openclaw-plugin-markdown-strip

OpenClaw plugin that strips Markdown formatting from outgoing messages on plaintext channels.

LLMs like Claude produce Markdown by default — **bold**, _italic_, ### headers, `code`, - lists. On channels like iMessage that don't render Markdown, this results in ugly raw syntax in your messages. This plugin hooks into message_sending and removes all Markdown formatting before delivery.

Install

openclaw plugins install openclaw-plugin-markdown-strip

Configuration

By default, the plugin strips Markdown on iMessage only. To add more channels:

// ~/.openclaw/openclaw.json
{
  "plugins": {
    "entries": {
      "markdown-strip": {
        "enabled": true,
        "config": {
          "channels": ["imessage", "signal", "whatsapp"]
        }
      }
    }
  }
}

Available channel IDs: imessage, signal, whatsapp, telegram, discord, slack, sms, irc, msteams, mattermost, etc.

What gets stripped

Markdown	Result
**bold**	bold
_italic_	italic
`code`	code
```codeblock```	codeblock content
### Header	Header
[text](url)	text
	alt
> blockquote	blockquote
- list item	list item
~~strikethrough~~	strikethrough
---	(removed)
\*escaped\*	escaped

Ordered lists (1. item) are preserved as-is since they're readable in plaintext. Snake_case identifiers are not touched.

How it works

The plugin registers a message_sending hook that fires before each outgoing message. If the target channel is in the configured list, it runs the message through a series of regex replacements that strip Markdown syntax while preserving the readable text content.

Development

# Run tests
npm test

# Link for local development
openclaw plugins install -l .

License

MIT