Claude Code auto-renames window/tab titles, breaking multi-agent workflows

Problem

Claude Code recently started automatically renaming terminal/VS Code window and tab titles based on conversation content. This breaks workflows where users rely on stable, user-assigned window titles to identify and coordinate between multiple concurrent Claude Code sessions.

My Setup

I run multiple Claude Code sessions in parallel (VS Code extension, claudeCode.preferredLocation: "panel"), each with a distinct ALL CAPS title that identifies its role (e.g., "CRM", "WEBSITE", "SYNTH"). These sessions communicate with each other via git commits using an inter-session protocol that depends on knowing which session is which by its window title.

What Changed

Previously, window/tab titles stayed stable after being set. Now Claude Code dynamically overwrites them — presumably via terminal escape sequences — based on the conversation topic. This means:

• I can no longer visually identify which session is working on what
• I lose track of sessions mid-workflow
• The inter-session coordination system breaks because I can't locate the target session

Expected Behavior

Window/tab titles should remain stable once set by the user, OR there should be a setting to disable automatic title updates. Something like:

{
  "windowTitle": "static"
}

or a --no-title-update flag, or respecting the --name / -n flag as a lock on the title.

Environment

• Claude Code VS Code extension
• macOS (Darwin 21.6.0)
• claudeCode.preferredLocation: "panel"
• Multiple concurrent sessions

Workaround Attempted

Added a SessionStart hook instructing the agent not to rename titles, but this only addresses agent-initiated renames — if the title change is happening at the application/runtime level, it won't help.