types/: Seiten-Type-Spec-Anleitungsprosa in stackeigene guidance-Datei ausgelagert (schliesst #104)

Files changed:
- AGENTS.md
- CHANGES.md
- VERSION
- docs/ownership-and-templates.md
- instructions/migrations/6.0.0-type-guidance-split.md
- instructions/setup-instance.md
- tools/CONTRACT.md
- tools/chemenu/commands/dist_cmd.py
- tools/chemenu/commands/types_cmd.py
- tools/chemenu/tests/test_dist_cmd.py
- tools/chemenu/tests/test_dist_upgrade.py
- tools/chemenu/tests/test_type_resolver.py
- tools/chemenu/tests/test_types_cmd.py
- tools/chemenu/type_resolver.py
- tools/chemenu/types_core.py
- types/comparison.guidance.md
- types/comparison.md
- types/concept.guidance.md
- types/concept.md
- types/entity.guidance.md
- types/entity.md
- types/source.guidance.md
- types/source.md
- types/type-guidance.md
- types/type-guidance.schema.yaml
- types/type-spec.md

tools/chemenu/commands/dist_cmd.py

@@ -338,6 +338,32 @@ def instance_owned_type_stems() -> set[str]:
     return stems
 
 
+# The suffix a type-spec's own two files carry - `<stem>.md` and
+# `<stem>.schema.yaml` - as opposed to a sibling file that merely starts with
+# the same stem, such as `<stem>.guidance.md` (Gitea #104). Checked as an
+# exact suffix rather than by splitting on the first `.`, which is what let
+# `entity.guidance.md` be mistaken for the `entity` type-spec's own file
+# before this existed - a stack-owned file re-keyed as though it were the
+# instance's `.template` to adopt, and flagged as a leak by the other call
+# site for not being one.
+_TYPE_SCHEMA_SUFFIX = ".schema.yaml"
+
+
+def _owned_type_stem(relative: str) -> Optional[str]:
+    """The type stem `relative` (a path under `types/`, no `.template`
+    suffix) names, if it is exactly that type-spec's own `<stem>.md` or
+    `<stem>.schema.yaml` - `None` for anything else under `types/`,
+    including a `<stem>.guidance.md` file. `_plan_types()` and `find_leaks()`
+    both ask this instead of computing their own stem, so the two answer the
+    same question about the same path (AGENTS.md invariant 8)."""
+    name = relative.rsplit("/", 1)[-1]
+    if name.endswith(_TYPE_SCHEMA_SUFFIX):
+        return name[: -len(_TYPE_SCHEMA_SUFFIX)]
+    if name.endswith(".md") and not name.endswith(".guidance.md"):
+        return name[: -len(".md")]
+    return None
+
+
 def _plan_types() -> dict[str, PlannedFile]:
     """`types/`, with the page type-specs re-keyed as templates.
 
@@ -347,6 +373,11 @@ def _plan_types() -> dict[str, PlannedFile]:
     to be adopted before it counts. A type-spec's `.schema.yaml` travels with
     it, because the two are one type (see types/type-spec.md § Anatomy) and
     adopting half of it would leave a spec validated by a file it does not own.
+
+    A type-spec's optional `<name>.guidance.md` (Gitea #104) is the opposite:
+    stack-owned even where the type-spec itself is instance-owned, and ships
+    verbatim beside the `.template` - `_owned_type_stem` is what keeps it out
+    of this re-keying despite sharing the type-spec's own stem.
     """
     plan = _copy_tree(config.TYPES_DIR, "types", frozenset())
     stems = instance_owned_type_stems()
@@ -355,9 +386,8 @@ def _plan_types() -> dict[str, PlannedFile]:
 
     rekeyed: dict[str, PlannedFile] = {}
     for relative, planned in plan.items():
-        name = relative.rsplit("/", 1)[-1]
-        stem = name.split(".", 1)[0]
-        if stem in stems:
+        stem = _owned_type_stem(relative)
+        if stem is not None and stem in stems:
             rekeyed[f"{relative}.template"] = planned
         else:
             rekeyed[relative] = planned
@@ -512,7 +542,8 @@ def find_leaks(plan: dict[str, PlannedFile]) -> list[str]:
         elif (
             relative.startswith("types/")
             and not relative.endswith(".template")
-            and name.split(".", 1)[0] in owned_types
+            and (owned_stem := _owned_type_stem(relative)) is not None
+            and owned_stem in owned_types
         ):
             leaks.append(f"{relative} (this instance's page type-spec; ship the .template)")
         elif relative.startswith("instructions/dev/"):