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Bouncer

A judgment layer for agents that starts with Claude Code: a PreToolUse hook asks a YAML policy you own a handful of plain-English questions about every proposed tool call, and Jev returns calibrated probabilities so thresholds — not a frontier LLM — decide allow, deny or silence, for about four cents a day.
Stars
1
Language
TypeScript
License
MIT
Reading time
3 min
Published by
Community
Author
clownware
Last verified
Oct 2026

clownware/bouncer

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Jev-powered Judgment layer for Claude Code. Stops paying reasoning prices for if-statements: a PreToolUse hook scores every tool call against a YAML policy you own — allow / deny in ~100 ms, no LLM in the loop. TypeSafe Jev now, local models next. Dry-run by default, calibration table published.

Forks
2
Last pushed
Updated Oct 2026

Repo stats from the GitHub API, cached Oct 2026.

Highlights

  • A PreToolUse hook scores every Claude Code tool call against a YAML policy you own — plain-English questions, numeric thresholds, no frontier LLM in the loop.
  • Seven questions ride one Jev call for about four cents a day, against the reasoning prices for if-statements the README describes.
  • seatbelt mode is silent until one of nineteen deterministic rules matches something never okay, like printing a private key or running git stash clear.
  • bouncer judge runs a policy over a file or directory, producing a judgments log and an escalation manifest naming which items failed which criteria, at what p.
  • The plugin is at 0.2.9: the gate (v0.2) and the batch judge (v0.3 in the PRD's roadmap) have shipped, and install is two commands.

Watch out

Grounded on the truncated repo README and GitHub metadata (TypeScript, MIT, 2 forks, pushed 2026-10-13) read on 2026-10-15. The excerpt cuts off inside a feature list, so the remaining parts of the judgment layer beyond the YAML policy are not covered, and the accuracy figures are the project's own live calibration run against Jev on the shipped policy.

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