Vestige

Vestige

Vestige is a Visual Studio Code extension that makes large, LLM-generated code changes reviewable by building local call-graphs and file-dependency graphs, surfacing blast-radius analysis, guided review cards, and LLM-generated summaries/explanations.

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#66 in Developer Tools (66 tools)
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Quick Overview

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What it does

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Vestige

Vestige is a VS Code extension that helps developers review large or AI-generated code changes by building local call graphs and file-dependency graphs and presenting an ordered, feature-level review workflow. It parses a repository locally (using bundled parsers) to compute blast radius deterministically from the static call/dependency graph and surfaces Repo Graph and Feature View visualizations in the VS Code activity bar. For review of external or bulk edits, Vestige opens a Splash Zone containing ordered review cards with inline/split diffs, LLM-generated one-line summaries, Explain actions, and accept/revert controls. The extension is intended for developers and code reviewers working inside Visual Studio Code who need deterministic, local impact analysis and assisted summaries/explanations for large changes.

Extension for Visual Studio Code - Feature-level code visualization for LLM-assisted review: call graphs and file dependency graphs, inside VS Code.

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Key Features

Local call-graph and file-dependency graph

Vestige scans and parses the opened folder locally to build a call graph and a file-dependency graph; impact analysis (blast radius) is computed from these graphs and runs 100% locally.

Repo Graph and Feature View

Two graph tabs (Repo Graph for function calls and Feature View for feature clusters) accessible via the Vestige icon or commands; click nodes to jump to related code.

Splash Zone review workflow

When external changes are detected, Vestige offers a Splash Zone that breaks a change into ordered review cards with a blast radius, inline/split diffs, one-line LLM summaries, Explain action, and accept/revert controls.

LLM-generated summaries and explanations

The extension uses an LLM (backend) to generate one-line change-review summaries and snippet explanations; these features send selected snippets or changed-code snippets to the backend.

Bundled parsers (tree-sitter WASM)

Parsers for supported languages ship with the extension (tree-sitter compiled to WebAssembly), so no additional installs are required.

Change detection and notifications

Vestige notifies when something changes outside the user's typing (AI agent, git pull, bulk edit) and can open the Splash Zone automatically via a setting (vestige.splashZone.autoOpen).

Cached analyses

Analyses are cached so reopening a graph or review does not re-run work that's already been done.

Language support (initial)

First-launch support for TypeScript/JavaScript, Python, Go, and Java; other file types treated as plain dependency-graph nodes.

Pricing

Free Tier Available

The extension is listed as free on the Visual Studio Marketplace.

Free

Free
  • VS Code extension available on the Visual Studio Marketplace
  • Local graph and blast-radius analysis
  • Access to Repo Graph and Feature View

Use Cases

Reviewing large or AI-generated diffs

Provide a focused, ordered review of bulk or LLM-produced changes so developers can understand what changed and decide whether to accept or revert.

Impact analysis before pushing changes

Compute blast radius deterministically from the static call/dependency graph to identify what a change can reach or potentially break.

Guided code-reading for complex edits

Surface entry points and a guided reading order for a change via graph nodes and review cards to help reviewers know where to start and what to inspect.

Integrations

OpenAI (via Vestige backend)

The Vestige backend (hosted on AWS) calls OpenAI to generate text for Explain Selection and change-review summaries.

AWS (hosting)

Vestige backend is hosted on AWS for features that generate LLM text.

Tree-sitter (bundled parsers)

The extension ships parsers compiled to WebAssembly (tree-sitter) for local parsing of supported languages.

Benefits

Deterministic, local blast-radius analysis based on parsed call/dependency graphs rather than LLM speculation.
Speeds up review of large or automated edits by splitting changes into actionable review cards with summaries and explanations.
Local parsing and analysis preserves structural privacy for most operations; only explicit explain/summary features send snippets to the backend.
Integration inside VS Code with clickable graphs, cached analyses, and commands to fit into developer workflows.

Limitations

Supported languages at first launch are limited to TypeScript/JavaScript, Python, Go, and Java; other file types are treated as plain nodes.
Single-root workspaces only — Vestige scans the first folder in the workspace.
Re-parsing on file change is not incremental at the AST level yet; large monorepos may experience slower rescans.
Feature View is a whole-repo analysis generated on demand and cached, not updated live.
Blast-radius is based on a static call graph; dynamic dispatch and reflection can escape the analysis.
Two features (Explain Selection and change-review summaries) send code snippets to the backend; otherwise call-graph and dependency analysis run locally.

Frequently Asked Questions

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Getting Started

  1. 1 Step 1: Install the Vestige extension from the Visual Studio Marketplace into VS Code.
  2. 2 Step 2: Open a folder (single-root workspace) containing supported languages (TypeScript/JavaScript, Python, Go, or Java).
  3. 3 Step 3: Run the command Vestige: Getting Started for the five-step walkthrough (map your project, read the graphs, review a change, judge the blast radius, explain & decide).

Support

docs

In-extension walkthrough via Vestige: Getting Started command and the Visual Studio Marketplace listing provides overview and version history.

contact

Contact via the extension's Visual Studio Marketplace page (Contact us link in footer).

API

Available: No

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