two-agent-harness

This skill sets up a complete two-agent development system based on the 'Effective Harnesses for Long-Running Agents' research. It creates an initializer-agent (for project planning) and a coding-agent (for incremental implementation), along with enforcement hooks and progress-tracking infrastructure. Use this when users ask to 'set up two-agent system', 'install agent harness', 'configure Opus delegation', or when they want to implement the two-agent architecture pattern.