diff --git a/plugins/voyage/lib/parsers/project-discovery.mjs b/plugins/voyage/lib/parsers/project-discovery.mjs
index b247862..15fcd5e 100644
--- a/plugins/voyage/lib/parsers/project-discovery.mjs
+++ b/plugins/voyage/lib/parsers/project-discovery.mjs
@@ -5,7 +5,7 @@
 //   .claude/projects/<YYYY-MM-DD>-<slug>/
 //     brief.md
 //     research/<NN>-<slug>.md (sorted by filename)
-//     architecture/overview.md   (opt-in, owned by separate ultra-cc-architect plugin)
+//     architecture/overview.md   (opt-in, produced by an upstream architect plugin)
 //     plan.md
 //     progress.json
 
diff --git a/plugins/voyage/lib/validators/architecture-discovery.mjs b/plugins/voyage/lib/validators/architecture-discovery.mjs
index 2a26186..daaad00 100644
--- a/plugins/voyage/lib/validators/architecture-discovery.mjs
+++ b/plugins/voyage/lib/validators/architecture-discovery.mjs
@@ -1,9 +1,9 @@
 // lib/validators/architecture-discovery.mjs
 // EXTERNAL CONTRACT — drift-WARN, never drift-FAIL.
 //
-// The architecture/ directory is owned by the separate `ultra-cc-architect`
-// plugin. ultraplan-local validates only DISCOVERY (file present at canonical
-// path) and tolerates internal-format drift via warnings.
+// The architecture/ directory is produced by an upstream architect plugin
+// (opt-in). voyage validates only DISCOVERY (file present at canonical path)
+// and tolerates internal-format drift via warnings.
 //
 // Never read body content beyond first heading. Never assert frontmatter shape.
 
@@ -42,7 +42,7 @@ export function discoverArchitecture(projectDir) {
         result.warnings.push(issue(
           'ARCH_NON_CANONICAL_OVERVIEW',
           `Architecture file at non-canonical path: ${alt}`,
-          `Canonical contract is architecture/overview.md. The ultra-cc-architect plugin may have drifted; this is a warning, not a blocker.`,
+          `Canonical contract is architecture/overview.md. The upstream architect producer may have drifted; this is a warning, not a blocker.`,
         ));
         break;
       }
@@ -61,7 +61,7 @@ export function discoverArchitecture(projectDir) {
     result.warnings.push(issue(
       'ARCH_LOOSE_FILES',
       `Found ${result.looseFiles.length} unrecognized architecture file(s)`,
-      `Architecture contract expects overview.md (+ optional gaps.md). Loose files may indicate format drift in ultra-cc-architect.`,
+      `Architecture contract expects overview.md (+ optional gaps.md). Loose files may indicate format drift in the upstream architect producer.`,
     ));
   }
 
diff --git a/plugins/voyage/verify.sh b/plugins/voyage/verify.sh
index 08f9f9a..af8acbb 100755
--- a/plugins/voyage/verify.sh
+++ b/plugins/voyage/verify.sh
@@ -27,7 +27,7 @@ fail() { echo "[FAIL] SC$1 — $2"; FAIL=$((FAIL + 1)); exit 1; }
 # Tracked-file exclusions (paths preserved verbatim from old name).
 # - CHANGELOG/TRADEMARKS/MIGRATION legitimately reference the old name.
 # - architecture-discovery.mjs + project-discovery.mjs are Q8 exceptions
-#   pointing at the upstream "ultra-cc-architect" producer slot.
+#   pointing at the upstream architect producer slot.
 # - verify.sh self-references the forbidden patterns to detect them.
 # - .claude/, .session-state.local.json, *.local.md handled via gitignore.
 exclude_path() {