API Backward-Compatibility Gate

Seed: openapi spec baseline, new spec changes, compatibility checker rules; example: detect removed fields, tightened enums

Implementation Guide

Implement an automated compatibility gate that runs on pull requests changing API definitions (OpenAPI/GraphQL). The gate should run comparators, list breaking changes with impact (required/optional fields removed, status code changes), and require a migration plan or version bump before merging. This prevents accidental client breakage and enforces API governance.

💡 Expert Q&A Insights

Q: \

How to handle intentionally breaking changes?\" \"

Q: Require explicit versioning and communication plans; gate must accept a documented justification and migration plan.\"\n\"

Can we auto-generate client stubs to validate compatibility?\" \"

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