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Claude Code Adds Gateway Hint Headers, Improves Session Management

Claude Code has introduced new request headers for LLM gateways and enhanced session handling, including notifications for server disconnections and the ability to fork remote-controlled sessions.

By Illumora Editorial

Source · Sep 15, 2026, 8:23 PM · On Illumora · Sep 15, 2026, 8:27 PM

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Read the source →Claude Code What's New + releases — Claude Code changelog - Claude Code Docs
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Claude Code has updated its platform with several new features and fixes, including the addition of specific request headers for LLM gateways. These headers are designed to provide more context for gateway operations and can be enabled by setting an environment variable.

Key Points

  • x-claude-code-request-class, x-claude-code-agent-type, x-claude-code-prev-tool-durations, x-claude-code-compaction, and x-claude-code-context-compacted request headers have been added for LLM gateways.
  • Users can opt into these new gateway hint headers by setting the environment variable CLAUDE_CODE_GATEWAY_HINT_HEADERS=1.
  • A notification now appears when an MCP server disconnects mid-session and automatic reconnection fails, directing users to /mcp.
  • Sessions initiated with claude --remote-control or /remote-control from the Claude app can now be forked, running as a background session on the user's computer.
  • A fix addresses Bash commands that the permission checker could not fully analyze, preventing them from skipping prompts under permissions.blockReadsOutsideWorkingDirectories.
  • Skills synced from claude.ai now move to recoverable trash if an organization disables Skills, rather than remaining available.
  • Issues with 401/403 errors on Bedrock, Vertex, Foundry, and Claude apps gateway now provide messages that name the specific credential to refresh or log in.

Context

According to the Claude Code changelog, these updates aim to improve the operational transparency for LLM gateways and enhance the robustness of user sessions. The changes also address several permission and configuration management issues, ensuring more consistent behavior across different deployment scenarios.

Why It Matters

These updates provide developers with more granular control and visibility into how Claude Code interacts with LLM gateways, potentially aiding in debugging and optimization. Improved session management and clearer error messages can enhance the developer experience and reduce friction during development and deployment.

What To Do

  • Note the new x-claude-code- prefixed request headers if you manage LLM gateways with Claude Code.
  • Test setting CLAUDE_CODE_GATEWAY_HINT_HEADERS=1 to observe the new gateway hint headers in action.
  • Observe the new notification behavior for MCP server disconnections.
  • Experiment with forking remote-controlled sessions from the Claude app to run them in the background.
  • Review how permission checks for Bash commands are handled, especially if using permissions.blockReadsOutsideWorkingDirectories.