diff --git a/.codex/skills/thread-naming/SKILL.md b/.codex/skills/thread-naming/SKILL.md
index a2e6a44..06e0fab 100644
--- a/.codex/skills/thread-naming/SKILL.md
+++ b/.codex/skills/thread-naming/SKILL.md
@@ -16,7 +16,7 @@ Keep thread titles short and useful for later resume lists.
 
 ## How to Rename
 
-- If the client exposes a thread rename or `thread/setName` capability, use it with the concise title.
+- If the client exposes a thread rename or `thread/name/set` capability, use it with the concise title.
 - If only Telegram commands are available, tell the user the exact `/rename TITLE` command to run.
 - If no rename mechanism is available, include a short suggested title in the final answer.
 
diff --git a/internal/codexapp/client.go b/internal/codexapp/client.go
index 0e6d6c3..9ec7299 100644
--- a/internal/codexapp/client.go
+++ b/internal/codexapp/client.go
@@ -229,7 +229,7 @@ func (c *Client) SetThreadName(ctx context.Context, threadID, name string) error
 		return err
 	}
 	var ignored json.RawMessage
-	return c.call(ctx, "thread/setName", map[string]any{
+	return c.call(ctx, "thread/name/set", map[string]any{
 		"threadId": threadID,
 		"name":     name,
 	}, &ignored)
diff --git a/internal/codexapp/client_test.go b/internal/codexapp/client_test.go
index 0fad9f3..290513b 100644
--- a/internal/codexapp/client_test.go
+++ b/internal/codexapp/client_test.go
@@ -91,14 +91,14 @@ func TestClientWebSocketUnixJSONRPC(t *testing.T) {
 			serverDone <- err
 			return
 		}
-		if setName["method"] != "thread/setName" {
-			serverDone <- unexpectedMessage("thread/setName", setName["method"])
+		if setName["method"] != "thread/name/set" {
+			serverDone <- unexpectedMessage("thread/name/set", setName["method"])
 			return
 		}
 		params := setName["params"].(map[string]any)
 		if params["threadId"] != "thr_1" || params["name"] != "Short title" {
 			payload, _ := json.Marshal(params)
-			serverDone <- unexpectedMessage("thread/setName params", string(payload))
+			serverDone <- unexpectedMessage("thread/name/set params", string(payload))
 			return
 		}
 		if err := conn.WriteJSON(map[string]any{"id": setName["id"], "result": map[string]any{}}); err != nil {