Reference

Information-oriented pages: what exists, what it is called, what it defaults to. Nothing here teaches a workflow — for that, work through the tutorials, or start at Getting started.

• Command-line reference
• Configuration reference
• Material states

Page	Answers
Command-line reference	Which commands and flags exist, and what each exit code means
Configuration reference	Every key of matmelt.yaml, with its default and what it changes
Material states	What each material state means, and which transitions are legal

Two of these pages cannot drift from the code, by construction. The command reference is rendered from the real Typer application at build time, so it is the same text --help prints. The configuration and state pages are written by hand, and the test suite checks them against the real schema, the real stage constructors and the real state machine on every run — a field or a state that is not documented here fails a test.

For the Python API behind all of this — the value objects, the stage and backend contracts, the orchestrator — see API reference.