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# observability

Gaining deep insights into system behavior through metrics, logs, and traces.

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The 2am call that dropped before the user finished talking, and the week I spent finding out why my tracer never saw it

The 2am call that dropped before the user finished talking, and the week I spent finding out why my tracer never saw it

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5 min read
Observability Practices in Action: Instrumenting a Node.js API with Metrics, Logs, and Traces

Observability Practices in Action: Instrumenting a Node.js API with Metrics, Logs, and Traces

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6 min read
Can you build observability ingestion on S3 alone — no Kafka, no disks, no coordination layer?

Can you build observability ingestion on S3 alone — no Kafka, no disks, no coordination layer?

9 min read
OpenTelemetry Tells You What Your Agent Did. Not Whether It Was OK.

OpenTelemetry Tells You What Your Agent Did. Not Whether It Was OK.

3 min read
Log Management at Scale: How We Cut Costs 70% Without Losing Signal

Log Management at Scale: How We Cut Costs 70% Without Losing Signal

2 min read
Your Agent's Retries Are Double-Charging Your Users (and Every Eval Is Green)

Your Agent's Retries Are Double-Charging Your Users (and Every Eval Is Green)

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1
5 min read
Tracing, Prometheus metrics, and structured logs with two decorators: Fitz vs the OpenTelemetry setup in FastAPI

Tracing, Prometheus metrics, and structured logs with two decorators: Fitz vs the OpenTelemetry setup in FastAPI

8 min read
Tracing, métricas Prometheus y logs estructurados con dos decoradores: Fitz vs el setup de OpenTelemetry en FastAPI

Tracing, métricas Prometheus y logs estructurados con dos decoradores: Fitz vs el setup de OpenTelemetry en FastAPI

8 min read
Your Next.js Deploy Was Green. Did Signup Get Worse?

Your Next.js Deploy Was Green. Did Signup Get Worse?

6 min read
Why Your AI Observability Stack Is Missing the Most Important Metric

Why Your AI Observability Stack Is Missing the Most Important Metric

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1
3 min read
Real-Time Monitoring for AI Agents: Beyond Log Streaming

Real-Time Monitoring for AI Agents: Beyond Log Streaming

1 min read
Distributed Tracing: The Missing Piece of Your Observability Stack

Distributed Tracing: The Missing Piece of Your Observability Stack

3 min read
SaaS Monitoring and Observability: Logs, Metrics, and Traces

SaaS Monitoring and Observability: Logs, Metrics, and Traces

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1
5 min read
The Golden Signals: A Practical Implementation Guide

The Golden Signals: A Practical Implementation Guide

2 min read
Your Model-as-Judge Doesn't Belong in the Hot Path

Your Model-as-Judge Doesn't Belong in the Hot Path

1
9 min read
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