Comprehensive TypeScript guidance covering compiler configuration, advanced types, utility types, type guards, strict mode workflows, and documentation patterns; use when configuring tsconfig, designing complex generics, making illegal states unrepresentable, fixing type errors, or writing testable and maintainable type-safe APIs.
Overall
score
99%
Does it follow best practices?
Validation for skill structure
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 excels across all dimensions. It provides comprehensive coverage of TypeScript-specific capabilities with concrete actions, includes natural trigger terms developers would use, explicitly states both what the skill does and when to use it, and maintains clear distinctiveness from other potential skills.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: 'compiler configuration', 'advanced types', 'utility types', 'type guards', 'strict mode workflows', 'documentation patterns', 'configuring tsconfig', 'designing complex generics', 'making illegal states unrepresentable', 'fixing type errors', 'writing testable and maintainable type-safe APIs'. | 3 / 3 |
Completeness | Clearly answers both what (comprehensive TypeScript guidance covering specific areas) AND when with explicit triggers ('use when configuring tsconfig, designing complex generics, making illegal states unrepresentable, fixing type errors, or writing testable and maintainable type-safe APIs'). | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural terms users would say: 'TypeScript', 'tsconfig', 'generics', 'type errors', 'type guards', 'utility types', 'strict mode', 'type-safe APIs'. These are terms developers naturally use when seeking TypeScript help. | 3 / 3 |
Distinctiveness Conflict Risk | Clear niche focused specifically on TypeScript with distinct triggers like 'tsconfig', 'generics', 'type guards', 'utility types'. Unlikely to conflict with general JavaScript or other language skills due to TypeScript-specific terminology. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
100%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is an exemplary skill that effectively consolidates extensive TypeScript guidance into a concise navigation hub. It excels at actionability with executable code examples, maintains clear workflow with validation checkpoints, and demonstrates excellent progressive disclosure by pointing to detailed reference files without burying content in nested layers.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is lean and efficient, consolidating ~3,372 lines into ~120 lines. It assumes Claude's TypeScript competence and avoids explaining basic concepts, with every section earning its place. | 3 / 3 |
Actionability | Provides fully executable code examples for quick fixes, concrete bash commands for type checking and doc generation, and copy-paste ready patterns. The anti-patterns section shows clear BAD/GOOD comparisons with working code. | 3 / 3 |
Workflow Clarity | The Navigation Workflow section provides a clear 6-step sequence with explicit validation checkpoints (run `npx tsc --noEmit` after each change) and feedback loops (if errors persist, consult specific reference files). | 3 / 3 |
Progressive Disclosure | Excellent structure as a navigation hub with clear one-level-deep references to specific files. The priority table, category organization, and explicit file paths make navigation straightforward without nested indirection. | 3 / 3 |
Total | 12 / 12 Passed |
Validation
91%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 |
|---|---|---|
allowed_tools_field | 'allowed-tools' contains unusual tool name(s) | Warning |
Total | 10 / 11 Passed | |
Install with Tessl CLI
npx tessl i pantheon-ai/typescript-advanced@0.1.1Reviewed
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