`IndexPolicy` grew five judging fields and `IndexPolicy.violations`, closing the
gap a test has been pinning since `848e395`. `STRICT_V1.index` is now the proving
consumer's shape rather than DEFAULT's.
The design was settled by a conflict rather than by a preference. The convention
owner reported that an index is an authored count of a directory's children and
that a validator enumerating the directory has implemented the wrong contract.
Checked against the proving consumer before adopting it, the two turn out to be
directly opposed: gate BUNDLE_INDEX_COMPLETE (validate.py:1081-1120, ERROR) builds
its expected set by enumerating the directory and demands an exact bidirectional
match, and bundle.py:498-567 writes every index from a tree walk. Neither is
incoherent inside its own spec, so authored-versus-derived is a policy field in
both directions and a library invariant in neither.
Consequences encoded rather than documented: nothing here enumerates a directory
— the caller supplies the listing, `violations` refuses one when the profile's
index is authored and refuses to run without one when it is derived, so code
written to the wrong contract fails at the call instead of passing every test one
would think to write. Root and nested indexes are asymmetric (confirmed in both
consumers, different key sets). A per-entry description is template-level, so
`render_link` refuses both a missing description and an unwanted one.
DEFAULT keeps upstream's root-only index and judges nothing, for the same measured
reason it carries no required frontmatter key set: upstream binds `index.md` to
the bundle root alone, so a judging default would condemn conforming bundles.
25 new tests, 493 green. C1 re-proven: `git diff --stat examples/` empty.
Kjell Tore Guttormsen
9436427520