Review Assist

AI agents write code faster than anyone can read diffs — and the context that makes review fast (what was asked, what was assumed, what was tried and abandoned, what was tested) is thrown away the moment the PR opens. Review Assist captures it at the source: an agent's session becomes anIntent Document, a validator proves it actually covers the diff, and a GitHub App renders it as a guided review on top of the pull request.

Fully open source, self-hostable, andstores none of your code. Your session transcript never leaves your machine. The app has no database: it reads the document and diff from GitHub per request with the reviewer's own token, keeps them in memory for the length of that request, and serves themprivate, no-storeto a viewer that renders in the reviewer's browser. Nothing is written down, but your code does pass through the service in transit — if that matters to you, self-host it.

Two one-time installs — the MCP server on the developer's side, the GitHub App on the repo's.

1. Register the MCP server with your agent(so it can author Intent Documents). Claude Code and Codex keep separate configs, so registering with one does not register with the other — run the section(s) you use.

claude mcp add -s user review-assist -- npx -y review-assist-mcp

The CLI and the VS Code extension share this one-s userconfig — but only when the extension inherits your shell'sPATH(launched viacode ., not the Dock). Launched from the Dock, GUI apps on macOS get just/usr/bin:/bin:/usr/sbin:/sbin, sonpxisn't found and the server showsnot connectedwith no error. Register withoutnpxinstead:

npm install -g review-assist-mcp claude mcp add -s user review-assist -- "$(which node)" "$(npm root -g)/review-assist-mcp/dist/index.js"

codex mcp add review-assist -- npx -y review-assist-mcp

Shared with the IDE extension (~/.codex/config.toml) under the samecode .caveat as above. Dock-launched VS Code:

npm install -g review-assist-mcp codex mcp add review-assist -- "$(which node)" "$(npm root -g)/review-assist-mcp/dist/index.js"

(Skipnpm install -gif you already ran it for Claude Code — one global install serves both extensions; each still needs its ownmcp add.)

One click. Read-only code + PR comments, no workflow files — it adds the automatic check on every PR, the summary comment, and the guided-review viewer.

Only relevant if you used the global-install form above (npm install -g) —npx -yresolves to the latest release on every launch by itself.

Restart your agent afterward so it respawns the server process.

claude mcp remove -s user review-assist # or: codex mcp remove review-assist npm uninstall -g review-assist-mcp # only if you used the global-install form rm -rf ~/.review-assist # consent decisions and local run state

Three systems and two external actors. Your machine produces the change and its Intent Document; the session transcript never leaves it. GitHub holds the pull request and every durable piece of review state. The application reacts topull_requestevents and posts the check as its bot identity, then serves the guided review, reading and writing GitHub as the signed-in reviewer.

npm install npm run build # Validate and render the example Intent Document node packages/validator/dist/cli.js validate packages/schema/src/example.json node packages/validator/dist/cli.js render packages/schema/src/example.json # Preview the guided viewer with mock data → http://localhost:8787/#acme/checkout-service/pull/42 node scripts/mockserver.mjs # Tests npx vitest run

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