Conciseness

The body is efficient and assumes Claude's git knowledge, explaining only the protocol-specific conventions (managed ignore blocks, manifest schema). Minor redundancy — confirmation rules are restated across the Pre-Flight Checklist, Mandatory User Confirmation, and the phases, and Phase 4 repeats the Ignore File Setup rules — keeps it at 4 rather than 5.

Actionability

Copy-paste-ready commands ("git worktree add -b <branch-name> .slim/worktrees/<slug> <base-commit/branch>", "git worktree remove .slim/worktrees/<slug>"), exact ignore-block lines, and a full JSON manifest example make the guidance mostly executable. The integration phase's "Generate and display a clear diff comparing the worktree branch" lacks a concrete git command, so it falls just short of fully executable.

Workflow Clarity

Four explicitly sequenced phases each contain validation checkpoints: a pre-flight checklist (branch/path conflict inspection, dirty-state check), mandatory confirmation gates before mutations, verification plus a displayed diff before integration, and no-uncommitted-changes/safely-merged checks before pruning. This matches the anchor for clear sequence with explicit validation and checkpoints for a destructive-operation skill.

Progressive Disclosure

The skill is a single well-sectioned file (Core Contract, Safety Guidelines, Workflow Guide, Use/Not Use) with no bundle files present, so navigation is easy and there are no nested references. At ~170 lines it exceeds the under-50-line single-file exception, and detail like the manifest schema or ignore-file management could be split into a reference file, matching anchor 4's 'good structure, minor organization gaps' rather than 5.

Specificity

"Manage Git worktrees" names the domain but "Manage" is the only action and it is generic; "OMO safe isolated coding lanes" is abstract jargon with no concrete operations stated. This matches anchor 2 (domain named, actions minimal or generic), not anchor 3, because no concrete action like create, merge, integrate, or prune is explicitly stated.

Completeness

The 'what' is clear (manage Git worktrees as isolated coding lanes), but there is no 'Use when...' clause; "for complex, risky, or parallel work" only weakly implies when. Per the guideline, a missing explicit trigger clause caps completeness at 3 even though the what is clear.

Trigger Term Quality

"Git worktrees", "parallel work", and "isolated" are natural keywords, but common user phrasings such as "multiple branches", "experiment without committing", or "work on two features at once" are missing. Some relevant keywords with missing variations matches anchor 3 rather than anchor 4's good-but-gapped coverage.

Distinctiveness Conflict Risk

"Git worktrees" is a clear niche with distinct triggers and minimal conflict risk against unrelated skills. It stays at 4 rather than 5 because of minor overlap with general git-branch/checkout skills and the broadening qualifier "complex, risky, or parallel work".