copilot

Copilot CLI v0.0.421: MCP Forms & Terminal UX

Autopilot permission timing fix, AUTO theme color sync, MCP form input, and a batch of terminal rendering fixes for Windows and Linux.

TL;DR

MCP Elicitations structured forms — ask_user tool now supports form-based input with multi-line text fields and better UX (experimental)
AUTO theme terminal color sync — reads your terminal's ANSI palette directly so colors match your theme without manual config
--plugin-dir flag — load plugins from local directories for faster development iteration
Clickable PR references — branch name in status bar now shows clickable PR links
Terminal link clicking — click links in the terminal to open them in your default browser
Repo-level config via .github/copilot/config.json — share project settings like marketplaces and launch messages across your team
Linux primary selection buffer — mouse text selection automatically copied for middle-click paste
Reasoning effort config for ACP — configure reasoning effort via session config options

Autopilot permission dialog now appears on first prompt submission instead of mode switch
Spurious "write EIO" error entries no longer appear during session resume or terminal state transitions
Python-based MCP servers no longer time out due to buffered stdout
MCP server availability correctly updates after signing in, switching accounts, or signing out
VS Code shift+enter and ctrl+enter keybindings for multiline input
Streaming output no longer truncates in alt-screen mode
Right-click paste no longer produces garbled text on Windows
Shell command output on Windows no longer renders as "No changes detected" in timeline
GitHub API errors no longer appear as raw HTTP messages when using # reference picker
Markdown tables now render with proper column widths, word wrap, and Unicode borders
MCP elicitation form displays taller multi-line input, hides tab bar for single-field forms, fixes error flashing on field navigation

Auto-update now uses consistent ~/.copilot/pkg path instead of XDG_STATE_HOME — update scripts if you rely on the old path
Error when --model flag specifies an unavailable model — previously silent, now explicitly fails

Plugin commands now read extraKnownMarketplaces from project-level .claude/settings.json for Claude compatibility
Git hooks can detect Copilot CLI subprocesses via COPILOT_CLI=1 environment variable to skip interactive prompts

Update via: copilot update or check the release page