Comma

Use Comma with Factory Droid

Droids take whole tickets and come back with a result. The result is often a document — a migration plan, an incident writeup, a code review — and Comma gives it a URL with anchored comments the next Droid session can read.

Add Comma to Factory Droid

User: ~/.factory/mcp.json. Project: .factory/mcp.json (Factory's docs warn against committing secrets there).

{
  "mcpServers": {
    "comma": {
      "type": "http",
      "url": "https://commareports.com/api/mcp",
      "headers": {
        "Authorization": "Bearer ${COMMA_API_TOKEN}"
      }
    }
  }
}

Replace comma_sk_… with a token from Settings → API tokens → New token on Comma (or export it as COMMA_API_TOKEN where the snippet reads an env var). The default scopes — reports:write, comments:read, comments:write — cover publishing and review.

droid mcp add comma https://commareports.com/api/mcp --type http --header "Authorization: Bearer comma_sk_…" --no-oauth

Factory Droid gotchas

  • Pass --no-oauth. Otherwise Droid attempts OAuth against a server that authenticates with a static token.
  • Use ${COMMA_API_TOKEN} in .factory/mcp.json if the file lives in a repo.
  • Loop comments back in: ask the Droid to list_comments on the report before starting the next iteration.

What the agent can do

Capability Tools
Publish a report create_report, update_report, create_report_from_url
Find existing reports list_reports, search_reports, get_report, read_report
Leave / reply to comments add_comment, reply_to_comment, set_comment_status, list_comments
Ask for review, share request_review, set_report_sharing, get_report_signoffs
Manage assets upload_report_asset, list_report_assets, delete_report_asset

Droid picks the tool from the request — there are no Factory Droid-specific commands to learn.

A workflow that sticks

  1. Ask Droid to write up the work as a self-contained HTML report and publish it to Comma. It calls create_report and returns a link.
  2. Send the link. Reviewers open a rendered page and leave comments anchored to the exact line, cell or chart they mean — no account needed to read a public link.
  3. Next session, ask Droid to address the comments. It reads the threads with list_comments, ships a revision with update_report (same URL), replies, and resolves them.

Reports belong to your workspace, not to the agent. A report published from Factory Droid can be revised tomorrow from Claude Code or Cursor, and the link people bookmarked keeps working.

Token shape

  • Lives in ~/.factory/mcp.json, or read from COMMA_API_TOKEN in a project file.
  • Scoped — you choose which actions it can take when you create it.
  • Revocable in one click from Settings → API tokens; revocation applies immediately to the REST API, the MCP server and any routines the token created.
  • Rate-limited per token.

Details in API tokens → and Scoped tokens for AI agents →.

Try it

Add the entry, generate a token, restart Factory Droid, and ask for a report on something you worked on today. Then leave a comment on it and ask the agent what it sees.

Generate a token →

Related