[Bug] AskUserQuestion tool causes token loop with "court" repetition

Bug Description
Title: AskUserQuestion tool triggers degenerate token loop ("court" repeated)

When the assistant invokes the AskUserQuestion tool, the output stream
degenerates into hundreds of repetitions of the token "court" before/around
the tool call. It is reproducible and recurs every time AskUserQuestion is used.

• Model: Claude Opus 4.8 (claude-opus-4-8)
• Env: Claude Code CLI on macOS (darwin)
• Trigger: any AskUserQuestion call
• Frequency: every time (100% in this session)
• Workaround so far: avoid AskUserQuestion, ask in plain text
• Also observed: sometimes after reading images
• Attaching session transcript (contains multiple reproductions).

Environment Info

• Platform: darwin
• Terminal: xterm-256color
• Version: 2.1.201
• Feedback ID: 8536d3a5-6313-4b16-a956-a265b7c4d59b

Errors

[{"error":"Error: 413 {\"error\":{\"type\":\"request_too_large\",\"message\":\"Request exceeds the maximum size\"}}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:12:72264)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:52:7688)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-07-05T19:20:40.568Z"}]