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Extension Overview

The partio Chrome extension surfaces checkpoint data — agent transcripts, plans, and authorship stats — directly on GitHub commit and pull request pages. Instead of switching to the dashboard, you can review what an AI agent did right where you already review code. Checkpoint panel expanding on a GitHub commit page

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Installation

Install the extension from the Chrome Web Store and it will be ready to use immediately after connecting your account.

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Connecting to Partio

The extension needs two things to work: a session with app.partio.io and a GitHub token with repo scope.
  1. Click the Partio icon in your browser toolbar to open the popup
  2. Click Connect — if you’re already signed in to app.partio.io, it connects automatically
  3. If you’re not signed in, a new tab opens to app.partio.io/login — sign in with GitHub, then return to the popup
Once connected, the popup shows your GitHub username and a Disconnect button. The extension auto-refreshes your session when cookies change, so you stay connected across browser restarts. Extension popup showing connect and disconnect states
If you explicitly disconnect via the popup, the extension won’t auto-reconnect even if you’re still signed in to app.partio.io. Click Connect again to re-enable.

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Supported GitHub Pages

The extension activates on four types of GitHub pages:
Page typeURL patternWhat the extension does
Commit/owner/repo/commit/shaShows checkpoint panel with transcript and plan
Pull request/owner/repo/pull/NShows checkpoint panel for the PR’s head commit
PR commit view/owner/repo/pull/N/commits/shaShows checkpoint panel for the specific commit
Commit listsAny page with commit linksAdds badge icons to commits that have checkpoints
The extension listens for GitHub’s SPA navigation events (turbo:load, pjax:end), so panels and badges update as you navigate without full page reloads.

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How It Works

The partio CLI stores checkpoint data on a partio/checkpoints/v1 orphan branch in your repository. The extension reads this branch via the GitHub API to fetch metadata, session transcripts, and plans — then renders them inline on the page. No data leaves your browser except API calls to GitHub (to read checkpoint data) and app.partio.io (for authentication). See Troubleshooting for privacy details.

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Next Steps

  • Features — detailed walkthrough of the checkpoint panel, commit badges, and discovery logic
  • Troubleshooting — common issues and how to resolve them