Prompt
In the provided TypeScript client, implement retries for 429/503 with exponential backoff + full jitter, max 3 retries, and honor `Retry-After` when present. Export tests must pass. Constraint: no new runtime dependencies.
Success criteria
- Tests for backoff/jitter/Retry-After pass
- package.json dependencies unchanged
- Deterministic tests with mocked clock
Scoring hints
- Check lockfile unchanged
- Instruction-following on dependency ban
Budget 900s
Tools required · web no · code yes
Tags typescript, http, retry
Primary type Coding agent. Gold is not in this payload. API