> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prisminference.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Hermes

> Install Prism's model-provider plugin in Hermes Agent.

If you have no key, ask the workspace owner for an existing `PRISM_API_KEY`.

```bash theme={"theme":{"light":"github-light","dark":"github-dark"}}
hermes plugins install prismhq/hermes-prism-provider
hermes plugins enable prism --no-allow-tool-override
hermes config set PRISM_API_KEY "$PRISM_API_KEY"
hermes config set model.provider prism
hermes config set model.context_length 1000000
```

Select `prism:deepseek-v4.1-flash` at the picker.

* `plugins enable` is only needed when the installer's "Enable now?" prompt is
  skipped, which is always the case for agents without a terminal.
* `model.context_length 1000000` is required: Hermes otherwise treats Prism's 1M
  window as 128k and compacts early.
* `hermes gateway restart` is only needed if you run the gateway.

Verify with `hermes status --all`, which redacts secrets. Never use
`hermes config get` for model settings; it prints the raw API key to stdout.

To remove: `hermes plugins disable prism` then
`hermes plugins remove hermes-prism-provider`.


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