[BUG] Bash tool fails when pipe character appears in quoted arguments

Environment

• Platform (select one):
• [ ] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: Claude Code
• Claude CLI version: 1.0.40
• Operating System: macos 14.7.4
• Terminal: iTerm2

Bug Description

When Claude uses the Bash tool, this usually times out:
rg -n $'transform:rotate|target.style.background' . --type ts

But this works fine
rg -n -e "transform:rotate" -e "target.style.background" . --type ts

And the original command works fine for me too when executing outside Claude cli.

A bit of experimentation makes me think that the pipe character is the culprit

> Claude, try: echo "foo|bar"

⏺ Bash(echo "foo|bar")
  ⎿  foo < /dev/null | bar

⏺ This is very revealing! The output shows foo < /dev/null | bar instead of the expected foo|bar.

Steps to Reproduce

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Expected Behavior

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Actual Behavior

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Additional Context

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