Anthropic has opened a public Claude Marketplace consolidating plugins, connectors, agents and consulting services in one hub. The listing already includes more than 2,000 integrations from companies such as Atlassian, Google, Microsoft, Notion and Salesforce, plus Claude-powered products from partners like CrowdStrike, Cursor, Harvey, Legora, Lovable and Snowflake, alongside integration support from Accenture, Boston Consulting Group and Deloitte. Developers can build connectors using Model Context Protocol and Agent Skills, and companies can apply to list their Claude-based products.
Three computer scientists connected leading AI language models to a Toyota Corolla's steering, throttle and brakes using a comma four device and GPS telemetry, then had each model attempt a short parking-lot driving course with no human input beyond a foot hovering over the brake. Only OpenAI's GPT-6 Astra completed the full course, doing so on its second try in about five minutes over a distance of under 500 feet, while most other attempts failed to get past the first corner.
Drawgent is a new open-source utility that connects existing installations of Claude Code, Codex or opencode agents to a live Excalidraw whiteboard. Users can request diagrams via a chat panel or annotate a drawing with an 'AGENT:' note, and the connected agent reads the canvas, makes edits, verifies the result, and marks the task done. Setup runs a one-time check per agent, installs ACP adapters and, if needed, a headless Chrome renderer, storing configuration locally.
A developer created a set of Claude Code skills that convert a single chess game into a readable post-mortem, combining Stockfish engine analysis with the player's own recorded thoughts during the match. In a demonstration, Claude transcribed a French audio recording of the player's in-game reasoning via whisper.cpp, aligned it with move timestamps from the PGN, and produced a narrated video explaining specific decisions, such as bishop placement choices, verified against engine lines. All underlying files—transcript, engine analysis, annotated PGN, and storyboard—are shared in the project's example folder.
Benchmarking site Arena analyzed high-reasoning Text Arena responses from August and September 2026 and found Anthropic's Claude Opus 5.5 uses far fewer em dashes and semicolons than Opus 5, along with shorter, simpler sentences. Em dash usage fell from 15.2 to 0.8 per 1,000 words, and average sentence length dropped from 12.14 to 10.03 words, though overall answers grew longer, from 453 to 481 words on average.
A Haskell programmer has published an essay addressing anxieties about AI-driven burnout, job insecurity from LLM-assisted coding, and declining code quality. The author, writing entirely without AI assistance, argues that much of programming's satisfaction comes from the act of expressing thought in code itself, and warns that relying on LLMs to generate code risks eroding that enjoyment.
The US Court of Appeals for the DC Circuit ruled 2-1 that the Trump administration acted within its authority under the Supply Chain Security Act when it barred federal agencies and defense contractors from using Anthropic's products. The panel found the government could blacklist Anthropic for refusing to enable certain AI capabilities even absent malicious intent, denying Anthropic's petition for review. Anthropic said it disagrees with the ruling and may seek en banc review or petition the Supreme Court.
Science writer and former theoretical physicist Matt von Hippel issued a public challenge for an AI model to tackle a computationally demanding problem from his former field of theoretical physics. Within about a month, Anthropic's Claude was shown to complete the task, calculating a nine-loop result that von Hippel says was hard not because the method was unknown but because the computation itself was formidable.
A federal appeals court in Washington DC declined to overturn one of two Pentagon designations that flagged Anthropic as a national-security supply-chain risk, letting that label stand indefinitely. The ruling leaves in place restrictions ordering removal of Anthropic's Claude models from military and other federal systems, while a separate designation was already struck down by a San Francisco judge earlier this year. Anthropic says it is weighing further appeals, including to a larger DC Circuit panel or the Supreme Court.
Jevmem is a new npm package that captures decisions, constraints, bugs and todos discussed during AI coding sessions and writes them to a local JEVMEM.md file. Changed decisions are marked as superseded rather than erased, and the relevant entries are re-fed into the assistant's context in later sessions. It integrates automatically with Claude Code via hooks, while Cursor and Codex require agent-initiated calls through MCP or rule files.
A federal appeals court in Washington ruled 2-1 to uphold the Defense Department's designation of Anthropic as a national security supply chain risk, blocking the Pentagon and its contractors from using Claude AI models. The ruling addresses one of two separate designations the DOD used to justify the ban; a San Francisco court had already struck down the other designation last month. Anthropic said it disagrees with the decision and is considering further legal options.
A hobbyist scientist reorganized a cluttered home lab, building new shelving and desks to sort equipment by function. While cleaning, they compiled a detailed inventory of tools, probes, and chemical samples, intending to feed the list to Claude so they could locate items quickly and plan experiments around what they already own rather than buying new supplies each time.
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