# Use Comma with GitHub Copilot CLI — copilot mcp add in one line

Canonical: https://commareports.com/mcp/copilot-cli
Published: 2026-09-16

> Add Comma to GitHub Copilot CLI with one copilot mcp add command, or a type http entry in mcp-config.json. Copilot can publish HTML reports and answer review comments.

# Use Comma with GitHub Copilot CLI

Copilot CLI already has the GitHub MCP server for issues and PRs. Some work doesn't fit a PR comment — a coverage review, a dependency audit, a long investigation. Add Comma and Copilot publishes those as a page with anchored comments, then links it wherever you want.

## Add Comma to GitHub Copilot CLI

User config: `~/.copilot/mcp-config.json`. Project config: `.mcp.json` at the repo root, or `.github/mcp.json`.

```json
{
  "mcpServers": {
    "comma": {
      "type": "http",
      "url": "https://commareports.com/api/mcp",
      "headers": {
        "Authorization": "Bearer comma_sk_…"
      },
      "tools": ["*"]
    }
  }
}
```

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.

One line:

```bash
copilot mcp add --transport http --header "Authorization: Bearer comma_sk_…" comma https://commareports.com/api/mcp
```

Inside a session, `/mcp add` walks through the same fields, including headers.

## GitHub Copilot CLI gotchas

- **`tools: ["*"]`** exposes every Comma tool. List specific names (`["create_report", "update_report"]`) for a publish-only setup.
- **Don't commit the token in `.mcp.json`.** Use the user-level config for anything with a credential in it.
- Pair it with the GitHub MCP server: Copilot publishes the report to Comma, then links the report URL in the PR description.

## 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`       |

Copilot CLI picks the tool from the request — there are no GitHub Copilot CLI-specific commands to learn.

## A workflow that sticks

1. Ask Copilot CLI 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 Copilot CLI 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 GitHub Copilot CLI can be revised tomorrow from Claude Code or Cursor, and the link people bookmarked keeps working.

## Token shape

- Lives in `~/.copilot/mcp-config.json`, a user-level 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 →](/docs/api-tokens) and [Scoped tokens for AI agents →](/agents/scoped-tokens-for-ai-agents).

## Try it

Add the entry, generate a token, restart GitHub Copilot CLI, 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 →](https://commareports.com/settings/tokens)**

### Related

- [Comma MCP server overview](/mcp)
- [Share what GitHub Copilot CLI produced](/agents/share-copilot-output)
- [Use Comma with Claude Code](/mcp/claude-code)
- [Use Comma with Cursor](/mcp/cursor)
- [Where should my AI agent post its work?](/agents/where-should-my-agent-post)