Rickard Nilsson

Developer @ninetech

[Boris Cherny @bcherny]

Fable 5 is the biggest step up I’ve felt in our models since Opus 4.5 back in November. After 4.5 came out I uninstalled my IDE when I realized that I’d been doing 100% of my coding in a terminal for a few weeks. With Fable, it’s felt like Claude has stepped up from being a coding agent to a thought and design partner in building the product. Fable has judgement, taste, and dimensionality in a way that previous models didn’t, leading me to trust it more with the most complex work.

I think the first time I had this realization was when I asked Fable to debug something. It is the first model I have used that was so methodical and precise, taking measurements and adding logs then verifying that it truly fixed the issue before declaring victory.

There’s nothing in claude code’s prompting telling the model to do that, it’s just part of its personality. It really has this “big model smell” that I haven’t felt before.

[Claude @claudeai]

Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use.

Its capabilities exceed those of any model we’ve ever made generally available.

[ClaudeDevs @ClaudeDevs]

Claude Code's first demo got two Slack reactions.

One year after GA, @bcherny and @_catwu look back: verification best practices, why we built auto mode, routines and loops, and what's next.

https://t.co/yEa3cmCrg4

[Boris Cherny @bcherny]

Seeing a number of benchmarks showing Opus is the best model for long-running work.

Five tips for running Opus autonomously for hours/days:

1. Use auto mode for permissions, so Claude doesn’t ask for approval
2. Use dynamic workflows, to have Claude orchestrate hundreds/thousands of agents to get a task done
3. Use /goal or /loop, to nudge Claude to keep going until it’s done
4. Use Claude Code in the cloud, so you can close your laptop (easiest way is the desktop or mobile app)
5. Make sure Claude has a way to self-verify its work end to end: Claude in Chrome browser extension for web, iOS/Android sim MCP for mobile, a way to start the full web server or service for backend work

[Thariq @trq212]

https://t.co/R6exTuF7P8

[Claude @claudeai]

Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the ability to work independently for longer than its predecessors.

Available today at the same price.

[self.dll @seelffff]

karpathy's CLAUDE.md hit #1 on github trending.
220,000 stars. most devs still haven't read it.

it's 65 lines.
it took AI coding accuracy from 65% to 94%.

the 4 rules inside:

→ think before coding
state your assumptions. ask when unsure. never guess.

→ simplicity first
write the minimum code that solves the problem.
no abstractions nobody asked for.

→ surgical changes
don't touch code unrelated to the request.
every changed line must trace back to what was asked.

→ goal-driven execution
turn vague instructions into verifiable success criteria
before writing a single line.

that's it.
65 lines. 4 rules. 94% accuracy.

save this before everyone else does.

[Boris Cherny @bcherny]

In the next version of Claude Code: run /usage to see a breakdown of which Skills, Agents, MCPs, and Plugins are using your tokens

CLI today, coming to Desktop next

[Rickard Nilsson @rickardn]

@trq212 @blacktop__ Having the same issue. I’m on 2.1.139

[Rickard Nilsson @rickardn]

@trq212 I only get a print out when doing `claude agents`. What am I missing?

> claude agents
6 active agents

Built-in agents:
claude · inherit
claude-code-guide · haiku
Explore · haiku
general-purpose · inherit
Plan · inherit
statusline-setup · sonnet

[Boris Cherny @bcherny]

The best way to level up from 1 agent => many agents. No more cycling between terminal tabs

[Claude @claudeai]

New in Claude Code: agent view.

One list of all your sessions, available today as a research preview.

[Thariq @trq212]

https://t.co/MXt5XS4xBX

[Claude @claudeai]

Claude for Excel, PowerPoint, and Word are now generally available, and Claude for Outlook is in public beta.

As Claude moves between your Microsoft apps, it carries the full context of your conversation.

[Claude @claudeai]

Effective today, we are:

1) Doubling Claude Code’s 5-hour rate limits for Pro, Max, and Team plans;

2) Removing the peak hours limit reduction on Claude Code for Pro and Max plans; and

3) Substantially raising our API rate limits for Opus models.

[ClaudeDevs @ClaudeDevs]

Code with Claude is happening now!

▪︎ 9:00AM - Keynote
▪︎ 10:30AM - What's new in Claude Code
▪︎ 11:15AM - Building on Claude at GitHub scale
▪︎ 12:00PM - Get to production faster with Managed Agents

All times PT. https://t.co/O4oygkSr2G

[Vivek Galatage @vivekgalatage]

An awesome regex visualization tool

https://t.co/zrGa64iMHJ

[ClaudeDevs @ClaudeDevs]

To enable: install the Claude mobile app → /remote-control to pair the mobile app → /config → enable "Push when Claude decides".

Read more in the docs https://t.co/WyznOfzogg