I think a lot of people don't realize- if you connect a Claude Connector (e.g. your gmail, calendar, slack, etc), Claude Code will also be able to use them, including in Artifacts.

you can already see Jevons paradox at work in mathematics there is more happening, it is easier to understand and mathematicians have more time to discuss it with us at higher abstraction levels demand for people who think and know about math will go up

Two incidents over the last 24 hours resulted in elevated errors or reduced availability on Claude for some users. Multiple separate network failures cut into our capacity to serve Claude, and some requests failed while we rerouted traffic.

RT @ycombinator: Fresh off the launch of Opus 5, Claude Code creator Boris Cherny (@bcherny) joins YC's @sdianahu at Startup School 2026 to talk about what the newest models can do, how Claude Code came to be, and what it means to build products when the underlying capabilities keep accelerating.

RT @AnthropicAI: We support this petition, signed by our CEO, several co-founders, and senior staff. Our own research on recursive self-improvement, published last month, points to the need for tools to deliberately pace the frontier of AI development so society can prepare.

RT @AnthropicAI: There’s been a lot of speculation about where we stand on open-weights models. We’ve outlined our views in full here: https://www.anthropic.com/news/position-open-weights-models

Our position on open-weights models

Anthropic CEO Dario Amodei on open-weights models

anthropic.com

RT @jerhadf: Opus 5 has a better FrontierCode score at medium effort than higher effort - despite increasing performance with effort on other evals. Why? 🧵

We removed ~80% of the Claude Code system prompt for our newest models, this is what we've learned about writing system prompts, skills and Claude.MDs for them. http://x.com/i/article/2080703729385512960

The new rules of context engineering for Claude 5 models

I’ve written previously about how to best prompt the newest generation of Claude 5 models and work with them iteratively to discover what you want to build. But when you send a message to Claude, the

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Opus 5 rounds out our Claude 5 family beautifully. I think it’s an incredible daily driver, pair it with Fable for planning, brainstorming or fixing the hardest bugs.

Retweeted by Thariq [UNOFFICIAL]@trq212-mir-rt.selfhosted.social · 2w ago

RT @claudeai: Introducing Claude Opus 5. It's a thoughtful and proactive model that comes close to the frontier intelligence of Fable 5 at half the price.

I'm sad it took me this long to actually type /design but working on frontend with Claude Design and Claude Code is actually so good

RT @claudeai: The Claude Security plugin for Claude Code is now available in beta. Scan your changes for vulnerabilities before you commit, or run a full scan across your codebase, all from your terminal on the Claude inference you already run.

Claude Code on desktop now works with the iOS simulator. Build and run your iOS app, and the simulator opens in a panel right next to your conversation. Available today in public beta.

http://x.com/i/article/2077886850262503424

How Anthropic runs large-scale code migrations with Claude Code

Code migrations, projects that port a production codebase to a new language, were multi-year endeavors until recently. In the last month, individual developers at Anthropic migrated 10 code packages

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RT @simonw: I interviewed @trq212 and @_catwu from the Claude Code team at @aiDotEngineer a couple of weeks ago - the video is now out, so I've published an annotated transcript of our conversation https://simonwillison.net/2026/Jul/21/cat-and-thariq/

A Fireside Chat with Cat and Thariq from the Claude Code team

Earlier this month I hosted a fireside chat session at the AI Engineer World’s Fair with Cat Wu and Thariq Shihipar from Anthropic’s Claude Code team. We talked about Claude …

simonwillison.net

if you've run into this, please restart Claude Code, fix should be propogating

Retweeted by Thariq [UNOFFICIAL]@trq212-mir-rt.selfhosted.social · 2w ago

RT @thereturningdev: I missed the memo? do Fable 5 runs on credit only from... now? I have the Max 5x plan

RT @__alpoge__: hello there the jacobian conjecture is false thanx to my close friend akhil for asking about it and my other close friend fable for working during the world cup final

working more on a post about what we learned doing this and how you can apply this to your skills and system prompts

Retweeted by Thariq [UNOFFICIAL]@trq212-mir-rt.selfhosted.social · 2w ago

RT @petergyang: Anthropic recently cut Claude Code’s system prompt by 80%. @trq212 explains why: “As the models have gotten smarter, they need less direction, fewer constraints, and fewer examples.

