Actor-model agentic UI — design lock-in

Summary

Refined Actor-model agentic UI after design review:

  • Model-proposed spawn on drift (primary); disambiguation node for boundary ambiguity

  • Per-node disk authoritative; orchestrator/meta.jsonl metathread with line refs (not cosmetic mega-log routing)

  • Struct 1:1 with disk; ACTOR_WAIT_GRAPH default warn

  • Temporal layout documented as planned view engine (global + sub-timeline scopes; agent-generated bookmarks)

  • Hierarchical coordinator vs global personal-context = different views, same graph store

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