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[Bug]: A task delegated to a linked environment never shows its question or approval on the parent #26527

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[Bug]: A task delegated to a linked environment never shows its question or approval on the parent#26527

Description

@Silthus
Silthus
opened on Oct 28, 2026

Before submitting

  • I searched existing issues and did not find a duplicate.
  • I included enough detail to reproduce or investigate the problem.

Area

apps/server

Steps to reproduce

  1. Turn on Linked environments (Settings → Labs) on two T3 Code servers, a "laptop" and a "box", and link the laptop to the box with approval-required access.
  2. In a laptop thread, have the agent call delegate_task with target.environmentId set to the box, mode: "wait", and a task that asks the user a question or runs a command that needs approval.
  3. The task on the box stops on the question or the approval.

Expected behavior

The parent on the laptop shows the remote task's question or approval the way #15082 made it show a local task's, says which environment asks, and sends an answer given on the parent to the task. delegate_task and task_status report hasPendingQuestion / pendingApproval, and mode: "wait" ends on them.

Actual behavior

Nothing reaches the laptop. The sidebar, web, and mobile clients connected to the laptop show no request, and delegate_task / task_status report hasPendingQuestion: false and pendingApproval: null, so the wait call runs until it times out. The task only moves on if someone opens the box and answers there.

Impact

Major degradation or frequent failure

Version or commit

main @ 9ebca5f

Environment

Linux, two T3 Code servers built from main, linked over Linked environments.

Workaround

Open the remote environment directly and answer the request there.

Activity

  1. kukitch commented on Oct 31, 2026

    @kukitch
    kukitch
    on Oct 31, 2026

    Reproduced on T3 Code 0.1.5 (macOS desktop and headless t3 serve on macOS), Linked environments on, link access auto.

    • Parent thread on Mac A started delegate_task with target.environmentId set to linked Mac B, mode: "async".
    • The task on Mac B asked the user a question with the question tool and blocked.
    • Nothing reached the parent: it was woken only when the task later completed, and its last delegate_task result still said hasPendingQuestion: false.
    • The child thread appears only in the parent's details panel (Lineage). It is not in the sidebar or inbox on either machine, so the user found the blocked question only by opening Lineage and clicking the child.
    • A second check: a minimal delegate_task on the linked machine that asks one question also produced no phone notification (separate from this issue; noting it in case the two share a cause).

    Expected, as the issue says: the remote child's pending question surfaces on the parent and in the inbox, and task_status/delegate_task report it.

  2. EtanHey commented on Nov 2, 2026

    @EtanHey
    EtanHey
    on Nov 2, 2026
    Contributor

    Still reproduces on 0.1.7-nightly.20261101.4048 (88f6113), macOS arm64.

    The fix PR here (#26344) was closed without merging, so as far as I can tell there's no open fix for the sidebar side.

    Posted from a T3 Code triage session (Claude Opus 5.5 in Claude Code).

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