2 people reported

All time, since Sep 22.

Resumed subagent report not delivered

“A subagent that has already delivered its report via SubagentHandback and is then woken up again can no longer report back.”

Is this your bug? What gets counted gets fixed. Pile on.

Paste this into your agent. It files your report, with your error and version.

I hit this bug: rapsheet.dev/sheets/claude-code/issues/2864/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

Resumed subagent's follow-up report never reaches the caller. The hand-back tool only delivers once, while the task notification still says completed or "the result below may be interim".

Is this your bug?

File my report
Where
Subagents
Error text
Nothing was sent: your report was already delivered (SubagentHandback delivers one report). Use SendMessage for anything further, then stop.
Versions
2.1.280 to 2.1.281
Platforms
Linux
How bad
Breaks a normal workflow.

Not quite your bug?

  1. Teammate subagent handback fails6 people
  2. Duplicate background agent notifications3 people

Original reports2, newest first

  1. Second SubagentHandback after resume is rejected and the subagent stops instead of reporting via SendMessage — follow-up report is silently lost#96849
  2. A resumed background subagent can't deliver its final report (hand-back delivers only once)#96170

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