Specification
- Skill ID
- aj-geddes/useful-ai-prompts/concurrency-patterns
- Publisher
- aj-geddes
- Repository
- useful-ai-prompts
- Installs
- 0
- Files
- 9
- Synced
- Sep 23, 2026
How to use it
Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.
aj-geddes/useful-ai-prompts/concurrency-patternsInstalls these files- SKILL.md
- references/async-patterns-python-asyncio.md
- references/go-style-channels-simulation.md
- references/mutex-and-semaphore-typescript.md
- references/promise-pool-typescript.md
- references/python-threading-patterns.md
- references/worker-pool-nodejs.md
- scripts/validate-api.sh
- templates/api-scaffold.yaml
What this skill tells the agent
Concurrency Patterns
Table of Contents
- Overview
- When to Use
- Quick Start
- Reference Guides
- Best Practices
Overview
Implement safe concurrent code using proper synchronization primitives and patterns for parallel execution.
When to Use
- Multi-threaded applications
- Parallel data processing
- Race condition prevention
- Resource pooling
- Task coordination
- High-performance systems
- Async operations
- Worker pools
Quick Start
Minimal working example:
class PromisePool {
private queue: Array<() => Promise<any>> = [];
private active = 0;
constructor(private concurrency: number) {}
async add<T>(fn: () => Promise<T>): Promise<T> {
while (this.active >= this.concurrency) {
await this.waitForSlot();
}
this.active++;
try {
return await fn();
} finally {
this.active--;
}
}
private async waitForSlot(): Promise<void> {
return new Promise((resolve) => {
const checkSlot = () => {
if (this.active < this.concurrency) {
resolve();
// ... (see reference guides for full implementation)Reference Guides
Detailed implementations in the references/ directory:
| Guide | Contents |
|---|---|
| Promise Pool (TypeScript) | Promise Pool (TypeScript) |
| Mutex and Semaphore (TypeScript) | Mutex and Semaphore (TypeScript) |
| Worker Pool (Node.js) | Worker Pool (Node.js) |
| Python Threading Patterns | Python Threading Patterns |
| Async Patterns (Python asyncio) | Async Patterns (Python asyncio) |
| Go-Style Channels (Simulation) | Go-Style Channels (Simulation) |
Best Practices
✅ DO
- Use proper synchronization primitives
- Limit concurrency to avoid resource exhaustion
- Handle errors in concurrent operations
- Use immutable data when possible
- Test concurrent code thoroughly
- Profile concurrent performance
- Document thread-safety guarantees
❌ DON'T
- Share mutable state without synchronization
- Use sleep/polling for coordination
- Create unlimited threads/workers
- Ignore race conditions
- Block event loops in async code
- Forget to clean up resources
More from aj-geddes
Use this skill in a project
Open any RiverX project, search the Skills panel for aj-geddes/useful-ai-prompts/concurrency-patterns, and install it in one click.