Document Armorer Guard MCP proxy

[armorer-labs]

Adds a short optional configuration example showing how to wrap a stdio MCP server with armorer-guard mcp-proxy -- ....

This gives mcp-agent users a local guardrail path for checking MCP tool-call arguments for prompt injection, credentials, exfiltration risk, and dangerous actions before forwarding the call to the underlying server.

[coderabbitai]

📝 Walkthrough

Walkthrough

README.md is updated with a configuration example demonstrating how to wrap the filesystem MCP server command using Armorer Guard. The addition shows replacing the direct npx @modelcontextprotocol/server-filesystem`` invocation with an armorer-guard mcp-proxy -- wrapper to route tool calls through the guard mechanism.

Changes

Armorer Guard Filesystem Integration Documentation

Layer / File(s)	Summary
Filesystem server command wrapping with Armorer Guard README.md	Configuration example added showing how to wrap the filesystem MCP server using armorer-guard mcp-proxy -- wrapper in mcp_agent.config.yaml.

Estimated Code Review Effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Suggested Reviewers

• saqadri
• StreetLamb

Poem

A rabbit reads the docs with glee,
Guard wraps the files, now safe and free,
mcp-proxy shields with armor bright,
Configuration guides see the light,
One line of change, simplicity's might! 🐰✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'Document Armorer Guard MCP proxy' directly matches the PR's main objective of adding documentation for wrapping MCP servers with Armorer Guard.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}