nav-install-multi-claude

# Navigator Multi-Claude Workflow Installer

Install multi-Claude orchestration scripts for parallel AI execution.

## When to Invoke

Auto-invoke when user says:
- "Install multi-Claude workflows"
- "Set up multi-Claude orchestration"
- "Enable parallel execution"
- "Complete Navigator 4.3.0 installation"
- "Install Navigator workflows"

**DO NOT invoke** if:
- Scripts already installed (check with `which navigator-multi-claude.sh`)
- User is just asking about multi-Claude (informational)
- Navigator plugin not installed

## What This Installs

**Scripts installed to `$HOME/bin/`**:
- `navigator-multi-claude.sh` - Full 6-phase workflow orchestration
- `navigator-multi-claude-poc.sh` - Simple 3-phase POC
- `install-multi-claude.sh` - This installer (for future updates)

**Why needed**: Plugin installation only copies skills/templates. Multi-Claude scripts live outside plugin structure and require separate installation.

## Execution Steps

### Step 1: Check if Already Installed

```bash
if command -v navigator-multi-claude.sh &> /dev/null; then
  INSTALLED_PATH=$(which navigator-multi-claude.sh)
  INSTALLED_VERSION=$(grep -o 'VERSION=.*' "$INSTALLED_PATH" | head -1 | cut -d'=' -f2 | tr -d '"' || echo "unknown")

  echo "✅ Multi-Claude workflows already installed"
  echo ""
  echo "Location: $INSTALLED_PATH"
  echo "Version: $INSTALLED_VERSION"
  echo ""
  echo "To reinstall/update:"
  echo "  rm $INSTALLED_PATH"
  echo "  'Install multi-Claude workflows'"

  exit 0
fi
```

### Step 2: Verify Prerequisites

```bash
# Check Claude CLI
if ! command -v claude &> /dev/null; then
  echo "❌ Claude Code CLI not found in PATH"
  echo ""
  echo "Multi-Claude workflows require Claude Code CLI to spawn sub-Claude instances."
  echo ""
  echo "Install Claude Code first, then retry:"
  echo "  https://docs.claude.com/claude-code/installation"
  exit 1
fi

# Check Navigator plugin installed
PLUGIN_PATHS=(
  "$HOME/.claude/plugins/marketplaces/navigator-marketplace"
  "$HOME/.confi