prompt-engineering

No direct evidence of intentionally malicious code in the document; it is an educational guide. However, it contains multiple high-risk patterns that can lead to severe compromise when reused in real systems: executing LLM-generated code with exec(), naïve propagation of secrets from .env into runtime, and sending private documents/prompts to external retrieval/LLM providers. Recommendation: remove or strongly mitigate exec() usage (replace with sandboxed interpreters, strict AST-based validators, or a vetted set of allowed operations), adopt secure secrets handling (use vaults, ephemeral tokens, avoid broad os.environ exposure), treat retrieval/agents as untrusted (redact sensitive fragments, apply data-leakage prevention, minimize sent context), and document explicit safety controls and threat model before publishing runnable examples intended for production use.