Repo · Safety & guardrails
jevc
Compile natural-language agent rules (and JSON Schema) into TypeSafe Jev programs: narrow typed questions plus a code-owned reducer/verdict you can…
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Compile agent policy prose into deterministic verdict programs: narrow evidence questions for the model, the verdict computed in code. Install: npm i -g jev-compiler
agent-securityagentsai-agentsai-safetyai-sdkclaude-codeclideterministicdeveloper-toolsguardrailslangchainllmllm-guardrailsllm-securitypolicy-as-codepolicy-engineprompt-injectiontool-callingtypesafetypescript
How builders describe it
Compile agent policy prose into deterministic verdict programs: narrow evidence questions for the model, the verdict computed in code. Install: npm i -g jev-compiler.
Compile natural-language agent rules (and JSON Schema) into TypeSafe Jev programs: narrow typed questions plus a code-owned reducer/verdict you can diff and unit-test—aimed at hooks, tool gates, and policy-as-code.
Compiler that turns ignored markdown rules into testable Jev gates: typed questions answered with probabilities plus a reducer computing allow, ask, or deny in code. Ships with offline replay fixtures and Claude Code hook wiring.
The decision Jev makes
Allow, flag or escalate a message, tool call or action.
Where it fits
Screening messages, tool calls and outputs before they cause trouble. Jev gives a fast, calibrated verdict that can sit in front of every request or agent action. All 229 safety & guardrails projects →
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