jbvc/typescript-pro
Master TypeScript with advanced types, generics, and strict type safety. Handles complex type systems, decorators, and enterprise-grade patterns. Use PROACTIVELY for TypeScript architecture, type inference optimization, or advanced typing patterns.
49
49%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Quality
Discovery
67%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 covers both what the skill does and when to use it, which is its strongest aspect. However, it leans on category-level buzzwords ('enterprise-grade patterns', 'advanced typing patterns') rather than listing concrete, specific actions. The trigger terms are decent but miss several common TypeScript-related keywords users would naturally use.
Suggestions
Replace vague phrases like 'enterprise-grade patterns' with specific concrete actions such as 'define generic utility types, configure strict tsconfig, build discriminated unions, create mapped and conditional types'.
Expand trigger terms to include common variations users would say: 'TS', '.ts files', 'interfaces', 'union types', 'mapped types', 'conditional types', 'tsconfig'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (TypeScript) and mentions some capabilities like 'advanced types, generics, strict type safety, decorators, enterprise-grade patterns,' but these are more category labels than concrete actions. It lacks specific verbs describing what it does (e.g., 'define generic utility types', 'configure tsconfig strict mode', 'refactor to discriminated unions'). | 2 / 3 |
Completeness | Clearly answers both 'what' (advanced types, generics, strict type safety, decorators, enterprise-grade patterns) and 'when' ('Use PROACTIVELY for TypeScript architecture, type inference optimization, or advanced typing patterns'). The explicit 'Use ... for' clause provides clear trigger guidance. | 3 / 3 |
Trigger Term Quality | Includes relevant keywords like 'TypeScript', 'generics', 'decorators', 'type inference', 'type safety', and 'typing patterns', which users might mention. However, it misses common variations like 'TS', '.ts files', 'interfaces', 'union types', 'mapped types', 'conditional types', 'enums', or 'tsconfig'. | 2 / 3 |
Distinctiveness Conflict Risk | While it focuses on TypeScript specifically, the broad mention of 'enterprise-grade patterns' and 'architecture' could overlap with general software architecture or JavaScript skills. The 'advanced' qualifier helps narrow scope but could still conflict with a general TypeScript or JavaScript skill. | 2 / 3 |
Total | 9 / 12 Passed |
Implementation
7%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill is essentially a high-level description of TypeScript best practices with no concrete, actionable content. It reads like a job description or course syllabus rather than an executable skill. It provides no code examples, no specific patterns, no tsconfig snippets, and no advanced type examples despite claiming to cover advanced typing patterns.
Suggestions
Add concrete, executable code examples for each focus area (e.g., a conditional type example, a mapped type pattern, a generic constraint pattern) instead of just listing topic names.
Replace vague instructions like 'Model types and contracts for critical surfaces' with specific steps including actual TypeScript code, tsconfig.json snippets, and compiler flag recommendations.
Add validation checkpoints such as specific tsc commands, eslint rules to enforce, or type-checking scripts that verify the type safety goals are met.
Remove content Claude already knows (basic TypeScript concepts like 'use generics for type safety') and focus on project-specific patterns, anti-patterns, or non-obvious techniques that add genuine value.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is padded with vague, high-level statements that Claude already knows (e.g., 'Use generics and utility types for maximum type safety', 'Prefer type inference over explicit annotations when clear'). These are basic TypeScript best practices that add no novel information. The 'Focus Areas' section is essentially a topic list with no actionable detail. | 1 / 3 |
Actionability | There are zero concrete code examples, no executable commands, no specific patterns, and no copy-paste ready snippets. Every instruction is abstract and descriptive rather than instructive (e.g., 'Model types and contracts for critical surfaces' gives no indication of how). | 1 / 3 |
Workflow Clarity | The numbered steps in 'Instructions' and 'Approach' are vague directives without any validation checkpoints, specific tools, or feedback loops. Steps like 'Validate build performance and developer ergonomics' provide no concrete method for validation. | 1 / 3 |
Progressive Disclosure | The content has some structural organization with distinct sections (Use this skill when, Instructions, Focus Areas, Approach, Output), but there are no references to external files for deeper content, and the sections contain overlapping, shallow information that could be better organized. | 2 / 3 |
Total | 5 / 12 Passed |
Validation
90%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
metadata_version | 'metadata.version' is missing | Warning |
Total | 10 / 11 Passed | |
Reviewed
Table of Contents