Jamjet Policy
FreeNot checkedDrop-in stdio interceptor that gates MCP tools/call requests through a YAML policy (block / require_approval / audit / budget cap) before they reach the real se
About
Drop-in stdio interceptor that gates MCP tools/call requests through a YAML policy (block / require_approval / audit / budget cap) before they reach the real server. The same policy file is reused by @jamjet/claude-code-hook and @jamjet/openai-guardrail, so one rule set covers Claude Desktop, Cursor, OpenAI Agents, and custom clients.
README
The portable policy layer for AI agent actions.
One policy file. One audit trail. Across hooks, guardrails, MCP gateways, SDKs, and custom runtimes.
Packages
- @jamjet/claude-code-hook — JamJet policy as a Claude Code PreToolUse hook
- @jamjet/openai-guardrail — JamJet policy as an OpenAI Agents SDK guardrail
- @jamjet/mcp-shim — JamJet policy as an MCP stdio interceptor
- @jamjet/cli — Unified
audit show+approveacross all adapters
All four adapters share a single policy.yaml format and a single audit JSONL schema.
See conformance/ for the spec these adapters all satisfy.
Installing Jamjet Policy
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/jamjet-labs/jamjet-policyFAQ
Is Jamjet Policy MCP free?
Yes, Jamjet Policy MCP is free — one-click install via Unyly at no cost.
Does Jamjet Policy need an API key?
No, Jamjet Policy runs without API keys or environment variables.
Is Jamjet Policy hosted or self-hosted?
Self-hosted: the server runs locally on your machine via the install command above.
How do I install Jamjet Policy in Claude Desktop, Claude Code or Cursor?
Open Jamjet Policy on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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