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Developer Kit

API Contract Enforcer

Validates that code changes do not silently break API contracts, checking schemas, status codes, and backward compatibility with severity-rated breaking-change reports. Useful for microservices teams preventing cross-service regressions. Backend engineers shipping API changes, platform teams owning microservice contracts, SDK maintainers managing versioning, API-first companies with external consumers. A silent breaking change — a renamed field, a dropped nullable, a tightened validation — cascades through consumer services and client apps and surfaces hours later as pager alerts. Contract testing frameworks exist, but they require setup most teams do not invest in until after the first costly incident. A structured enforcer runs against any PR that touches an API surface and flags breaking changes before merge.

Nexus CertifiedClaude CodeCodexOpenClaw
apicontractsbreaking-changesmicroservicescompatibility

One-Time Purchase

$19.99

Sample Output
# API Contract Diff — `/v1` surface

**Reference:** tag `v1.3.0`
**Current:** HEAD (branch `feat/refactor-payments-surface`)
**API type:** REST, OpenAPI 3.1
**Stability commitment:** public-versioned (external consumers)

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Includes support for Claude Code, Codex, and OpenClaw in the same license.

What You Get With This Skill

Validates that code changes do not silently break API contracts, checking schemas, status codes, and backward compatibility with severity-rated breaking-change reports. Useful for microservices teams preventing cross-service regressions.

All ClearPoint Nexus Skills Include

  • Production-ready workflow packaging for three supported platforms.
  • Reusable structure designed for repeatable operator tasks.
  • Clear deliverable format, not just raw prompt output.

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