ctxfw for Claude Code

io.github.heuristicolab/ctxfw

Zero-egress AI Agent Firewall: SARA prompt injection defense, AST context pruning & MCP governance.

client:Claude Code transport:stdio runtime:pypi

Install ctxfw in Claude Code

run in your project directory

claude mcp add ctxfw -- uvx ctxfw

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs