diff --git a/plugins/memory/openviking/__init__.py b/plugins/memory/openviking/__init__.py
index a57a60e67bd..95edaca47d8 100644
--- a/plugins/memory/openviking/__init__.py
+++ b/plugins/memory/openviking/__init__.py
@@ -72,7 +72,6 @@ _SESSION_DRAIN_TIMEOUT = 10.0
 _DEFERRED_COMMIT_TIMEOUT = (_TIMEOUT * 2) + 5.0
 _REMOTE_RESOURCE_PREFIXES = ("http://", "https://", "git@", "ssh://", "git://")
 _SYNC_TRACE_ENV = "HERMES_OPENVIKING_SYNC_TRACE"
-_OPENVIKING_RECALL_TOOL_NAMES = {"viking_search", "viking_read", "viking_browse"}
 
 # Maps the viking_remember `category` enum to a viking:// subdirectory.
 # Keep in sync with REMEMBER_SCHEMA.parameters.properties.category.enum.
@@ -503,6 +502,17 @@ ADD_RESOURCE_SCHEMA = {
 }
 
 
+# Recall tools (read-only) whose results we never re-ingest into OpenViking —
+# echoing recalled memory back into the session transcript would re-store it.
+# Write tools (viking_remember / viking_add_resource) are intentionally NOT
+# here. Derived from the canonical schema names so renames can't desync.
+_OPENVIKING_RECALL_TOOL_NAMES = {
+    SEARCH_SCHEMA["name"],
+    READ_SCHEMA["name"],
+    BROWSE_SCHEMA["name"],
+}
+
+
 def _zip_directory(dir_path: Path) -> Path:
     """Create a temporary zip file containing a directory tree."""
     root = dir_path.resolve()