hermes-agent (legacy single-query runner)
The install also ships hermes-agent, a minimal runner that sends one query and exits: hermes-agent --query "summarize README.md" (or hermes-agent "summarize README.md"). hermes-agent --help lists its options (--model, --base-url, --max-turns, --enabled-toolsets, --disabled-toolsets, --list-tools, --save-trajectories, …) and hermes-agent --version prints the version; neither starts the agent. Run with no query, it prints the same help and exits. For anything else use hermes (hermes -z <prompt> is the scripted one-shot).
From the official Hermes Agent CLI reference.