cloudflare-r2
Guide for implementing Cloudflare R2 - S3-compatible object storage with zero egress fees. Use when implementing file storage, uploads/downloads, data migration to/from R2, configuring buckets, integrating with Workers, or working with R2 APIs and SDKs.
91
Quality
88%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Quality
Discovery
89%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 clearly identifies its niche (Cloudflare R2) and provides explicit trigger guidance. The 'Use when...' clause covers multiple relevant scenarios with natural developer terminology. The main weakness is that the capability descriptions could be more concrete (e.g., 'generate presigned URLs' or 'configure CORS policies' rather than general 'implementing file storage').
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (Cloudflare R2, S3-compatible object storage) and mentions several actions (implementing file storage, uploads/downloads, data migration, configuring buckets, integrating with Workers), but these are somewhat general categories rather than highly specific concrete actions like 'fill forms' or 'create pivot tables'. | 2 / 3 |
Completeness | Clearly answers both what (implementing Cloudflare R2 S3-compatible object storage) and when (explicit 'Use when...' clause listing six specific trigger scenarios: file storage, uploads/downloads, data migration, configuring buckets, integrating with Workers, working with R2 APIs/SDKs). | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural terms users would say: 'R2', 'file storage', 'uploads/downloads', 'data migration', 'buckets', 'Workers', 'R2 APIs', 'SDKs', 'S3-compatible', 'egress fees'. These are terms developers would naturally use when seeking help with R2. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive with clear niche - specifically targets Cloudflare R2, mentions S3-compatible storage, Workers integration, and zero egress fees. Unlikely to conflict with generic file storage or other cloud provider skills due to explicit Cloudflare/R2 branding. | 3 / 3 |
Total | 11 / 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 high-quality skill that excels in conciseness and actionability, providing comprehensive R2 coverage with executable examples across multiple SDKs and use cases. The progressive disclosure is well-implemented with clear section organization and references to detailed docs. The main weakness is the lack of explicit validation/verification steps in multi-step workflows like migrations and multipart uploads.
Suggestions
Add explicit validation steps to the Data Migration section (e.g., 'Verify migration: compare object counts and checksums between source and R2')
Include a verification step after multipart upload completion to confirm object integrity (e.g., HEAD request to verify size/etag)
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is lean and efficient, avoiding explanations of concepts Claude already knows. It jumps straight into actionable content without padding or unnecessary context about what object storage is or how S3 works. | 3 / 3 |
Actionability | Provides fully executable code examples across multiple languages (JavaScript, Python, bash), specific CLI commands, and copy-paste ready configurations. Every section includes concrete, working examples rather than pseudocode or vague descriptions. | 3 / 3 |
Workflow Clarity | While steps are clearly listed for individual operations, the skill lacks explicit validation checkpoints for multi-step processes like data migration or multipart uploads. For example, the migration section doesn't include verification steps to confirm successful transfer. | 2 / 3 |
Progressive Disclosure | Excellent structure with a clear overview, well-organized sections, and explicit references to detailed documentation files (references/api-reference.md, etc.). Content is appropriately split between quick start, common operations, and advanced topics with clear 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
- einverne/dotfiles
- Commit
b1b2fe0
- Reviewed
Table of Contents
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