Claude-API-guard, a CI check that catches Claude/OpenAI SDK breaking

What happened

Developer MarkMoneyMan introduced Claude-API-guard, a continuous integration check published on GitHub as Claude-api-goat. The utility, highlighted in Hacker News submission 49551793, detects breaking changes in OpenAI and Claude software development kits. This release aims to resolve silent failures caused by unannounced vendor modifications. (44 words)

How it works

Re-draft Intro 2: This

Why it matters

claude-api-guard A GitHub Action that scans your codebase for usage of the Claude/Anthropic and OpenAI APIs that's broken, or about to break, because of a known, dated API change — and auto-fixes the mechanical ones. It keeps its own rule set current by reading each provider's official release notes on a schedule and extracting new breaking changes with an LLM, so it doesn't go stale the way a hand-maintained list would.

Who is affected

This tool is meant to be the thing that catches that in CI, before it ships. OpenAI support followed the same bar: hand-extracted from OpenAI's own changelog and migration guides, then fully triaged against a large real codebase (litellm) until every finding checked out.

What to watch next

The plan from here is to keep expanding provider coverage outward from that same foundation — this is meant to grow into a broader "breaking-change guard for every API your project depends on" tool, not stay a single-provider niche script. See the full write-up from HN Claude/Codex/Fable via the source link for quotes and complete context.