# Hermes Session Lens: Hermes Agent plugin

> Read-only observability for Hermes Desktop: what each session cost and why, its full trace, recurring tool failures, every profile at a glance, provider quotas and service balances, model comparison with cheaper-route…

Canonical: https://hermeswatcher.com/plugins/session-lens  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/session-lens  
Last updated in catalog: 2026-10-06

Read-only observability for Hermes Desktop: what each session cost and why, its full trace, recurring tool failures, every profile at a glance, provider quotas and service balances, model comparison with cheaper-route evidence, and instruction-rule grading.

## Good to know before installing

Reads every profile's state.db read-only plus agent logs, cron/gateway state, config.yaml and .env (key names, and the values of keys an adapter uses); with the credentials Hermes' own resolvers return, calls only each configured vendor's usage or balance endpoint (hosts listed in the README), sending Grok CLI client headers to cli-chat-proxy.grok.com and a Claude Code user-agent to api.anthropic.com; Hermes' resolvers may renew Hermes' Codex, Nous and xAI logins and, when Hermes holds no other Anthropic credential, Claude Code's login; runs the local monid CLI when installed; an Anthropic one-token Claude Haiku probe is off by default; writes no Hermes state itself and sends no session content anywhere.

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 session-lens
```

2. Said no? Turn it on later:

```bash
hermes plugins enable session-lens
```

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: Automation & multi-agent, Hermes Desktop add-ons
- Maintained by: abualnassr (Community)
- Needs: No API keys declared
- Requires Hermes: `>=0.21.5`
- Version: 0.53.2
- In the catalog since: 2026-10-06

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/session-lens)
- [Source code](https://github.com/abualnassr/hermes-session-lens/blob/69bc2b183fd376acf27256cd9b43f578a16388ae/README.md)
- [All plugins](https://hermeswatcher.com/plugins.md)

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