Anthropic’s Claude Code release cadence hasn’t slowed down, and this week it sped up further: v2.1.224 shipped on August 7, followed just 21 hours later by v2.1.225. Together, the two releases add three features teams running multi-agent or self-hosted Claude Code deployments have been asking for — self-hosted runners, cross-session agent messaging, and gateway-level spend controls — plus a batch of fixes to Remote Control, MCP OAuth, and auto mode.

Given how tightly clustered these two releases are, and consistent with how the site has covered prior rapid point-release pairs from Anthropic, we’re treating them as one combined roundup rather than splitting hairs between two separate stories.

v2.1.224: Self-Hosted Runners and Cross-Session Messaging

The headline feature in v2.1.224 is the new claude self-hosted-runner command, available on Team and Enterprise plans. It lets Claude Code web, mobile, and desktop sessions run on your own machines or containers instead of Anthropic’s managed infrastructure — a meaningful option for teams with data residency requirements or existing compute they’d rather use than pay for redundant cloud capacity.

Alongside self-hosted runners, this release adds genuine cross-session agent messaging: two new primitives, SendMessage and ListAgents, let independent Claude Code sessions discover and message each other across machines. ListAgents surfaces which sessions are reachable; SendMessage lets one session pass a summary, an update, or a coordination signal to another — useful for anyone orchestrating multiple agents working on related tasks without a shared parent process. Notably, this cross-machine messaging currently works on macOS and Linux, including WSL2, but not on native Windows.

The release also removed the previous 200-subagent-per-session spawn cap, which will matter to anyone running large fan-out workflows that were bumping into that ceiling. And on the security side, v2.1.224 added sandbox credential-masking with JWT-aware, AWS SigV4 re-signing — a detail worth knowing about if your Claude Code sessions touch AWS-signed requests inside a sandboxed environment.

Two new settings ship alongside cross-session messaging worth knowing about: crossSessionInbound and dialogExpiry. Messages sent to a session running with bypassed permissions get held for explicit approval before delivery; messages to sessions running under normal permission settings auto-deliver.

v2.1.225: Gateway Spend Limits and Workspace Trust

Twenty-one hours later, v2.1.225 landed with a feature aimed squarely at organizations running Claude Code through a gateway: gateway spend-limit support in usage warnings. When a spend cap is hit, the warning message now names the specific cap, states when it resets, and surfaces whatever custom operator message an admin configured — a small but meaningful upgrade from a generic “you’ve hit a limit” notice, especially for larger teams trying to manage AI spend across many users.

The release also added a workspace trust prompt for Claude Code agents launched in untrusted directories, bringing agent-launch behavior in line with how the standalone claude command already handles unfamiliar workspaces. If you’re spinning up agents in directories you haven’t explicitly trusted, expect a confirmation step now.

Beyond those two headline items, v2.1.225 shipped a long list of fixes:

  • Fixed a transient 401 error where a long-lived CLAUDE_CODE_OAUTH_TOKEN got replaced by a stored login’s short-lived token, breaking headless sessions until restart
  • Fixed MCP OAuth servers on macOS intermittently failing with a burst of 401s after a keychain read timeout
  • Fixed auto mode incorrectly counting a safety-filter refusal toward its consecutive-block limit — the action is still denied, but the model now moves on instead of retrying into the same wall
  • Fixed cross-session messages staying parked without notice or expiry during headless sessions and startup
  • Fixed conversation history breaking on Remote Control session resume after very large conversations had been compacted
  • Fixed claude self-hosted-runner silently registering and then failing every session when --base-dir couldn’t be created or written — it now exits at startup with a clear error instead

Why the Cadence Matters

Two substantial releases in under 24 hours is fast even by Claude Code’s standards, and it’s a useful signal about where Anthropic sees demand: self-hosted infrastructure, multi-agent coordination across sessions and machines, and cost visibility for teams running Claude Code at scale through gateways. None of these are flashy consumer-facing features — they’re the kind of plumbing that matters once you’re running Claude Code as infrastructure rather than as a personal coding assistant.

If you’re running self-hosted runners or cross-session messaging in a multi-agent setup, the workspace trust prompt and gateway spend-limit warnings in v2.1.225 are both things you’ll want to test before rolling the update out broadly, particularly if your team relies on scripted or headless launches that might now hit an unexpected trust confirmation.

For exact command syntax and configuration flags, refer to Anthropic’s official Claude Code changelog and self-hosted environments documentation — the specifics of flags like --base-dir and settings like crossSessionInbound should be verified against the current docs before you build automation around them, since these are fast-moving, recently-shipped features.

Sources

  1. Claude Code v2.1.224 official changelog — Anthropic
  2. Claude Code v2.1.224 release notes — GitHub
  3. Claude Code v2.1.225 release notes — GitHub
  4. Claude Code v2.1.224 update coverage — Classmethod

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