Community management is critical for stakeholders to collaboratively build and sustain communities with socio-technical support. However, most of the existing research has mainly focused on the community members and the platform, with little attention given to the developers who act as intermediaries between the platform and community members and develop tools to support community management. This study focuses on third-party developers (TPDs) for the live streaming platform Twitch and explores their tool development practices. Using a mixed method with in-depth qualitative analysis, we found that TPDs maintain complex relationships with different stakeholders (streamers, viewers, platform, professional developers), and the multi-layered policy restricts their agency regarding idea innovation and tool development. We argue that HCI research should shift its focus from tool users to tool developers with regard to community management. We propose designs to support closer collaboration between TPDS and the platform and professional developers and streamline TPDs' development process with unified toolkits and policy documentation.

翻译：社区管理对于利益相关者通过社会技术支持共同构建和维持社区至关重要。然而，现有研究主要关注社区成员和平台，很少关注作为平台与社区成员中介并开发工具支持社区管理的开发者。本研究聚焦直播平台Twitch的第三方开发者，探索其工具开发实践。通过深度定性分析的混合方法，我们发现第三方开发者与不同利益相关者（主播、观众、平台、专业开发者）维持着复杂的关系，且多层次的政策限制了他们在创意创新和工具开发方面的自主性。我们认为人机交互研究应将社区管理研究的关注点从工具使用者转向工具开发者。我们提出设计建议，支持第三方开发者与平台及专业开发者建立更紧密的合作，并通过统一工具包和政策文档简化第三方开发者的开发流程。