Apple Caught by Developers: Claude Code Instruction File Found in Support App Production Package
On May 1, 2016, developer @aaronp613 reverse-engineered Apple Support App v5.13 and discovered a CLAUDE.md file in the production package. This is an instruction file for Anthropic Claude Code used to read project structures and development specifications. Two screenshots confirm that Apple's internal UI library and chat system are written using Claude Code.
Apple responded quickly, issuing a hotfix to v5.13.1 within hours to remove the file.
CLAUDE.md may become the next generation of '.env'; whoever leaks it first will trend.
Source: Public Information
ABAB AI Insight
Apple has previously showcased AI features cautiously at events like WWDC. The leak of the CLAUDE.md file from the Support App reveals that it has been using Anthropic Claude Code extensively internally, continuing its strategy of 'buying rather than building' while actually employing a mixed approach, similar to its past reliance on external AI models to accelerate development.
In terms of capital strategy, Apple is rapidly iterating internal tools through external models like Anthropic, shifting funding towards AI-assisted development processes, motivated by the goal of enhancing engineer efficiency and reducing labor costs.
Similar to other tech giants quietly integrating external AI tools, this incident marks a transition phase for large companies from experimental to production use of AI.
Essentially, this represents a technological substitution: Claude Code replaces some manual coding and specification maintenance, with the mechanism standardizing development processes through instruction files, shifting pricing power to AI companies providing powerful code agents, as large firms like Apple move from purely self-developed to an efficient mixed model.
ABAB News · Cognitive Law
Production package leaks often expose real usage.
When AI writes code, large companies are also using it secretly.
The next generation of development specifications starts with leaked files.