diff --git a/hosts/gbrain.ts b/hosts/gbrain.ts
index 30c9fb4b..ae777f2f 100644
--- a/hosts/gbrain.ts
+++ b/hosts/gbrain.ts
@@ -1,5 +1,10 @@
 import type { HostConfig } from '../scripts/host-config';
 
+/**
+ * GBrain host config.
+ * Compatible with GBrain >= v0.10.0 (doctor --fast --json, search CLI, entity enrichment).
+ * When updating, check INSTALL_FOR_AGENTS.md in the GBrain repo for breaking changes.
+ */
 const gbrain: HostConfig = {
   name: 'gbrain',
   displayName: 'GBrain',
@@ -13,7 +18,7 @@ const gbrain: HostConfig = {
 
   frontmatter: {
     mode: 'allowlist',
-    keepFields: ['name', 'description'],
+    keepFields: ['name', 'description', 'triggers'],
     descriptionLimit: null,
   },
 
diff --git a/hosts/hermes.ts b/hosts/hermes.ts
index 584652bb..43598989 100644
--- a/hosts/hermes.ts
+++ b/hosts/hermes.ts
@@ -49,8 +49,9 @@ const hermes: HostConfig = {
     'CODEX_SECOND_OPINION',
     'CODEX_PLAN_REVIEW',
     'REVIEW_ARMY',
-    'GBRAIN_CONTEXT_LOAD',
-    'GBRAIN_SAVE_RESULTS',
+    // GBRAIN_CONTEXT_LOAD and GBRAIN_SAVE_RESULTS are NOT suppressed.
+    // The resolvers handle GBrain-not-installed gracefully ("proceed without brain context").
+    // If Hermes has GBrain as a mod, brain features activate automatically.
   ],
 
   runtimeRoot: {