[BUG] Pasting a specific block of JavaScript object output into Claude Code causes the process to crash unexpectedly.

Claude Code Crash Bug Report

Environment

• Platform: Anthropic API
• Claude CLI version: 1.0.34 (Claude Code)
• Operating System: macOS 15.5
• Terminal: Warp

Bug Description

Pasting a specific block of JavaScript object output into Claude Code causes the process to crash unexpectedly.

Steps to Reproduce

1. Run Claude Code
2. Paste the following text into the interface:

caseIdRef: "685bd2b9704d2bf3ce7c5a69"
caseInvolvementId: "685c1065f041c465b3c0503c"
caseName: "FAM-2"
casePracticeAreaId: "685bd2b9704d2bf3ce7c5a60"
cohortRole: "Barrister"
cohortType: "Complainant"
historyType: "Added"
timestamp: "2025-06-25T11:29:12.687+00:00"
[[Prototype]]: Object
constructor: ƒ Object()
hasOwnProperty: ƒ hasOwnProperty()
isPrototypeOf: ƒ isPrototypeOf()
propertyIsEnumerable: ƒ propertyIsEnumerable()
toLocaleString: ƒ toLocaleString()
toString: ƒ toString()
valueOf: ƒ valueOf()
__defineGetter__: ƒ __defineGetter__()
__defineSetter__: ƒ __defineSetter__()
__lookupGetter__: ƒ __lookupGetter__()
__lookupSetter__: ƒ __lookupSetter__()
__proto__: (...)
get __proto__: ƒ __proto__()
set __proto__: ƒ __proto__()

Expected Behavior

The input should be processed normally without causing the application to crash, or at minimum display an appropriate error message.

Actual Behavior

Claude Code crashes and terminates the running instance immediately upon pasting this content.

Additional Context

The pasted content appears to be JavaScript object inspection output (likely from browser dev tools or similar). The crash occurs consistently when this specific content is pasted. The content includes prototype chain information and function references which may be triggering the crash.