PerfGuard -- Performance Anti-Pattern Scanner

PerfGuard scans your codebase for performance anti-patterns including N+1 queries, synchronous I/O in async code, missing pagination, unbounded loops, memory leaks, and inefficient serialization. It supports Python (Django, Flask, FastAPI, SQLAlchemy), JavaScript/TypeScript (Node.js, React, Express), Ruby (Rails), and Java (JPA/Hibernate). All scanning happens locally using regex-based pattern matching -- no code is sent to external servers.

Commands

Free Tier (No license required)

perfguard scan [file|directory]

One-shot performance anti-pattern scan.

How to execute:

bash "<SKILL_DIR>/scripts/perfguard.sh" scan [target]