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Tree: show a coordinator its children's runtime load #507
Description
What
A tree coordinator delegates without knowing which child is already busy, so it can stack work on a child that is mid-task.
Expected behavior
- Each Bot's open turns are counted from the activity feed (
turn.start/turn.end); nothing is persisted and counts start at zero. - The coordinator's prompt gains one line:
Child load right now — Work: busy (2 running), Travel: idle. list_childrencarries aloadcount per child.- A coordinator is told to send a new part to an idle or working child before a busy one.
Change scope
New plugins/tree/src/load.js (pure tracker + wording), plugins/tree/src/tree.js (prompt note + noteTurnStart/noteTurnEnd/loadOf), plugins/tree/src/tools.js (list_children load), plugins/tree/index.js (feed wiring), tests plugins/tree/test/load.test.js + one case in plugins/tree/test/tree.test.js, docs/subsystems/tree.md.
Why
Runtime load awareness for delegation (see the roadmap discussion), additive to the prompt-driven coordination and independent of the plan ledger.
Activity
Birfy commentedon Oct 20, 2026
Triage (2026-10-20 14:59 Asia/Shanghai, main
303c0d6): needs-human — external PR #508 implements this. Design fits owner tree rules (process-local activity-feed counts, ids/times only, additive to prompt-driven coordination, independent of a plan ledger). One real issue on the PR: the prompt line is written only on tree refresh, so it can go stale whilelist_children.loadstays live (docs claim both are live).Waiting on the owner confirmation item (accept as-is / request prompt-freshness fix / defer). Not applying
agent-ready.Birfy commentedon Oct 20, 2026
Owner decision: option (b), fix first.
On HugoXK's #508: putting the child Bots' live turn load into
list_children.loadis fine. The extra prompt line is the problem, because it can go stale: it's written once, and nothing updates it when a child's load changes. Either:turn.start/turn.end, orlist_children.loadalone.Once that's fixed, #508 can be merged. It's an external contributor PR that addresses this issue, so we won't start our own implementation.
Show a tree coordinator its children's runtime load (ThinkFlowLab#508)
Carry a merged Bot's memory into the kept Bot (ThinkFlowLab#450 item …
Keep children's load out of a tree coordinator's system prompt (Think…