# Tameru: Hermes Agent plugin

> Big tool outputs, kept small, nothing lost: old tool results shrink to the lines that matter and every distinct error, and the tameru_expand tool brings back the exact original.

Canonical: https://hermeswatcher.com/plugins/tameru  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/tameru  
Last updated in catalog: 2026-10-16

Big tool outputs, kept small, nothing lost: old tool results shrink to the lines that matter and every distinct error, and the tameru_expand tool brings back the exact original. Deterministic and local, with no LLM calls.

## Good to know before installing

Subclasses Hermes's built-in ContextCompressor and overrides its private prune/demote methods (checks their shape at startup and falls back to stock compaction when they change). Unless you set compression.proactive_prune_tokens yourself, turns on proactive tool-result pruning with a trigger scaled to the model's context window, and after each prune shortens Hermes's re-prune runway. Adds a model-callable tameru_expand tool that returns pruned tool output from memory or from this session's archive (web, browser and MCP output stays wrapped as untrusted data); complex regex greps run in a short-lived local Python child process. No network calls; the render log is off by default.

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 tameru
```

2. Said no? Turn it on later:

```bash
hermes plugins enable tameru
```

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: Cost, speed & monitoring
- Maintained by: 0xWhiteMage (Community)
- Needs: No API keys declared
- Adds tools: `tameru_expand`
- Works on: linux
- Requires Hermes: `>=0.21.7`
- Version: 1.5.0
- In the catalog since: 2026-10-12, updated 2026-10-16

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/tameru)
- [Source code](https://github.com/0xWhiteMage/hermes-tameru-plugin)
- [All plugins](https://hermeswatcher.com/plugins.md)

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