EXTENSIONS

Let an AI fill in an analysis template without letting it touch the science. Governed parameter-fill: the AI fills ONLY the typed parameter slots of a frozen template, and `validate` is the deterministic gate that asserts the frozen structure was untouched and every fill satisfies its slot contract — bounded, validated, reproducible AI authoring, not free-form code generation. `author` builds Quarto (.qmd) or Jupyter (.ipynb) templates from structured cells (the writer owns the document layout and binds each param at its declared type) for R or Python; `init` wires an R project to record its work. The guarantee: what the AI can change is exactly the typed slots and nothing else — the template is the contract.