Batch-generate images via OpenAI Images API. Random prompt sampler + `index.html` gallery.
68
63%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/openai-image-gen/SKILL.mdQuality
Discovery
50%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 is concise and identifies a clear, distinctive niche (batch image generation via OpenAI API with gallery output). However, it completely lacks a 'Use when...' clause, which is critical for Claude to know when to select this skill. The trigger terms are somewhat technical and miss common user phrasings like 'DALL-E' or 'create images'.
Suggestions
Add a 'Use when...' clause, e.g., 'Use when the user wants to generate multiple images in batch, create an image gallery, or work with the OpenAI Images API.'
Include more natural trigger terms users would say, such as 'DALL-E', 'generate images', 'create pictures', 'AI image generation', or 'image gallery'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple concrete actions: batch-generate images, random prompt sampling, and creating an index.html gallery. These are specific, actionable capabilities. | 3 / 3 |
Completeness | Describes what it does (batch-generate images, prompt sampling, gallery creation) but completely lacks a 'Use when...' clause or any explicit trigger guidance for when Claude should select this skill. Per rubric guidelines, missing 'Use when' caps completeness at 2, and the 'when' is entirely absent, warranting a 1. | 1 / 3 |
Trigger Term Quality | Includes some relevant keywords like 'images', 'OpenAI Images API', 'gallery', and 'batch-generate', but misses common user terms like 'DALL-E', 'image generation', 'create images', or 'generate pictures'. Users may not naturally say 'batch-generate' or 'prompt sampler'. | 2 / 3 |
Distinctiveness Conflict Risk | Highly distinctive with a clear niche: batch image generation via OpenAI Images API with a specific gallery output format. Unlikely to conflict with other skills due to the specific combination of OpenAI API, batch generation, and HTML gallery. | 3 / 3 |
Total | 9 / 12 Passed |
Implementation
77%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A solid, actionable skill with excellent executable examples covering multiple models and flag combinations. The main weakness is the verbose model-specific parameters section which reads like API reference documentation that could be offloaded to a separate file or the script's help text, reducing token cost while preserving the useful quick-start examples.
Suggestions
Move the detailed model-specific parameters (size, quality, style tables) to a separate REFERENCE.md or rely on the script's --help output, keeping only a brief summary in SKILL.md.
Trim the 'Other Notable Differences' section to just the critical gotchas (e.g., dall-e-3 n=1 limit) since Claude can discover other parameters from the script.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The model-specific parameters section is quite detailed and reference-like, which could be in a separate file or the script's --help output. The run examples are useful but the parameter tables add bulk that Claude could discover from the script itself. | 2 / 3 |
Actionability | Provides fully executable commands with concrete flags and examples. The run commands are copy-paste ready with realistic flag combinations covering all three models. | 3 / 3 |
Workflow Clarity | This is a simple single-task skill (run a script, view output). The workflow is clear: run the command, open the gallery. No destructive or batch operations requiring validation checkpoints beyond what the script handles internally. | 3 / 3 |
Progressive Disclosure | The model-specific parameters section is extensive inline content that could be better placed in a separate reference file or left to --help. The skill would benefit from a leaner overview with a pointer to detailed parameter docs. | 2 / 3 |
Total | 10 / 12 Passed |
Validation
72%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 8 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
metadata_version | 'metadata.version' is missing | Warning |
metadata_field | 'metadata' should map string keys to string values | Warning |
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 8 / 11 Passed | |
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Table of Contents
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