def api_usage [] {
    print "USAGE:"
    print "  syntaxis-api start [OPTIONS]     Start the API server with auto-discovered config"
    print "  syntaxis-api stop                Stop the running API server"
    print "  syntaxis-api restart [OPTIONS]   Restart the API server"
    print ""
    print "COMMANDS:"
    print "  start                            Start the API server with auto-discovered config"
    print "  stop                             Stop any running syntaxis-api process (SIGTERM)"
    print "  restart                          Stop and start the server (useful for reloading config)"
    print ""
    print "OPTIONS:"
    print "      --config <PATH>              Configuration file path (overrides auto-discovery)"
    print "      --host <HOST>                Server host to bind to (default: 127.0.0.1)"
    print "      --port <PORT>                Server port number (default: 3001)"
    print ""
    print "EXAMPLES:"
    print "  syntaxis-api start                        # Start with default config"
    print "  syntaxis-api start --port 8080            # Start with custom port"
    print "  syntaxis-api start --config /custom.toml  # Start with custom config file"
    print "  syntaxis-api stop                         # Stop running server"
    print "  syntaxis-api restart                      # Restart with default config"
    print "  syntaxis-api restart --port 3001          # Restart with custom port"
    print "  syntaxis-api --help                       # Show this help message"
    print ""
    print "ENDPOINTS:"
    print "  GET  /health                Health check endpoint"
    print "  GET  /api/projects          List projects"
    print "  POST /api/projects          Create new project"
    print "  GET  /api/projects/{id}     Get project details"
    print ""
    print "FEATURES:"
    print "  - REST API for project management"
    print "  - Task tracking and management"
    print "  - Phase lifecycle management"
    print "  - Audit trail and change tracking"
    print ""
    print "CONFIG DISCOVERY:"
    print "  1. --config flag (if provided)"
    print "  2. ~/.config/syntaxis/config.toml"
    print "  3. ~/.config/syntaxis/syntaxis-api.toml"
}