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他テナントのTeamsポストを忘れないために

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 他テナントのTeamsポストを忘れないために

In this talk, I share the challenges I often face when working with customers who use Microsoft 365, especially when tasks appear in many different places across multiple tenants.
I explain why managing tasks in guest tenants is difficult, and why features like messaging extensions or Planner integration are not always available.
I also introduce the ideas I tried to solve this problem—from experimenting with a Chrome extension that injects menu items into Teams, to learning why this approach fails because Teams frequently changes its virtual DOM structure.
Then I talk about a new architecture I am planning:
retrieving content from guest tenants, caching data locally, syncing across devices, and preparing a master dataset for future automation.
I also share my plan to use AI to break down tasks and register them automatically.
Finally, I show a short demo and explain how I used GitHub Copilot (GPT‑5.1 Codex‑Max) with “vibe coding” techniques to speed up development while keeping premium requests low.

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KAMEGAWA Kazushi

February 07, 2026
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