diff --git a/groups/main/CLAUDE.md b/groups/main/CLAUDE.md
index a94c004..de934f2 100644
--- a/groups/main/CLAUDE.md
+++ b/groups/main/CLAUDE.md
@@ -258,7 +258,7 @@ Read `/workspace/project/data/registered_groups.json` and format it nicely.
 
 ## Global Memory
 
-You can read and write to `/workspace/project/groups/global/CLAUDE.md` for facts that should apply to all groups. Only update global memory when explicitly asked to "remember this globally" or similar.
+You can read and write to `/workspace/global/CLAUDE.md` for facts that should apply to all groups. Only update global memory when explicitly asked to "remember this globally" or similar.
 
 ---
 
diff --git a/src/container-runner.ts b/src/container-runner.ts
index 31efa96..dafa143 100644
--- a/src/container-runner.ts
+++ b/src/container-runner.ts
@@ -104,6 +104,16 @@ function buildVolumeMounts(
       containerPath: '/workspace/group',
       readonly: false,
     });
+
+    // Global memory directory — writable for main so it can update shared context
+    const globalDir = path.join(GROUPS_DIR, 'global');
+    if (fs.existsSync(globalDir)) {
+      mounts.push({
+        hostPath: globalDir,
+        containerPath: '/workspace/global',
+        readonly: false,
+      });
+    }
   } else {
     // Other groups only get their own folder
     mounts.push({