Wednesday, Oct 14

The T-Shaped Dev | Petar Ivanov | Substack

The T-Shaped Dev | Petar Ivanov | Substack

Production-grade engineering for full-stack JavaScript developers who want to think like architects — React, Node, software architecture, and building real AI systems. No fluff, every week. Click to read The T-Shaped Dev, by Petar Ivanov, a Substack publication with tens of thousands of subscribers.

The T-Shaped Dev | Petar Ivanov | Substack · Oct 06, 2026

ARTIFICIAL INTELLIGENCE

Your AI Agent Has No Stack Trace. Here's How to Debug It Anyway.

Your AI Agent Has No Stack Trace. Here's How to Debug It Anyway.

How to make LLM apps debuggable: traces, correlation IDs, and the five numbers on the dashboard.

SVG IMAGE SVG IMAGEOPEN AI

The T-Shaped Dev | Petar Ivanov | Substack · Oct 03, 2026

SOFTWARE AND DATA ENGINEERING

Saved the Order, Lost the Event: Why You Need the Outbox Pattern

Saved the Order, Lost the Event: Why You Need the Outbox Pattern

Save-then-publish drops messages without a single error in your logs. Here's the outbox + inbox pair that stops it, in plain Postgres and Node.js.

SQSINNGEST

The T-Shaped Dev | Petar Ivanov | Substack · Sep 29, 2026

ARTIFICIAL INTELLIGENCE

6 MCP Servers That Make My Coding Agent Actually Useful in 2026

6 MCP Servers That Make My Coding Agent Actually Useful in 2026

The MCP servers I actually reach for when building features and shipping production apps.

GIT HUBPLAYWRIGHT MCP

The T-Shaped Dev | Petar Ivanov | Substack · Sep 24, 2026

ARTIFICIAL INTELLIGENCE

5 Resilience Patterns for AI Agents

5 Resilience Patterns for AI Agents

Checkpoints, scoped retries, idempotent tools, and run budgets: how production agents survive the failure math of 20-step loops.

The T-Shaped Dev | Petar Ivanov | Substack · Sep 18, 2026

MARKETING ADVERTISING AND SALES

7 Identity Patterns for AI Agents in Production

7 Identity Patterns for AI Agents in Production

Your Agent Isn't a User. Stop Authenticating It Like One.

MICROSOFT