TypeScript language patterns and type safety rules — strict mode, no any, discriminated unions. Use when writing TypeScript code, reviewing types, or enforcing type safety.
70
Quality
58%
Does it follow best practices?
Impact
87%
0.96xAverage score across 3 eval scenarios
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/universal/lang-typescript/SKILL.mdunknown over any — narrow with type guardsSee rules index for detailed patterns.
User: "Replace unsafe any usage with discriminated unions in this module."
Expected behavior: Use lang-typescript guidance, follow its workflow, and return actionable output.
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.
lang-typescript scope and triggers.0a59ae9
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