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Sep 5, 2025

Background agents

AI that handles PR feedback for you

Paul Sangle-Ferriere

Your teammate just left 5 review comments. Each one requires switching contexts, understanding the issue, writing a fix, and pushing a commit.

What if AI agents could handle review feedback in the background while you keep coding?

After 2 months of internal use with 90% of fixes merged as-is, our background agents are launching in beta.

How it works

When you trigger a background agent to address a review comment, it generates a new pull request that merges directly into your current branch. The fix PR contains only the requested changes with no extra modifications. Review and merge when satisfied.

The entire process takes 1-3 minutes while you continue working.

[GIF: Review comment about missing error handling → Background agent triggered → PR created in 90 seconds]

Two ways to trigger

Method 1: Click the button

Every review comment includes a "Generate fix" button for one-click triggering.

Method 2: Tag cubic

Tag cubic in any review comment: "@cubic-dev-ai fix this"

What background agents handle

  • Type errors & missing imports - Fixed automatically

  • Linting & formatting - ESLint, Prettier handled correctly

  • Missing error handling - Adds try-catch matching your patterns

  • Test coverage gaps - Writes tests using your existing patterns

  • Documentation updates - Updates READMEs and JSDoc in your style

  • Simple refactoring - Extracts functions while maintaining functionality

Free during beta

Background agents are completely free during our beta:

  • Unlimited background agent runs at no cost

  • Enterprise Claude model included for all users

  • Works on all repositories with cubic installed

Available now - completely free

Background agents are in beta and completely free for all cubic users. No configuration, no payment, no limits.

Focus on building features while background agents handle routine review feedback - all at zero cost during beta.

Join the beta →

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