zn

What it does

AI agents execute tool calls driven by untrusted text. zn is a local-first gate that fuses deterministic rules with a tiny neural classifier to flag prompt injection in <5ms on CPU. Prompts never leave your machine. MCP-native. Evals published, warts and all.

The local security layer for coding agents: guards your secrets, data and systems in Claude Code, Codex CLI, Cursor and OpenCode. Free, MIT.

zn-gate is the local security layer for coding agents. It guards your secrets, your data and your systems while you use Claude Code, Codex CLI, Cursor or OpenCode. Free, MIT, no account. On your machine: no account · 0.045 ms p50 per check (200 B) · hooks for 4 agents: Claude Code, Codex CLI, Cursor, OpenCode Optional cloud: Galvanize 2, 83.4% recall at 0.81% false positives (3,309 held-out examples) Everything runs on your machine. Nothing leaves it unless you turn on the cloud check. On that optional check, detected secrets are removed on your machine first; personal data is not removed. Your agent works with typed placeholders like __ZN_AWS_KEY_1__ . The real value is injected only where…from usezn.com

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