Sébastien Levert
@sebastienlevert.com
📤 680
📥 216
📝 194
Principal PM Manager at
#Microsoft
focusing on Microsoft 365 Copilot developer experiences.
reposted by
Sébastien Levert
Kayla Cinnamon ☕️
about 13 hours ago
Developing isn't only about writing the code, there's work context and team decisions that come with it. Work IQ now brings this missing piece directly to GitHub Copilot, and you can leverage it all without leaving your terminal using the Copilot CLI 🔥
devblogs.microsoft.com/blog/bringin...
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Bringing work context to your code in GitHub Copilot - Microsoft for Developers
This week we shipped the GitHub Copilot SDK which takes the agent loop from the Copilot CLI and makes it easy to embed in other applications. We’ve been using, improving, and extending Copilot CLI for...
https://devblogs.microsoft.com/blog/bringing-work-context-to-your-code-in-github-copilot
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reposted by
Sébastien Levert
Kayla Cinnamon ☕️
about 10 hours ago
I asked GitHub Copilot with Work IQ to compare my PowerToys search spec in SharePoint to the implementation on the GitHub repo and it worked seamlessly. Being able to pair work context with code in the repo using Copilot is an absolute game changer for development💥💥💥
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Copilot Studio Extension for Visual Studio Code Is Now Generally Available
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Copilot Studio Extension for Visual Studio Code Is Now Generally Available - Microsoft 365 Developer Blog
Explore the Copilot Studio VS Code extension for building agents with ease. Enhance your development workflow today.
https://devblogs.microsoft.com/microsoft365dev/copilot-studio-extension-for-visual-studio-code-is-now-generally-available/
9 days ago
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SharePoint Framework (SPFx) roadmap update – December 2025
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SharePoint Framework (SPFx) roadmap update – December 2025 - Microsoft 365 Developer Blog
SPFx is powering the future of Microsoft 365. From AI-driven portals to seamless integrations across SharePoint, Teams and Viva, SPFx is driving innovation at scale. This monthly blog series kicks off...
https://devblogs.microsoft.com/microsoft365dev/sharepoint-framework-spfx-roadmap-update-december-2025/
about 1 month ago
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Unlock your email potential with
Schema.org
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Unlock your email potential with Schema.org - Microsoft 365 Developer Blog
Discover how email can streamline your business travel experience and ensure you never miss important details.
https://devblogs.microsoft.com/microsoft365dev/unlock-your-email-potential-with-schema-org/
about 1 month ago
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Build declarative agents for Microsoft 365 Copilot with MCP
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Build declarative agents for Microsoft 365 Copilot with MCP - Microsoft 365 Developer Blog
With introduction of MCP support, it’s now much easier for developers to integrate their business workflows, SaaS, and LoB systems into Copilot via declarative agent.
https://devblogs.microsoft.com/microsoft365dev/build-declarative-agents-for-microsoft-365-copilot-with-mcp/
about 1 month ago
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General Availability of SharePoint Framework 1.22 – A Major Refresh of the Build & Tooling Experience
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General Availability of SharePoint Framework 1.22 - A Major Refresh of the Build & Tooling Experience - Microsoft 365 Developer Blog
We are excited to announce general availability for the SharePoint Framework 1.22. This time focus is primarily on updating the build toolchain and to address npm audit issues.
https://devblogs.microsoft.com/microsoft365dev/general-availability-of-sharepoint-framework-1-22-a-major-refresh-of-the-build-tooling-experience/
about 1 month ago
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reposted by
Sébastien Levert
Vlad Catrinescu
about 2 months ago
If your
#spotifyunwrapped
was also including work!
#spotify
#spotifywrapped
#MicrosoftTeams
.
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Dev Proxy v2.0 with improved AI telemetry, and small breaking changes
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Dev Proxy v2.0 with improved AI telemetry, and small breaking changes - Microsoft 365 Developer Blog
Introducing Dev Proxy v2.0 with improved AI telemetry, and small breaking changes.
https://devblogs.microsoft.com/microsoft365dev/dev-proxy-v2-0-with-improved-ai-telemetry-and-small-breaking-changes/
about 2 months ago
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Hey
@codedeploygo.live
! Do we get t-shirts?
about 2 months ago
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reposted by
Sébastien Levert
Andrew Connell
about 2 months ago
Declarative Agents = JSON + YAML files = version control = actual developer workflow. 🤷♂️Why isn't Microsoft shouting this from the rooftops? 🗓️ Join my Dec 9 webinar for the full story. 🎟️
vtns.io/xbgqnf
#Microsoft365Copilot
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SharePoint Framework (SPFx) roadmap update – November 2025
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SharePoint Framework (SPFx) roadmap update – November 2025 - Microsoft 365 Developer Blog
SPFx is powering the future of Microsoft 365. From AI-driven portals to seamless integrations across SharePoint, Teams and Viva, SPFx is driving innovation at scale. This monthly blog series kicks off...
