fix: count_posts paginated before aggregation

lib/bds/ai/chat_tools.ex

@@ -220,7 +220,7 @@ defmodule BDS.AI.ChatTools do
   def execute("count_posts", arguments, project_id) do
     project_id = project_id || active_project_id()
     group_by = List.wrap(arguments["groupBy"] || arguments["group_by"]) |> Enum.map(&to_string/1)
-    {:ok, result} = Search.search_posts(project_id, "", search_filters(arguments))
+    result = search_all_counted_posts(project_id, arguments)
 
     groups =
       result.posts
@@ -882,6 +882,16 @@ defmodule BDS.AI.ChatTools do
     |> Map.put(:limit, normalize_limit(arguments["limit"]))
   end
 
+  defp search_all_counted_posts(project_id, arguments) do
+    filters = search_filters(arguments) |> Map.put(:offset, 0) |> Map.put(:limit, 1)
+    {:ok, %{total: total}} = Search.search_posts(project_id, "", filters)
+
+    filters = Map.put(filters, :limit, max(total, 1))
+    {:ok, result} = Search.search_posts(project_id, "", filters)
+
+    result
+  end
+
   defp maybe_put(map, _key, nil), do: map
   defp maybe_put(map, _key, ""), do: map
   defp maybe_put(map, key, value), do: Map.put(map, key, value)

lib/bds/mcp/tools.ex

@@ -390,8 +390,7 @@ defmodule BDS.MCP.Tools do
   defp count_posts(params) do
     project = Queries.active_project!()
     group_by = map_get(params, :groupBy, []) |> Enum.map(&to_string/1)
-    filters = Queries.search_filters(params)
-    {:ok, result} = Search.search_posts(project.id, "", filters)
+    result = search_all_counted_posts(project.id, params)
 
     groups =
       result.posts
@@ -403,6 +402,16 @@ defmodule BDS.MCP.Tools do
     %{"groups" => groups, "total_posts" => result.total}
   end
 
+  defp search_all_counted_posts(project_id, params) do
+    filters = Queries.search_filters(params) |> Map.put(:offset, 0) |> Map.put(:limit, 1)
+    {:ok, %{total: total}} = Search.search_posts(project_id, "", filters)
+
+    filters = Map.put(filters, :limit, max(total, 1))
+    {:ok, result} = Search.search_posts(project_id, "", filters)
+
+    result
+  end
+
   defp read_post_by_slug(%{"slug" => slug} = params),
     do: read_post_by_slug(Map.put_new(params, :slug, slug))