What does semver-checks do?

It diffs TypeScript API surfaces between git refs or paths, classifying changes as major, minor, or patch based on 40+ semver rules—no commit parsing needed.

How to use semver-checks in CI?

Add `npx semver-checks compare v1.0.0 HEAD --strict` to your GitHub Actions or pipeline; it exits 1 on breaks, blocking deploys.

Does semver-checks detect all breaking changes?

API surface only—no behavioral changes, default exports, or semantic equivalents; false positives possible on type order.

🛠️ Developer Tools

semver-checks: The CLI That Finally Ends TypeScript's SemVer Guessing Game

Everyone expected another round of gut-feel semver arguments in your next PR. semver-checks flips the script: pure TypeScript type diffs, no mercy for breaking changes.

theAIcatchup Apr 11, 2026 3 min read

CLI output from semver-checks showing breaking changes and major bump recommendation

⚡ Key Takeaways

Eliminates semver guesswork with pure TypeScript type diffs—no commit parsing needed. 𝕏
CI-ready with --strict flag to block breaking changes automatically. 𝕏
Open-source, extensible, but limited to API surface (no runtime behavior). 𝕏

Published by

theAIcatchup

Community-driven. Code-first.

#TypeScript #ci-cd #devtools #npm #open source #semver #semver-checks

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Originally reported by Dev.to

⚡ Key Takeaways

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