Why it matters

Versioning enables safe iteration. Understanding shapes reliable agent evolution.

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The architecture

Semantic versioning: major.minor.patch for agents.

All artifacts versioned: prompts, tool schemas, model refs.

Agent versioning surfacesPrompt versionsGit-trackedTool schemasversionedModel pinsspecific versionBundle version per deploy; enable rollback + A/B
Versioning scope.
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How it works end to end

Bundling: agent 'version' = specific set of prompt + tools + model.

Rollback: revert to previous version quickly.

A/B testing: run multiple versions in parallel.

Deprecation: sunset old versions gradually.