Finishing a Development Branch

Overview

Integration choice and checkout lifetime are separate. Verify first, mutate only task-owned resources, then prove what was removed or retained.

Core principle: fresh evidence -> authorized integration -> ownership-aware cleanup -> Git/path readback.

Announce at start: explain which branch/worktree lifecycle is being closed.

Step 1: Environment and Ownership Detection

Read the task's TaskStartSnapshot and current repository state. Record: