Conciseness

Mostly efficient — dense catalog tables with no basic-concept padding — but with genuine tightening opportunities: the "Cost & Credits Quick Reference" table restates the Cost column already present in all four catalog tables, "Enabling Predefined Metrics" repeats workflow steps 3–4 verbatim, and "Key Constraints" re-summarizes notes already in the catalog. This fits "mostly efficient but could be tightened" rather than the minor-trim anchor at 4.

Actionability

Concrete, executable guidance throughout: typed config keys with defaults and example payloads (e.g., `pronunciation_words` as "[{"word": "Cekura", "phoneme": "sɛˈkjʊrə"}]"), a real endpoint (`GET /test_framework/v1/predefined-metrics/`), and pitfalls phrased as checks. Minor gaps — the remaining API calls are deferred to references and the tool names are given without argument schemas — place it at 4 rather than fully copy-paste-ready 5.

Workflow Clarity

The 6-step workflow is clearly sequenced and includes a validation step with a feedback loop ("Validate by running ... If results look off, check the Common Pitfalls") plus an explicit failure warning ("missing either means the metric never fires"). Not 5: the sequence lacks a per-step checkpoint/checklist and the repeated "Enabling Predefined Metrics" section slightly muddies which instructions are canonical.

Progressive Disclosure

Three real, one-level-deep reference files (verified to exist: configuration-guide.md, api-reference.md, selection-by-use-case.md, ~436 lines total) are each described in Additional Resources and cited at point of need in the workflow, while the core catalog tables — the skill's primary value — stay inline. Clear overview with well-signaled references; matches the 5 anchor.

Specificity

The description states comprehensive, concrete coverage: "Covers the full catalog of predefined metrics — what each does, costs, constraints, configuration options, and when to use each one". All capability areas of the skill are enumerated with no meaningful gaps, matching the comprehensive-coverage anchor rather than the minor-gaps anchor below it.

Completeness

It explicitly answers "when" with an extended "Use when the user asks ... or any question about Cekura's out-of-the-box metrics" clause with concrete trigger phrases, and explicitly answers "what" in the closing sentence — the exact pattern of the 5 anchor. Not 4, since the "when" needs no added explicitness.

Trigger Term Quality

Ten quoted natural user questions ("what predefined metrics are available", "which metrics are free", "configure silence threshold", "what does CSAT measure") plus synonyms ("built-in", "out-of-the-box") give comprehensive natural-phrase coverage, including specific metric names a user would actually mention.

Distinctiveness Conflict Risk

"Cekura's out-of-the-box metrics" carves a clear niche with metric-specific triggers, but phrases like "set up sentiment metric" overlap the sibling cekura-metric-design (custom metrics) skill. Mostly distinct with minor overlap risk against a closely related skill — the 4 anchor, not 5.