Hermes

Adapter for Nous Research's **Hermes** agent CLI.

Install

amux install hermes

Supported on macOS, Linux and Windows.

Auth

Hermes is multi-provider; the adapter accepts any of:

• OPENROUTER_API_KEY
• ANTHROPIC_API_KEY
• OPENAI_API_KEY
• NOUS_API_KEY
• GOOGLE_API_KEY
• GITHUB_TOKEN

Config file (YAML): ~/.hermes/cli-config.yaml.

Minimal run

amux run hermes --prompt "Summarize the latest commits"

Notable flags

• --model <id> — default hermes-3-llama-3.1-405b.
• --prompt <text> — forwarded prompt.
• --auto-approve — emitted when approvalMode: 'yolo'.

Session files

• Location: ~/.hermes/sessions/*.jsonl
• JSONL; standard parser.

Plugins

Plugin support: **no**. Use MCP servers for extensibility.

MCP Servers

amux mcp install hermes <mcp-server>
amux mcp list hermes

Registry: https://modelcontextprotocol.io

Capabilities

Tool calling with parallel calls, tool-call streaming, text streaming, 128k context.

Known limitations

• No thinking / reasoning streaming.
• No JSON mode or structured output.
• No image or file input.
• Config is YAML and global-only.
• Plugin install/list/uninstall via amux plugin is not supported.