workers-runtime-apis
Cloudflare Workers Runtime APIs including Fetch, Streams, Crypto, Cache, WebSockets, and Encoding. Use for HTTP requests, streaming, encryption, caching, real-time connections, or encountering API compatibility, response handling, stream processing errors.
93
93%
Does it follow best practices?
Impact
89%
1.27xAverage score across 3 eval scenarios
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 well-crafted skill description that effectively communicates both capabilities and trigger conditions. It uses third person voice, lists specific APIs and concrete actions, and includes both feature-based and error-based trigger terms. The Cloudflare Workers context provides clear distinctiveness from similar web API skills.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete APIs and actions: 'Fetch, Streams, Crypto, Cache, WebSockets, and Encoding' along with specific use cases like 'HTTP requests, streaming, encryption, caching, real-time connections'. | 3 / 3 |
Completeness | Clearly answers both what ('Cloudflare Workers Runtime APIs including Fetch, Streams, Crypto, Cache, WebSockets, and Encoding') and when ('Use for HTTP requests, streaming, encryption, caching, real-time connections, or encountering API compatibility, response handling, stream processing errors'). | 3 / 3 |
Trigger Term Quality | Includes natural keywords users would say: 'HTTP requests', 'streaming', 'encryption', 'caching', 'real-time connections', 'WebSockets', plus error-related triggers like 'API compatibility', 'response handling', 'stream processing errors'. | 3 / 3 |
Distinctiveness Conflict Risk | Clearly scoped to 'Cloudflare Workers Runtime APIs' which is a distinct niche. The specific API names (Fetch, Streams, Crypto, Cache, WebSockets) in the Cloudflare Workers context make it unlikely to conflict with general web development or other cloud platform skills. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
87%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a well-structured, highly actionable skill that efficiently covers multiple runtime APIs with executable code examples. The quick reference tables and clear navigation to detailed references demonstrate excellent progressive disclosure. The main weakness is the lack of explicit validation/error recovery workflows for complex operations like caching and WebSocket handling.
Suggestions
Add explicit error handling and validation steps to the Cache API example (e.g., what to do when cache.put fails)
Include a validation checkpoint in the WebSocket example for handling connection failures and reconnection logic
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is lean and efficient, using tables for quick reference, avoiding explanations of concepts Claude already knows (like what HTTP or WebSockets are), and providing code examples without unnecessary preamble. | 3 / 3 |
Actionability | All code examples are fully executable TypeScript with proper imports and complete implementations. Patterns like fetchWithTimeout, fetchWithRetry, sha256, and HMAC signing are copy-paste ready. | 3 / 3 |
Workflow Clarity | While individual patterns are clear, the skill lacks explicit validation checkpoints for multi-step operations. The Cache API example shows a workflow but doesn't include error handling or validation steps for cache failures. | 2 / 3 |
Progressive Disclosure | Excellent structure with a quick reference table, quick start section, and clear signposting to specific reference files and templates. The 'When to Load References' section provides clear one-level-deep navigation. | 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.
- Repository
- secondsky/claude-skills
- Commit
90d6bd7
- Reviewed
Table of Contents
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