claude -p produces empty output with long prompts on Node.js v25.6.1

Bug

claude -p with a prompt >1KB produces empty output (0 bytes). Short prompts (echo 'Say hello' | claude -p) work fine.

Environment

• claude-code: 2.1.47 (also reproduced on 2.0.14)
• Node.js: v25.6.1
• macOS: Darwin 25.2.0 arm64

Reproduction

# Works:
echo 'Say hello' | claude -p --dangerously-skip-permissions
# Empty output:
claude -p --dangerously-skip-permissions -p "$(cat large-prompt.md)"
# Also empty:
claude --dangerously-skip-permissions --print < large-prompt.md

Prompt file is ~1.6KB markdown.