sc-race-condition

Identify race conditions and TOCTOU vulnerabilities in concurrent code paths.

56|5|Updated Apr 8, 2026
One-click install
npx skills add https://github.com/ersinkoc/security-check --skill sc-race-condition
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: sc-race-condition
Source: https://github.com/ersinkoc/security-check/tree/main/skills/sc-race-condition
Command: npx skills add https://github.com/ersinkoc/security-check --skill sc-race-condition

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Race condition and TOCTOU vulnerabilities occur when concurrent operations on shared state lead to inconsistent or exploitable behavior; this Skill helps identify, analyze, and remediate such flaws.

Core Features & Use Cases

  • Discovery of race conditions in code paths, including database read-modify-write races, file-system TOCTOU, and non-atomic counters.
  • Safe remediation guidance using atomic operations, transactions, and locking where appropriate.
  • Use Case: auditors can scan a web service to surface potential TOCTOU issues and provide concrete fixes.

Quick Start

Describe a code sample or concurrency pattern to begin analysis; the system will outline vulnerabilities and remediation steps.

Frequently Asked Questions about sc-race-condition

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I detect race conditions in database read-modify-write operations?

To detect race conditions in database read-modify-write operations, provide a code sample of the concurrent path for analysis. The system identifies shared state modification flaws and outlines safe remediation steps using atomic operations or transactional safeguards.

What is a TOCTOU vulnerability and how do I find it in file system code?

A TOCTOU vulnerability occurs when a time-of-check to time-of-use gap in file system operations allows concurrent exploitation. Supply your file system code paths for pattern-based discovery to identify these flaws and receive actionable severity classifications.

How can I fix non-atomic counter vulnerabilities in asynchronous web services?

Fix non-atomic counter vulnerabilities in asynchronous web services by applying safe remediation guidance using atomic operations or locking where appropriate. Describe your concurrency pattern to begin analysis and receive concrete fixes for shared state modification.

Does this race condition analysis work for microservices and data processing jobs?

Yes, race condition analysis works for microservices and data processing jobs. It identifies concurrency vulnerabilities in any application with parallel or asynchronous operations where shared state is modified across databases, file systems, or in-memory counters.

What's the best way to scan a web service for TOCTOU issues?

The best way to scan a web service for TOCTOU issues is to describe a code sample or concurrency pattern to begin analysis. The system performs pattern-based discovery to surface potential vulnerabilities and provide concrete, safe remediation steps.

When should I use atomic operations vs transactions to remediate concurrency flaws?

Use atomic operations for in-memory counters and transactions for database read-modify-write races to remediate concurrency flaws. The system provides safe remediation guidance using atomic operations, transactions, and locking where appropriate for each specific vulnerability.