Agent Plugin
OpenClaw Diffs
Renders read-only text or patch comparisons as a gateway viewer, PNG, or PDF for an OpenClaw agent.
What is OpenClaw Diffs?
Diffs gives OpenClaw agents a read-only rendering tool for before-and-after text and unified patches. It can return a gateway-hosted viewer, a PNG or PDF artifact, or both, while preserving file summaries and configurable layout. A companion skill and prompt hook teach the agent how to present or send the result without turning the renderer into a file-editing capability.
Key capabilities
Three output modes
Creates a viewer, a PNG or PDF file, or both from the same comparison.
Patch-aware rendering
Accepts unified patches as well as arbitrary before-and-after text.
Bounded artifacts
Applies size, file-count, line-count, lifetime, and remote-viewer limits.
Use cases
Code review handoff
Present a readable comparison in a canvas without asking the recipient to inspect raw patch text.
Chat attachment
Render a PNG or PDF suitable for delivery through a messaging tool.
Documentation comparison
Compare two text revisions with syntax highlighting and line context.
Included components
Skills
Diff Presentation Guidance
Explains how to open viewer URLs and deliver rendered files.
Hooks
Prompt Context Hook
Adds stable tool guidance to system context before prompt construction.
Installation scope
- OpenClaw 2026.4.30 or newer
- A Chromium-compatible browser for PNG or PDF rendering
- Intentional remote-viewer configuration before exposing viewer URLs beyond loopback