[GEN-E6] every curated description cites the upstream declaration it states, proven against the pinned tree (PR 2a)

CHANGELOG.md

@@ -140,6 +140,8 @@ Nightly builds of `master` are on
 
 ### 🐛 Fixes
 
+- **IntelliSense documents declared units, defaults and family roles.** Documentation inferred only
+  from server implementation is removed; SDK types and runtime behavior are unchanged.
 - **Generated XML summaries use grammatical prose.** Articles and brand spellings are corrected,
   digits stay attached to their words, and members named `Value` read "Gets the value."
 - **A background-service start failure no longer carries part of the PTY handoff ticket.** The

docs/architecture/protocol-and-generation.md

@@ -157,7 +157,12 @@ Curation may:
   unambiguous wire role (an event, its exclusive payload, an operation's exclusive body, response
   or query record, an error of the error spine); a record with two roles keeps the plain
   placeholder. A row whose type or member is gone, a duplicate, or an empty summary or reason fails
-  generation;
+  generation. A documentation-only `descriptions` row may state a unit, sentinel, default or format
+  only when upstream declares it explicitly; every row cites those declarations in a required
+  `sources` list (each a `packages/path:line` location and a verbatim excerpt) that the curation
+  validator requires and a Tools test proves against the pinned upstream tree, and facts inferred
+  only from implementation are reported upstream instead and never change protocol semantics
+  (ADR-0013);
 - place a model in a slice where its name carries no family prefix, through a reason-bearing
   `modelOwners` row; a family's prefixes are its name, its singular, its group key and the
   group's `prefixAliases`, and a model with no prefix and no row fails generation. A