The description is specific about what it does and has a clear niche, but lacks an explicit 'Use when...' clause that would help Claude know when to select it. Trigger terms are somewhat narrow and could benefit from more natural user-facing language variations.

Suggestions

Add an explicit 'Use when...' clause, e.g., 'Use when the user wants to add a new method or endpoint to an existing React service file without rewriting the entire file.'

Include more natural trigger terms users might say, such as 'add method', 'extend service', 'add endpoint', 'append function to class', or 'update service file'.

Dimension	Reasoning	Score
Specificity	The description lists concrete actions: 'updates existing React API + domain services', 'inserting new methods', and specifies constraints 'without replacing full files or class bodies'. These are specific, actionable capabilities.	3 / 3
Completeness	The 'what' is clearly stated (inserting new methods into React API and domain services safely), but there is no explicit 'Use when...' clause or equivalent trigger guidance, which caps this at 2 per the rubric.	2 / 3
Trigger Term Quality	Includes relevant terms like 'React', 'API', 'domain services', 'new methods', but misses common user phrasings. Users might say 'add a method', 'extend a service', 'add endpoint', or 'modify service class' — these natural variations are absent.	2 / 3
Distinctiveness Conflict Risk	The description carves out a clear niche: it's specifically about inserting new methods into existing React API and domain service files without full replacement. This is distinct enough to avoid conflicts with general React skills or generic code editing skills.	3 / 3
	Total	10 / 12 Passed

Implementation

64%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This is a focused, well-scoped skill for a specific task (inserting methods into existing service files). Its strengths are conciseness and clear hard rules that prevent destructive operations. Its weaknesses are the lack of complete executable code examples and missing explicit validation checkpoints in the workflow for what is essentially a file-modification operation.

Suggestions

Add a complete, executable TypeScript code example showing a full method insertion for both the API class and domain class, with proper type signatures and return types.

Expand the process section with explicit validation steps, e.g., 'After insertion, verify the file still contains all previously existing method names' with a concrete check mechanism.

Convert the `update-rs-2.md` reference to a proper markdown link with a relative path so the reference is navigable and verifiable.

Dimension	Reasoning	Score
Conciseness	The skill is lean and efficient. It assumes Claude knows React, TypeScript, and service patterns. Every section serves a purpose—no explanations of what API services are or how classes work. The 'Parameters to infer (do not print as a checklist)' note is a nice touch that saves output tokens.	3 / 3
Actionability	The skill provides clear rules and templates (e.g., get uses `api.get(..., { params: data })`), but lacks fully executable code examples. The insert rules describe patterns in shorthand rather than showing complete, copy-paste-ready method implementations with proper TypeScript signatures and return types.	2 / 3
Workflow Clarity	The process is stated as 'Read -> check duplicates -> insert in class -> verify existing methods remain -> save' which is a clear sequence, but it lacks explicit validation checkpoints. Given that this involves modifying existing files (a potentially destructive operation), there should be a verify/feedback loop step—e.g., confirming existing methods are intact before saving, or a rollback strategy if something goes wrong.	2 / 3
Progressive Disclosure	The skill references `update-rs-2.md` for scaffold creation and mentions a separate 'creation skill,' showing awareness of content splitting. However, no bundle files are provided, so we can't verify these references resolve. The content itself is well-sectioned but the reference to `update-rs-2.md` is not clearly signaled with a link or path.	2 / 3
	Total	9 / 12 Passed

Validation

100%

Warnings & errors only

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.

Reviewed

16 days ago

Table of Contents

Discovery Implementation Validation