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ASP.NET Core patterns for designing AI-agent-ready APIs: DTOs, idempotency keys, pagination, machine-readable errors, and fine-grained auth.

• Accept-Language shows a flag and the language name next to each entry, like en-US,en;q=0.9.
• sec-ch-ua and sec-ch-ua-full-version-list show the browser name and version with a browser icon.
• sec-ch-ua-platform shows an icon for the operating system, like Windows.
• sec-ch-ua-mobile shows a device icon and whether the value means true or false.

ASP.NET Core 10 dropped Swagger UI from its default project template. See how Swagger stacks up against Scalar for API docs, and set up each one.

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Discover how C# 14 extension members turn plain records into self-validating, immutable configuration models for cleaner ASP.NET Core apps today.

messages_hide, messages_fix, and messages_open accept an optional flag to apply the change to every other message sharing the same grouping hash, while messages_bot and messages_unbot take a list of up to 500 message IDs per call. All six tools only act when a user has explicitly asked for that specific change, never speculatively while an AI is just investigating errors.

The documentation has been updated to include the new tools.

A beginner’s guide to RAG: build a simple keyword-matching retrieval pipeline in an ASP.NET Core Web API, step by step, no embeddings needed.