Configure tsconfig.json as a security control — strict, noUncheckedIndexedAccess, exactOptionalPropertyTypes, useUnknownInCatchVariables, module resolution, and declaration-file auditing. Use when authoring tsconfig.json, enabling strict mode, or hardening module resolution.

Secure TypeScript Configuration Developer

Generate secure TypeScript with strict tsconfig, Zod/io-ts/Valibot runtime validation, branded types, prototype-pollution defenses, discriminated-union state, and no-any/no-ts-ignore discipline. Use when writing TypeScript across any framework or Node/browser runtime.

Secure TypeScript Developer

Harden TypeScript type safety by banning any, constraining unknown, replacing type assertions with validation, applying template-literal types, Object.freeze, and satisfies for safe configs. Use when reviewing TS types, removing any/as casts, or hardening config objects.

Secure TypeScript Type Safety Developer

Implement TypeScript runtime validation at trust boundaries with Zod/io-ts/Valibot schemas, z.infer type derivation, branded types, safeParse error handling, and type narrowing over assertions. Use when writing API boundary parsers, input validators, or schema-first types.