prompt-learning-mcp

The server uses environment variables for API keys and database URLs, avoiding hardcoded secrets. It employs LLM calls for evaluation and optimization, which are generally safe if prompts do not introduce code execution. The `cli.ts` and `setup.ts` scripts utilize `execSync` and `node -e` for system commands and configuration, respectively. While these carry inherent risks, they are used within the context of installation and CLI operations, where the user has initiated the commands. Input validation for `transcript_path` in `handleHook` is limited to existence, but in the context of Claude Code hooks, this path is expected to be controlled by the system. Overall, the security posture is strong for its intended purpose.