release: 0.9.2.3 — run it before you ship it

[0bserver07]

Cuts 0.9.2.3. Two user-reported bugs and the checklist change they forced.

The bugs

chimera code took 5.1 s to reach its prompt. create_provider imported all ten built-in provider modules — and the anthropic (445 ms) and openai (247 ms) SDKs with them — to construct one. Lazy lookup: 1942 ms → 566 ms on the box that hit it, 3.4×.

Quitting dumped a traceback after "Bye!" — asyncio.run re-raises when a Ctrl+C lands during shutdown, so a clean exit rendered as a crash.

Why the name

0.9.2.2 was verified after publish: clean venv outside the repo, correct version inside and out, fixes confirmed present in the wheel. Every assertion true — and it exercised nothing a user does first. Both defects were one command away.

Playbook 14 and CLAUDE.md now require launching the entry point, timing it, and SIGINT-ing it, on a machine that is not the dev box.

The first version of that gate was itself half-blind: chimera code < /dev/null raises EOFError, not SIGINT, so it exits 0 and silent on the exact build that crashes on Ctrl+C. Corrected to require both lines.

First release through the stricter gate — and it passed on its own terms

check	result
time to prompt	0.79 s
SIGINT on quit	no traceback
all-extras suite	11,032 passed / 79 skipped
CI posture	10,515 passed / 133 skipped
cold mypy	736 files, 0 errors
trademark scrubs	7/7
claims + hygiene	140 passed

Single local failure is test_validation_split, documented as env-sensitive locally and green in CI.

Release notes: docs/releases/0.9.2.3.md.

After merge

Tagging v0.9.2.3 publishes to PyPI. Held for explicit confirmation as usual.

🤖 Generated with Claude Code