Conciseness

The body is dense, assumes Claude's git competence, and avoids explaining basic concepts; it is not score 5 because several lengthy inline comments (e.g. the `[ -d ]` rationale and the spawn_task aside) over-explain edge cases that could be trimmed, and not score 3 because the prose overall is efficient and earns most of its tokens.

Actionability

It provides copy-paste-ready bash with concrete git worktree commands, a literal ticket regex `[A-Z]+-[0-9]+`, an exact terminal-title escape sequence, a concrete mark_chapter call, and explicit handoff arguments (`--phase plan --next-phase lock-tests`) with a recovery fallback; this fully matches the executable, common-case-covered anchor.

Workflow Clarity

Steps are clearly sequenced (Step 0 worktree, Before first-action, After plan-saved) with explicit validation (the branch check that exits with 'WORKTREE RECOVERY FAILED') and a feedback/recovery loop (try `worktree add`, else reuse the existing checkout); this matches the explicit-validation-with-feedback-loops anchor.

Progressive Disclosure

It is a self-contained, well-sectioned single-purpose skill with clear headers and no nested or buried references; per the simple-skill note, well-organized sections with no need for external references score 5, and there are no bundle files to misreference.

Specificity

Names the domain ('superpowers:writing-plans') and one concrete action ('devflow's phase-handoff at the end'), matching the anchor for 1-2 concrete actions without being comprehensive; not score 2 because the action is specific rather than generic, not score 4 because only a single action is named.

Completeness

It has a clear 'what' (extends writing-plans with phase-handoff at the end) but no 'when'/Use-when clause at all, so per the missing-trigger-guidance cap it cannot exceed 3; not score 4 because the 'when' is entirely absent rather than merely implicit.

Trigger Term Quality

The terms 'writing-plans', 'phase-handoff', and 'devflow' are plugin/skill jargon rather than natural phrases a user would say; not score 1 because 'writing-plans' is at least a recognizable concept, but it misses the common natural variations users actually utter.

Distinctiveness Conflict Risk

It is scoped to extending two specific named skills, giving it a clear niche with only minor overlap risk against the base writing-plans skill; not score 5 because it depends on the base skill's triggers and could co-trigger with it.