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Rank, 14 days: 288 on the Claude Code sheet
2 people reported

All time, since Sep 20.

Phantom user messages in context

“The text reached the model's context but was never written to the .jsonl log as a user turn.”

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

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I hit this bug: rapsheet.dev/sheets/claude-code/issues/17288/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

Fading. No reports in the last 7 days and 1 the week before, down from 2 a week at the late-September peak.

Unsent user text reaches assistant context but is missing from session log. Text the user never typed arrives as a user message, while the .jsonl log records it as assistant or not at all, and /export lacks the "> " marker.

Is this your bug?

File my report
Where
Session context
Versions
2.1.88 to 2.1.273
Platforms
macOS, Windows
How bad
Security risk: something exposed, or done without permission.

Not quite your bug?

  1. Fabricated user turns11 people

Original reports3, newest first

  1. A user message that was never recorded appeared in the model's context#105894
  2. Role boundary corruption: unsent user messages injected into assistant context in long sessions#95632
  3. Session context desync: unlogged user text received by assistant but absent from .jsonl and /export#95627

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