Why Basic HTTP Error Handling Falls Short for LLM APIs in Production

Standard HTTP error handling proves inadequate for LLM APIs once systems hit real production failures, according to a developer analysis published on DEV Community. A 429 rate-limit response from an LLM provider can signal several distinct problems — including requests-per-minute caps, token limits, daily quotas, or provider-side throttling — each requiring a different operational response. Most SDKs identify that a request failed but leave applications to decide whether to retry, queue, switch models, or degrade gracefully. The author proposes a dedicated 'failure policy' layer that classifies provider-specific errors into internal categories and returns actionable decisions rather than raw status codes. This approach aims to bridge the gap between what code detects automatically and what engineers currently handle manually through post-incident runbooks.