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Coder

The Coder agent implements changes in an isolated workspace, runs checks when configured, and opens a Pull Request in your connected GitHub repository.

Prerequisites​

  • GitHub integration configured for the project.
  • Clear task description and, ideally, task spec / ADR artifacts from earlier steps.
  • AI mode configured with enough budget or quota for longer runs.

See GitHub integration and AI providers.

What Coder does​

  1. Prepares a workspace.
  2. Edits code using the project’s configured coding tools.
  3. Runs install / lint / test / build checks when applicable.
  4. Pushes commits and creates a PR artifact on the card.
  5. Leaves the card ready for human review.

Sandbox safety​

Code execution happens outside your laptop: dependencies install, commands run, and failures are visible to the agent so it can retry or fix.

Epic mode​

For epics, multiple subtasks may share one branch and one PR. Start implementation from the parent Architect result using Implement all. See Epic mode.

After Coder​

  • Review the PR in GitHub.
  • If your project exposes previews, use the Preview artifact when available.
  • Add a top-level comment when you want the coder to revise the result after review.
  • Merge the PR in GitHub to complete the flow.