Lenspr
LensPR: Safe Vibecoding. Code Intelligence for AI Agents
Your AI writes code fast. LensPR makes sure it doesn't break things along the way.
The Problem
AI coding assistants (Claude Code, Cursor, Copilot) edit one file at a time. They don't see that the function they're refactoring has 15 callers across 8 files, zero tests, and handles authentication for every endpoint in your app. They change it, something breaks three files away, and you spend an hour figuring out what went wrong.
The Solution
LensPR parses your codebase into a dependency graph and gives your AI 60+ tools to understand the full picture before making changes. One MCP call returns the function's source, all callers, all callees, related tests, and impact severity. No more blind edits.
For Vibecoders
You build fast with AI. You ship. You don't want to slow down, but you also don't want your app to quietly fall apart. LensPR is your safety net:
- Health scoring (A to F): Think of it as a fitness tracker for your codebase. See at a glance whether things are improving or degrading
- Impact analysis: Before any change, the AI sees "this function has 15 callers, 0 tests, severity: CRITICAL" and adjusts its approach
- Dead code detection: Find functions that nothing calls anymore. Stop maintaining ghost code
- NFR checks: Flags missing error handling, hardcoded secrets, endpoints without authentication
- Architecture rules: Set boundaries like "frontend must not import backend directly" and they're enforced automatically on every edit
For Teams and Professional Developers
- Cross-language tracing: Connects React frontend to API routes to database queries in one graph. From button click to DB write, visible in a single call
- Git integration at function level: Blame, history, and commit scope per function, not per file
- Refactoring support: Rename a function and update every reference across the project. Multi-file atomic changes with rollback on failure
- Architecture enforcement: Define structural rules, violations are caught before code is committed
- Session memory: Persistent notes survive context resets. Your AI picks up exactly where it left off
What Makes It Different
LensPR is not a linter. A linter says "function is too long." LensPR says "function is too long AND 15 other functions depend on it AND it has 0 tests AND it handles authentication AND if it breaks, login, registration, and every admin page stop working."
Quick Start
- pip install 'lenspr[all]'
- lenspr init .
- lenspr setup .
Restart your IDE. Your AI now has access to lens_* tools. Everything runs locally.
Your code never leaves your machine.
Supports: Python, TypeScript, JavaScript
Works with: Claude Code, Cursor, and any MCP-compatible client
License: MIT
Server Config
{
"mcpServers": {
"lenspr": {
"command": "lenspr",
"args": [
"serve",
"."
],
"env": {}
}
}
}