v0.2.20

• Roadmap support — graph_roadmap tool, decision_context on plan/update/connect/restructure/resolve, auto-resolve control (auto_resolve, cascade_resolve), ancestor_filter on graph_next
• Auto-resolve sweep on graph_onboard — retroactively resolves stale parents whose children are all done
• Agent feedback improvements — dedup warnings in graph_plan, knowledge audit quality fixes (compact output, healthy count)
• Knowledge at scale — metadata-first reads (~95% token reduction), batch fetch (keys param), cross-cutting heuristic (convention/architecture auto-surfaced in graph_next)
• Optimized tool descriptions — drive correct agent behavior for graph_plan, graph_update, graph_knowledge_write, graph_resolve
• Rewritten agent instructions — intro explaining Graph's purpose, happy-path-first ORIENT, discovery as sub-process, project auto-select, error recovery section, clarified sl:nodeId scope, rules split into critical vs important