Turn the current session into an SDLC orchestrator that coordinates parallel background agents running PRP skills in isolated worktrees - decompose work into workstreams, launch and steer agents with the native agent tools, hold review gates as the user's proxy, and sequence merges. Use when the user wants to "spawn N agents in separate worktrees", "run prp-issue on these issues in parallel", "orchestrate these features", "act as my orchestrator", "coordinate agents through the PRP pipeline", "ship these issues in parallel", or invokes /prp-orchestrate.