Copilot Chat

copilot-chat uses the GitHub Copilot Chat window inside VS Code instead of launching a CLI process.

When to use it

• You want to stay entirely inside the chat UI
• Your workflow is extension-first rather than terminal-first
• You do not need standalone CLI execution

Notes

• This harness is only available in VS Code.
• Chat-window behavior differs from the CLI harnesses, so CLI-specific flags and PTY features do not apply.
• Workflow syntax stays the same, which makes it easy to move between copilot-chat and a CLI harness later.