Notes & Caveats

Requires Node 20+ for AbortSignal.any.
Non retryable status codes (default 400, 401, 403) fail fast instead of consuming a retry and are reported as LLMError('api', status).
An already aborted signal rejects immediately with LLMError('aborted') before any request is dispatched.
Per attempt timeouts throw LLMError('timeout') and can be retried like other transient failures.
jsonMode: false skips JSON parsing entirely and returns the raw string.
zod and provider SDKs (openai, groq-sdk, @anthropic-ai/sdk) are not bundled. Bring your own. This package only relies on their shapes structurally.