OpenTag: Self-Hosted AI Agent for Slack and Microsoft Teams

RepositoryCopilotKit/OpenTagTool

OpenTag is an open-source starter application by CopilotKit that connects LangGraph- and AG-UI-based AI agents directly into Slack and Microsoft Teams for triage and knowledge work.

Key points

  1. Functionality: Handles spreadsheet analysis in chat threads, generates native charts, creates Linear issues behind approval gates, and provides cited research briefs.
  2. Tech stack: Combines a Python LangGraph agent, a Node.js runtime, the Channels SDK, and AG-UI for generative interface components.
  3. Modular architecture: Agent logic, personas, tools, and UI are isolated into separate files and directories, allowing customization without altering channel lifecycle code.
  4. Deployment targets: Includes ready-to-use setups for Railway (two services) and AWS (private ECS Fargate tasks with Secrets Manager), alongside pre-built container images on GHCR.
  5. Target audience and maturity: Designed for engineering teams building custom, self-hosted on-call or triage bots; backed by over 1,100 stars and production-shaped configurations.

Why it matters

Standard chat bots in team messengers often lack interactive UI elements and structured approval flows. OpenTag provides an end-to-end blueprint for embedding rich agentic workflows directly where daily communication happens.

Analysis

OpenTag bridges the gap between agent prototyping and production deployment in enterprise chat environments. By integrating LangGraph with CopilotKit's Channels SDK, it demonstrates how to handle asynchronous approvals, generative UI, and tool invocation reliably. With pinned dependencies, graceful shutdowns, and turnkey infrastructure templates, it serves as a solid foundation for internal enterprise bots.

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Summary generated by AI (Gemini 3.8 Flash, 27 September 2026). It may contain errors – the original source is authoritative.

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  • Mattersburg
    Johann Nepomuk Bergerstraße 7/2/14
    7210 Mattersburg, Austria
  • Vienna
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