CodePulse

Instant, safe code-quality fixes for Python, JavaScript/TypeScript, and Java — right in VS Code.

CodePulse detects 36 rule violations, auto-fixes the safe ones, and flags the rest with severity-coloured underlines. Sign in once, pick how you want fixes applied, and you're done — no manual configuration required.

Features


Sign in once	Same account as the CodePulse web dashboard — no manual API setup
Choose your fix mode	Auto-fix on save, preview-and-approve on save, or fully manual — your call, changeable any time
Diff preview	`Cmd/Ctrl+Shift+D` — old code and new code side by side, nothing changes until you approve it
Plain-English status panel	Sign-in state, fix mode, and the last thing CodePulse did — no console required
Health score	Per-file and project-wide, bucketed Good / Fair / Poor like a quality gate
Explorer badges	Files with pending issues or session fixes get a small marker, at a glance
Inline CodeLens	"N CodePulse issues · Fix all" above any file with active issues
Severity colours	🔴 CRITICAL (red) · 🟡 WARNING (yellow) · 🔵 INFO (blue) underlines
36 rules	Python · JS/TypeScript · Java — see Rule Catalog
Rule suppression	`# codepulse: ignore[P-ID-01]` to suppress on one line
Per-project config	`.codepulserc` to disable rules or override severities
Project scan	Scan the whole workspace at once with a cancellable progress bar

Quick Start

Install this extension from the Marketplace — it works immediately, no setup required.
Open any .py, .ts, .js, or .java file and run CodePulse: Preview fixes (or just start editing) — you'll be asked to sign in.
Right after signing in, CodePulse asks how you want fixes applied and walks you through the basics in a short "Get Started" tour.
From then on, check the CodePulse panel in the sidebar any time for your health score, pending issues, and session log.

Self-hosting your own backend instead of the public CodePulse API? Set codepulse.apiUrl in Settings — see CONTRIBUTING.md.

Commands

Command	Shortcut	Description
`CodePulse: Sign In` / `Sign Out`	—	Manage your session
`CodePulse: Choose Fix Mode`	—	Auto-fix / preview-on-save / manual
`CodePulse: Fix current file`	`Ctrl+Shift+P` / `Cmd+Shift+P`	Apply all safe auto-fixes
`CodePulse: Preview fixes (diff view)`	`Ctrl+Shift+D` / `Cmd+Shift+D`	Show diff before applying
`CodePulse: Scan Project`	Command Palette	Scan all files, show health score
`CodePulse: Extract Secrets`	Command Palette	Move hardcoded secrets to `.env`
`CodePulse: Check API Contracts`	Command Palette	Detect route/method drift

Right-click any supported file or folder to access these from the context menu.

Supported Languages & Rules

Python (18 rules)

P-EX-01 Bare except clause
P-ID-01 == None → is None
P-PY-02 datetime.now() without timezone
P-PY-01 assert in production code
P-MD-01 Mutable default arguments
P-IO-01 File open without with
P-NM-01 Magic numbers
… and 11 more — see Rule Catalog

JavaScript / TypeScript (12 rules)

JS-EQ-01 == coercion → ===
JS-PR-01 parseInt without radix
JS-NEW-04 @ts-ignore abuse
JS-NEW-06 Exported functions missing return types
… and 8 more

Java (12 rules)

JV-EQ-01 == on String
JV-EX-01 Empty catch block
JV-NEW-06 new BigDecimal(double)
JV-NEW-03 synchronized on non-final field
… and 8 more

Configuration

// settings.json
{
  "codepulse.fixMode": "previewOnSave", // "auto" | "previewOnSave" | "manual"
  "codepulse.apiUrl": "https://your-api-url.amazonaws.com", // only needed if self-hosting
  "codepulse.rules": {
    "P-ST-07": "off",     // disable long-function warning
    "P-CF-01": "info"     // downgrade to INFO
  }
}

Or use a .codepulserc file in your project root:

{
  "rules": {
    "P-ST-07": "off",
    "P-CF-01": "info"
  },
  "ignorePatterns": ["migrations/", "generated/"]
}

Rule Suppression

Suppress on a single line:

return datetime.now()  # codepulse: ignore[P-PY-02]

Suppress all rules on a line:

assert user is not None  # codepulse: ignore

Requirements

VS Code 1.95+
A CodePulse account (sign-in prompt appears automatically on first use)

Privacy

CodePulse processes source code in-memory inside AWS Lambda (eu-north-1). No source code is stored, logged, or retained after the response returns.

Release Notes

See CHANGELOG.md for the full history.

CodePulse Fixer

ShyamSrinivasan