CalibratedDecisions.

Repo · Safety & guardrails

pi-jev-sentinel

Add TypeSafe Jev checks for coding-agent tool calls, tool outputs, and replies—shipping as a Pi extension plus a shared Claude Code / Codex CLI hook.

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From the repository

Pi coding-agent extension: TypeSafe Jev checks for tool calls, tool outputs and replies (prompt injection, approvals, secret scrubbing, task pinning)

How builders describe it

Jev Sentinel: an open-source Pi coding-agent extension built on Jev ▎ • Scans files and command output for prompt injection before the agent reads them ▎ • Flags replies that pass on injected instructions ▎ • Fetches the extra context Jev asks for before bothering you ▎ • Scrubs secrets from…

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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