### pros - https://llmstxt.org/ - Major AI vendors are beginning to adopt llms.txt as a format for AI-readable documentation: - OpenAI - https://developers.openai.com/api/llms-full.txt https://developers.openai.com/api/docs/llms.txt - Google - Google AI for Developers https://ai.google.dev/api/llms.txt - Gemini API Dev skills https://ai.google.dev/gemini-api/docs/coding-agents - Agent Development Kit https://adk.dev/llms.txt https://adk.dev/llms-full.txt - Anthropic - https://platform.claude.com/llms.txt - https://platform.claude.com/docs/en/resources/overview - https://www.anthropic.com/engineering/writing-tools-for-agents ### cons - [Google: No AI System Currently Uses LLMs.txt](https://www.seroundtable.com/google-ai-llms-txt-39607.html) —— Jun 18, 2025
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