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Anthropic Messages is a different protocol, not a flag — and shims leak

This story is from 2026-09-16. It is preserved in the archive; the latest stories are on the live feed.

The failure has a shape. Your Claude-based agent connects to the new endpoint, answers the first question well, executes a tool, comes back, executes another — and then somewhere around step seven it stops calling tools and starts narrating that it would call a tool. Or it loses the thread of a lon…

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  1. 2026-09-16 01:44 · DEV Community — AI
    Anthropic Messages is a different protocol, not a flag — and shims leak

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  2. Hackers Used Anthropic’s Claude to Break Into OpenAI — Wall Street Journal Technology
  3. Anthropic adds support for the AGENTS.md instructions spec to Claude Code; OpenAI contributed AGENTS.md to the Agentic AI Foundation last year (Thomas Claburn/The Register) — Techmeme
  4. Claude, Anthropic’s AI model, is helping to develop the next version of itself — Fast Company AI
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  6. Minimax H3 template Missing. — r/comfyui
  7. OpenAI ‘ethically hacked’ with help of Anthropic’s Claude chatbot — The Guardian AI
  8. Anthropic says its chatbot Claude is taking over the work of building its own successor — Washington Post AI

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