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Claude Code and Codex hooks that record edits and checks in an append-only ledger, flag a "done" claim without a passing check after the last code edit, and use optional Jev Noul judgments for advisory rule checks or to recognize a non-completion message; its default gate allows a repeated stop after warning, the author has not measured project-wide quality gains, and enabling Jev sends clipped diffs, project rules, and final messages to TypeSafe.
Experimental decision-based agent protocol with a Jev adapter, immutable evidence frames, typed assessments, and application-guarded commits; the local reference app simulates domain effects, and opt-in live mode sends decision evidence to TypeSafe.
Coding agent harness that can use Jev to select a model and effort, route bounded utility tasks, and judge what context to retain. Code constrains the choices and validates utility results; failed or low-confidence decisions leave the normal path in place. Jev does not decide tool permissions, and routing can send the user's request and recent steps to the configured endpoint.