These are the role×trigger tripwires Karpathy required before C4 can
ship: covering IC / manager / non-CEO paths, not just the two CEO
fixtures from 1d0cfa2. Together they act as the cross-role regression
net — any C4 change that breaks hire_agent tool registration or
prompt shape across role tiers will now surface as an assertion
failure, not a silent production drift.
Fixtures recorded against anthropic/claude-sonnet-4-5 via the user's
Claude Max OAuth token (read from macOS keychain, not committed):
- ic-task-execute (364 in / 1425 out): IC receives task t_1138,
expects task id + filename in the response and a mark_complete
intent within 3 turns.
- manager-task-handoff (457 in / 1022 out): VP Engineering decomposes
CEO p99 directive into IC-sized tasks; expects /api/task/create
calls, references to agent_ic_* slugs, and the "p99" term.
- non-ceo-dm-reply (357 in / 545 out): VP Product handles a peer DM
with blocking ETA ask; expects mark_read + /api/agent_message/send
+ message id preserved.
Total spend ~3.7k tokens; pnpm test:eval --run now green at 8/8
(3 harness self-tests + 5 recorded fixtures).
With these tripwires in place, C4 (hire_agent / file_approval tool
uplift + initial-user-turn rewrite) can proceed without the previous
"only CEO path has a baseline" blind spot.
Eval fixtures
Every file in this directory is a recorded trace of a real AgentCompany turn against a real LLM provider. Fixtures are recorded-truth, not synthesized mock data — the distinction is what keeps the B5 harness on the "fixture, not fallback" side of the roundtable line.
File format
Each fixture is a .jsonl file with one JSON object per line:
- First line: a
{ "type": "meta", ... }record (seeFixtureMetain../types.ts). - Middle lines: one
{ "type": "turn", "turnIndex": N, ... }record per conversation turn, in order.turnIndexis strictly increasing from0. - Last line: a
{ "type": "assertions", "assertions": [...] }record with the expected behavior contract.
The loader rejects files that do not match this shape. No silent skipping.
Recording workflow
pnpm eval:record -- \
--fixture-id ceo-team-building-empty \
--scenario "Empty company, CEO bootstrap" \
--out tests/eval/fixtures/ceo-team-building-empty.jsonl \
--system-prompt-preview "$(cat /tmp/current-system-prompt.txt)"
The current CLI writes a stub meta + empty assertions. The full recorder
(which drives pi-agent-core against a real provider using the
AgentCompany worker's system prompt and tool registry) lands in a
follow-up commit — see ../README.md for the B5 roadmap.
Committing fixtures
Fixtures belong in git. They are small, deterministic, and the whole point
of the eval tier is to diff behavior against recorded truth. Do NOT add
tests/eval/fixtures/ to .gitignore.
Fixtures are excluded from the electron-builder production bundle; see
electron-builder.yml (the files glob only picks out/**, so tests/
never enters the packaged .asar).