Generate production-quality colorful icon sets using Google Imagen 4. Use this skill when the user needs custom app icons, emoji-style icons, cartoon icons, or any colorful icon set. Takes a project description, suggests icons, generates 1024px PNGs via Imagen 4, removes backgrounds, downscales to all target sizes, and delivers a review gallery for iterative refinement. Trigger on: "icon set", "generate icons", "app icons", "custom icons", "colorful icons", "cartoon icons", "emoji icons", "make icons", "icon generation", "imagen icons", or any request for a set of colorful visual assets.
93
93%
Does it follow best practices?
Impact
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No eval scenarios have been run
Passed
No known issues
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 an excellent skill description that clearly articulates what the skill does (a full pipeline from icon suggestion through generation, background removal, downscaling, and review), when to use it (explicit trigger clause with many natural user terms), and how it's distinct (Imagen 4-based colorful icon set generation). It uses proper third-person voice throughout and is comprehensive without being padded.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: suggests icons, generates 1024px PNGs via Imagen 4, removes backgrounds, downscales to target sizes, and delivers a review gallery for iterative refinement. Very detailed pipeline description. | 3 / 3 |
Completeness | Clearly answers both 'what' (generate icon sets using Imagen 4 with background removal, downscaling, and review gallery) and 'when' (explicit 'Use this skill when...' clause plus a detailed 'Trigger on:' list). | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural trigger terms including 'icon set', 'generate icons', 'app icons', 'custom icons', 'colorful icons', 'cartoon icons', 'emoji icons', 'make icons', and 'icon generation'. These are terms users would naturally use. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive with a clear niche: colorful icon set generation specifically via Google Imagen 4. The combination of icon-specific triggers and the Imagen 4 tool reference makes it very unlikely to conflict with general image generation or design skills. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
85%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a strong, well-crafted skill that provides a clear end-to-end workflow for icon generation with excellent actionability and workflow clarity. The iterative review loop (Steps 5-6) is particularly well-designed with explicit instructions for each user action. Minor verbosity in the script-locating fallback and some explanatory notes could be trimmed, but overall the content is efficient and well-organized.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is mostly efficient but includes some unnecessary detail. The script-locating fallback block is verbose, the pipeline overview duplicates the step-by-step content, and some notes (like gallery inlining explanation) explain things Claude would already understand. However, most content earns its place. | 2 / 3 |
Actionability | Highly actionable with concrete bash commands, exact JSON manifest format, specific file paths, executable code blocks for every step, and precise details like size lists (16, 24, 32, 48, 64, 96, 128, 256px). Commands are copy-paste ready and the manifest schema is fully specified. | 3 / 3 |
Workflow Clarity | Excellent multi-step workflow with clear sequencing (Steps 0-7), explicit validation via gallery review, a well-defined feedback loop (Steps 5-6 iterate until satisfied), and specific instructions for retry/drop/add operations including which files to delete. The pipeline overview provides a quick reference before diving into details. | 3 / 3 |
Progressive Disclosure | Well-structured with a pipeline overview at the top, detailed steps inline (appropriate since they're the core workflow), and a clear one-level-deep reference to STYLES.md for style preset prompts and manifest format. The standalone installation section is appropriately placed at the end. Content is logically organized without being monolithic. | 3 / 3 |
Total | 11 / 12 Passed |
Validation
100%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
Reviewed
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