Beware of Coding Agents Leaking API Keys in Local Logs
AccomplishedLab3697 · reddit · 2026-07-14
When using coding agents like Claude Code or Cursor, all conversation logs are permanently saved locally (e.g., /.claude). If users paste API keys or print environment variables, this sensitive data remains in plaintext, highly vulnerable to leaks via backups or screen sharing.
To address this, a dedicated cleanup tool was introduced. It scans local histories for about 29 types of agents and matches hundreds of key patterns. The tool runs fully offline, defaults to scan-only without auto-modifying, and supports backups and undo. Users are advised to have their agent perform a security review on the tool's repository before use.
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