opencode-trailing-whitespace

OpenCode plugin that automatically removes trailing whitespace from code before writing to disk.

Installation

bun add opencode-trailing-whitespace

Usage

Add to your config.json:

{
  "plugin": ["opencode-trailing-whitespace"]
}

Or copy to .opencode/plugin/ directory for local use.

Behavior

Intercepts the following tools and cleans trailing whitespace:

| Tool | Cleaned Field | | ------- | ------------------------ | | write | content | | edit | newString | | patch | Added lines (+ prefix) |

Final newlines are preserved when present in the original content.

Toggle Feature

The plugin provides a tool that allows the model (or user via the model) to temporarily disable trailing whitespace removal:

| Tool | Description | | ---- | ----------- | | trailing_whitespace_toggle | Enable or disable the feature by setting enabled to true or false |

Example: Ask the model to "disable trailing whitespace removal" and it will call the toggle tool with enabled: false.