| name | lang-typescript |
| description | TypeScript language patterns and type safety rules — strict mode, no any, discriminated unions. Use when writing TypeScript code, reviewing types, or enforcing type safety. |
| allowed-tools | ["Bash","Read","Write","Edit","Grep","Glob","Agent"] |
| metadata | {"category":"universal","extends":"core-coding-standards","tags":["typescript","type-safety","language"],"status":"ready","version":4} |
Principles
- Enable strict mode — no implicit any, strict null checks
- Prefer discriminated unions over type assertions
- Use
unknown over any — narrow with type guards
Rules
See rules index for detailed patterns.
Examples
Positive Trigger
User: "Replace unsafe any usage with discriminated unions in this module."
Expected behavior: Use lang-typescript guidance, follow its workflow, and return actionable output.
Non-Trigger
User: "Design REST route naming conventions for a new backend."
Expected behavior: Do not prioritize lang-typescript; choose a more relevant skill or proceed without it.
Troubleshooting
Skill Does Not Trigger
- Error: The skill is not selected when expected.
- Cause: Request wording does not clearly match the description trigger conditions.
- Solution: Rephrase with explicit domain/task keywords from the description and retry.
Guidance Conflicts With Another Skill
- Error: Instructions from multiple skills conflict in one task.
- Cause: Overlapping scope across loaded skills.
- Solution: State which skill is authoritative for the current step and apply that workflow first.
Output Is Too Generic
- Error: Result lacks concrete, actionable detail.
- Cause: Task input omitted context, constraints, or target format.
- Solution: Add specific constraints (environment, scope, format, success criteria) and rerun.
Workflow
- Identify whether the request clearly matches
lang-typescript scope and triggers.
- Apply the skill rules and referenced guidance to produce a concrete result.
- Validate output quality against constraints; if gaps remain, refine once with explicit assumptions.