https://devblogs.microsoft.com/microsoft365dev/sharepoint-framework-spfx-roadmap-update-november-2025/
about 2 months ago
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Introducing TypeSpec for Microsoft 365 Copilot – Build declarative agents faster with more confidence
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Introducing TypeSpec for Microsoft 365 Copilot – Build declarative agents faster with more confidence - Microsoft 365 Developer Blog
We’re excited to announce that TypeSpec for Microsoft 365 Copilot is now generally available! This milestone marks the first stable release of the domain-specific language (DSL) designed to streamline...
https://devblogs.microsoft.com/microsoft365dev/introducing-typespec-for-microsoft-365-copilot/
about 2 months ago
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SharePoint Site Creation in Microsoft Graph
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SharePoint Site Creation in Microsoft Graph - Microsoft 365 Developer Blog
The SharePoint team is excited to (finally) bring Site Collection creation to Graph! Starting in Microsoft Graph beta you can now create new site collections!
https://devblogs.microsoft.com/microsoft365dev/sharepoint-site-creation-in-microsoft-graph/
2 months ago
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reposted by
Sébastien Levert
Andrew Connell
2 months ago
2 days until my TypeSpec webinar. Real-world patterns for building M365 Copilot declarative agents. Production-ready guidance, not marketing fluff. Nov 25, 12 PM ET. 🎟️ Register now
vtns.io/TuKMJn
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reposted by
Sébastien Levert
Matteo Pagani
2 months ago
And if you prefer reading than watching, here is a great written summary of all the Ignite announcements related to building agents for Microsoft 365 Copilot:
devblogs.microsoft.com/microsoft365...
#msignite
#microsoft365
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Ignite 2025: A Developer’s Guide to Building Agents for Microsoft 365 - Microsoft 365 Developer Blog
A developer’s guide to building agents for Microsoft 365. See what’s new at Ignite 2025—Declarative Agents, Custom Engine Agents, and Agent 365 for enterprise-grade security and management.
https://devblogs.microsoft.com/microsoft365dev/ignite-2025-a-developers-guide-to-building-agents-for-microsoft-365/
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Ignite 2025: A Developer’s Guide to Building Agents for Microsoft 365
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Ignite 2025: A Developer’s Guide to Building Agents for Microsoft 365 - Microsoft 365 Developer Blog
A developer’s guide to building agents for Microsoft 365. See what’s new at Ignite 2025—Declarative Agents, Custom Engine Agents, and Agent 365 for enterprise-grade security and management.
https://devblogs.microsoft.com/microsoft365dev/ignite-2025-a-developers-guide-to-building-agents-for-microsoft-365/
2 months ago
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reposted by
Sébastien Levert
Matteo Pagani
2 months ago
If you're building agents for Microsoft 365 Copilot, this Ignite session is absolutely worth your time. 🔥 TypeSpec 🤖 Multi-agent support for declarative agents 📎 New capabilities for custom engine agents in Copilot Chat (yes—file upload!) Check it out:
ignite.microsoft.com/en-US/sessio...
#MSIgnite
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Build Agents for Copilot with the Microsoft 365 Agents Toolkit
Build and bring your own agent into Microsoft 365 Copilot with the Microsoft 365 Agents Toolkit. Explore Declarative and Custom Engine Agents, use the Microsoft 365 Agents SDK, and extend with…
https://ignite.microsoft.com/en-US/sessions/BRK319
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reposted by
Sébastien Levert
Andrew Connell
2 months ago
Building M365 Copilot agents? TypeSpec is Microsoft's answer to AI platform instability. 21+ years of M365 dev experience → practical webinar Nov 25. 🎟️ Register now
vtns.io/TuKMJn
#Microsoft365
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Microsoft 365 Copilot APIs: What’s New and What’s Next
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Microsoft 365 Copilot APIs: What’s New and What’s Next - Microsoft 365 Developer Blog
Discover what’s new in Microsoft 365 Copilot APIs — Retrieval API is now GA, and Chat and Search APIs are in public preview. Learn how these APIs, as part of Work IQ, deliver secure, permission-aware...
https://devblogs.microsoft.com/microsoft365dev/microsoft-365-copilot-apis-whats-new-and-whats-next/
2 months ago
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reposted by
Sébastien Levert
Andrew Connell
2 months ago
IntelliSense for declarative agents. Type checking for manifests. Automatic OpenAPI generation. See how TypeSpec changes everything. Webinar Nov 25, 12 PM ET. 🎟️ Register now
vtns.io/TuKMJn
#Copilot
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Microsoft Agent 365 Interoperability for Smart, Secure Productivity
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Microsoft Agent 365 Interoperability for Smart, Secure Productivity - Microsoft 365 Developer Blog
Agent 365 Interoperability equips any agent with apps and data to simplify human-agent workflows.
