Give your agent a sandbox

An LLM that writes code is only useful if it can run the code. Handing it your shell is one answer, and a bad one. Here is a small coding agent whose only way to run anything is a throwaway WebAssembly sandbox, and what it looks like when it has to fix a failing test suite from inside it.

24 min read · August 21, 2026

World-building with WASM

A walkable browser world needs something to generate it, something to draw it, and something to make...

June 8, 2026 · 7 min read

Controlled Chaos

I've a love hate relationship with rules. They give me a map, but they also draw the walls. This is...

April 26, 2026 · 6 min read

Writing Your Own Claude Plugin and Shipping it to the World

Claude Code has a plugin system now. Build a plugin, push it to GitHub, list it on AgentHub, and...

April 20, 2026 · 19 min read

N Reviewers Walk Into a PR...

How many people should review this PR? I built a GitHub Action that answers that question...

April 2, 2026 · 6 min read

Software Without Pause

Unreal, unprecedented speed of releases and updates

March 28, 2026 · 16 min read

The Missing Playbook for AI Agents

Most people are building agents the way they wrote their first prompts. But we already know how to...

March 17, 2026 · 20 min read

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