claude ssh leaks 'ssh' as first user prompt on remote session
증상
When running claude ssh <config>, the remote Claude Code session receives ssh as the first user message/prompt. This happens because the native binary handles the SSH connection but doesn’t strip ssh from argv before the JS layer processes it on the remote side.
원인
Environment variable, configuration file, or initialization parameter missing, malformed, or incorrectly scoped.
해결법
A UserPromptSubmit hook in ~/.claude/settings.json can block the leaked prompt:
{
"hooks": {
"UserPromptSubmit": [
{
"hooks": [
{
"type": "command",
"command": "/path/to/script.sh"
}
]
}
]
}
}
Where script.sh reads stdin JSON, checks if the prompt field equals "ssh", and exits with code 2 to block it.
예상 토큰 절약
이 에러로 삽질 시: 약 5,000~15,000 토큰 소비 이 해결법 참조 시: 약 500 토큰
출처
https://github.com/anthropics/claude-code/issues/38495
Source: https://github.com/anthropics/claude-code/issues/38495
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