John Pangasest. 1997
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Journal

Notes from the workbench.

Long-form thinking on agentic AI tools, software engineering, Mozilla, business workflows, and the parts I'm still figuring out.

Field notes

Posts

03

Topics

07

Latest

Mar 2026

Pace

Long-form

Latest entry

14

Mar 2026

#Agentic AI#Software Engineering#Research

Prompting Matters: What 18 Months of LLM Code Generation Taught Me

A long, opinionated tour through the prompting strategies that actually move the needle when you use AI agents to reason about class-level code, and the ones that look smart on paper but quietly fail.

8 minRead latest

Topics

Agentic AISoftware EngineeringResearchMozillaQAOutreachyML

Essays, retrospectives, and working notes from the research and engineering side of the site.

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01Mar 14, 2026

Prompting Matters: What 18 Months of LLM Code Generation Taught Me

A long, opinionated tour through the prompting strategies that actually move the needle when you use AI agents to reason about class-level code, and the ones that look smart on paper but quietly fail.

Mar 14, 20268 min
Read
02Nov 2, 2025

Bridging Test Plans at Firefox with a Small, Boring Pipeline

How we wired an agentic GPT-4 workflow into Firefox QA without rewriting the workflow. The boring parts mattered more than the model.

Nov 2, 20256 min
Read
03Apr 8, 2024

Five Months Inside Bugbug

An honest retro of my Outreachy internship at Mozilla, shipping accessibility-tag and spam-detection models into the Bugzilla pipeline.

Apr 8, 20245 min
Read

John Pangas

Calgary, Alberta · Agentic AI for software and complex business work.

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