browser-extension-builder
Expert in building browser extensions that solve real problems - Chrome, Firefox, and cross-browser extensions. Covers extension architecture, manifest v3, content scripts, popup UIs, monetization strategies, and Chrome Web Store publishing. Use when: browser extension, chrome extension, firefox addon, extension, manifest v3.
82
Quality
82%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Advisory
Suggest reviewing before use
Quality
Discovery
100%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This is a strong skill description that effectively communicates both capabilities and usage triggers. It uses third person voice, lists specific technical concepts, and includes an explicit 'Use when:' clause with natural trigger terms. The description is concise yet comprehensive, covering the full scope from architecture to publishing.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions and concepts: 'extension architecture, manifest v3, content scripts, popup UIs, monetization strategies, and Chrome Web Store publishing' - these are concrete, actionable capabilities. | 3 / 3 |
Completeness | Clearly answers both what ('building browser extensions... Covers extension architecture, manifest v3, content scripts, popup UIs, monetization strategies, and Chrome Web Store publishing') AND when with explicit 'Use when:' clause listing trigger terms. | 3 / 3 |
Trigger Term Quality | Includes natural keywords users would say: 'browser extension, chrome extension, firefox addon, extension, manifest v3' - covers common variations and platform-specific terms users naturally use. | 3 / 3 |
Distinctiveness Conflict Risk | Clear niche focused specifically on browser extensions with distinct triggers like 'manifest v3', 'firefox addon', 'Chrome Web Store' - unlikely to conflict with general web development or other coding skills. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
64%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill provides solid, actionable code examples for browser extension development with good coverage of MV3 patterns, content scripts, and storage. However, it includes some unnecessary introductory fluff, lacks explicit development/testing workflows, and doesn't deliver on promised topics like monetization and Chrome Web Store publishing despite listing them in capabilities.
Suggestions
Remove the roleplay framing paragraph and capabilities list - let the patterns speak for themselves
Add a workflow section with explicit steps: create manifest → test locally → debug → package → publish, with validation checkpoints
Either add content for Chrome Web Store publishing and monetization (mentioned in capabilities) or remove those claims
Consider splitting detailed API references into separate files and keeping SKILL.md as a quick-start overview
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill has some unnecessary framing ('You extend the browser to give users superpowers') and the capabilities list duplicates what's shown in the patterns. However, the code examples themselves are reasonably efficient without excessive explanation. | 2 / 3 |
Actionability | Provides fully executable code examples including complete manifest.json, content scripts, storage patterns with async/await wrappers, and UI injection code. All examples are copy-paste ready with real Chrome APIs. | 3 / 3 |
Workflow Clarity | Shows project structure and communication patterns clearly, but lacks explicit workflow steps for building/testing/publishing an extension. No validation checkpoints for common failure points like manifest errors or permission issues during development. | 2 / 3 |
Progressive Disclosure | Content is organized into logical sections with clear headers, but everything is inline in one file. The 'Related Skills' section hints at connections but doesn't provide navigation to detailed references for topics like Chrome Web Store publishing or cross-browser support mentioned in capabilities. | 2 / 3 |
Total | 9 / 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 | |
- Repository
- duclm1x1/Dive-Ai
- Commit
20ba150
- Reviewed
Table of Contents
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