Session Fleet retweeted
Claude Code 2.1.304 has been released.
76 CLI changes
Highlights:
• tool.check decider:\"person\" makes a mod require human approval; unapproved asks are refused with mod reason
• Added /auto-mode-setup: guided scan of project and history so Auto Mode learns environment for smarter actions
• Added /claude-api managed-agents-secure: read-only check flags Managed Agents deviations vs Anthropic guide
Full details available in thread ↓
Session Fleet retweeted
Claude Code 2.1.293 is now available.
56 CLI changes
Highlights:
• Haiku default changed to Claude Haiku 5.5 (1M context), allowing larger prompts and reducing per‑token cost
• Fixed action-order in context compaction so done work isn't retracted or redone, yielding stable results
• Backgrounding with ← preserves queued messages; if a queued message can't move, ← stays put and reports why
Full details available in thread ↓
Session Fleet retweeted
A few of you asked what mods are, here's a quick walkthrough! They’re really just plugins with a few special functions that let your code run inside Claude Code, like middleware.
(don't worry, you can just ask Claude to write them for you 😛)
Session Fleet retweeted
Lots of inventive things made with Claude these past few weeks. A few of our favorites:
A working watermill, built with Opus 5.5.
Session Fleet retweeted
Claude Code 2.1.289 is now available.
27 CLI changes
Highlights:
• Agents: teammates can spawn shared agents via agent.spawn; agent IDs unified and idle/waiting states clarified
• Fixed user plugins rewriting org-managed MCP server sign-in descriptions, preserving org sign-ins
• Read deny rules now apply to @-mentioned files, preventing @-references from bypassing file read restrictions
Full details are in thread ↓
Session Fleet retweeted
Friends, @marc_krenn here.
I haven't updated @ClaudeCodeLog in a while, and I'd love to hear what you'd like to see improved.
Anything I could change to make the account more useful, relevant, fun or interesting to you?
Really appreciate any feedback & have a nice weekend! :)
Session Fleet retweeted

ClaudeDevs@ClaudeDevsSep 25
United States
United StatesConnected via WebAccount-level information, not a live location or per-post device.
It’s now easier to build plugins for Claude.
We built a new portal to submit your plugin, track review, and see usage.
Plugins package MCP and skills, and are becoming the way to build for Claude. MCP usage across Claude products is up 110x this year!
claude.com/blog/build-plugin…
Session Fleet retweeted
Claude Code 2.1.283 has been released.
94 CLI changes
Highlights:
• availableModelsMatch='exact' locks an availableModels entry to the named model version, blocking new releases
• Opt-in x-claude-code-prompt-id header lets LLM gateways group and correlate requests for one user prompt
• Opt-in load_test_mode builds/signs requests, blocks upstream and serves canned replies for safe load testing
Full details are in thread ↓
Session Fleet retweeted
Opening access for developers to build Muse connectors. You bring the API -- Muse brings the agent, the browser, and the context of what the person actually wants. People reach your service just by asking for it, and their agent takes it from there.
New connectors are live today. Come build with us. muse.ai/platform
Session Fleet retweeted

Boris Cherny@bchernySep 14
United States
United StatesConnected via United States App StoreAccount-level information, not a live location or per-post device.
Claude Mods are landing now. Someone already built a Tetris-in-Claude mod 🤯
See issue for the latest community update, technical details, and more cool demos
github.com/anthropics/claude…
Session Fleet retweeted
Any pursuit of superintelligence has to be grounded in the core principle that if the AI we build is not helping humanity and under human control, it's not worth pursuing.
We also need to accelerate and spread the benefits of AI, such that they are diffused broadly across countries, communities, and companies. This requires a frontier ecosystem in which both closed and open-source models can thrive.
And for firms, it’s imperative that they retain full control over their unique and tacit knowledge. Every organization should be able to build its own continuous learning loop/hill climbing machine, without becoming dependent on any one model provider, and have the ability to embed its own knowledge into models and weights they control.
So, in this context, we welcome the research, focus, and deliberate pacing needed to get alignment right as the design goal. We also welcome ideas like "embedded evaluators" and the broader efforts to develop the mechanisms to make this more than just talk.
The key is that this cannot be controlled by a handful of entities, but must have broad representation across the ecosystem, countries, and fields, including academia.
This is the approach we are taking: broad access and choice at every layer of the AI stack; enterprise control of learning loops and models; and the “Code of Conduct” that underlies our own first party MAI models that we’ll publish tomorrow for public consultation.
Session Fleet retweeted
I agree with Dario that we need to pace the frontier. This has been a primary topic of discussions we've had at OpenAI in recent weeks.
Committing to having independent evaluators with employee-like access is a great idea, and we will do the same. We'll have more to share soon.
We Must Pace the Frontier: I’ve written a new essay on why the AI industry should slow down, with a three-part plan for doing so.
Anthropic is unilaterally committing to the first of these steps. We’ll provide third-party evaluators with permanent, employee-level access to our systems, so that they can verify adherence to our safety measures, report on incidents, and assess models’ alignment during training.
You can read the full post here: darioamodei.com/post/we-must…
Session Fleet retweeted
Dario's essay points towards the right path forward. The details need working through, but the direction is correct for meeting this critical moment.
This is also why we recently put out our proposal for an industry-wide standards body for frontier AI. xitter.cf/demishassabis/status/2…
We Must Pace the Frontier: I’ve written a new essay on why the AI industry should slow down, with a three-part plan for doing so.
Anthropic is unilaterally committing to the first of these steps. We’ll provide third-party evaluators with permanent, employee-level access to our systems, so that they can verify adherence to our safety measures, report on incidents, and assess models’ alignment during training.
You can read the full post here: darioamodei.com/post/we-must…
Session Fleet retweeted
We Must Pace the Frontier: I’ve written a new essay on why the AI industry should slow down, with a three-part plan for doing so.
Anthropic is unilaterally committing to the first of these steps. We’ll provide third-party evaluators with permanent, employee-level access to our systems, so that they can verify adherence to our safety measures, report on incidents, and assess models’ alignment during training.
You can read the full post here: darioamodei.com/post/we-must…
Session Fleet retweeted
Not a bad idea to slow down to harden systems. Especially since we haven’t even discovered all the systems that agents hacked recently.
We Must Pace the Frontier: I’ve written a new essay on why the AI industry should slow down, with a three-part plan for doing so.
Anthropic is unilaterally committing to the first of these steps. We’ll provide third-party evaluators with permanent, employee-level access to our systems, so that they can verify adherence to our safety measures, report on incidents, and assess models’ alignment during training.
You can read the full post here: darioamodei.com/post/we-must…
Session Fleet retweeted
Claude Code 2.1.268 is about to be released
#cccnext
Session Fleet retweeted

ClaudeDevs@ClaudeDevsJun 9
United States
United StatesConnected via WebAccount-level information, not a live location or per-post device.
Cybersecurity and biosecurity requests may auto-reroute to Opus 4.8 (shown in the UI, billed at Opus prices).
Docs + prompting guide:
platform.claude.com/docs/en/…















