About
Justin Parker
AI Engineer & Open-Source Builder
Building tools to enrich our digital lives.
Who
I'm an engineer who has spent the last decade shipping software at the intersection of experimentation, user experience, and machine learning. Long before LLMs were a household term, I was wiring up statistical pipelines, running large-scale experimentation platforms, and building internal tools for teams that needed answers faster than dashboards could provide them.
eQuill Labs is the umbrella for the public side of that work — the corner of the internet where the tools, experiments, and half-formed ideas that I'd otherwise keep in a private notes folder get polished, documented, and shipped as open source.
I write code because I like making things that get used. Some of what's here started as a problem I hit once and wanted to solve properly; some started as a demo that grew teeth; some started because a tool I needed simply didn't exist yet.
What I Build
Small, composable tools that solve one problem well and compose cleanly with whatever comes next.
LLM Infrastructure
Semantic chunking, embedding pipelines, Bedrock proxies, and the small, boring glue code that makes larger systems work.
Semantic NLP
Topic extraction, chunk matching, and embedding utilities designed to be composable building blocks, not monoliths.
MCP Tooling
Servers and clients for the Model Context Protocol ecosystem, with an emphasis on SQLite, filesystem, and agent-friendly primitives.
Obsidian Ecosystem
Plugins that treat Obsidian as a serious authoring surface: banners, footers, spellchecking, embedding search, and more.
Family & Faith
Outside the terminal, I'm a husband to Stephanie and a dad to Ella and Lily. My family is the anchor behind every late-night push and weekend release.
My Christian faith shapes how I try to work — with honesty, care for the people using what I ship, and a bias toward building things that serve rather than extract. It's not the loudest part of this site, but it's the part that makes the rest of it worth doing.
Timeline
- 2019 First open-source releases under the jparkerweb banner
- 2022 Began focused work on experimentation tooling and LLM infrastructure
- 2024 Shipped semantic-chunking; the Obsidian plugin family hits its stride
- 2025 MCP tooling wave: mcp-sqlite, mcp-filesystem, and friends
- 2026 eQuill Labs v2: a ground-up redesign built to keep up with the output