Unfault for VS Code

Catches production-harming patterns with reasoned guidance for your code.

What It Does

Unfault analyzes your code for patterns that tend to cause problems once systems run in production - things like unbounded API calls, silent failure paths, and entangled responsibilities. Think of it as having a senior engineer review your work, pointing out decisions that compound into operational pain.

Features

Pattern detection: Analysis for production readiness across Python, JavaScript, TypeScript, Go, Rust, and Java
Inline guidance: Issues appear as diagnostics with severity levels and suggested fixes
Production readiness score: System-wide assessment of your production posture
Quick fixes: One-click application of proven patterns
Explanations: Clear reasoning for why patterns matter

Quick Start

Install: Download .vsix from releases → Extensions → Install from VSIX
Connect: Run unfault login in terminal (or paste API key when prompted)
Analyze: Save files or use Command Palette → "Unfault: Analyze"

Configuration

{
  "unfault.analysisMode": "local",     // local or cloud analysis
  "unfault.autoAnalyze": true,         // analyze on save
  "unfault.severityThreshold": "medium" // what issues to show
}

Daily Usage

In flow: Save files, fixes appear as inline diagnostics
Focused review: Command Palette → "Unfault: Analyze Current File"
System view: Command Palette → "Unfault: Analyze Entire Project"
Quick fixes: Click lightbulb on issues → "Apply Fix"

Supported Languages

Python, JavaScript, TypeScript, Go, Rust, Java

Common Issues

No issues: Lower severity threshold or check exclude patterns
Fixes won't apply: Use "Preview" first, resolve conflicts

What Happens To Your Code

Code is sent securely to Unfault for pattern analysis. Focus is on patterns and structure, not business logic. Nothing stored permanently except the generated diff for the proposed changes.

For detailed documentation, visit unfault.dev/docs

Built for developers who care about how things are built.