It answers that directly — crash-free rates for both versions side by side, the issues that are new in this build, and the ones that came back — and lets the agent leave a comment on the issue it found so the finding lands where the team already looks.
An unofficial Sentry server built around releases: health and adoption figures, the issues tied to a specific release, deploy history, and issue comments.
- Crash-free users, crash-free sessions, and session and user counts for a release
- Adoption percentages, both session-based and user-based
- A side-by-side crash-free comparison between two releases
- Issues first seen in a specific release
- Issues that regressed in a specific release
- Deployment history for a release
- A comment posted onto a Sentry issue
Four environment values — SENTRY_PERSONAL_TOKEN, SENTRY_ORG, SENTRY_PROJECT and SENTRY_BASE_URL — and uv installed, since it runs through uvx.
One command plus a key — claude mcp add sentry-companion -e SENTRY_PERSONAL_TOKEN=your_token -e SENTRY_ORG=your-org-slug -e SENTRY_PROJECT=your-project-id -e SENTRY_BASE_URL=https://us.sentry.io -- uvx sentry-companion-mcp, then supply credentials