Conciseness

The body is dense and assumes Claude's competence — no padding about what a plugin or manifest is — with every section earning its place; only minor stretches (the long plugin.repo and jq guardrail paragraphs) could be trimmed. Not 5 because the auth/repo handling paragraph and jq-availability note run long; not 3 because there is no wasted conceptual explanation.

Actionability

Provides copy-paste-ready, fully executable commands throughout — `od plugin validate`, `od plugin pack`, `od plugin install --source <absolute-folder-path>`, `gh --version`, `gh auth status`, `node -e '...'` — plus specific recovery commands and an explicit list of forbidden placeholder owners. Covers the common cases concretely; not 4 because guidance is complete rather than having minor gaps.

Workflow Clarity

A clear sequenced workflow — read project files in order → derive → scaffold generated-plugin/ → validate → pack → install → single summary → STOP — with an explicit validation checkpoint (`od plugin validate`) and error-recovery guidance for auth problems. The validation step is present so the destructive/batch cap does not apply; not 4 because checkpoints and feedback loops are explicit rather than minor-gapped.

Progressive Disclosure

The ~70-line body is well-organized into clearly-headed sections (Required outcome, Auto-derive, Validate, When done, Do NOT chain, Language, folder shape, Spec references) with one-level-deep pointers to `docs/plugins-spec.md`, the plugin schema, and the sibling authoring SKILL.md. No bundle files exist, so this is judged on body structure; not 5 because there are no separate reference files to split the spec detail into, and not 3 because structure and signaling are already good.

Specificity

Names several concrete actions — "Package the user's just-finished work as an Open Design plugin", "without asking for fields the project files already answer", "surface the existing Add-to-My-plugins / Open-Design-PR buttons" — with only minor gaps (no mention of validate/pack). Not 5 because it omits concrete steps like validate/install; not 3 because it lists multiple specific actions beyond a single pair.

Completeness

The "what" is clear (package work as a plugin and surface specific buttons) but there is no explicit "Use when..." trigger clause telling Claude when to invoke this skill, which per the rubric caps completeness at 3. Not 4 because the "when" is only weakly implied by "just-finished work"; not 2 because the "what" is concretely stated rather than vague.

Trigger Term Quality

Includes domain entities like "Open Design plugin", "Add-to-My-plugins", "Open-Design-PR", but these are product UI names rather than natural phrases a user would say, and common variants ("share", "publish my plugin", "ship as a plugin") are absent. Not 4 because the natural-language trigger vocabulary is thin; not 2 because several relevant domain keywords are present.

Distinctiveness Conflict Risk

The Open Design plugin-packaging niche with named buttons (Add-to-My-plugins / Open-Design-PR) is mostly distinct, with only minor overlap risk against the sibling from-scratch authoring skill. Not 5 because the sibling od-plugin-authoring skill covers adjacent territory; not 3 because the sharing/post-completion framing and named buttons make it clearly distinguishable.