Field Notes

Editorial notes on AI-engineering releases and research, each tied to its primary sources.

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1-12 of 157 matching notes
  1. anthropic.com

    Anthropic Moves Large Tool Libraries Out Of Context

    Anthropic's Tool Search Tool, Programmatic Tool Calling, and Tool Use Examples separate discovery, orchestration, and usage guidance for agents with large tool libraries.

    • tools
    • context-engineering
    • mcp
  2. arcee.ai

    Arcee Turns Scientific Post-Training Into A Run Ledger

    Arcee's open-model science write-up shows a 21-run post-training loop around Trinity Mini, held-out scientific environments, trace review, and a promoted specialist adapter.

    • open-models
    • scientific-ai
    • post-training
  3. learn.chatgpt.com

    Codex Gets A Model Migration Deadline

    OpenAI's ChatGPT and Codex changelog sets an August 31, 2026 cutoff for GPT-5.4 and GPT-5.4 mini in ChatGPT-signed Codex sessions, while keeping API-key paths available.

    • codex
    • models
    • developer-tools
  4. developers.googleblog.com

    Genkit Adds Progressive Disclosure For Agent Skills

    Genkit now loads Agent Skills through middleware that discovers SKILL.md metadata first and activates full instructions, references, and scripts only when needed.

    • skills
    • context-engineering
    • genkit
  5. developers.googleblog.com

    Google Runs The Same Agent Metrics Before And After Launch

    Gemini Enterprise Agent Platform makes experiments, adaptive rubrics, trace review, simulations, online monitors, and drift alerts generally available on one evaluation engine.

    • evals
    • agent-observability
    • simulation
  6. 2 sources

    MCP 2026 Makes The Protocol Stateless

    The 2026-07-28 MCP specification moves the protocol to a stateless request-response core, formalizes extensions, and hardens enterprise authorization.

    • mcp
    • protocols
    • authorization
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