A lockless npm project (e.g. glance, 2015) resolved an unpinned transitive range to the
latest major ([email protected] -> mime@4, which dropped .lookup()), so the built app crashed
serving files -- a build-reproducibility defect, not an app or agent fault. The executor
now, for the npm-install (no-lock) case only and only when .git is present, resolves
dependencies as of the checkout's HEAD commit date via `npm install --before <date>`,
giving era-appropriate, compatible versions. npm ci (lockfile present) is untouched, and
any git/date failure falls back to plain install. demo.py also recognizes
npm-shrinkwrap.json as a lock for the ci-vs-install choice.
Tests: executor + smoke 75 passed, demo 107 passed; ruff clean; mypy clean on executor.py.
Executor-side change -> image rebuild required.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Built projects spool to /workspace without package caches (cap 1 GiB, both
sides); a plain-text model reply is fed back once; mailbox PUT/GET retry for up
to 90 s with idempotent re-send by seq; executor tasks are deleted on every exit
path.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
Reasons carry type plus a sanitised message tail; command failures carry phase,
exit code and bounded stderr. Scratch walk tolerates directories pip removes
mid-walk; writable /workspace/home and runtime paths. Capacity retries delete a
possibly created task before resubmitting. Docker smoke checks the image first.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Demos are data the verifier executes (fixed build recipes, runtime+path start,
HTTP/CLI steps with captures; the canary is never referable). The agent loop with
the key never runs repository code: executor tasks without a key exchange commands
and results through presigned objects. AX capacity errors are back-pressure with at
most 2 tasks in flight; caches and builds under /workspace with a 2 GiB guard;
verifiers take one presigned archive per side. Launcher fix: private /dev in bwrap.
190 tests on the host; probe 5/5 demonstrated.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
