EDGE FDE
BeginnerVersion prompts like product copy
Roll back a bad prompt in minutes instead of hunting through app builds.
Version prompts like product copy, then route and roll them back with Dynamic Profiles and Dynamic Instructions.
Store versions, point a Dynamic Profile at the live one, and roll back without a new app build. iOS 27 and macOS 27 only.
Lessons
Key concepts
- Prompts are product copy: version, owner, live flag, and a rollback path.
- Your registry stores versions. Apple provides Dynamic Profiles and Dynamic Instructions as the runtime switch.
- One live record per feature. Retired records stay for rollback.
- Bundle
prompts.jsonand eval before you mark a version live.
Takeaways
- You can store prompt versions as data, not hard-coded view strings.
- You can point a Dynamic Profile at the live record and roll back by id.
- You can ship a registry file the team can edit with a release checklist.
Agent briefs
Related courses
Test AI behavior before you ship · Stream tokens and measure speed · Trace every step of an AI call · Core AI vs Core ML vs MLX
Official references
Foundation Models · WWDC26 242 Dynamic Profiles · foundation-models-utilities