p28

DEVELOPER_POLICIES.md

@@ -123,3 +123,18 @@ Use this checklist for every relevant PR:
 - [ ] `mto:agent:regression:test` is OK.
 - [ ] The protected functional flows were manually checked if the touched area can affect them.
 - [ ] README or patch README documents the reason for any intentionally accepted technical fallback.
+## 9. Language cleanup ownership
+
+Generic language cleanup must use `config/retriex/language.yaml` and its cleanup profiles.
+
+Rules:
+
+- add generic German stopwords to `stopword_groups`, not to domain YAML files
+- add user wording such as `ich suche`, `zeige mir` or `habt ihr` to `phrase_groups`
+- add table/list/overview wording to `meta_term_groups`
+- keep commerce intent, product-role, measurement and routing terms in their owning domain YAML
+- never remove protected terms such as `nicht`, `kein`, `testomat`, `indikator`, `ph`, `rx`, `th`, `tc` or `0,02` through generic cleanup
+- prefer `cleanup_profile: ...` references over copied token lists
+
+See `RETRIEX_LANGUAGE_CLEANUP_GUIDE.md` for the detailed ownership rules.
+