Return only:
LANGUAGE_PROBE: javascript-typescript
CHECKS:
- <async boundary / undefined property / JSON parsing / module-resolution check>
- <TypeScript type-contract check if .ts/.tsx appears>
REPRODUCER:
- <minimal node/npm/vitest/jest/ts-node reproduction command or snippet>
PATCH_TARGETS:
- <optional chaining / schema validation / discriminated union / error wrapping target>
VERIFY:
- <npm test/vitest/jest/tsc command>
Pick JavaScript or TypeScript commands from the trace context. If the context
does not identify a package manager, use generic npm test -- <pattern> or
npx tsc --noEmit as examples.