Enforce CLAUDE.md With Jev
The build uses Jev to check Claude’s final replies and edits against rules in CLAUDE.md. It sends violations back to Claude to fix in the same turn.
erkamyaman in r/JevAI@erkamyaman
I used Jev to make Claude actually follow my CLAUDE.md, checked on every turn in ~350ms
CLAUDE.md is context, not a constraint. It holds for a few turns, then a handler shows up with raw SQL in it and a failing test quietly becomes it.skip. Nothing checks the output against the rules you wrote. So I added the check. A Stop hook takes the final reply, a PostToolUse hook takes each edit, and every rule in your CLAUDE.md becomes one typed yes/no question in a single Jev request. All rules answered in parallel, anything over the threshold goes back to Claude with the rule quoted, and it fixes it in the same turn. Benchmark (59 labeled examples, 19 rules): 93.3% precision, 93.3% recall, 348ms p50, ~$0.045 per 1,000 checks. What it's bad at is in the repo too: exact characters, dataflow rules l
A Stop hook checks final replies, and a PostToolUse hook checks edits. The author reports benchmark results from 59 labeled examples covering 19 rules.
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