A computer-use system

Handrail

A model works a task out once. The run compiles to a typed, reviewable capability. Replay is plain code with no model in the loop. When a check fails, a ladder is climbed, and every rung only proposes.

Handrail in Five PicturesThe analogies the code is written in: the chef, the line cook, the waiter, the cashier, the stairs. Annotated illustrations and playable diagrams. Handrail, as builtArchitecture, the capability artifact, replay, resolve, the ledger, authoring as it ran, compile and the verify gate, the ladder, an agent ordering through MCP, use cases, code map. End of milestone 7.

Source and design documents are in the repository: docs/DESIGN.md, docs/PLAN.md, docs/HANDOFF.md.