Advisor tool pair split breaks session

“After the session process was restarted (--resume), every request failed with a 400, and nothing in the UI could recover the session.”

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/17403/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

Session breaks with 400 after record splits advisor tool pair. A user or /goal record written mid-turn lands between advisor server_tool_use and advisor_tool_result; resume and /compact fail.

Is this your bug?

File my report

Where: session transcript
Error text: unexpected `tool_use_id` found in `advisor_tool_result` blocks
Versions: 2.1.277 to 2.1.304
Platforms: Linux, macOS
How bad: Breaks a normal workflow.

Part of: Advisor blocks break session history3 bugs

Orphaned advisor_tool_result 4004 people
Duplicate server_tool_use ids 4002 people

Original reports2, newest first

Oct 21, 2026Session permanently broken after mid-turn user message splits advisor server_tool_use/result pair (400 on resume)#104122
Sep 18, 2026A /goal Stop-hook record written mid-turn splits an advisor server-tool call from its result, permanently bricking the session (400 loop)#95463