sem for VS Code

Entity-level semantic diffs, blame, impact analysis, and dependency graphs inside VS Code. Powered by sem.

Features

Semantic Diff Sidebar — See what changed at the entity level (functions, classes, methods), not just lines. Changes grouped by file with add/modify/delete/move icons. Click to navigate.

Gutter Decorations — Colored bars in the gutter showing which entities changed. Green for added, yellow for modified, red for deleted.

Entity Blame — CodeLens showing author, date, and commit message at the start of each function/class/method.

Impact Analysis — Place your cursor on any entity, run "Sem: Impact Analysis", and see every entity that would be affected if it changed. Uses the full cross-file dependency graph.

Dependency Graph — Interactive force-directed graph of your codebase's entity dependencies. Zoom, pan, click to explore.

Requirements

Install the sem CLI:

brew install ataraxy-labs/tap/sem

Or build from source:

cargo install sem-cli

Settings

Setting	Default	Description
`sem.binaryPath`	`"sem"`	Path to the sem binary
`sem.blame.enabled`	`true`	Show entity blame CodeLens
`sem.gutter.enabled`	`true`	Show gutter decorations
`sem.diff.autoRefresh`	`true`	Refresh diff on file save

Commands

Sem: Refresh Semantic Diff — Force refresh the diff sidebar
Sem: Impact Analysis — Analyze impact of entity at cursor
Sem: Show Dependency Graph — Open interactive dependency graph
Sem: Toggle Entity Blame — Toggle blame CodeLens on/off

Sem: Semantic Version Control

Ataraxy Labs

sem for VS Code

Features

Requirements

Settings

Commands