Conciseness

The body is short and sectioned, but it re-prints the frontmatter description verbatim as an opening paragraph and fills the Instructions and Context sections with generic boilerplate ('Apply relevant best practices and validate outcomes', 'The user needs to implement SLOs...') that adds no SLO-specific value. This matches anchor 3 — mostly efficient but includes unnecessary content that could be trimmed; not 4 because the generic instruction bullets and duplicated role statement are exactly the kind of padding Claude does not need.

Actionability

No concrete code, commands, or SLO-specific steps appear anywhere in the body — 'Provide actionable steps and verification' instructs in the abstract, and all actual detail is deferred to resources/implementation-playbook.md. This matches anchor 2 — high-level hints present but missing the specific steps to execute; not 1 because the use/do-not-use scope lists and the reference pointer provide minimal concrete direction.

Workflow Clarity

The Instructions bullets imply a rough sequence (clarify goals → apply best practices → provide steps and verification) but the steps are poorly defined and validation is only mentioned abstractly ('validate outcomes') with no checkpoints or feedback loops. This matches anchor 2 — rough sequence present but many gaps, validation absent; not 3 because the listed steps are generic rather than a defined task sequence with implicit checkpoints.

Progressive Disclosure

Sections are clearly organized and the reference is well signaled (dedicated Resources section), but the referenced file resources/implementation-playbook.md does not exist in the bundle — no references/, scripts/, assets/, or resources/ directories are present. Scoring against the actual bundle structure, the progressive disclosure promise is non-functional: the body defers all detailed content to a missing file while containing no substantive content itself. This matches anchor 2 — the disclosure structure is effectively broken; not 1 because the body itself is navigable and not a monolithic wall of text; not 3 because a clearly signaled reference to a nonexistent file leaves the skill worse than one with no reference at all.

Specificity

Lists several concrete actions ('Design comprehensive SLO frameworks, establish meaningful SLIs, and create monitoring systems'), which matches the anchor 4 example of several specific actions with minor gaps. However, the description opens with second person voice ('You are an SLO (Service Level Objective) expert specializing in...'), which the judging guidelines require penalizing by reducing the specificity score by 1, landing at 3.

Completeness

The 'what' is clear and specific (design SLO frameworks, establish SLIs, create monitoring systems), but there is no 'Use when...' clause or equivalent explicit trigger guidance, capping completeness at 3 per the judging guidelines. Not 2 because the 'what' is specific rather than vague; the 'when' is simply absent, matching anchor 3.

Trigger Term Quality

Good keyword coverage including both abbreviation and full form ('SLO (Service Level Objective)'), plus 'SLIs', 'error budget', 'reliability', and 'monitoring' — natural terms a user would say. Not 5 because common variations like 'uptime', 'availability', 'alerting', or 'service level agreements' are missing; not 3 because multiple natural domain terms are present rather than a single generic keyword.

Distinctiveness Conflict Risk

SLO/error-budget/SLI terminology carves out a distinct niche with minor overlap risk against closely related observability or incident-management skills. Not 5 because broad phrases like 'create monitoring systems' and 'reliability' could overlap with a general monitoring skill.