# Claude Code 2.1.305

By Steven Van · 2026-10-20

Version 2.1.305 adds a Linux sandbox option for user namespaces and a retry-mode usage limit recheck, and fixes a tool search failure on Vertex and Bedrock.

[Claude Code](<https://creatorstoolbox.com/tools/claude-code>) 2.1.305 adds two settings and fixes a 2.1.304 regression that made every request fail on some providers. The [changelog entry](<https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md#21305>) lists the changes below.

## New settings

- **sandbox.allowNestedUserNamespaces** lets sandboxed commands on Linux create user namespaces, for tools such as Chromium and rootless podman. The changelog notes that this lets those commands get around the sandbox's file protections.

- **CLAUDE\_CODE\_RETRY\_WATCHDOG\_USAGE\_LIMIT\_RECHECK\_MS** lets unattended retry mode (CLAUDE\_CODE\_RETRY\_WATCHDOG) notice a usage limit that was lifted before its scheduled reset.

## Fixes

- Every request no longer fails on Vertex, Bedrock and other providers when the endpoint or a gateway rejects tool search. The same applied behind gateways with ToolSearch disallowed or left out of --tools. This was a 2.1.304 regression, and Claude Code now retries without tool search.

- The /effort and /autocompact settings now apply when the model name differs from a modelOverrides value by letter case or a \[1m\] tag.

- New worktrees in a bare repository no longer sometimes start from local HEAD instead of the default branch. Unchanged subagent worktrees are also cleaned up reliably.

- Bash commands on a full disk no longer fail with a raw ENOSPC file path. The error now says the disk is full and that nothing ran.

- An MCP server passed by a cloud session or by the SDK's setMcpServers is no longer replaced later in the session by a same-named server from the user's own settings.

![Claude Code](<https://claude.com/images/icon-512x512.png>)

Claude Code

Anthropic's agentic coding tool — Claude in your terminal, IDE, desktop app and browser, reading and editing your codebase, running commands, opening pull requests and working on tasks in the cloud.

[View Claude Code →](<https://creatorstoolbox.com/tools/claude-code>)

[Original source](<https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md#21305>)

[Read Claude Code 2.1.305 on Creators Toolbox](<https://creatorstoolbox.com/blog/claude-code-claude-code-2-1-305>)

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Canonical source: https://creatorstoolbox.com/blog/claude-code-claude-code-2-1-305