Document Agent Y four-role workflow and alpha.4 release
Document Agent Y CLI channels and 1.9.0 alpha.2 release
Expand full-project and shared-workspace manual with current diagrams
Document Agent X, Agent Z, fixed rubric, and reviewed alpha release
Document SYSTEMX PROJECTS scopes, setup, and 1.7 alpha release
Avoid Mermaid statement separator in sequence label
Keep subagent sequence labels legible at wiki width
Add visual guides for advanced use cases and subagent processing