Agent feedback loop

diffle ships explicit review skills for Codex and Claude Code that drive a review through a local MCP server. Both integrations need the diffle command on your PATH — see Installation.

Install the integration

Claude Code

claude plugin marketplace add codywilliamson/diffle
claude plugin install diffle-review@diffle-local --scope user

Then start a new Claude Code session (or run /reload-plugins).

Codex

codex plugin marketplace add codywilliamson/diffle
codex plugin add diffle-review@diffle-local

Then start a new Codex task — existing tasks don’t reload newly installed skills/MCP servers.

The review loop

1. Ask the agent Review my current changes with diffle.

2. Leave line/file comments and choose Return Feedback.

3. Return to the agent and say continue.

4. The agent replies and re-review requests appear in diffle — choose Refresh diff from the notice to load new changes.

5. Verify, reply in a thread or resolve, then approve or return more feedback. Asking for more after approval reopens the same review.

Caution

If the agent can’t start the diffle MCP server, run diffle --version in the same shell. If it’s missing, fix your PATH (re-run the installer) and start a fresh agent session. If you previously installed the loupe-review plugin, run diffle doctor — it detects the stale plugin and repairs it with --fix.

Running the MCP server directly

The MCP server can also be run directly:

diffle mcp serve

See MCP tools for the full tool list.