fix: surface /agents nudge for single-delegate fan-out (TUI + CLI)#35216
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kshitijk4poor merged 1 commit intoMay 30, 2026
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The subagent spawn-observability overlay added a `(/agents)` hint, but
only on the standalone "Spawn tree" panel, gated behind `!inlineDelegateKey`
— it never showed for a single delegate_task call, and only appeared once
subagents had already registered. A nudge that arrives at the end (or only
after spawn) is useless for the actual goal: letting users open the live
monitor *while* delegation is running.
Surface it the moment delegation starts, on both surfaces:
TUI (ui-tui/src/components/thinking.tsx)
- Show `(/agents)` on any "Delegate Task" tool group as soon as it appears
(in-flight, before any subagent registers), not gated on subagents
already existing. Same `startsWith('Delegate Task')` predicate already
used for delegateGroups.
CLI (agent/tool_executor.py)
- Append `· /agents to monitor` to the delegate spinner label, which is
displayed for the full duration of the delegate_task call. The previous
attempt put the hint on the completion line (get_cute_tool_message),
which only renders after the call finishes — reverted.
TUI tsc clean (pre-existing execFileNoThrow type errors unrelated);
subagentTree 35/35; display.py reverted to upstream.
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Problem
The subagent spawn-observability overlay added a
(/agents)nudge, but only on the standalone Spawn tree panel, which is gated behind!inlineDelegateKey. When a turn has exactly onedelegate_taskgroup, the subagents render inline under "Tool calls" and that panel is suppressed — so the nudge never appears for the common single-delegate case (onedelegate_taskcall, even with multiple parallel tasks inside it).The CLI never had the nudge at all.
Fix
TUI (
ui-tui/src/components/thinking.tsx)(/agents)suffix to the inline delegate group header, gated on the already-computedhasInlineSubagents. Mirrors the suffix the standalone Spawn tree panel already shows.CLI (
agent/display.py)delegate_taskcompletion line inget_cute_tool_messagecarried no nudge. Add(/agents)to both variants (parallel tasks and single goal)./agents(aliastasks) is a real CLI command, so the hint resolves.Verification
tests/agent/test_display.py: +2 regression tests covering both delegate variants — suite green.tsc --noEmit: clean.subagentTree.test.ts: 35/35. Full vitest suite green except one pre-existing, unrelatedinput-event.test.tsfailure (SGR mouse fragment stripping), confirmed failing on the base with these changes stashed.dist/bundle and confirmed the compiledthinking.jscontains the inline nudge.