proofstone / projects
Projects
Understand it by building it — from scratch, by hand. Each lab states what you build and how it is checked: a grading suite, a running program, a test set. No lab is finished by reading about it.
3 labs · 3 live · checked by machines, not opinions
Build your own agent
indexTheSeydiCharyyev/build-your-own-agent
An index, not a map: for each of the ten components of the agent stack it points at the best from-scratch tutorials that exist — and ships a runnable reference of its own for the three where none did: MCP server and client, coding agent, token accounting.
SWIM lab
labproofstone/swim-lab
The §4.1 milestone of the Distributed Systems map, made executable: you implement the SWIM membership protocol; a deterministic suite grades your implementation. Green means done.
Scorer validation
toolai-safety-engineer-roadmap/reference/scorer-validation
A validator for your Inspect scorer, from the AI Safety map: run it against your scorer and see exactly which cases it misjudges — before your eval does.