Generates creative domain name ideas for your project and checks availability across multiple TLDs (.com, .io, .dev, .ai, etc.). Saves hours of brainstorming and manual checking.
51
26%
Does it follow best practices?
Impact
99%
1.05xAverage score across 3 eval scenarios
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./plugins/all-skills/skills/domain-name-brainstormer/SKILL.mdQuality
Discovery
40%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
The description identifies a clear niche (domain name brainstorming and availability checking) with some concrete actions, but lacks an explicit 'Use when...' clause and includes unnecessary marketing language ('Saves hours of brainstorming and manual checking'). It also uses second person ('your project'), which reduces professionalism, and could benefit from more natural trigger terms users would actually say.
Suggestions
Add an explicit 'Use when...' clause, e.g., 'Use when the user asks for domain name suggestions, wants to find available domains, or mentions registering or buying a domain.'
Replace second person 'your project' with third person voice, e.g., 'Generates creative domain name ideas for a given project'
Remove the marketing fluff 'Saves hours of brainstorming and manual checking' and replace with additional trigger terms like 'domain search', 'website name', 'register a domain'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (domain names) and some actions (generates ideas, checks availability), but doesn't list comprehensive specific actions like suggesting alternatives, ranking by relevance, or exporting results. | 2 / 3 |
Completeness | Describes what it does (generates domain name ideas, checks availability) but has no explicit 'Use when...' clause or trigger guidance. The phrase 'Saves hours of brainstorming' is marketing fluff rather than trigger guidance. Per rubric, missing 'Use when' caps completeness at 2, and the weak 'when' pushes this to 1. | 1 / 3 |
Trigger Term Quality | Includes relevant terms like 'domain name', 'TLDs', '.com', '.io', '.dev', '.ai', and 'availability', but misses common user phrases like 'register a domain', 'buy a domain', 'domain search', or 'website name'. | 2 / 3 |
Distinctiveness Conflict Risk | Domain name generation and availability checking is a very specific niche that is unlikely to conflict with other skills. The mention of specific TLDs further narrows the scope. | 3 / 3 |
Total | 8 / 12 Passed |
Implementation
12%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill is fundamentally flawed because it describes a capability (domain availability checking) that Claude cannot actually perform without specific tools or API integrations, none of which are provided. The content is extremely verbose, explaining many concepts Claude already knows (what TLDs are, what makes a good domain name, general branding advice) while providing zero executable code, commands, or tool configurations. It reads more like a blog post about domain naming than an actionable skill.
Suggestions
Provide actual executable tooling (API calls, scripts, or MCP tool references) for checking domain availability, since without this the skill's core promise is undeliverable.
Remove sections Claude already knows: TLD descriptions, 'What Makes a Good Domain' tips, pricing context, and 'When to Use This Skill' — these waste tokens on general knowledge.
Cut the content by at least 60% — focus on a concise prompt template and the specific domain generation strategy/heuristics that add value beyond Claude's existing knowledge.
If the skill is meant to be long, split reference material (TLD guide, naming tips, example workflows) into separate bundle files with clear navigation from the main SKILL.md.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Extremely verbose with extensive content Claude already knows (what makes a good domain, TLD descriptions, general branding tips). The 'When to Use This Skill' and 'What This Skill Does' sections are unnecessary padding. The pricing context, tips for success, and related tools sections add little actionable value. This could be reduced to a fraction of its size. | 1 / 3 |
Actionability | Despite its length, the skill provides no concrete, executable guidance. There are no actual tools, APIs, scripts, or commands for checking domain availability. The 'example output' is fabricated/illustrative rather than showing how Claude would actually perform availability checks. Claude cannot actually verify domain availability without specific tool integrations, making the entire skill aspirational rather than actionable. | 1 / 3 |
Workflow Clarity | The example workflows (Startup Launch, Personal Brand, Product Naming) provide reasonable step sequences, but they lack any validation checkpoints or error handling. There's no guidance on what to do when availability checks fail or how to verify results. The steps are more like checklists than executable workflows. | 2 / 3 |
Progressive Disclosure | The content is a monolithic wall of text with no references to external files and no bundle structure. Everything is inlined in a single long document — TLD guides, pricing context, naming tips, multiple workflow examples — all of which could be separated. For a skill this long, the lack of any structural organization into separate files is a significant weakness. | 1 / 3 |
Total | 5 / 12 Passed |
Validation
90%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 10 / 11 Passed | |
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Table of Contents
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