What problem does it solve? Starting feature work directly in your current checkout risks disturbing uncommitted changes, long-running tasks, or the branch you are on. This Skill ensures work happens in an isolated git worktree, with a verified test baseline, so failures are never ambiguous between pre-existing breakage and new changes. ## Core Features & Use Cases - Isolation Detection: Detects whether you are already inside a linked worktree or submodule before creating anything, avoiding nested worktrees. - Native Tool Preference: Uses harness-native worktree tools (EnterWorktree, isolation flags) when available, falling back to git worktree add only when necessary. - Safe Setup: Verifies the worktree directory is git-ignored before creation, installs project dependencies, and runs the test suite to establish a baseline. - Use Case: Before executing a multi-step implementation plan, spin up .worktrees/feature-x on a new branch, run the existing test suite to confirm it is green, and only then start writing code. ## Quick Start Set up an isolated git worktree for this feature work and run the test suite to establish a baseline before making any changes.
