8aa7ee974f
Smart-routing in kimi_architect: default model (Haiku 4.5 by env, or
Kimi K2.6 if not set) handles normal PR audits cheap and fast; diffs
above LH_AUDITOR_KIMI_OPUS_THRESHOLD_CHARS (default 100k) get
promoted to Claude Opus 4.7 for the audit.
Why this split: the 2026-04-27 3-way bake-off (Kimi K2.6 vs Haiku 4.5
vs Opus 4.7 on the same 32KB diff, all 3 lineages, same prompt and
grounding rules) showed Opus is the only model that:
- escalates severity to `block` on real architectural risks
- catches cross-file ramifications (gateway/auditor timeout
mismatch, cache invalidation by env-var change, line-citation
drift after diff truncation)
- costs ~5x what Haiku does per audit (~$0.10 vs $0.02)
So: pay for Opus when the diff is big enough to have those risks,
stay on Haiku when it isn't. 80% of refactor PRs cross 100KB; 90% of
single-feature PRs don't.
New env knobs (all optional, sensible defaults):
LH_AUDITOR_KIMI_OPUS_MODEL default claude-opus-4-7
LH_AUDITOR_KIMI_OPUS_PROVIDER default opencode
LH_AUDITOR_KIMI_OPUS_THRESHOLD_CHARS default 100000
(set very high to disable)
The threaded `provider`/`model` arguments through callKimi() so the
same routing also lets per-call diagnostic harnesses run different
models without touching env vars.
Verified end-to-end:
small diff (1KB) -> default model (KIMI_MODEL env), 7 findings, 28s
big diff (163KB) -> claude-opus-4-7, 10 findings, 48s
Bake-off report at reports/kimi/cross-lineage-bakeoff.md captures
the full comparison: which findings each lineage caught vs missed,
3-way consensus on load-bearing bugs, recommended model-by-diff-size
table.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Lakehouse Claim Auditor
A Bun sub-agent that watches open PRs on Gitea, reads the ship-claims in commit messages and PR bodies, and hard-blocks merges when the code doesn't back the claim.
Rationale: when "compiles + one curl works" gets called "phase shipped," placeholder code accumulates. This auditor runs every 90s, fetches each open PR, and subjects it to four checks:
- Static diff — grep/parse looking for placeholder patterns
- Dynamic — runs the never-before-executed hybrid test fixture
- Cloud inference — asks
gpt-oss:120bvia/v1/chatto identify gaps in the diff - KB query — looks up
data/_kb/+ observer for prior failure patterns on similar claims
Verdict is assembled, posted to Gitea as:
- A failing commit status (hard block — branch protection prevents merge)
- A review comment explaining every finding
Run manually
cd /home/profit/lakehouse
bun run auditor/index.ts
Defaults: polls every 90s, stops on auditor.paused file present.
State
data/_auditor/state.json— last-audited head SHA per PRdata/_auditor/verdicts/{pr}-{sha}.json— per-run verdict recorddata/_kb/audit_lessons.jsonl— one row per block/warn finding, path-agnostic signature for dedup. Tailed by kb_query on each audit to surface recurring patterns (2+ distinct PRs with same signature → info, 3-4 → warn, 5+ → block). This is how the auditor learns.data/_kb/scrum_reviews.jsonl— scrum-master per-file reviews. If a file in the current PR has been scrum-reviewed, kb_query surfaces the review as a finding with the accepted model and attempt count.
Where YOU edit
auditor/policy.ts — the verdict assembler. Controls which findings
block vs warn vs inform. All other code is mechanical: fetching,
running checks, posting to Gitea.
Hard-block mechanism
- Commit status is posted as
failurewith contextlakehouse/auditor - If
mainbranch protection requireslakehouse/auditorstatus to pass, Gitea prevents merge - When code is fixed and re-audit passes, status flips to
success, merge unblocks
Enable branch protection (one-time, via Gitea UI or API):
POST /repos/profit/lakehouse/branch_protections{"branch_name": "main", "required_status_checks": {"contexts": ["lakehouse/auditor"]}}