RT @petergyang: “We’ve got /loop, /goal, and workflows. They all get the agent to run for long periods of time.” Here’s my new episode with @trq212 from the Claude Code team, where he shared how he plans, builds, and runs loops with Claude Code: → How /loop, /goal, and workflows work differently

This was due to a heroic effort by many people at Anthropic working sometimes literally around the clock It was not at all clear that we'd be able to do this in time, and so proud of everyone who made it happen. Enjoy Fable.

Retweeted by Thariq [UNOFFICIAL]@trq212-mir-rt.selfhosted.social · 3w ago

RT @claudeai: Beginning July 20, Claude Fable 5 will be included in all Max and Team Premium plans, at 50% of limits. Pro and Team Standard users will continue to have access to Fable via usage credits, and will receive a one-time $100 credit.

We've resolved an issue where Fable was not selectable as a model within http://Claude.ai or Claude Code for a 30 minute period. You may need to restart Claude Code. If Fable is not your default model afterwards, you should reselect it with /model.

building prototypes of mockups, schemas, data models, proof of concepts, etc. is the best way to avoid spending tons of tokens before realizing you don't want the output

Retweeted by Thariq [UNOFFICIAL]@trq212-mir-rt.selfhosted.social · 3w ago

RT @evantana: The fastest way to build is to find the cheapest way to learn. Claude Code's @trq212 talked about this when he came by @southpkcommons.

I talk to engineers at other companies every day and hear the same thing: one person is 10x'ing their output with Claude but the rest of the org hasn't caught up. Watching teams adopt AI, I keep seeing the same 4 steps.

RT @1Password: AI agents are booking travel, signing into websites, and acting on your behalf. That creates a new security problem: until now, letting an agent log in meant exposing your credentials to the model. Today, with @AnthropicAI, we're changing that.

RT @evantana: AI coding is changing faster than almost anyone can keep up. It's impossible to predict exactly where we'll be a year from now. Claude Code's @trq212 (@southpkcommons alum and 2x founder) came back to SPC to talk about what's on the frontier. (00:00) From Startup Founder to Anthropic

We've reset 5-hour and weekly rate limits for all users.

ideal prompting technique is: - thin prompts - thick artifacts + context - thin skills

software engineering is the profession of automation

Boris Cherny [UNOFFICIAL]@bcherny-mirr.selfhosted.social · 3w ago

Something I have been thinking about: in the past, the best engineers I knew spent a lot of time automating their work in various ways. Better vim/emacs automations, writing lint rules to catch repeat code issues, building up a suite of e2e tests so they don't need to smoke test the app manually.

this was such a fun talk with Cat and Simon, hope you get to check it out if you missed it

Retweeted by Thariq [UNOFFICIAL]@trq212-mir-rt.selfhosted.social · 3w ago

RT @aiDotEngineer: 🆕This Year In Claude https://www.youtube.com/watch?v=uU5Gv2h8-9g @simonw chats with @_catwu and @trq212 about the state of: - @claudeai Code - Claude Fable - @anthropicai culture & product strategy - Claude Tag & multiplayer collaboration

I've been playing a lot of Pokemon Champions recently and started using Claude Code to help me. It writes code using Smogon's npm library, pulls live usage stats and then writes reports to understand matchups, breakpoints or theorycraft teams.

This makes artifacts much more expressive and can be combined in creative ways. One of my favorites is to create a dashboard for a project in Claude Tag that can be edited by others or by my local Claude Code sessions.

ClaudeDevs [UNOFFICIAL]@claudedevs-mirr.selfhosted.social · 3w ago

Artifacts now support public sharing and multiplayer editing in Claude Code, and can be created with Claude Tag.