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The agent executes `kubectl` and `helm` commands via `subprocess.create_subprocess_exec` and `subprocess.Popen`. Commands are constructed as lists of strings, mitigating direct shell injection. However, as an AI agent, it generates these commands based on LLM output, which inherently carries a risk of executing unintended commands if the LLM hallucinates or misinterprets instructions. A 'plan' review and user confirmation step in `agent.py` acts as a crucial safeguard. The `fetch_manifest` function can download content from arbitrary URLs and has an `insecure_skip_tls_verify` option, posing a risk if used without caution. API keys are managed in a `.config/kubestellar/api_keys.json` file with restrictive permissions (0o600) or via environment variables.