filestab

When you manage a project with jj or git, bouncing between your editor to read a diff and then a separate browser tab to preview a Markdown file breaks focus. filestab adds a read-only Files tab directly to the dsh web GUI so you can go from reviewing changes to previewing a rendered file without ever leaving the harness.

Three capabilities anchor the experience. Live change tracking covers both jj and git-only repos, rolling up modifications per folder and marking each file with M or A status. A side-by-side diff view lets you inspect any point in history; picking a commit renders its exact tree, with binary changes shown as compact cards. File preview handles Markdown (task lists, syntax-highlighted fences, mermaid diagrams), source code with highlighting, and HTML, images, or PDFs inside a sealed iframe.

It fits developers who spend a lot of time reviewing working-tree changes inside the harness, especially those who prefer jj local stacks and want diffs and previews in one place. The plugin is strictly read-only, and every file-derived render runs in an opaque-origin sandbox, so nothing in your workspace is ever modified.