# Hermes Session Diff: Hermes Agent plugin

> Persistent session file diffs, run comparisons, and individual edit history in Hermes Desktop.

Canonical: https://hermeswatcher.com/plugins/hermes-session-diff  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/hermes-session-diff  
Last updated in catalog: 2026-10-17

Persistent session file diffs, run comparisons, and individual edit history in Hermes Desktop.

## 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 hermes-session-diff
```

2. Said no? Turn it on later:

```bash
hermes plugins enable hermes-session-diff
```

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: Coding & developer tools, Hermes Desktop add-ons
- Maintained by: Adolanium (Community)
- Needs: No API keys declared
- Requires Hermes: `>=0.21.3`
- In the catalog since: 2026-09-18, updated 2026-10-17

## Links

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

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