Etch

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Install Etch for GitHub Copilot

Copilot Chat with MCP (VS Code Insider)

Prerequisite: you need a project_id and app_token. Sign up in 30 seconds if you don't have them yet. Free tier, no credit card.

Install

pip install world-model-mcp
cd /path/to/your/project
python -m world_model_server.cli install-copilot \
    --etch-project YOUR_PROJECT_ID \
    --etch-token wm_YOUR_APP_TOKEN

Verify

ls .vscode/mcp.json
# In VS Code Insider: open Copilot Chat > Tools. world-model-mcp should be listed.

How it works

MCP support in Copilot Chat is currently a VS Code Insider feature. The installer writes to .vscode/mcp.json, which Copilot Chat picks up on next reload.

Source: adapters/copilot/

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