XML, Markdown, or JSON

Show HN: XML, Markdown, or JSON: Which gives LLMs the most reliable boundaries?

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EU legislation (which affects UK and US companies in many cases) requires being able to truly reconstruct agentic events.I've worked in a number of regulated industries off & on for years, and recently hit this gap.We already had strong observability, but if someone asked me to prove exactly what happened for a specific AI decision X months ago (and demonstrate that the log trail had not been altered), I could not.The EU AI Act has already entered force, and its Article 12 kicks-in in August this year, requiring automatic event recording and six-month retention for high-risk systems, which many legal commentators have suggested reads more like an append-only ledger requirement than standard

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Website: systima.ai/blog/delimiter-hypothesis