Capture a small-to-medium course correction realized mid-task, not from external review: record it as a numbered D-N entry in DECISIONS.md, update TASK_STATE.md, and route back to the right command. Use when the realization came from your own work, is worth recording, does not invalidate the whole approach, and the current slice is recoverable with a small change of plan. Do not use when the trigger is external review or PR feedback (use pr-feedback-ingest or post-review-pivot), when it invalidates the entire task scope (use task-init for a new task), when it is too small to record (use capture-observation), when it is loop or confusion (use im-stuck), or when it requires…
