## Summary - make the plan tool available by default by removing the feature flag and always registering the handler - drop plan-tool CLI and API toggles across the exec, TUI, MCP server, and app server code paths - update tests and configs to reflect the always-on plan tool and guard workspace restriction tests against env leakage ## Testing Manually tested the extension. ------ https://chatgpt.com/codex/tasks/task_i_68f67a3ff2d083209562a773f814c1f9