The tools we use to optimize our workflows including API-level observability, automated auditing workflows, MCP tool pruning, and CLI substitution are all available today in the GitHub Agentic Workflows framework. Another upcoming optimization is refactoring monolithic agents into teams of subagents using smaller and cheaper models. The next step is to move from workflow-level optimization to system-level optimization. A workflow run is not really one flat sequence of API calls. It is a chain of episodes: short phases of work like gathering context, reading artifacts, retrying after a failure,