root 47776b07cd auditor: 2 fixes from kimi_architect on ebd9ab7 audit
The auditor's own audit on commit ebd9ab7 produced 10 kimi_architect
findings; 2 are real correctness issues that this commit lands. The
other 8 are documented in the commit body as triaged-skip with
rationale (false flags, defensible by current intent, or edge cases).

LANDED:

1. auditor/index.ts — atomic state mutation on audit count.
   `state.audit_count_per_pr[prKey] += 1` was held in memory until
   the cycle's saveState at the end. If the daemon was killed mid-
   cycle (SIGTERM, OOM, panic), the count was lost on restart while
   the on-disk last_audited still showed the SHA as audited — the cap
   silently leaked one audit per crash. Fix: persist state immediately
   after each successful audit so the increment survives a crash.
   saveState is idempotent + cheap (single JSON write); per-audit
   cost negligible.

2. auditor/checks/inference.ts — Number-coerce mode runner telemetry.
   `body?.latency_ms ?? 0` collapses null/undefined but passes through
   non-numeric values (string, NaN, etc.) which would poison downstream
   arithmetic in maxLatencyMs computation. Added a `num(v)` helper
   that does `Number(v)` with `isFinite` fallback to 0. Applied to
   latency_ms, enriched_prompt_chars, bug_fingerprints_count,
   matrix_chunks_kept.

SKIPPED with rationale:

- WARN kimi_architect.ts:211 "metrics appended even on empty verdict":
  this is intentional — observability shouldn't depend on whether
  parseFindings succeeded. Comment in the file explicitly notes this.
- WARN static.ts:270 "escaped-backslash-before-backtick edge case":
  real but extremely narrow (Rust raw strings with `\\\\\``). No
  observed false positives in production audits; defer.
- INFO kimi_architect.ts:333 "sync existsSync in async fn": existsSync
  is non-blocking syscall on Linux; not a real perf hit at audit
  scale (10s of findings per call).
- INFO kimi_architect.ts:105 "audit_index modulo wraparound at 50+
  audits": cap=3 means we never reach high counts on any PR.
- INFO inference.ts:366 "prompt injection delimiter risk": OUTPUT
  FORMAT delimiter is in our prompt template, not user input; user
  data goes inside content sections that don't contain the delimiter.
- WARN Cargo.lock:8739 "truth+validator no Cargo.toml in diff":
  false flag — Cargo.toml IS in workspace members (lines 17-18 of
  the workspace manifest).
- WARN config/modes.toml:1 "no schema validation": defensible — the
  load path validates structure (deserialize_string_or_vec at
  mode.rs:175) and falls back to safe default on parse error.
- INFO evidence_record.ts:124 "metadata accepts any keys": values are
  constrained to `string | number | boolean`; key-name validation
  not warranted for a domain-metadata field.

The 13 BLOCK-severity inference findings on this audit are all
"claim not backed" against historical commit messages from earlier
in the branch (8aa7ee9, bc698eb, 5bdd159, etc.). Those are
aspirational prose ("Verified end-to-end") that the deepseek
consensus can't verify from a static diff — known limitation, not
actionable as code fixes.

Verification:
  bun build auditor/index.ts                     compiles
  bun build auditor/checks/inference.ts          compiles
  systemctl restart lakehouse-auditor            active

Cap remains active on PR #11 (3/3) — daemon will not audit this
fix-commit. Reset state.audit_count_per_pr.11 to verify the fixes
land clean on a fresh audit when ready.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-27 07:45:40 -05:00
..

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:

  1. Static diff — grep/parse looking for placeholder patterns
  2. Dynamic — runs the never-before-executed hybrid test fixture
  3. Cloud inference — asks gpt-oss:120b via /v1/chat to identify gaps in the diff
  4. 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 PR
  • data/_auditor/verdicts/{pr}-{sha}.json — per-run verdict record
  • data/_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

  1. Commit status is posted as failure with context lakehouse/auditor
  2. If main branch protection requires lakehouse/auditor status to pass, Gitea prevents merge
  3. 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"]}}