“Apps should be self-contained in their bundles, and may not read or write data outside the designated container area.”
Apple is citing Guideline 2.5.2 to kneecap apps that let people build software without writing code. The official reason is security. The real reason is that vibe-coded apps threaten the App Store’s 30% cut by turning every user into a developer who doesn’t need to pay Apple’s toll. Can’t have that.