301-03 — MCP and Cursor

What you will build

A topology sketch explaining when Python is MCP client vs when Cursor hosts LCDL as MCP sidecar.

Prerequisites

• 301-02

Files you will touch

Documentation reads only:

Step 1 — Draw two arrows

1. IDE → LCDL tools (sidecar stdio server).
2. LCDL script → external MCP (fetch snapshot example).

Step 2 — Policy alignment

Note organizational policies for browser, network egress, and secret storage—LCDL documents expectations; consumers enforce.

Step 3 — Smoke optional examples

Offline-first:

PYTHONPATH=src python3 examples/contracts/load_contract_spec.py

Live MCP examples stay behind docs warnings—see example READMEs under examples/mcp/.

Expected output

Team agrees which integration matches their Cursor rollout.

Common failures

Verify

Quiz yourself: “Who owns the Playwright process?” → Consumer / MCP server, not forge_lcdl.

Next step

301-04 — Benchmarks and CI.