Anthropic just made the skills behind Claude's Word, Excel, PowerPoint and PDF files fully open source. These are the exact skills Claude uses to: - Write and edit Word documents - Build Excel sheets with real formulas - Make PowerPoint decks - Read, fill and create PDFs Until last week, you could read them but not reuse them. Now you can drop them into your own agent, your own app or your own product, even commercially. Every agent that has to touch a real office file just got a free head start.

If you send email from your own domain, some of it stopped arriving on Nov 5. Outlook, Hotmail, Live and MSN started quietly rejecting mail from domains with no DMARC record. Small senders too. Microsoft never announced it. Only some messages bounce, so you'd never notice. Invoices, replies and confirmations just never show up. Check yours in 5 seconds: dig +short TXT _dmarc.yourdomain.com No output means you're affected. The fix is one DNS record: Name: _dmarc Value: v=DMARC1; p=none It changes nothing about how Gmail or anyone else treats your mail.

Mira Murati says today's AI models are deaf and blind while they think. The next ones never stop listening, and answer in 20-millisecond chunks. IS THE CHAT WINDOW ABOUT TO FEEL LIKE A FAX MACHINE?

Fable 5.5 made a 66s animated short film with ZERO image models. Every frame & every sound is Python it wrote itself, in one HTML file after 2h40m of autonomous work. IT EVEN ADMITTED IT'S NOT GHIBLI LEVEL. HOW LONG UNTIL IT IS?

Someone told DeepSeek V4.1 Flash to build an exploit that escapes Chrome's V8 sandbox. 12 hours later, he says it had a multi-stage memory corruption. A FLASH MODEL IS NOW DOING THE WORK OF AN ELITE SECURITY RESEARCHER.

HeyGen's HyperFrames can now rebuild any video as an editable project, so Claude can recreate a clip layer by layer and check it against the original frame by frame. It works on motion graphics, talking heads, live action, and AI-generated footage, and the result stays editable instead of being a flat copy. Reverse is a HyperFrames Pro feature, and the skill says to use it only on videos you have the right to use. Repo:

The web scraper your AI agent has been missing. 99K stars. Scrapling covers the whole job: → Fast requests, stealth browsers and JavaScript rendering → Adaptive element tracking when a site's layout changes → Crawlers with proxy rotation, retries and pause/resume → Clean Markdown output → An MCP server and agent skill so Claude can drive it Free, BSD license. Respect each site's terms.

Meta open-sourced Astryx, a design system built for people and the AI agents working with them. → Fully customizable → Built on React 19 and StyleX → Docs, Storybook and a live sandbox → MIT license, in beta Give your coding agent a real design system instead of letting it invent a new one every time.

Type one username. See every site where it exists. Sherlock checks 400+ social networks for any username. 100K stars on GitHub, free. Run it on your own handle first. Old accounts you forgot about are how people get impersonated. pipx install sherlock-project

Jane Street just put an AI skill on GitHub. It's not a trading bot. It's a strict Socratic tutor: → Starts with a diagnostic of what you already know → Builds a skill map with levels from 0 to 5 → Asks one question at a time instead of handing you answers → Brings old material back with spaced review → Ends with a final assessment Copy it into your agent's skills folder and say "teach me [anything]". Works in a normal chatbot too: paste the SKILL.md.

Under 8 weeks left in the year. If you hold crypto at a loss, run this before December 31. "Act as my crypto tax prep assistant. Here are my transaction exports from [exchanges and wallets]. 1. Rebuild my cost basis for every coin I still hold 2. Show unrealized gains and losses per coin, in my local currency 3. List the positions I could sell at a loss to offset this year's gains, and how much each would offset 4. Check whether wash-sale or similar rules apply to crypto where I live, and what that means if I buy back 5. Flag missing transactions, transfers between my own wallets, and anything counted twice 6. Give me a CSV my accountant can use" Not tax advice. Rules differ by country, so check with an accountant before you sell.

Kurzgesagt-style explainers take a whole team of writers, animators and voice actors. Claude gets surprisingly close with one prompt. "You are my animation studio. Make a 90-second animated explainer about [topic] in code (HTML, SVG and GSAP). 1. Research it and write a script a 12-year-old could follow. Show me before you build anything 2. Storyboard 12 scenes: flat vector style, bright colors, cute rounded characters 3. Animate with smooth camera moves between scenes. Nothing stays still for more than 2 seconds 4. Add text callouts for every number, plus a narration track 5. Render to 1080p MP4 and check every frame for overlaps or cut-off text Create original characters and art. Don't copy any channel's characters or scenes."

Your competitor's tracking setup is public. Every visitor's browser downloads it. Ex-Googler @googlewaqas showed how to read it by hand. Here's the Claude version: "Analyze [ using only public information: 1. Find their Google Tag Manager ID in the page source and read their public GTM container 2. List every conversion they track and the event names (demo booked, trial started, and so on) 3. Note any conversion values in the file. That's what each step is worth to them 4. List their analytics tools, ad pixels and tech stack 5. Check how their pricing page changed over time on the Wayback Machine 6. Lay out their funnel in order and tell me where we can outbid or out-position them" Their funnel and their numbers, from one file they can't hide.

A game dev built a tool for their own game, then released it free for everyone. Pixel Art Lighter generates and edits normal maps and light masks, so your 2D sprites react to light and still stay pixel perfect. Run it in the browser or download it from the Moonfell site.

Someone built an infinite Backrooms game that builds itself while you play. Opus 5.5 runs the "sentient AI" inside it, creating new rooms, characters and entities forever. Even the creator doesn't know what's in there. → Plays in your browser → Multiplayer with proximity chat

One person. 24 hours. A full original game. The stack: → Opus 5.5 for the code → Flux 3 Max and GPT Image for the art → Tripo for 3D models → Blender and Three.js The creator posted the full workflow and the prompt in the thread. Anyone can make games now.