Todos
The root document todos stores the world's to-do list.
Each item belongs to user or ultimate.
The todo tool adds items, completes items, and lists open items by owner.
Text must contain 1–300 characters after the tool trims it.
The list retains the newest 50 completed items. The exported mark helper also reopens items.
Only the standing ultimate conversation uses the tool.
The reader uses the existing ultimate.standing-agents document contract.
Until subagents supplies that document, no conversation qualifies automatically.
This port does not designate the root as ultimate.
The beforeInput hook places a note only when the standing conversation's open list changes.
The note and the remembered list commit with the input.
The tool remains deferred. A caller must load it through modelTools or a tool-search extension.
This port contains no browser actions or side-chat delegation.
host/tests/plan_todos.rs verifies the four original cases and real-loader tool calls.