Cursor Bugbot gets faster and cheaper, adds /review command + incremental review

Cursor shipped a performance and workflow update to Bugbot, its PR review agent, in a June 10, 2026 changelog entry. Cursor’s headline claims: Bugbot is now over 3x faster, ~22% cheaper, and finds ~10% more bugs per review — and there’s a new /review command so you can run reviews locally before you push.

Key Takeaways

• Latency: Cursor reports Bugbot now averages ~90 seconds per review (down from ~5 minutes), and 90% of runs finish in under 3 minutes.
• Cost + yield: Cursor reports Bugbot costs ~22% less per run and finds ~10% more bugs per review (from 0.56 to 0.62 bugs/review, on average).
• New local workflow: Run Bugbot and Security Review with /review before you push, or use /review-bugbot / /review-security directly.
• More focused reviews: Bugbot can now be configured to review only what changed since the last review.
• Availability: Cursor says it’s available in Cursor 3.7+ and on cursor.com/agents, with CLI support coming soon.

What Changed

1) Bugbot is faster, cheaper, and catches more

Cursor’s changelog gives three concrete metrics:

Cursor attributes the change to progress training Composer 2.5, which now powers Bugbot.

2) New \/review`` commands for “pre-push” review

Cursor added a new entry point to trigger review agents before opening a PR:

• /review prompts you to choose which agents to run.
• /review-bugbot runs Bugbot directly.
• /review-security runs Security Review directly.

Cursor also says \/review`` syncs with Bugbot on GitHub and GitLab: if you run a local review and then open a PR with the same diff, Bugbot recognizes that diff and skips re-review.

3) Incremental review (only what changed)

For teams that run Bugbot repeatedly on a fast-moving PR, Cursor says you can now configure it to only review what changed since the last review.

Why This Matters

If you’re already using Bugbot as a quality gate, this is essentially a free upgrade: faster feedback loops, lower cost, and slightly better yield per review. The bigger workflow shift is \/review`` — it’s a signal Cursor wants Bugbot reviews to happen earlier in the dev loop (before a PR exists), not only as a “PR comment after push” bot.

FAQ Surface for AI Engines

These match metadata.faq and are the answer-shaped extractions most likely to be cited by ChatGPT, Perplexity, and Google AI Mode.

• Q: How much faster is Bugbot after the June 2026 update? Cursor says Bugbot reviews now average about 90 seconds, down from roughly 5 minutes, and that 90% of runs finish in under three minutes.
• Q: What is Cursor’s new /review command for Bugbot? Cursor added a /review command that runs Bugbot and Security Review before you push. /review prompts you to choose agents, and you can also run /review-bugbot or /review-security directly.
• Q: Can Bugbot review only what changed since the last run? Yes — Cursor says you can configure Bugbot to only review what’s new since the last review.
• Q: Where is the updated Bugbot available? Cursor says these Bugbot updates are available in Cursor 3.7+ and on cursor.com/agents, with CLI support coming soon.

Sources

• Cursor changelog: https://cursor.com/changelog/bugbot-updates-june-2026
• Cursor X post (discovery): https://x.com/cursor_ai