July 8, 2026

Tray Headless — select your workspace at sign-in

Tom Walne, Product Director

Tray Headless no longer needs a Workspace ID. You now choose which workspace to work in during the one-time OAuth2 sign-in, and that selection is remembered for every call — there's nothing to enter, configure, or pass.

This applies across Tray Headless:

• Claude Code plugin — the install-time Workspace ID prompt is gone; select your workspace in the browser when you sign in.
• Codex plugin — the Active Tray Workspace: line in AGENTS.md is no longer needed; select your workspace during codex mcp login tray.
• Tray Headless MCP — no workspaceId argument on tool calls; the workspace comes from your sign-in.

To work in a different workspace, sign in again and select it. See Tray Headless for Claude Code, Tray Headless for Codex, or Tray Headless MCP.