Install with HOL Guard, which checks the HOL listing and asks before each runtime:

hol-guard plugin install mvikmanners/aw1-circuit-breaker --apply

Get HOL Guard with pipx install hol-guard or uv tool install hol-guard.

AW-1 Circuit Breaker

Deterministic sub-0.2ms AST security circuit breaker for autonomous AI agents, tool dispatch pipelines, and MCP servers.

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⚡ 10-Second Test Drive (Zero-Install)

Test the circuit breaker live in your terminal right now without installing anything:

uvx aw1-circuit-breaker --demo

Or verify an arbitrary snippet:

uvx aw1-circuit-breaker verify "subprocess.run(['rm', '-rf', '/'])"

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AW-1 Circuit Breaker

Deterministic AST deconstruction and runtime circuit breaker preventing rogue shell escapes, dynamic eval(), and covert lateral socket egress in autonomous LLM tool calls.

Installation

pip install -r requirements.txt

Running the Server

Run directly with Python:

python mcp_server.py

Or via uvx:

uvx mcp_server.py

MCP Client Configuration

{
  "mcpServers": {
    "aw1-circuit-breaker": {
      "command": "python",
      "args": ["mcp_server.py"]
    }
  }
}

Exploit Interception in Action