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io.github.rudimentall1/agent-guardrail

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Publisher-provided description

Deterministic policy firewall for AI agent tool calls - YAML rules, not a fuzzy risk score.

Summary by lookupd

Lets an agent check its tool calls against YAML-defined policy rules before they run, blocking disallowed actions deterministically.

Install

Claude Code, pypi package (stdio)

claude mcp add agent-guardrail -- uvx guardrail-mcp

Codex, pypi package (stdio)

codex mcp add agent-guardrail -- uvx guardrail-mcp

Cursor, pypi package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "agent-guardrail": {
      "command": "uvx",
      "args": [
        "guardrail-mcp"
      ]
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

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