ToolClaudeClaude Code

Claude Code update adds AWS cost attribution

Original title: Claude Code 2.1.318

Plain language

What it is: A new update for Claude Code, version v2.1.318, has been released with bug fixes and small usability improvements.
How it works: The tool now remembers your choices when asking to enable modifications it writes, and displays warnings before your login session expires.
Where it is available: This update is available for Claude Code users across different environments, including macOS, cloud sessions, and remote setups.
Example: The system will display a one-line warning ten days before your stored claude.ai login session is set to expire.

What it is: Claude Code version v2.1.318 has been released, introducing bug fixes, configuration improvements, and new options for AWS integration and MCP servers.
How it works: It adds assume_role on mantle upstreams of the Claude apps gateway for cross-account AWS roles and cost attribution. It also introduces an effort option to a mod's $.model.fork and fixes config file locking issues for claude mcp commands.
Where it is available: The changes apply to the Claude Code CLI, self-hosted runners, cloud sessions, and the VSCode integration.
Example: Developers can use the new effort option in $.model.fork to run a quick side job at a lower effort level than the main session.

The headline and explanation on this page are based on Anthropic's post. The full details are in the original.

Claude Code 2.1.318