Best of Anthropic — October 2025

  1. 1
    Article
    Avatar of simonwillisonSimon Willison·27w

    Claude Skills are awesome, maybe a bigger deal than MCP

    Anthropic introduced Claude Skills, a new pattern for extending LLM capabilities using Markdown files with instructions, scripts, and resources. Skills are token-efficient (loading only when needed), depend on code execution environments, and are simpler to create than MCP implementations. The system enables general computer automation beyond just coding tasks, with skills shareable as single files or folders. Skills work with other models too, potentially sparking wider adoption than the Model Context Protocol.

  2. 2
    Article
    Avatar of wheresyouredWhere's Your Ed At·27w

    This Is How Much Anthropic and Cursor Spend On Amazon Web Services

    Anthropic spent $2.66 billion on AWS through September 2025, exceeding its estimated $2.55 billion revenue for the same period. The company's AWS costs increased 174% from January to September 2025, consuming 88-227% of monthly revenue depending on the period. Cursor, Anthropic's largest customer, saw its AWS bills double from $6.2M to $12.6M in June 2025 after Anthropic introduced Priority Service Tiers that significantly increased costs for prompt caching. The analysis reveals that AI model providers' operational costs scale linearly with revenue, suggesting current pricing models are unsustainable without dramatic price increases that could drive away customers.

  3. 3
    Article
    Avatar of jhayerJ-HAYER - Builders gonna build·26w

    Learn Claude's new Skills

    Claude introduces Agent Skills, a new capability that allows developers to package domain expertise into reusable modules instead of managing complex monolithic prompts. Skills are composable, portable across platforms, loaded on-demand to save context window space, and can include executable code for precise operations. Companies like Box are already using Skills to automate tasks like transforming unstructured files into branded presentations.

  4. 4
    Article
    Avatar of infoworldInfoWorld·27w

    Anthropic extends Claude Code to browsers

    Anthropic launched Claude Code on the web as a beta research preview for Pro and Max users, allowing developers to use the AI coding assistant directly from browsers or smartphones without a terminal. The service runs coding tasks on Anthropic-managed cloud infrastructure in isolated sandboxes, supports parallel task execution across repositories, handles Git interactions via secure proxy, and automatically creates pull requests. It's particularly effective for repository mapping, routine tasks, bug fixes, and back-end changes with test-driven development.

  5. 5
    Article
    Avatar of dailydoseofdsDaily Dose of Data Science | Avi Chawla | Substack·26w

    Another MCP Moment by Anthropic?

    Anthropic released Claude Skills, a feature designed to solve agent memory persistence by acting as standard operating procedures for AI agents. The announcement includes comparisons to Model Context Protocol (MCP), projects, and subagents, with practical examples of building custom skills. The piece also promotes a comprehensive MCP crash course series covering fundamentals, architecture, integration with frameworks like LangGraph and LlamaIndex, and real-world implementations.

See all Anthropic archives