What this error means

commits land on main when Cursor implementer skips feature branch creation is a Cursor failure pattern reported for developers trying to developers using cursor's automated agent face accidental main-branch writes when the agent skips creating a feature branch. need to understand how this happens and prevent data loss. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

GitHub Issue #2572 on character-ai/larch (opened 2026-05-22T13:42Z), labeled IN PROGRESS. Describes a critical bug where Cursor's code implementation agent writes directly to main instead of a feature branch. High-stakes for teams using Cursor for automated development. Category maps to Cursor.

Common causes

  • GitHub Issue #2572 on character-ai/larch (opened 2026-05-22T13:42Z), labeled IN PROGRESS. Describes a critical bug where Cursor's code implementation agent writes directly to main instead of a feature branch. High-stakes for teams using Cursor for automated development. Category maps to Cursor.

Quick fixes

  1. Confirm the exact error signature matches commits land on main when Cursor implementer skips feature branch creation.
  2. Check the Cursor account, local tool state, and provider configuration involved in the failing workflow.
  3. Compare the failing environment with a known working setup, then change one configuration value at a time.

Platform/tool-specific checks

  • Verify the command, editor, extension, or API client that produced the error.
  • Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
  • Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

  1. Capture the exact error message and the command, editor action, or request that triggered it.
  2. Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
  3. Review the source evidence below and compare it with your environment.
  4. Apply one change at a time and rerun the smallest failing action.
  5. Keep the working fix documented for the team or deployment environment.

How to prevent it

  • Keep provider/tool configuration documented.
  • Record non-secret diagnostics such as tool version, provider name, model name, and command path.
  • Add a lightweight check before CI or production workflows depend on the tool.