# Redline: Hermes Agent plugin

> Guided Markdown and source-code review in Hermes Desktop — annotate passages or line-numbered code in a docked pane and send comment/question/change-request batches back to the agent.

Canonical: https://hermeswatcher.com/plugins/redline  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/redline  
Last updated in catalog: 2026-10-12

Guided Markdown and source-code review in Hermes Desktop — annotate passages or line-numbered code in a docked pane and send comment/question/change-request batches back to the agent; cards are offered automatically on delivered Markdown.

## Good to know before installing

Reads any user-selected local .md/.markdown or source-code path (.py .sh .js .ts .tsx .c .h .cpp .go .rs .rb .yaml .yml .json .toml .sql, so config files such as config.yaml or auth.json are shown if you open them) up to 1 MB (symlink-resolved), writes only a <file>.redline.json sidecar beside it, and in Hermes Desktop chats the transform_llm_output hook appends a ::redline directive line to qualifying final agent responses; syntax highlighting uses Pygments in the local gateway host with plain-text fallback; no network beyond the local gateway, no credentials, no telemetry, no subprocesses; the pane polls the local backend every 3 s while open.

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 redline
```

2. Said no? Turn it on later:

```bash
hermes plugins enable redline
```

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: silentpr0 (Community)
- Needs: No API keys declared
- Requires Hermes: `>=0.21.5`
- Version: 0.2.0
- In the catalog since: 2026-10-09, updated 2026-10-12

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/redline)
- [Source code](https://github.com/silentpr0/hermes-redline)
- [All plugins](https://hermeswatcher.com/plugins.md)

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