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Garry TanandClaude Opus 4.6
7e98739a6b
Final wiring of BrainBench v1 Complete. all.ts now orchestrates the full
Cat catalog (1-12) via a mix of subprocess dispatch (Cats 1, 2, 3, 4, 6,
7, 10, 11, 12 — standalone runners with CLI entry points) and
programmatic invocation (Cats 5, 8, 9 — require runtime inputs that
can't come via CLI flags). Subprocess Cats run concurrently under a
p-limit(2) bound to cap peak memory around ~800MB (two PGLite instances
at ~400MB each).
Cats 5/8/9 show as "programmatic" in the report with a one-line
reference to their `runCatN({...})` harness API. They're deliberately
skipped from the master runner because their inputs (claim catalog,
probe catalog, scenario catalog, pre-seeded agent state, evidence
pagesBySlug) are task-specific and assembled at the caller.
**eval/runner/all.ts** — rewritten:
- CATEGORIES is a tagged union of SubprocessCategory | ProgrammaticCategory
- runCatSubprocess spawns Bun with pipe'd stdout/stderr, 10-min timeout
per Cat (124 exit + SIGTERM on timeout; no hung subprocesses)
- runConcurrently is a bounded worker pool preserving input order
- buildReport emits the full markdown with per-Cat elapsed times,
migration-noise filter, and a separate programmatic-only section
- Honors BRAINBENCH_N (1/5/10 for smoke/iteration/published),
BRAINBENCH_CONCURRENCY (default 2),
BRAINBENCH_LLM_CONCURRENCY (default 4, consumed by llm-budget)
**eval/runner/llm-budget.ts** — shared LLM rate-limit semaphore. A full
N=10 published scorecard makes ~900 Anthropic calls (150 Cat 8/9 probes
× N=10 + 100 Cat 5 claims × N=10). Without coordination, concurrent
adapters trigger 429s on per-minute limits.
- LlmBudget class: acquireSlot/releaseSlot + withLlmSlot(fn) wrapper
that releases on success AND throw (try/finally)
- getDefaultLlmBudget() singleton reads BRAINBENCH_LLM_CONCURRENCY,
falls back to 4 on missing/garbage values
- capacity enforced ≥1 (rejects 0/negative)
- Double-release is a no-op (guards against upstream double-call bugs)
- Active + waiting counts exposed for observability / tests
**package.json** scripts:
- eval:brainbench — default N=5 iteration
- eval:brainbench:smoke — N=1 for fast iteration
- eval:brainbench:published — N=10 for committed baselines
- eval:cat6 / eval:cat11 — individual new subprocess Cats
**Tests (24):** CATEGORIES catalog enforces the exact Cat-number partition
(subprocess: 1,2,3,4,6,7,10,11,12; programmatic: 5,8,9). runConcurrently
respects the cap (observable via peak in-flight counter), preserves input
order under non-uniform delays, handles empty input. LlmBudget enforces
capacity, releases on throw, honors env var, rejects 0/negative.
buildReport filters migration noise, counts passed/failed/programmatic
correctly, includes every Cat + programmatic-only section.
Full eval suite now: 314 pass, 0 fail (15 test files).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>