Copilot CLI v0.0.406: Claude Opus 4.6 Fast & MCP Enhancements
Copilot CLI 0.0.406 brings Claude Opus 4.6 Fast preview, MCP structured content support, and new CLI commands for better control and visibility.
TL;DR
- Claude Opus 4.6 Fast now available in preview
- MCP tools now display structured content (images, resources) in VS Code
- New `/changelog` command and `--no-experimental` flag for feature control
- Plugin marketplace now accepts URLs; commands translate to skills
New
- Claude Opus 4.6 Fast support — Preview access to faster Opus model for quicker responses
- Markdown formatting in non-interactive mode — Output now properly renders markdown without interactive terminal
- /changelog command — View release notes directly from the CLI
- Plugin marketplace URL support — Add plugins by passing URLs as sources instead of just package names
- --no-experimental flag — Disable experimental features for stable workflows
- MCP structured content display — Tool responses now include images and resources for richer UI in VS Code
- /mcp show status indicator — See enabled/disabled status for each MCP tool at a glance
- Plugin commands as skills — Commands from plugins are now translated into skills for better integration
Fixed
- CLI interface rendering — Removed extra blank lines in output
- Subscription warning — Display alert when user lacks Copilot subscription
Update with: npm install -g @github/copilot-cli@0.0.406
Source: Copilot CLI
