Document Viewer

Tasuki lets you read documentation alongside the diff — useful for checking if implementation matches the spec.

Split Mode

In Split display mode, the screen is divided into two panes:

• Left: Diff viewer
• Right: Document pane

Click a document in the sidebar's Documents section to display it in the right pane.

Viewer Mode

The Viewer tab in the toolbar switches to a documentation-focused layout:

• Left: Full-width Markdown viewer
• Right: Terminal pane

This mode hides diff-related controls and the Changed Files section, letting you focus on reading.

Supported Content

Markdown

Full GitHub-Flavored Markdown rendering:

• Headings, lists, blockquotes
• Tables
• Code blocks with syntax highlighting (powered by Shiki)
• Task lists
• Links and images

Mermaid Diagrams

Mermaid diagrams render as interactive SVGs:

• Hover to reveal a zoom button
• Click zoom to open a fullscreen modal
• Use +/− buttons or mouse wheel to zoom in/out
• Drag to pan
• Click the percentage display to reset zoom
• Press Escape or click outside to close

Design Docs

Design documents from ~/.claude/designs/{repo-name}/ appear in the sidebar under Design Docs. These are read-only and useful for referencing architectural decisions during review.

External Folders

In the Tauri desktop app, you can add external folders:

1. Click Add Folder in the sidebar
2. Select a folder containing .md files
3. The folder appears as a new sidebar section
4. Click any file to preview it
5. Click ✕ to remove the folder

Multiple folders can be added independently.

Layout

• The divider between panes is draggable — resize by dragging the border
• The document pane has a max width of 900px in Split mode (diff takes priority)
• In Viewer mode, the terminal pane has the max width instead (documents take priority)