Agent skill · software engineering · sickn33
logic-lens
AI-powered Claude Code skill that performs deep code review using formal logic and reasoning frameworks to detect bugs, anti-patterns, and security risks beyond what linters catch.
Why this skill is useful
Adds a comprehensive logic analysis tool that identifies complex bugs and security risks beyond standard linters, enhancing code review capabilities.
What it needs
Requires claude installed locally. About 3k tokens when loaded. Last updated 2026-08-07. 44,571 stars on the source repository.
What this skill does
Logic Lens Overview Logic Lens is a Claude Code skill that performs deep, logic-driven code review using formal reasoning frameworks. Unlike traditional linters that check syntax and style, Logic Lens analyzes your code for logical errors, race conditions, security vulnerabilities, type mismatches, and algorithmic flaws that only appear when you reason through the code's behavior. Powered by structured AI analysis, Logic Lens applies systematic logical inspection across 9 risk categories: null/undefined handling, type safety, concurrency, resource management, security injection, boundary conditions, algorithm correctness, state management, and API contract violations. When to Use This Skill Use when you want a thorough logic review before merging a PR Use when a bug seems hard to find and standard linters aren't helping Use when reviewing security-sensitive code paths (auth, payments, file access) Use when refactoring complex business logic Use when onboarding to a new codebase and need to understand risk areas How It Works Logic Lens uses Claude Code's reasoning capabilities to: 1. Parse code structure and build a mental model of data flow 2. Apply formal logic checks across 9 risk categories 3. Trace execution paths for edge cases and boundary conditions 4. Identify security anti-patterns (injection, privilege escalation, data leakage) 5. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills sickn33/logic-lens--2ae1c8