Conciseness

The core instructions are lean and command-driven, but the same rules are repeated across three summary sections (Quick Reference table, Common Mistakes, Red Flags) and again in the Example Workflow — e.g., 'verify ignored' appears in all four. This matches 'mostly efficient but could be tightened' rather than anchor 4's 'minor instances'.

Actionability

Concrete, executable bash commands and exact user-facing prompts cover directory detection, ignore verification, worktree creation, and setup auto-detection. It falls short of anchor 5 because the creation snippet is a fragment referencing undefined $LOCATION/$BRANCH_NAME variables and an unexpanded '~' inside quotes, so it is not copy-paste ready.

Workflow Clarity

A clearly sequenced workflow (select directory → verify ignored → create → setup → baseline test → report) with explicit validation checkpoints (git check-ignore, baseline tests) and feedback loops ('If tests fail: Report failures, ask whether to proceed or investigate'). This matches the top anchor including error-recovery guidance.

Progressive Disclosure

A single-file skill with no bundle files, well-organized sections, and easy navigation; no nested or buried references. It misses anchor 5 because some inline content (Common Mistakes, Example Workflow) duplicates the core sections and could be trimmed or split, leaving minor organization gaps.

Specificity

The description names the domain ("creates isolated git worktrees") but the remaining capabilities are abstract qualifiers — "smart directory selection and safety verification" — rather than several concrete actions, matching the 1-2 concrete actions anchor. It falls below anchor 4 because buzzword-like phrases replace a list of specific actions.

Completeness

Both what ("creates isolated git worktrees with smart directory selection and safety verification") and an explicit when ("Use when starting feature work that needs isolation... or before executing implementation plans") are present with concrete triggers. It misses anchor 5 because the 'what' half relies on vague qualifiers instead of concrete capability verbs.

Trigger Term Quality

Natural phrases users would say are present ("starting feature work", "isolation from current workspace", "implementation plans", "git worktrees"), giving good coverage. A few natural synonyms are missing (e.g., "parallel branches", "isolate changes", "new branch"), keeping it below anchor 5.

Distinctiveness Conflict Risk

Worktree creation is a distinct niche with clear triggers (isolation, feature work, implementation plans), only marginally overlapping generic planning or git skills. Not anchor 5 because "before executing implementation plans" could fire on general implementation-planning skills.