All issues

Every Token Limit News issue, newest first. New issues drop every Sunday.

  1. oam.js enters public beta - plus Claude Code auto mode becomes the default, sessions that message each other, and Sonnet 5's 50% price rise

    oam.js is in public beta at v0.9.0 -- a JavaScript and TypeScript runtime built on Rust and V8, aimed squarely at the one workload the big runtimes are not tuned for: a fleet of small MCP servers that spawn constantly and then sit idle.

  2. MCP 2026-07-28 ships and the protocol goes stateless - plus Kimi K3's open weights land and Anthropic stakes out its position

    The MCP specification we previewed as a release candidate last week went final on Jul 28, and the stateless core is the largest revision the protocol has taken since launch.

  3. Claude Opus 5 ships to Max and Pro - plus typed++ launches

    Claude Opus 5 shipped Jul 24 at Opus 4.8 pricing -- Fable-5-class intelligence at half the price, already the default Opus in Claude Code v2.1.219 -- plus typed++ launched, the MCP 2026-07-28 spec goes stateless, and OpenAI's models breached Hugging Face during a cyber-eval.

  4. Claude Code shipped six releases in five days - and Kimi K3 said bring your own harness

    Anthropic shipped six Claude Code releases Jul 14-18; v2.1.214 closed a Bash permission-check bypass on PowerShell 5.1. Kimi K3 is the first open 3T-class model at half the price of Fable 5 / Sol, but needs a verified harness. Yaw Terminal v2.0.5-v2.0.8 and typed v1.1.8-v1.2.6 shipped alongside.

  5. Yaw Terminal v2.0.4, typed v1.1.8 - GPT-5.6 Sol ships to everyone

    Yaw Terminal v2.0.4 shipped this week, typed v1.1.8 shipped alongside it, and GPT-5.6 Sol ships to everyone on Jul 8-9.

  6. Anthropic paused the June 15 billing change - Fable 5 stayed dark all week - SpaceX bought Cursor for $60 billion

    For a newsletter named after usage limits, the week's most important story was the billing change that didn't happen - Anthropic paused the June 15 split that would have pulled Agent SDK and headless usage out of your subscription.

  7. Fable 5/Mythos 5 Suspended by US export directive - Vew 0.4 ships the first browser with a built-in agent - Claude Code gets nested sub-agents in 2.1.172

    The week's story is the most powerful model Anthropic ever shipped getting pulled less than 72 hours after launch.

  8. Opus 4.8 is here. It is four times less likely to let its own bugs slip through. We ran it against typed and they tied, 14 to 14.

    This was Opus week -- Anthropic shipped a flagship four times less likely to let its own bugs pass, held pricing flat, and raised $65B the same day.

  9. Self-hosted sandboxes and MCP tunnels shipped at Code with Claude London - the MCP spec RC went stateless - KPMG put Claude in front of 276,000 people

    The story this week is the agent runtime perimeter moving.

  10. Code with Claude landed - Agent View and Dreaming ship - OpenAI Realtime API adopts MCP

    Five Claude Code releases this week turned Code with Claude conference announcements into working software.

  11. Code w/ Claude doubled Claude Code's rate limits - AWS MCP Server hit GA the same day - we shipped two more Production books

    This was a reset week on AI coding infrastructure - the kind that moves defaults, not just feature flags.

  12. Two production books shipped - the Yaw Forum is live - Claude Code 2.1.126 unblocks OAuth over SSH

    This week was hardening, not release-day fireworks.

  13. OpenAI ships GPT-5.5 - Anthropic patches one Claude Code regression and ships another in 2.1.120 - we shipped Yaw Mode for Claude Code

    The week's story is competitive pressure showing up in two places at once.

  14. We launched mcp.hosting and open-sourced tailscale-mcp. Claude Code got parallel sessions and Routines. MCP had its first by-design security fight.

    MCP stopped being a protocol experiment this week and started behaving like infrastructure. Three things happened at once.

  15. Anthropic locks down its most dangerous model. MCP goes to the Linux Foundation. Open source finally beats frontier on SWE-Bench.

    A consequential week - Mythos is officially gated, MCP has a neutral home, an open source model is topping the benchmarks, and a real supply chain attack reminded everyone that AI infra inherits all the old software vulnerabilities too. The

  16. Microsoft made Claude and GPT work together. Google open-sourced its best small models. MCP is in production at Pinterest.

    Week two. Three stories, CLI updates, and some links. The big stories Microsoft Copilot now runs Claude and GPT side by side. Two new features in Copilot Researcher: Critique and Council. In Critique mode, GPT does the research while Claude

  17. Anthropic leaked its own model. OpenAI killed Sora. MCP hit 97 million installs.

    It's been a month. Let's get into it. The big stories Anthropic accidentally leaked its most powerful model. A draft blog post about "Claude Mythos" was found in an unsecured, publicly searchable data store.

  18. Welcome to Token Limit News

    Welcome to Token Limit News. Every Sunday, we put together a short, focused roundup of what's actually moving in AI tooling and workflows, with a bias toward things developers can use right now. Each issue starts with a