded match is documented
fallback only. select_posterior.rs no longer duplicates models.toml
constants.
- registry.rs portability: include_str!() embeds the three TOMLs at
compile time. load_embedded() new; disk path tried first via
KEI_REGISTRIES_DIR, embedded as fallback. `cargo install`d binaries
now find registries unconditionally. embedded_registry_matches_disk
test ensures embedded ≡ disk source.
- next_model() ambiguity: replaced Option<&Model> with EscalationResult
enum (Next(&Model) / AtTop / NotFound). Callers can distinguish typo
from ceiling. 5 new tests.
MEDIUM fixes
- posterior.rs u32 overflow: `(n_plus + n_minus) as u32` →
`u32::try_from(n_plus.saturating_add(n_minus)).unwrap_or(u32::MAX)`.
overflow_guard_on_huge_n test with i64::MAX.
- pick() unknown-model: now returns None when default_model_ref's model
is absent from registry. Inverted the deprecation guard.
- HOME unset: disk_registries_dir() returns None on empty HOME and
falls through to embedded registries. open_ledger() logs warning
and returns None instead of opening at malformed path.
- SQLite WAL + busy_timeout: applied to ledger connection in
open_ledger() — concurrent CLI invocations no longer SQLITE_BUSY.
LOW fixes
- impl Model consolidation: next_tier() moved to pricing.rs.
escalate.rs uses current.next_tier() instead of duplicating logic.
- complexity.rs: removed duplicate "ml-implementer" in HEAVY_ROLES.
- dna_class.rs: role("") now returns None instead of Some("").
Verification (orchestrator-side, RULE 0.13 §Verify-before-commit):
- cargo check → clean
- cargo test --release → 63 passed / 0 failed (was 58 → +5 new tests
cover legacy-slug, EscalationResult, overflow, unknown-model, embedded)
- Constructor Pattern → all files ≤ 200 LOC (max registry.rs 196)
- Largest fn from_ledger 28 LOC / limit 30
DNA-INDEX.md regenerated by kei-registry hook (cosmetic).
=== STATUS-TRUTH MARKER ===
shipped: functional
stubs: 0
cargo-check: PASS
behaviour-verified: yes
follow-up-required:
- (none from this commit; next audit pass before merge to main)
