A team added a new dependency-review agent to an existing multi-agent pull request workflow. The pull request now shows the required check dependency-review-agent / scan as pending, but no run appears for the new agent. Which option best explains the pending check? Select one answer.

The correct answer is "The workflow is not on default branch." GitHub Actions workflows triggered by pullrequest events, especially for required status checks, often need to exist on the default branch (e.g., main) to be discovered and executed for pull requests originating from other branches. The message "Workflow was not run because the workflow file was not found on the default branch" directly confirms this. "The dependency agent lacks packages permission" is incorrect because a permissions issue would likely result in a failed run, not a pending state with no run initiated. "The pull request skipped required checks" is incorrect; if checks were skipped, they wouldn't appear as pending. "The test agent cancelled dependent jobs" is incorrect as there's no indication of the test agent having such control or that any job was cancelled.