setup

/mddesign:setup

First-run setup. Detects what is missing on this machine and walks the user through installing it. Idempotent — safe to run any time.

What I check, in order

Dependency	Required	What it gives you
node + npx	required	DESIGN.md linter (Google's @google/design.md)
@google/design.md	required	structural validation for harvest and critique
planning-with-files skill	required	task_plan.md / findings.md / progress.md
code-memory-router skill	optional but recommended	three-tier memory routing (scratch / WHERE / WHY)
MemPalace MCP	optional	persistent WHY-tier decisions
QMD MCP	optional	WHERE-tier code/doc search

Flow

For each dependency, run the detection probe. If missing, print a one-paragraph install block tailored to the user's platform (Windows / macOS / Linux). After printing the install block, stop and wait for the user to say "done" or "skip" before moving to the next dependency.

Step 1: Node + npx

command -v node && command -v npx

If absent:

Node is not on PATH.

Install Node.js LTS from https://nodejs.org. On Windows: download the Windows Installer (.msi). On macOS: brew install node. On Linux: use your distro's package manager or nvm.

After installing, restart your terminal and run /mddesign:setup again.

Step 2: @google/design.md

npx --yes @google/design.md lint --help 2>&1 | head -1

If empty or error: nothing to install per se (npx fetches on demand). Verify cache works by:

mkdir -p /tmp/mddesign-probe && cd /tmp/mddesign-probe && cat > DESIGN.md <<'EOF'
---
version: alpha
name: Probe
colors:
  primary: '#000000'
typography:
  body:
    fontFamily: Inter
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
rounded:
  md: 8px
spacing:
  md: 16px
components:
  button:
    backgroundColor: '{colors.primary}'
---
# Probe
## Overview
test
## Colors
test
## Typography
test
## Layout
test
## Elevation & Depth
test
## Shapes
test
## Components
test
## Do's and Don'ts
test
EOF
npx --yes @google/design.md lint DESIGN.md
echo "EXIT: $?"