Start and drive your own session-owned Blender MCP instance on a non-default port without touching an already-running Blender or another agent's session. Use when you need Blender MCP but port 9876 is taken, when multiple agents must use Blender concurrently, when you must not disturb a running GUI scene, or when the user says "spin up your own Blender", "isolated Blender", "second Blender MCP instance", "don't touch the running Blender".
