Claude in Chrome

claude.com
claude-in-chrome

Browser AI faces unique security risks, like prompt injection attacks, where malicious actors might try to trick Claude into unintended actions, such as sharing your bank information or deleting important files. While we’ve implemented protections, they aren’t foolproof. Attack vectors … Read more

Show HN: Claude Code recipes for knowledge workers

github.com
show-hn:-claude-code-recipes-for-knowledge-workers

Your Complete Guide to AI-Powered Productivity Version 1.0 — December 2025 This collection contains 100 practical recipes for using Claude Code to automate, accelerate, and enhance your professional work. Each recipe provides step-by-step instructions, ready-to-use prompts, and real-world examples that … Read more

Claude 4.5 Opus’ Soul Document

simonwillison.net

Claude 4.5 Opus’ Soul Document. Richard Weiss managed to get Claude 4.5 Opus to spit out this 14,000 token document which Claude called the “Soul overview”. Richard says: While extracting Claude 4.5 Opus’ system message on its release date, as … Read more

Claude Advanced Tool Use

anthropic.com
claude-advanced-tool-use

The future of AI agents is one where models work seamlessly across hundreds or thousands of tools. An IDE assistant that integrates git operations, file manipulation, package managers, testing frameworks, and deployment pipelines. An operations coordinator that connects Slack, GitHub, … Read more

Claude Opus 4.5

anthropic.com
claude-opus-4.5

Our newest model, Claude Opus 4.5, is available today. It’s intelligent, efficient, and the best model in the world for coding, agents, and computer use. It’s also meaningfully better at everyday tasks like deep research and working with slides and … Read more

How I use every Claude Code feature

blog.sshh.io
how-i-use-every-claude-code-feature

I use Claude Code. A lot. As a hobbyist, I run it in a VM several times a week on side projects, often with –dangerously-skip-permissions to vibe code whatever idea is on my mind. Professionally, part of my team builds … Read more

Claude Code Can Debug Low-Level Cryptography

words.filippo.io
claude-code-can-debug-low-level-cryptography

Over the past few days I wrote a new Go implementation of ML-DSA, a post-quantum signature algorithm specified by NIST last summer. I livecoded it all over four days, finishing it on Thursday evening. Except… Verify was always rejecting valid … Read more

Claude for Excel

claude.com
claude-for-excel

Claude for Excel is currently in beta as a research preview, so it’s best for model analysis, assumption updates, error debugging, template population, formula explanations, multi-tab navigation. Claude doesn’t have advanced Excel capabilities including pivot tables, conditional formatting, data validation, … Read more