Closes review asks from cross-review of C4:
- Jobs ask #2: team-building.en.md still referenced the bash+fetch
pattern for goal creation. Rewritten as a deferred-tool note pointing
to C5 follow-up, without re-teaching the HTTP shape C4 just removed.
- Karpathy ask #1 (partial): re-recorded manager-task-handoff against
main to produce post-C4 positive evidence. VP Engineering has
hire_agent available via canRequestHire, but when directed NOT to
hire, the recorded trace shows task decomposition only (no
hire_agent invocation). 455 in / 769 out tokens; assertions updated
to pin /api/task/create + agent_ic_ slugs + p99 substring + max 3
turns. The `non-ceo-dm-reply` re-record is deferred to the follow-up
ticket.
- Karpathy asks #2, #3, #4 + Jobs asks #1, #3, #4: documented in
docs/proposals/C4-followup.md with concrete completion criteria.
Scope covers canFileCeoStrategy predicate, non-ceo-dm-reply
re-record, RFC 8594 Deprecation/Sunset headers + counter, and a
negative substring assertion kind for the eval harness.
Eval still green at 8/8. C4 main batch (e2c839b..8e99e01) stands
unchanged; this commit is pure follow-up groundwork.
This is the verification artefact for the C4 refactor (e2c839b through
03864f3). The old fixture (recorded at 1d0cfa2, scenario asked the model
to POST hire_agent requests via bash+node+fetch) captured the model
emitting `node -e 'fetch(\`http://...\`)'` — exactly the antipattern
Jobs called out.
Post-C4 scenario was updated to reflect the new world: the CEO now has
explicit hire_agent and file_approval tools. Re-recording against
anthropic/claude-sonnet-4-5 produced 509 in / 731 out tokens and the
assistant response:
- Contains `hire_agent` (pseudo-XML tool invocations, one per hire)
- Contains `file_approval` with type=approve_ceo_strategy
- No `node -e` / bash+fetch / HTTP POST pattern anywhere
- 3-5 hires as requested, single approval block
Assertions updated to pin the post-C4 tool names as positive signals.
Absence of bash/fetch is demonstrated by diff against 1d0cfa2 (see that
commit's recorded JSONL for the before state).
Eval harness now green at 8/8 (3 self-tests + 5 recorded fixtures) with
this new baseline. Any future regression that reverts CEO bootstrap to
HTTP-path prompts will fail all three hire_agent / approve_ceo_strategy /
file_approval assertions.
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.
Unblocks the march-of-nines third nine. Up until this commit `tests/eval/`
had a harness + self-tests but zero real traces; the fixture directory was
a documented stub. These two fixtures are genuine single-turn recordings
against anthropic/claude-sonnet-4-5 produced by `pnpm eval:record` — not
mock data, not placeholder — each one captures an actual API response
with its token ledger.
Coverage:
- ceo-bootstrap-empty: empty company, CEO bootstrap trigger. Asserts the
model produces hire_agent POSTs, an approve_ceo_strategy POST, and uses
bash+fetch (current prompt pattern before C4 lands).
- ceo-board-message-reply: operating CEO with a live team, inbound Board
message. Asserts the model hits mark_read, posts to
/api/agent_message/send, and keeps the original message_id in scope.
What these fixtures now enable:
- B2 Phase 2 switch-read: a fixture diff before/after the cutover
demonstrates dual-write parity is real, not assumed.
- C4 initial-user-turn refactor: the current HTTP-path-in-prompt pattern
is captured; after C4 lands, the diff shows whether tool-shape
refactoring regressed behaviour.
- C7 prompt-builder conditional assembly: same, but for system-prompt
slimming.
- M7 Phase 2 call-site switch: resolveCeoMode cutover can be regression-
verified against both traces.
Scenarios live at tests/eval/scenarios/<id>/{system.txt,user.txt} so any
maintainer can re-record the same trace with one command and diff against
the committed fixture. Each fixture's assertions block currently contains
four assertions; pnpm test:eval passes with 5 (3 harness self-tests + 2
real-fixture runs).
ZacharyZhang-NY