isolated-worktreelisted

# Isolated Worktree Every implementation or review run happens in its **own sibling worktree**, created from the latest default branch. Do not edit the default-branch checkout (`main` / `master`). Follow [`engineering/git-conventions`](engineering/git-conventions/SKILL.md) for branch names and commit messages. ## Detect the default branch Never hardcode `main`. Resolve it: ```bash git symbolic-ref refs/remotes/origin/HEAD # origin/master or origin/main ``` If `origin/HEAD` is missing: `git remote set-head origin -a`, then retry. ## Parent agent (before launching subagents) 1. `git fetch origin`. 2. Fast-forward the **default-branch worktree only** when all of these are true: - cwd is that default branch - the working tree is clean - this checkout *is* the dedicated default worktree (often a folder named `main` even when the branch is `master`) 3. Create **one sibling worktree per subagent**, each with a unique branch: ```text feature/TICKET-NUMBER[-optional-slug] ``` Place the worktree **next to** the default checkout, not inside it: ```text <parent>/<repo>/main <parent>/<repo>/feature-TICKET-optional-slug ``` Example: ```bash git fetch origin git -C "<parent>/<repo>/main" merge --ff-only origin/master git worktree add -b feature/AI-43-isolated-worktree \ "<parent>/<repo>/feature-AI-43-isolated-worktree" origin/master ``` 4. Launch the subagent with `working_directory` (or equivalent) set to that worktree. Pass in the prompt: absolute worktree