Conciseness

The body is mostly lean CLI commands, but the 'Certifier Overview' section is a bare entity outline with no descriptive content, and filler lines like 'Use action names and parameters as needed.' add nothing. This matches 'mostly efficient but includes some unnecessary explanation or could be tightened' rather than level 4, where over-explanation would be only minor.

Actionability

Concrete copy-paste commands cover install, login (including headless completion), connection setup with polling, action discovery/execution, and proxy requests with a flags table. Minor gaps keep it below 5: '<actionId>' placeholders are never reconciled with the 'Key' column in the actions table, and where CONNECTION_ID comes from is only implied.

Workflow Clarity

The install → login → connect → poll → search → run sequence is present with a good state-polling feedback loop for connection setup. However the skill exposes destructive operations (Delete Credential, Delete Group) with no validation guidance such as confirming the ID before deletion, which caps workflow clarity at 3; the dangling 'skip to Step 2' reference and a '1b' heading with no Step 1 also muddy the sequence.

Progressive Disclosure

A single ~175-line file with clear section headers, so navigation works, but the 18-row action catalog and the proxy flag reference are content that would fit better in separate reference files. This matches 'some structure but could be better organized; content that should be separate is inline' rather than level 4, where content placement would be mostly appropriate for a skill of this size.

Specificity

The description names the domain ('Certifier integration') but the actions are generic — 'Manage data, records, and automate workflows' lists no concrete operations like creating, issuing, or sending credentials. It fits the anchor 'names the domain but actions are minimal or generic', not the level above which requires 1-2 concrete actions.

Completeness

Both questions are answered: what ('Manage data, records, and automate workflows') and an explicit when ('Use when the user wants to interact with Certifier data'), so it is above the level-3 anchor where 'when' is missing or only weakly implied. It falls short of 5 because the 'what' is vague and the 'when' is narrow, without concrete trigger phrases like certificates or credentials.

Trigger Term Quality

The only keywords are 'Certifier', 'data', and 'records'; natural phrases users would actually say — 'certificates', 'credentials', 'badges', 'issue a certificate' — are absent. This matches 'one or two generic keywords; missing the natural phrases users say' rather than level 3, which requires some relevant domain keywords.

Distinctiveness Conflict Risk

'Certifier' is a unique platform name and the trigger 'interact with Certifier data' is a clear niche with minimal overlap risk against other skills — it matches the level-5 anchor. The generic 'manage data' tail does not realistically create conflict because the platform name gates it.