Detect structural technical debt in TypeScript and JavaScript, directly in VS Code. drift uses a custom AST engine to score your files from 0 to 100 and surface issues as inline diagnostics — no config needed.
Features
Inline diagnostics — issues appear as red/yellow squiggles, just like TypeScript errors
Problems panel — all drift issues listed alongside compiler errors
Drift Issues panel — sidebar TreeView with files sorted by score, click any issue to jump to the line
Status bar — drift 74/100 · 3 issues always visible, color-coded by severity
On-save analysis — runs automatically when you save a .ts, .tsx, .js, or .jsx file
Workspace scan — Drift: Scan Workspace command to analyze all files at once
What drift detects
Rule
Severity
What it detects
large-file
error
Files over threshold lines
large-function
error
Functions over threshold lines
high-complexity
error
Cyclomatic complexity too high
duplicate-function-name
error
Same function name in multiple files
debug-leftover
warning
console.* calls and TODO/FIXME markers
catch-swallow
warning
Empty catch blocks
deep-nesting
warning
Deeply nested control flow
any-abuse
warning
Excessive use of any
too-many-params
warning
Functions with too many parameters
dead-code
warning
Unused imports and variables
high-coupling
warning
Too many imports in a single file
promise-style-mix
warning
Mixed Promise and async/await styles
comment-contradiction
warning
Comments that contradict the code
no-return-type
info
Missing return type annotations
magic-number
info
Hardcoded numbers without named constants
Commands
Command
Description
Drift: Scan Workspace
Analyze all TS/JS files in the workspace
Drift: Clear Diagnostics
Remove all drift diagnostics
Settings
Setting
Default
Description
drift.enable
true
Enable automatic analysis on save
drift.minSeverity
"info"
Minimum severity to show (error, warning, info)
CLI
drift also ships as a standalone CLI with HTML reports, CI integration, git blame, and trend analysis.
