# Provenance Gate: Hermes Agent plugin

> Flags memory and skill_manage writes that state a user decision ("the user decided ...", "用户决定 ...") without the user's own words: each such sentence needs a quote that appears verbatim in text the user typed in this…

Canonical: https://hermeswatcher.com/plugins/provenance-gate  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/provenance-gate  
Last updated in catalog: 2026-10-25

Flags memory and skill_manage writes that state a user decision ("the user decided ...", "用户决定 ...") without the user's own words: each such sentence needs a quote that appears verbatim in text the user typed in this session, shares key words with the decision and does not drop a negation. A patch is checked by the text it produces. Observe mode (the default) records flagged writes and `hermes provenance-gate report` lists them; block mode refuses them and tells the model how to fix the write. Measured on an independent blind set of 133 lines: precision 1.000, recall 0.694.

## Good to know before installing

Two hooks (pre_llm_call, pre_tool_call); keeps a local copy of the text the user types, with its sender_id and session link, and an evidence log of checked claims under plugin-data/provenance-gate (30-day default retention, `hermes provenance-gate purge`); reads MEMORY.md, USER.md and skill files to reproduce what a patch produces; no network, no credentials, never asks for approval.

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 provenance-gate
```

2. Said no? Turn it on later:

```bash
hermes plugins enable provenance-gate
```

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: Memory & notes
- Maintained by: simin-yuan (Community)
- Needs: No API keys declared
- Requires Hermes: `>=0.22.2`
- Version: 0.1.3
- In the catalog since: 2026-10-20, updated 2026-10-25

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/provenance-gate)
- [Source code](https://github.com/simin-yuan/hermes-provenance-gate#readme)
- [All plugins](https://hermeswatcher.com/plugins.md)

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