Check for existing issues and PRs before creating new ones. Fires automatically when agent intends to file an issue, open a PR, or comment on a thread. Searches the target repo for duplicates and shows matches so the agent can decide whether to proceed or contribute to an existing thread instead.

在创建新问题或拉取请求前，请先检查是否存在已有的相关问题或拉取请求。当代理计划提交问题、打开拉取请求或在讨论线中留言时，系统将自动触发此检查。系统会在目标仓库中搜索重复项并显示匹配结果，以便代理决定是继续创建新内容，还是参与现有讨论。