diff --git a/app/agent/tools/impl/_plugin_tool_utils.py b/app/agent/tools/impl/_plugin_tool_utils.py
index ba25a215..db77b743 100644
--- a/app/agent/tools/impl/_plugin_tool_utils.py
+++ b/app/agent/tools/impl/_plugin_tool_utils.py
@@ -15,7 +15,7 @@ DEFAULT_PLUGIN_DATA_PREVIEW_CHARS = 12_000
 MAX_PLUGIN_DATA_PREVIEW_CHARS = 50_000
 PLUGIN_DATA_KEY_PREVIEW_LIMIT = 50
 PLUGIN_DATA_TRUNCATION_SUFFIX = "\n...(插件数据内容过长，已截断)"
-DEFAULT_PLUGIN_CANDIDATE_LIMIT = 10
+DEFAULT_PLUGIN_CANDIDATE_LIMIT = 500
 
 
 def get_plugin_snapshot(plugin_id: str) -> Optional[dict[str, Any]]: