## Environment - Platform (select one): - [x] Anthropic API - [ ] AWS Bedrock - [ ] Google Vertex AI - [ ] Other: - Claude CLI version: 1.0.31 - Operating System: Ubuntu 22.04 - Terminal: Alacritty ## Bug Description Claude code crashed randomly with the following output: ``` ● Good! The build

[BUG] Unexpected crash with 'RangeError: Invalid string length'

Resolved 💬 3 comments Opened Jun 23, 2025 by monkey-w1n5t0n Closed Aug 21, 2025
Environment

Platform (select one):
[x] Anthropic API
[ ] AWS Bedrock
[ ] Google Vertex AI
[ ] Other:
Claude CLI version: 1.0.31
Operating System: Ubuntu 22.04
Terminal: Alacritty
Bug Description

Claude code crashed randomly with the following output:
● Good! The build is now successful and most tests are passing. There are only 2 failing test cases with 3 failing assertions. Let's examine these specific
  failures:

  1. result == Value::atom(String("nil")) in test_atoms.cpp:23
  2. !(result1.is_error()) in test_atoms.cpp:28 - "evaluated empty list"
  3. !(result.is_error()) in test_evaluation.cpp:79

  Let me check these specific test failures:

● Read(test/interpreter/basic/test_atoms.cpp)
  ⎿  Read 15 lines (ctrl+r to expand)

● Read(test/interpreter/basic/test_evaluation.cpp)
  ⎿  Read 10 lines (ctrl+r to expand)

● The issues seem to be:

  1. Line 23: The test expects nil to evaluate to an atom, but it's probably evaluating to a proper nil value type
  2. Line 28: :keyword evaluation is failing (it's returning an error)
  3. Line 79: Empty list () evaluation is failing (it's returning an error)

  These are likely actual interpreter behavior issues rather than test conversion problems. The tests are revealing that some core functionality isn't working as
  expected in the interpreter. Let me check what nil actually evaluates to:

  Bash(cd builddir && echo "nil" | ./repl)
  ⎿  Running…

* Soaring… (21s · ⚒ 9.0k tokens · esc to interrupt)

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  ⏵⏵ auto-accept edits on (shift+tab to cycle)


file:///home/w1n5t0n/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:624
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                                                   

RangeError: Invalid string length
    at Socket.<anonymous> (file:///home/w1n5t0n/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:624:7437)
    at Socket.emit (node:events:517:28)
    at Socket.emit (node:domain:489:12)
    at addChunk (node:internal/streams/readable:368:12)
    at readableAddChunk (node:internal/streams/readable:341:9)
    at Readable.push (node:internal/streams/readable:278:10)
    at Pipe.onStreamRead (node:internal/stream_base_commons:190:23)

Node.js v18.19.1
Steps to Reproduce

Expected Behavior

Actual Behavior

Additional Context

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