groff.dev/

MatthewGroff.

VP of Technology at Elios

Software. Agents. MCP.
And the teams behind them.

Matthew Groff

About me.

I lead Forward Deployed Engineering
and Internal Tools Engineering @ Elios.

Full-stack Software Engineer. Developer of Agents, MCP, Web, and more.

Husband. Dog-dad. Theme-park enjoyer. Based in Orlando, Florida.

BusinessSlopBench: Which Models Write Documents You Could Actually Send?

I ran 25 models through eight business briefs, with and without my anti-slop rules. GPT-6 Astra was the best and least sloppy in my limited runs. The whole thing is open source, and I am asking someone to make it a real benchmark.

How should we estimate work when agents write the code?

My starting proposal for Attention-First Engineering: Day and Week outcomes, configurable daily ticket capacity, and human ownership of intent, understanding, and acceptance.

A Weekend With Jev: Cheaper Decisions, Real Tradeoffs

What I learned moving email classification from language models to Jev: fast typed decisions, imperfect eval results, and a tradeoff I am willing to try.

Building an AI Idea Generator With Grok Bot

How I am using Grok Bot, external search, and specific feedback to explore ideas. Includes a starter prompt, a worked example, and checks for memory and repetition.

Building Custom Agent Harnesses for Specific Domains Using Vercel's AI SDK

What is an agent harness? Learn how it works, build a custom support agent with Vercel AI SDK, and compare Sol and Luna with a runnable eval suite.