Conciseness

The body is efficient — no explanations of concepts Claude already knows, and sections like the Probe Dimensions table earn their tokens. Minor instances of over-explanation remain: the intro, Overview, and When to Use sections overlap ('Systematically probe an AI model's behavioral patterns...' vs. the Overview restating it), plus light marketing padding ('30 carefully designed probe questions'). This fits anchor 4 rather than 5, and is clearly above anchor 3's 'some unnecessary explanation'.

Actionability

Concrete, executable guidance dominates: 'pip install bdistill', 'claude mcp add bdistill -- bdistill-mcp', '/xray', '/xray --dimensions refusal', '/xray-report', plus natural-language MCP invocations. Minor gaps keep it at anchor 4: the non-Claude path is thin ('add bdistill-mcp as an MCP server in your project config') and there is no example of what a probe interaction looks like.

Workflow Clarity

A clear two-step sequence (Install → Run the probe) with copy-paste commands; probing is non-destructive so the missing-validation cap does not apply. It is not a 5 because report generation is not an explicit labeled step and there is no note that the probe must complete before '/xray-report'; it is above anchor 3 because the sequence that is present is unambiguous and complete.

Progressive Disclosure

No bundle files exist, and the ~75-line body is well-organized into clearly signaled sections (Overview, When to Use, How It Works, Probe Dimensions, Output, Best Practices). It fits anchor 4 rather than 5: the body exceeds the under-50-line simple-skill exception, and content such as the 30 probe questions or per-dimension detail could naturally live in a reference file; it is well above anchor 3's 'content that should be separate is inline'.

Specificity

The description lists several concrete behavioral aspects — 'refusal boundaries, hallucination tendencies, reasoning style, formatting defaults' — which names the domain plus multiple specific probes. It falls short of anchor 5 because coverage has gaps: no mention of report output, or the persona/tool_use dimensions, and 'X-ray' as the verb is somewhat abstract.

Completeness

The 'what' is clear (probe a model's behavioral patterns across named dimensions), but there is no 'Use when...' clause or equivalent explicit trigger guidance, which caps completeness at 3 per the judging guidelines. It is not a 4 because the 'when' is entirely absent rather than merely under-specified.

Trigger Term Quality

Natural phrases users would say are present: 'behavioral patterns', 'refusal boundaries', 'hallucination tendencies', 'AI model'. A few natural terms are missing (e.g., 'model evaluation', 'red team', 'probe', 'benchmark'), matching anchor 4 rather than anchor 5's comprehensive synonym coverage.

Distinctiveness Conflict Risk

The niche focus (behavioral probing of AI models) is mostly distinct with clear differentiators like 'no API key needed'. Minor overlap risk exists with closely related AI-evaluation/red-team skills (e.g., the companion knowledge-extraction skill), so it fits anchor 4 rather than anchor 5's minimal-conflict profile.