prompt leak scanner for Claude Code

io.github.guardbee/prompt-leak-scanner

Catches leaked credentials and PII in outbound LLM prompts

client:Claude Code transport:stdio runtime:npm

Install prompt leak scanner in Claude Code

run in your project directory

claude mcp add prompt-leak-scanner -- npx -y @guardbee/mcp-prompt-leak-scanner

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs