Conciseness

The body is efficient — numbered steps, copy-paste commands, and no explanation of concepts Claude already knows — matching the 'efficient; minor instances of over-explanation that could be trimmed' anchor. Not a 5 because the context/rules constraint ("do NOT copy <context>, <rules>...") is stated in full twice, and 'read dependency artifacts, re-read from disk' guidance is likewise repeated in both step 4 and the Guidelines section.

Actionability

Commands are copy-paste ready (`openspec new change "<name>"`, `openspec status --change "<name>" --json`, `openspec instructions <artifact-id> --change "<name>" --json`) with the exact JSON fields to parse (`applyRequires`, `resolvedOutputPath`, etc.), matching the 'fully executable; copy-paste ready commands' anchor. The one abstract step (writing the artifact file) is legitimately driven by the CLI's runtime-provided template and resolved output path, which the skill handles explicitly.

Workflow Clarity

The sequence is explicit with validation checkpoints: loop artifacts in dependency order, re-run `openspec status --json` after each creation, stop only when every `applyRequires` artifact reports `status: "done"`, and "Verify each artifact file exists after writing before proceeding". This batch file-generation workflow includes feedback loops and error/ambiguity handling (AskUserQuestion, existing-change collision), matching the top anchor and avoiding the batch-operation cap since validation is present.

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ are absent) and none are referenced, so there are no broken or nested-reference issues; the body is organized into clear sections (Store selection, Input, Steps, Output, Guidelines, Guardrails), matching 'good structure; minor organization gaps'. Not a 5 because at ~113 lines it exceeds the under-50-line simple-skill case, and the Store selection paragraph is boilerplate that likely recurs across sibling OpenSpec skills and belongs in a shared reference file.

Specificity

"Propose a new change with all artifacts generated in one step" and "get a complete proposal with design, specs, and tasks ready for implementation" name several concrete outputs (design, specs, tasks), matching the 'lists several specific actions; minor gaps' anchor. Not a 5 because the actions themselves stay generic ('propose', 'generate') without saying what is done to each artifact, and 'change' is domain jargon without clarification.

Completeness

The description explicitly answers both: what ("Propose a new change with all artifacts generated in one step") and when ("Use when the user wants to quickly describe what they want to build and get a complete proposal..."), matching the anchor for clearly and explicitly answering both with concrete trigger phrases. Third-person voice is used correctly, so no penalty applies.

Trigger Term Quality

"describe what they want to build", "proposal", "design, specs, and tasks" are natural phrases users would say, giving good keyword coverage per the score-4 anchor. A few natural variants are missing — e.g. "plan a feature", "draft a spec", "openspec" — so it does not reach comprehensive synonym coverage.

Distinctiveness Conflict Risk

The artifact trio ("proposal with design, specs, and tasks ready for implementation") carves a clear niche in the OpenSpec workflow, so it is mostly distinct with only minor overlap risk against generic planning/spec-drafting skills — the score-4 anchor. Not a 5 because the description never names the tool or a unique term like "openspec change", leaving some risk of firing for ordinary 'plan my feature' requests.