Handbook

MCP sidecar — overview

Sidecar means Cursor (or another MCP host) calls LCDL via MCP tools — the inverse of the MCP client, where Python calls external MCP servers.

Updated

When to use

  • IDE-driven workflows that should invoke run_task or small helpers without writing a one-off script.
  • Teams that already standardize on MCP in the editor.

Canonical documentation

  • Full detail: MCP-SIDECAR.md (tool list, configuration, troubleshooting). Some external prompt packs reference docs/agents/mcp-sidecar.md — use this overview + MCP-SIDECAR as the supported targets.
  • Example config: .cursor/mcp.json.example at repo root when present.

Policy

  • Respect browser and network policies of your organization; LCDL documents expectations; you enforce allowed environments.