Claude Code Security 🔐, OpenAI math proofs 📐, end of coding agents 🤖

Anthropic introduced Claude Code Security in a limited research preview, enabling automated scans of codebases to surface vulnerabilities ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 

Sign Up |Advertise|View Online TLDR Together With TLDR AI 2026-02-23 Amplitude AI, your unfair advantage (Sponsor) You're probably being asked to "use AI" more, but finding real impact is still harder than it sounds.  That's why we're launching a new AI Analytics platform, designed to understand how your customers actually behave and turn that intelligence into action for your whole team.  Join us for our launch event on March 5 to learn how Agents can 10x your productivity as always-on teammates: monitoring dashboards, analyzing behavior, and triggering action so you can deliver faster wins. Register now 🚀 Headlines & Launches Microsoft develops Copilot Advisors to debate on any topic (2 minute read) Microsoft is developing Copilot Advisors for debating any topic using AI personas like legal or finance experts. Users choose two agents who argue with distinct voices, possibly with animated portraits. This feature aims to enhance individual analysis and decision-making by presenting strong cases from both sides. Claude Code Security Research Preview (8 minute read) Anthropic introduced Claude Code Security in a limited research preview, enabling automated scans of codebases to surface context-dependent vulnerabilities and propose targeted patches for human review. Anthropic Research: Measuring AI Agent Autonomy in Practice (1 minute read) Anthropic announced the release of its improved Claude LLM, focusing on enhanced safety and performance. The update includes better handling of complex queries and increased integration capabilities for businesses. This aims to provide improved utility in various professional applications. 🧠 Deep Dives & Analysis The File System Is the New Database: How I Built a Personal OS for AI Agents (21 minute read) Personal Brain OS is a file-based personal operating system that lives inside a Git repository designed to stop agents from forgetting important context information. It contains everything the AI assistant needs to recreate users' voice, brand, goals, content pipeline, research, and more. This article discusses how Personal Brain OS was built, why the architectural decisions matter, and the lessons the developer learned the hard way. The full architecture is available for anyone to clone and make their own. Why Developers Keep Choosing Claude Over Every Other AI (6 minute read) Developers keep choosing Claude Code because the alternatives keep failing them in the same way. Generating correct code is a major part of the job, but it isn't everything. Agents still need to edit files without corrupting the surrounding code, read the right files before making changes, complete multistep tasks without losing threads halfway through, know when to ask questions, and more, something no other coding agent does consistently. Claude Code stays on track more than other tools, making it the preferred choice. 🧑‍💻 Engineering & Research ↗️ Launch beautiful sites on Framer in hours — 1 year free for early-stage AI startups (Sponsor) Startups move fast, and design should too. With Framer, early-stage companies can launch a beautiful, production-ready site in hours. Now you can get one year of Framer Pro free and join thousands of founders already building on Framer. Apply to claim your free year → framer.link/TLDRAI OpenAI First Proof Submissions (4 minute read) OpenAI detailed its end-to-end proof attempts on all ten First Proof research problems, a domain-specific challenge designed to test whether AI systems can produce fully checkable mathematical arguments. The post outlined evaluation feedback from field experts, revisions to earlier correctness claims, and included a preprint with all proofs plus an appendix documenting prompt patterns used to simulate iterative human–model collaboration. The Coding Agent Is Dead (3 minute read) The current generation of coding agents isn't the future. The newest models can be powerful with nearly any tool thrown at them, with bash often being enough. Codebase organization is now the bottleneck. Amp plans to kill the Amp editor extensions for VS Code and Cursor on March 5. It will continue to work on the Amp CLI, which is flexible, light, easy to change, and can be run anywhere at anytime. AlphaEvolve Discovers New Multi-Agent Learning Algorithms (26 minute read) Using an evolutionary coding agent powered by large language models, the work automatically generated new algorithms for imperfect-information games across CFR and PSRO paradigms. The discovered VAD-CFR and SHOR-PSRO variants introduced adaptive discounting and hybrid optimistic meta-solvers, showing improved empirical convergence over strong baselines. 🎁 Miscellaneous Leveraging OpenClaw as a Web Developer (7 minute read) Web developers can integrate OpenClaw to automate repetitive tasks like scaffolding routes, generating tests, and updating documentation directly from natural‑language prompts. Developers with domain context can teach OpenClaw project‑specific patterns that improve code quality and consistency without manual intervention. ChatGPT Ads Now Hit on Your Very First Message (7 minute read) OpenAI is now testing ads in ChatGPT for Free and Go users in the US, with companies like Expedia and Qualcomm appearing after a user's first message. The beta charges $60 CPM with a $200,000 minimum investment, only including large-budget brands, and excludes paid subscribers. ⚡ Quick Links Wiz Security Flashcard: Securing AI Agents (Sponsor) Use this one-page resource as a quick reference guide to understand what AI agents are, how they operate, and where key security considerations show up. Download the security flashcard Why is Claude an Electron App? (5 minute read) Claude is an Electron app because developer familiarity and simpler maintainability across multiple platforms are worth the tradeoffs. Which web frameworks are most token-efficient for AI agents? (7 minute read) Minimal API web frameworks are far quicker and more cost-effective for agents to work with. Reinforcement Learning for LLMs (25 minute read) A look at the surprisingly simple underlying principles of reinforcement learning. Apple's upcoming AI smart glasses are starting to sound a lot more exciting (3 minute read) Apple is accelerating development of AI smart glasses featuring two integrated cameras, aiming to rival Meta Ray-Bans. Love TLDR? Tell your friends and get rewards! Share your referral link below with friends to get free TLDR swag! https://refer.tldr.tech/0b6a6dc1/2 Track your referrals here. Want to advertise in TLDR? 📰 If your company is interested in reaching an audience of AI professionals and decision makers, you may want to advertise with us. Want to work at TLDR? 💼 Apply here, create your own role or send a friend's resume to jobs@tldr.tech and get $1k if we hire them! TLDR is one of Inc.'s Best Bootstrapped businesses of 2025. If you have any comments or feedback, just respond to this email! 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