Correlation tracing

Skill ulpi-io/plugin-marketplace/plugins/aj-geddes/skills/correlation-tracing

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Install

npx -y skills add ulpi-io/plugin-marketplace --skill correlation-tracing

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What its author says it does

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Implement distributed tracing with correlation IDs, trace propagation, and span tracking across microservices. Use when debugging distributed systems, monitoring request flows, or implementing observability.

SKILL.md

2.6 KB, 532 tokens by cl100k_base, as published. Nobody here has run it

Overview

Implement correlation IDs and distributed tracing to track requests across multiple services and understand system behavior.

When to Use

Microservices architectures
Debugging distributed systems
Performance monitoring
Request flow visualization
Error tracking across services
Dependency analysis
Latency optimization

Quick Start

Minimal working example:

import express from "express";
import { v4 as uuidv4 } from "uuid";

// Async local storage for context
import { AsyncLocalStorage } from "async_hooks";

const traceContext = new AsyncLocalStorage<Map<string, any>>();

interface TraceContext {
  traceId: string;
  spanId: string;
  parentSpanId?: string;
  serviceName: string;
}

function correlationMiddleware(serviceName: string) {
  return (
    req: express.Request,
    res: express.Response,
    next: express.NextFunction,
  ) => {
    // Extract or generate trace ID
    const traceId = (req.headers["x-trace-id"] as string) || uuidv4();
    const parentSpanId = req.headers["x-span-id"] as string;
    const spanId = uuidv4();
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

Guide	Contents
Correlation ID Middleware (Express)	Correlation ID Middleware (Express)
OpenTelemetry Integration	OpenTelemetry Integration
Python Distributed Tracing	Python Distributed Tracing
Manual Trace Propagation	Manual Trace Propagation

Best Practices

✅ DO

Generate trace IDs at entry points
Propagate trace context across services
Include correlation IDs in logs
Use structured logging
Set appropriate span attributes
Sample traces in high-traffic systems
Monitor trace collection overhead
Implement context propagation

❌ DON'T

Skip trace propagation
Log without correlation context
Create too many spans
Store sensitive data in spans
Block on trace reporting
Forget error tracking