Works with the agent you already use.
Six tested configs. Any MCP client with a bearer header works.
Agents
Claude CodeClaude Code reads the comment, opens the file the selector points to, fixes it and replies in the thread, in one session.
CodexCodex gets every client comment with its page, selector and device, so a vague note becomes a precise task.
CursorCursor's agent reads your client's comments next to your code and edits the component the selector points to.
GitHub CopilotCopilot's agent mode reads Margin comments in VS Code and fixes the code, with the token kept out of your repository.
WindsurfCascade reads Margin comments and edits the code they point to, with your token read from the environment.
Gemini CLIGemini CLI pulls your client's comments into the terminal session and works from the selector and screenshot.- Claude (connector)Find Margin in the Claude directory, press Connect and approve it in the browser. No token needed, and your feedback opens as a board in the chat.
Another MCP client? Use its bearer-header option with the endpoint and a token from the token guide.