# `config`: The Configuration Layer (`myform.yaml` + `[tool.myform]` + `.py` extensions)

```{py:currentmodule} myform.config
```

One typed schema with per-format applicability tags, projected two ways: the mdformat-facing
`MystOptions` surface stays authoritative for the plugin facade, while `MyformConfig` adds the
translator-wide knobs (degradation policy, assists, per-target sections). Python extension modules
register additional readers, writers, and lowerings through the same registries used internally.

Integration seam for `myform.convert`: resolve `config = MyformConfig.load(target_path)`, call
`load_extensions(config)` *before* resolving the target writer (an extension may register the
target format itself), then `warn_inapplicable(config, dst)` before rendering.

This package is PEP 562-lazy: the pydantic schema (`options`) and the extension loader
(`extensions`) import on first attribute access, so the stdlib-only `discovery` walk stays
importable from cold paths like the CLI's mdformat fast-path check.

```{eval-rst}
.. automodule:: myform.config
   :members:
   :imported-members:
```