Free VS Code Extension

The AI writes
the code.
You need to understand it.

Cograph renders your project as a live call graph inside VS Code — updating in real-time as AI agents rewrite your codebase. Making the invisible visible.

Python · TypeScript · JavaScript
|Free to install
CoGraph: Call Graph — project
The Problem

AI writes the code.
Can you understand it?

Copilot, Cursor, Claude — AI coding agents are shipping features at unprecedented speed. But every new function, every refactor, every generated file makes the call graph harder to hold in your head.

The mental model you had an hour ago is already out of date. Code review catches bugs, not architecture drift. And onboarding a new engineer into an AI-accelerated codebase? Good luck.

40%
of new production code is AI-assisted — and growing. The humans responsible for that code need tools that keep up.
Can't see what calls what after an AI refactor
Architecture drift goes unnoticed until it's a crisis
New engineers lost in unfamiliar, AI-generated code
Features

Everything you need to see
how your code actually works

Function Relationships

See every call and dependency across your entire project. Instantly understand what calls what — and trace the full chain from any function.

Git Integration

Highlight what changed between commits. See exactly which nodes and edges were added, removed, or modified — diff your architecture, not just your code.

OOP Class Overlay

Toggle class boundaries over the graph. Methods group visually by their parent class — perfect for object-oriented Python and TypeScript codebases.

Folder Structure

Color-code nodes by directory. Spot cross-module dependencies at a glance and identify coupling between packages before it becomes technical debt.

Graph Intelligence

Premium

AI-powered insights surface hidden complexity, dead code, and dependency cycles. Ask natural language questions about your architecture.

How It Works

Zero config.
Instant visibility.

01

Open any Python, TypeScript, or JavaScript project

No configuration files. No setup wizards. Just open your project folder in VS Code like you always do.

02

Run CoGraph: Visualize Project

Hit ⌘⇧P (or Ctrl+Shift+P) and run the command. Cograph parses your project and builds the call graph in seconds.

⌘⇧P> CoGraph: Visualize Project
03

Explore the live call graph

Pan, zoom, click nodes to inspect function details. The graph updates automatically as you — or your AI agent — changes the code.

Supported languages

Python
TypeScript
JavaScript
More coming
See It In Action

Your codebase,
finally visible.

Call graph — full project view

Call graph — full project view

Full call graph of the NumPy repository

NumPy — instant overview of 2 000+ functions

Use Cases

Built for every developer
on AI-accelerated teams

Solo developers

Ship faster, break less

When you're the entire team, architectural clarity isn't a nice-to-have — it's the difference between a fast iteration loop and debugging for hours. Cograph keeps your mental model current without effort.

  • Understand AI-generated code before shipping it
  • Spot dead code and orphaned functions
  • Onboard faster to unfamiliar repos
Engineering teams

Code review that sees the whole picture

PR reviews catch logic bugs. Cograph catches architecture bugs. Share graph snapshots in reviews to communicate intent, not just code.

  • Review architectural impact of PRs
  • Identify unexpected cross-module dependencies
  • Share graph state as team documentation
Tech leads & managers

Architectural oversight, not micromanagement

Get a bird's-eye view of how your codebase is evolving — especially in high-velocity AI-driven sprints — without interrupting engineers or reading every line of code.

  • Track architecture health over time
  • Spot coupling and complexity spikes early
  • Communicate system structure to stakeholders
Pricing

Start for free.
No config, no accounts.

Core graph visualization is free forever. Premium features are coming — join the waitlist to be notified.

FreeAvailable now
$0
Forever free
  • Full call graph visualization
  • Python, TypeScript & JavaScript
  • OOP class overlay
  • Folder structure coloring
  • Git commit diff view
  • Pan, zoom & node search
  • Real-time graph updates
Install for VS Code
Premium
Coming soon
Notify me
  • Everything in Free
  • Graph Intelligence (AI insights)
  • Natural language graph queries
  • Multi-agent activity tracking
  • Team collaboration & sharing
  • API access for CI/CD pipelines
  • Priority support
Get notified
Get started

Start for free.
No config, no accounts.

Install in seconds. Visualize your first call graph before you finish your coffee.

Install for VS Code — it's free

Works with Python · TypeScript · JavaScript