Cairn Jev Lab

No extraction, rewriting, storage, retrieval or deletion. You supply source and candidate, and a save result is only a recommendation that still needs an explicit adapter before any memory writes.

Support asks if the source supports the candidate, durability if it helps a future session, and commitment if proposals and uncertainty are preserved. Admission-v1 uses a 0.75 confidence threshold.

At threshold 0.40 Jev saved 39 of 50 intended memories and Luna saved 41 of 50, both with zero false saves among 50 non-save labels. The digest calls this a pilot, not a production quality claim.

Clone, run node src/cli.mjs for the 20-case preview with no key, or start the local server for four recorded cases. Live evaluation needs TYPESAFE_API_KEY and your own input JSON of 1 to 20 cases.

A frozen set of 100 source and candidate pairs across five categories, labelled and protocol fixed before any call, each evaluated once. At the 0.75 baseline the decision matched the expected label 59 times in 100, at the 0.40 preview 78. Intended memories saved went from 18 of 50 to 38 of 50 with zero false saves in both, and correctly deferred expectations fell from 1 of 10 to 0 of 10. All 100 calls completed with a mean of 264 ms, median 246 ms and p95 346 ms, client-observed and including network time.

No. Expected labels are optional, included so you can measure agreement with your own policy, and the optional why notes are never sent to Jev. That is the point of the design: the model sees the source and the candidate and nothing about the answer you think it should give. Every case is validated before any API request goes out, and an input file holds 1 to 20 cases.

Cairn Memory is the memory project; this lab investigates the admission decision before storage and does not write to it. An integration would need an explicit adapter and validation before any production memory writes. From a checkout you can import judgeMemory from ./src/index.mjs and get back decision, reason and answers for one real API call. Node 22 and newer, no runtime dependencies, MIT licensed, and the repo is not published as an npm package.