Build MCP (Model Context Protocol) servers on Cloudflare Workers with tools, resources, and prompts.
70
56%
Does it follow best practices?
Impact
94%
1.64xAverage score across 3 eval scenarios
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./plugins/cloudflare-mcp-server/skills/cloudflare-mcp-server/SKILL.mdQuality
Discovery
40%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 identifies a clear and distinctive niche (MCP servers on Cloudflare Workers) but is too terse to be effective for skill selection. It lacks a 'Use when...' clause, which is critical for Claude to know when to activate this skill, and the capability listing is high-level rather than action-oriented.
Suggestions
Add an explicit 'Use when...' clause, e.g., 'Use when the user wants to create, configure, or deploy an MCP server on Cloudflare Workers, or asks about hosting MCP tools as serverless functions.'
List more specific concrete actions such as 'scaffold project structure, define tool handlers, configure resource endpoints, set up authentication, deploy to Cloudflare Workers.'
Include natural trigger term variations users might say, such as 'MCP server template', 'deploy MCP', 'serverless MCP', 'Cloudflare MCP', or 'remote MCP server'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (MCP servers on Cloudflare Workers) and mentions some components (tools, resources, prompts), but doesn't list specific concrete actions like 'scaffold project', 'configure endpoints', 'deploy to Cloudflare', etc. | 2 / 3 |
Completeness | Describes what it does (build MCP servers on Cloudflare Workers) 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 'what' is also only moderately detailed, warranting a 1. | 1 / 3 |
Trigger Term Quality | Includes relevant technical terms like 'MCP', 'Model Context Protocol', 'Cloudflare Workers', 'tools', 'resources', and 'prompts', but misses common user variations like 'deploy', 'MCP server template', 'worker', or 'serverless MCP'. | 2 / 3 |
Distinctiveness Conflict Risk | The combination of MCP servers specifically on Cloudflare Workers is a very clear niche that is unlikely to conflict with other skills. The intersection of these two technologies creates a distinct trigger profile. | 3 / 3 |
Total | 8 / 12 Passed |
Implementation
72%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill is well-structured as a hub document with strong progressive disclosure and good conciseness. Its main weaknesses are the lack of an explicit multi-step workflow in the overview (e.g., create → configure → deploy → verify) and slightly incomplete actionability due to placeholder code in the example tool. Adding a brief numbered workflow and ensuring all code snippets are fully executable would elevate it significantly.
Suggestions
Add a brief numbered workflow (e.g., 1. Scaffold project 2. Define tools 3. Deploy with wrangler 4. Verify with curl) to provide clear sequencing and at least one validation checkpoint.
Replace the `[...]` placeholder in the searchDocs tool example with actual executable code (e.g., a filtered array) so all code snippets are copy-paste ready.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is lean and efficient. It doesn't explain what MCP is in detail or what Cloudflare Workers are—it assumes Claude knows. The core concepts section is a brief bullet list, and the rest is code examples and references. | 3 / 3 |
Actionability | The Quick Start provides a runnable code example, but the example tool uses `[...]` placeholder syntax rather than executable code. The actual detailed guidance is deferred to reference files, so the SKILL.md itself provides incomplete concrete guidance for building a full server. | 2 / 3 |
Workflow Clarity | There is no explicit step-by-step workflow for building and deploying an MCP server on Cloudflare Workers. The quick-start-guide.md reference promises a 'complete step-by-step workflow' but the SKILL.md itself lacks sequenced steps, validation checkpoints, or deployment verification steps. | 2 / 3 |
Progressive Disclosure | Excellent progressive disclosure with a concise overview in SKILL.md and well-organized, clearly signaled one-level-deep references to documentation files and templates. Each reference includes line counts and brief descriptions of what it covers. | 3 / 3 |
Total | 10 / 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.
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Table of Contents
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