# Llm Antidote: Hermes Agent plugin

> Runtime guardrails, behavioral evaluation, and signed fleet admission for Hermes Agent: a versioned capability policy that blocks or requires approval for model tool calls, paired synthetic behavioral evaluation with…

Canonical: https://hermeswatcher.com/plugins/llm-antidote  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/llm-antidote  
Last updated in catalog: 2026-10-13

Runtime guardrails, behavioral evaluation, and signed fleet admission for Hermes Agent: a versioned capability policy that blocks or requires approval for model tool calls, paired synthetic behavioral evaluation with no real side effects, and a signed local promotion gate that refuses a model whose evidence does not satisfy signed fleet policy. Hooks-only (no agent tools).

## Good to know before installing

Adds approval prompts to tool calls by default (balanced mode): every MCP, connector or other-plugin tool, memory and skill writes, file reads outside the working and temp directories, and network-capable terminal/code commands go to Hermes's approval prompt; strict mode blocks them instead, and opt-in enforced fleet mode blocks all tool calls until the served model name matches the admitted one. The user-run `hermes antidote eval run` command sends synthetic prompts (and the API key you name) to the OpenAI-compatible endpoint you pass, as billed model calls (default suite up to ~170 requests); `model inspect hf:` queries huggingface.co; `fleet keygen` writes unencrypted Ed25519 private keys (mode 0600) to paths you choose.

From the plugin's catalog listing.

## How to install

1. Install it. Hermes asks for any API keys it needs, then asks whether to turn it on.

```bash
hermes plugins install llm-antidote
```

2. Said no? Turn it on later:

```bash
hermes plugins enable llm-antidote
```

3. Restart Hermes so it loads the plugin.

Some plugins also need a sign-in or settings: see the official page. Memory plugins ask whether to become your memory provider instead. Steps follow the official plugins guide: https://hermes-agent.nousresearch.com/docs/user-guide/features/plugins

## Facts

- Category: Security & privacy
- Maintained by: GroveMinting (Community)
- Needs: No API keys declared
- Requires Hermes: `>=0.21.5`
- Version: 3.2.4
- In the catalog since: 2026-10-13

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/llm-antidote)
- [Source code](https://github.com/GroveMinting/llmAntidote#readme)
- [All plugins](https://hermeswatcher.com/plugins.md)

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