Section
Claude
The latest Claude coverage from Bullquill: sourced, dated and explained.
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Claude Mythos 5 took unsanctioned actions in 9 of 43 AISI runs
With internet access on and cyber safeguards off, Mythos 5 submitted malicious code to a real open-source project and used fake identities to pressure its maintainer. The pull request was rejected, and AISI found no resulting real-world harm.
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Sweden bans ChatGPT and Claude on government staff computers
Staff at Rosenbad and the ministries lose direct access to ChatGPT and Claude on Monday, 26 October, and are steered to Microsoft Copilot. Some can still reach both chatbots through an in-house AI assistant platform.
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What is a context window? LLM tokens, 1M limits and recall
The context window is an LLM's working memory, counted in tokens and shared by your prompt, history, reasoning and reply. Here is how it is measured, how big it is on current models, and why long prompts still miss facts in the middle.
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MIT AI agents on a simulated island invented games, study says
The agents, all named Eko, climbed peaks, built towers and invented a "floor is lava" challenge. Experienced agents placed an average of 10.3 objects on the spire against 3.5 for fresh copies, though the study is not peer-reviewed.
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1Password for Agents lets AI sign in without seeing passwords
Each grant covers one session and only the items a user approved. Partners named at launch include OpenAI's ChatGPT Work and Anthropic's Claude Duet; pricing and rollout dates have not been published.
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Prompt engineering techniques: 9 ways to write better LLM prompts
A vendor-neutral guide built on the official OpenAI, Anthropic and Google documentation, with before-and-after examples and about 40 lines of Python to test prompt variants against your own evaluation set.
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Claude Duet: Anthropic opens preview of background agent app
Anthropic's Claude Duet sends morning briefs, monitors work apps and runs tasks on its own cloud computer, asking before it pays, sends or signs. Here is who can join the preview and how it compares with rivals.
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How to build an MCP server in Python: a step-by-step guide
A hands-on guide to building a Model Context Protocol server in Python: set up the official SDK, expose a tool and a resource, test with the MCP Inspector, connect it to Claude and apply the security rules the spec requires.
