websocket-engineer
Use when building real-time communication systems with WebSockets or Socket.IO. Invoke for bidirectional messaging, horizontal scaling with Redis, presence tracking, room management.
72
88%
Does it follow best practices?
Impact
—
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 a strong skill description that clearly defines its scope around real-time communication systems using WebSockets and Socket.IO. It provides explicit trigger conditions, lists concrete capabilities, and occupies a distinct niche that minimizes conflict risk. The description is concise yet comprehensive, following the recommended pattern well.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: bidirectional messaging, horizontal scaling with Redis, presence tracking, room management. These are clear, actionable capabilities. | 3 / 3 |
Completeness | Explicitly answers both what (bidirectional messaging, horizontal scaling with Redis, presence tracking, room management) and when ('Use when building real-time communication systems with WebSockets or Socket.IO'). Has a clear 'Use when...' clause. | 3 / 3 |
Trigger Term Quality | Includes strong natural keywords users would say: 'WebSockets', 'Socket.IO', 'real-time communication', 'Redis', 'presence tracking', 'room management', 'bidirectional messaging'. Good coverage of terms a developer would naturally use. | 3 / 3 |
Distinctiveness Conflict Risk | Clearly scoped to real-time communication with WebSockets/Socket.IO, which is a distinct niche. The combination of WebSockets, Redis scaling, presence tracking, and room management makes it very unlikely to conflict with other skills. | 3 / 3 |
Total | 12 / 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.
This is a strong, actionable skill with executable code examples, a clear multi-step workflow with validation checkpoints, and well-organized reference pointers. Its main weaknesses are moderate verbosity (keyword dump section, some redundant explanations in constraints) and the inability to verify that referenced bundle files actually exist. The code examples are production-quality and cover both server and client concerns comprehensively.
Suggestions
Remove or significantly trim the 'Knowledge Reference' keyword list — it reads as a tag cloud rather than actionable guidance.
Consider moving the full code examples into reference files (e.g., references/patterns.md) and keeping only a minimal snippet inline, to better leverage the progressive disclosure structure already outlined in the reference table.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Generally efficient but has some unnecessary elements — the 'Knowledge Reference' section is a keyword dump that adds little value, comments in code are sometimes obvious (e.g., 'Authentication middleware — runs before connection is established'), and the constraints section has some explanatory parentheticals Claude would already know. However, the code examples are well-targeted and most content earns its place. | 2 / 3 |
Actionability | Provides fully executable, copy-paste-ready code for both server and client implementations with real libraries (Socket.IO, Redis adapter, JWT). Includes concrete validation commands (wscat), specific configuration values (pingTimeout, reconnection parameters), and complete working examples covering auth, rooms, presence, and reconnection with message queuing. | 3 / 3 |
Workflow Clarity | The core workflow is clearly sequenced with explicit validation checkpoints at steps 4 (local validation with specific tool and checks), 5 (verify Redis before enabling adapter, confirm sticky sessions with test connections), and 6 (monitoring with specific metrics and alerts). Includes feedback-loop thinking — verify before proceeding at each scaling step. | 3 / 3 |
Progressive Disclosure | The reference table with 'Load When' guidance is well-structured and clearly signals when to consult each reference file. However, no bundle files were provided, so the referenced files (references/protocol.md, scaling.md, etc.) cannot be verified to exist. The main SKILL.md also includes substantial inline code that could arguably be split into reference files, making the body longer than ideal for an overview. | 2 / 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.
- Repository
- jeffallan/claude-skills
- Commit
e8be415
- Reviewed
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