Personal projects · research · notes

Tools, experiments
& things I’m building.

I’m Daniel Halwell. I build agent systems, Rust developer tools and experimental models, with a background in chemistry.

Read CVDownload CVAbout Daniel →
11 results

Projects

Agent-Gantry & ADAPT-AgentTool selection, controlled execution and policy boundaries for agent systems.Libraries & experimentsCodypendentA local-first coding workspace with a shared Rust daemon, terminal and desktop clients.Active developmentLanguage model experimentsRecursive architectures, adaptive computation and coding-model fine-tuning.Research in progressScientific machine learningConnecting chemistry, molecular graphs and spectral modelling.Research in progressShallow Research Code AssistantA research-to-code workflow with Gradio, MCP and Modal sandboxes.Hackathon projectHalwellOSAn explorable portfolio with one content source for a desktop, terminal and plain reading pages.LiveTyphonA strict, statically typed Python dialect and compiler written in Rust.Active development

Research

What makes a useful coding model?Task completion, baselines and execution traces in personal model experiments.Research note

Blog

Building this websiteA portfolio you can explore rather than scroll.Evals are the productIf you can't measure it, you're demoing it.Short noteAgents need boring infrastructureThe interesting part of an agent is the model; the reliable part is everything else.Short note