missing-rate-limiting-anti-pattern

Detect missing rate limiting on API endpoints to prevent resource exhaustion.

8|1|Updated Jan 19, 2026
One-click install
npx skills add https://github.com/igbuend/grimbard --skill missing-rate-limiting-anti-pattern
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: missing-rate-limiting-anti-pattern
Source: https://github.com/igbuend/grimbard/tree/main/skills/missing-rate-limiting-anti-pattern
Command: npx skills add https://github.com/igbuend/grimbard --skill missing-rate-limiting-anti-pattern

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill addresses the critical security vulnerability of applications failing to limit the frequency of incoming requests, which can lead to resource exhaustion, brute-force attacks, and denial-of-service.

Core Features & Use Cases

  • Endpoint Protection: Identifies and helps secure API endpoints, especially authentication and resource-intensive ones, against excessive requests.
  • Attack Mitigation: Provides strategies to prevent credential stuffing, brute-force attacks, and application-layer DoS.
  • Use Case: When reviewing an API, use this Skill to ensure that login attempts and data retrieval endpoints are protected by rate limits, preventing attackers from overwhelming the system.

Quick Start

Review the attached API endpoint code for missing rate limiting protections.

Frequently Asked Questions about missing-rate-limiting-anti-pattern

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

FAQPage Schema
How do I prevent brute-force attacks on API authentication endpoints?

Prevent brute-force attacks on API authentication endpoints by implementing IP-based and account-based throttling using Token Bucket or Sliding Window algorithms to limit excessive login requests and mitigate credential stuffing.

What is the best way to stop application-layer DoS attacks on public-facing services?

Stop application-layer DoS attacks on public-facing services by identifying resource exhaustion vulnerabilities and applying rate limiting to data-intensive APIs to prevent attackers from overwhelming the system.

How do I implement rate limiting for resource-intensive APIs?

Implement rate limiting for resource-intensive APIs by detecting missing request frequency limits and applying IP-based and account-based throttling mechanisms to secure vulnerable endpoints.

When do I need rate limiting to secure API endpoints?

You need rate limiting to secure API endpoints when public-facing services or authentication mechanisms lack request frequency controls, leaving them vulnerable to denial-of-service and credential stuffing attacks.

How does a Token Bucket algorithm prevent credential stuffing?

A Token Bucket algorithm prevents credential stuffing by controlling request flow through IP-based and account-based throttling, automatically rejecting excessive authentication attempts that exhaust available tokens.

What are the limitations of IP-based throttling for API security?

IP-based throttling for API security has limitations when attackers rotate IPs to bypass request limits, requiring combined account-based throttling strategies to effectively mitigate distributed brute-force and denial-of-service attacks.