Conciseness

Large stretches restate knowledge Claude already has: "Short: Under 15 characters ideal", "Memorable: Easy to recall and spell", "No hyphens: Easier to share verbally", the TLD Guide (".com: Universal, trusted", ".io: Tech startups"), "Avoid Numbers: Hard to communicate verbally", and the Pricing Context section. Combined with a ~50-line mock output, this is noticeably verbose with several padded sections. Not a 1 because the prompt examples and output format do carry skill-specific signal.

Actionability

The usage prompts and the fully worked example output give concrete guidance on format and style, but the core capability — "Checks Availability: Verifies which domains are actually available" — has no executable mechanism anywhere (no RDAP/whois command, API call, or script). This is a key missing detail, matching anchor 3 rather than 4.

Workflow Clarity

Sequences are present ("1. Describe your startup idea ... 4. Pick top 3 favorites 5. Register immediately"), but checkpoints are missing or implicit — there is no step to re-verify availability before presenting final picks and no error-recovery loop if a lookup fails. Not a 2 because the steps themselves are coherent and well-ordered.

Progressive Disclosure

The body is well-sectioned but monolithic at 213 lines with no bundle files at all; content that clearly belongs in separate references (the TLD Guide, naming-tips list, and the long example output) is inlined. This matches anchor 3 ("content that should be separate is inline") rather than 4, since no material is split out.

Specificity

"Generates creative domain name ideas" and "checks availability across multiple TLDs (.com, .io, .dev, .ai, etc.)" are two concrete actions (anchor 3), but the second-person phrasing "for your project" triggers the mandated 1-point specificity penalty, and "Saves hours of brainstorming and manual checking" is marketing fluff rather than capability. Not a 1 because the domain and actions are genuinely named; not a 3 because the penalty applies and coverage is only two actions.

Completeness

The "what" is clear (generate ideas, check availability across TLDs), but there is no "Use when..." clause or equivalent explicit trigger guidance, which caps completeness at 3 per the guidelines. Not a 4 because "for your project" only weakly implies when to use the skill; not a 2 because the what is concrete, not vague.

Trigger Term Quality

"domain name ideas", "brainstorming", "availability", and the enumerated TLDs (.com, .io, .dev, .ai) are natural phrases a user would say, giving good keyword coverage. Missing common synonyms such as "domain search", "website name", or ".net"/, so it falls short of the comprehensive anchor 5.

Distinctiveness Conflict Risk

Domain name brainstorming is a clear niche with only minor overlap risk against general naming/branding skills. It lacks the explicit "Use when working with..." trigger phrasing of the anchor-5 example, so it sits mostly distinct rather than fully distinct.