VAST
Now in Beta

Catch risks before release.

Connect your GitHub repo and get a risk map of your codebase — architecture, risk per file, and what changed since your last commit.

Connect your repository →View a sample report

Works with any codebase

Scrolling logos: Python, TypeScript, Go, Docker, and Kubernetes.

HOW IT WORKS

From repo to risk report in minutes

Connect your GitHub repository. Vast maps the dependencies and scores the risk.

vast.app/impact/my-repo

Authorize once to scan your repository

Impact summary

  • Change risk

    Medium

  • Reach

    3 files

  • Notable risk

    exported function signature changed

Directly affected(3)

  • src/api/auth.ts

  • src/lib/payments.ts

  • src/routes/checkout.ts

What to check

  • Contract tests

    Verify callers still match the updated export.

  • Payment flow

    Run checkout integration tests before release.

FEATURES

Everything you need to understand your codebase

See your architecture

An interactive map of your repo—every file, every connection. Spot god files, cycles, and dead ends at a glance.

React Flowdagre

Fix-ready for your AI tool

Copy a ready-made summary of the risk and impact, paste it into Cursor, Copilot, or Claude, and let it fix the fragile part.

Impact Analysis

See exactly what changed since any previous commit, and everything it affects downstream.

Risk Detection

AST-based analysis flags exported function changes as high risk and internal helpers as low risk—automatically.

Change Explanation

Compare two scans and get a plain-English summary of what actually changed.

Timeline & History

Every scan, every delta, per repository.

TRY IT NOW

See a real risk call, no signup

Pick a sample AI-generated change and see exactly what Vast would flag.

Risk call examples

Pick a sample AI-generated change.

Impact summary

  • Change risk

    High

  • Reach

    6 files

  • Notable risk

    JWT validation logic refactored — protected routes depend on this path

Directly affected(3)

  • src/middleware/auth.ts

  • src/api/routes.ts

  • src/lib/session.ts

What to check

  • Auth integration tests

    Confirm tokens still validate across all protected routes.

  • Session handling

    Verify refresh and logout flows after middleware changes.

Architecture examples

Same interactive graph view as your project dashboard.

vast.app/graph/docker-compose

Select an example manifest to visualize.

Built for people shipping AI-assisted code

Understand code you didn't fully write

Whether it came from Cursor, Copilot, or a late-night session—see what's actually fragile in your repo.

Catch silent breaking changes

Vast automatically flags exported function signature changes as high risk—before you find out the hard way.

Explain it to your team

Turn a confusing scan-to-scan diff into a plain-English summary anyone on the team can read.

Hand the fix to your AI agent

Copy a ready-made risk summary straight into Cursor, Copilot, or Claude and let it fix the fragile part fast.

Connect your repo, we'll take it from there

Works with any GitHub repository — no matter how the code was written.

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Ship AI-generated code with confidence

Connect your repo and see your first risk report in under 2 minutes.

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