https://www.stahlundsoehne.at/llms.txt 2026-05-02 monthly 0.9 llm-discovery Machine-readable discovery and usage guide for AI agents and LLM consumers. high LLMGuide https://www.stahlundsoehne.at/openapi.json 2026-05-02 monthly 0.9 api-contract Machine-readable API specification for action-oriented agent integrations. high OpenAPI https://www.stahlundsoehne.at/agent.json 2026-05-02 monthly 0.85 agent-manifest Agent integration metadata referenced from llms.txt and robots. medium SoftwareApplication