474449 – Microsoft Copilot (Microsoft 365): Copilot extensibility – Developers can use TypeSpec as an authoring experience

Product:

Copilot, Teams

Platform:

Developer, World tenant

Status:

Launched

Change type:

Links:

Details:

Developers can use TypeSpec as an authoring experience for declarative agents and API plugins in Teams Toolkit.

Change Category:
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Scope:
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Release Phase:
General Availability

Created:
2025-01-10

updated:
2025-09-27

Docu to Check

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MS workload name

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summary for non-techies**

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Direct effects for Operations**

Integration Issues
If the integration of TypeSpec with Teams Toolkit is not properly prepared, it may lead to compatibility issues with existing applications, causing disruptions in workflows.
   - roles: Developers, IT Support
   - references: https://techcommunity.microsoft.com/t5/microsoft-365-developer-blog/announcing-microsoft-365-copilot-in-teams/ba-p/3734560, https://learn.microsoft.com/en-us/microsoftteams/platform/get-started/get-started

User Experience Degradation
Without adequate preparation, users may face a steep learning curve with the new features, leading to confusion and decreased productivity.
   - roles: End Users, Team Leaders
   - references: https://www.forbes.com/sites/bernardmarr/2023/03/16/microsoft-365-copilot-what-it-is-and-how-it-will-change-the-way-we-work/, https://www.zdnet.com/article/microsoft-365-copilot-what-you-need-to-know/

Configutation Options**

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explanation for non-techies**

Microsoft Copilot, part of the Microsoft 365 suite, is like having a smart assistant in your office software. It helps automate tasks and provides insights, making your workday smoother. Imagine it as a digital assistant that can help you draft emails, schedule meetings, or even analyze data, similar to how a personal assistant might help organize your day.

Recently, Microsoft has introduced a feature called Copilot extensibility, which allows developers to use a tool called TypeSpec. Think of TypeSpec as a special language or set of instructions that developers can use to create custom agents or plugins for Microsoft Teams. It's like giving developers a toolkit to build new features or enhance existing ones, much like how a chef might use different ingredients and tools to create a unique dish.

For instance, if a company wants a specific function in Teams that isn't available out of the box, developers can use TypeSpec to create a plugin that meets that need. This flexibility is akin to customizing a car with specific features that suit your driving style and preferences.

In essence, Copilot extensibility and TypeSpec empower developers to tailor Microsoft Teams to better fit the unique requirements of their organization, enhancing productivity and collaboration.