https://devblogs.microsoft.com/microsoft365dev/microsoft-agent-365-interoperability-for-smart-secure-productivity/
2 months ago
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Ignite 2025 – What’s new for Office Add-ins
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Ignite 2025 - What's new for Office Add-ins - Microsoft 365 Developer Blog
Explore the latest features in Office Add-ins, including platform updates and enhancements for a better developer experience.
https://devblogs.microsoft.com/microsoft365dev/ignite-2025-whats-new-for-office-add-ins/
2 months ago
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From Innovation to Enterprise Trust with Microsoft Agent 365
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From Innovation to Enterprise Trust with Microsoft Agent 365 - Microsoft 365 Developer Blog
Discover how Microsoft Agent 365 bridges innovation and enterprise trust. Learn how to build secure, compliant, and scalable agents with flexible paths for any AI stack—Copilot Studio, Microsoft Foundry,...
https://devblogs.microsoft.com/microsoft365dev/from-innovation-to-enterprise-trust-with-microsoft-agent-365/
2 months ago
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Announcing the Microsoft Teams SDK (Formerly the Teams AI Library)
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Announcing the Microsoft Teams SDK (Formerly the Teams AI Library) - Microsoft 365 Developer Blog
Discover the new and improved Teams AI Library, designed to help developers create even more powerful agents for Microsoft Teams.
https://devblogs.microsoft.com/microsoft365dev/announcing-the-updated-teams-ai-library-and-mcp-support/
2 months ago
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And some Demo Time on stage!
add a skeleton here at some point
2 months ago
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reposted by
Sébastien Levert
Andrew Connell
2 months ago
TypeSpec = Bicep for API manifests. Write once, generate declarative agent manifests + OpenAPI specs automatically. Learn how in my Nov 25 webinar. 🎟️ Register now
vtns.io/TuKMJn
#TypeSpec
#DeveloperTools
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reposted by
Sébastien Levert
Andrew Connell
2 months ago
Stop hand-writing JSON manifests for M365 Copilot agents. TypeSpec brings type safety and IntelliSense to declarative agent development. Join my webinar Nov 25, 12 PM ET. 🎟️ Register now
vtns.io/TuKMJn
#Microsoft365
#Copilot
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New developer resource page for Microsoft 365 interoperability and data portability
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New developer resource page for Microsoft 365 interoperability and data portability - Microsoft 365 Developer Blog
Microsoft is launching a centralized developer resource page that consolidates interoperability and data portability information, tools, and feedback channels to help partners and customers use Microsoft...
https://devblogs.microsoft.com/microsoft365dev/new-developer-resource-page-for-microsoft-365-interoperability-and-data-portability/
3 months ago
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SharePoint Framework (SPFx) roadmap update – October 2025
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SharePoint Framework (SPFx) roadmap update – October 2025 - Microsoft 365 Developer Blog
SPFx is powering the future of Microsoft 365. From AI-driven portals to seamless integrations across SharePoint, Teams and Viva, SPFx is driving innovation at scale. This blog series kicks off our journey...
https://devblogs.microsoft.com/microsoft365dev/sharepoint-framework-spfx-roadmap-update-october-2025/
3 months ago
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Dev Proxy v1.3 with exporting to HAR, LLM usage tracking, and enhanced permissions analysis
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Dev Proxy v1.3 with exporting to HAR, LLM usage tracking, and enhanced permissions analysis - Microsoft 365 Developer Blog
Introducing Dev Proxy v1.3 with new plugins for inspecting and debugging API requests, along with enhanced permissions analysis and improved OpenAPI spec generation for complex testing scenarios.
https://devblogs.microsoft.com/microsoft365dev/dev-proxy-v1-3-with-exporting-to-har-llm-usage-tracking-and-enhanced-permissions-analysis/
3 months ago
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Migrating from IDCRL authentication to modern authentication in SharePoint
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Migrating from IDCRL authentication to modern authentication in SharePoint - Microsoft 365 Developer Blog
In the next few months, Microsoft will be removing the legacy authentication protocol known as IDCRL (Identity Client Run Time Library) in SharePoint.
https://devblogs.microsoft.com/microsoft365dev/migrating-from-idcrl-authentication-to-modern-authentication-in-sharepoint/
3 months ago
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Deprecation of the previewImageUrl property for Insights items that reference file attachments
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Deprecation of the previewImageUrl property for Insights items that reference file attachments - Microsoft 365 Developer Blog
The previewImageUrl property is no longer returned for file attachment items.
https://devblogs.microsoft.com/microsoft365dev/deprecation-of-the-previewimageurl-property-for-insights-items-that-reference-file-attachments/
3 months ago
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reposted by
Sébastien Levert
Visual Studio Code
3 months ago
OpenAI Codex is now integrated directly in VS Code through the new Agent Sessions view - and can be powered by your GitHub Copilot subscription. Try it out now with VS Code Insiders and a Copilot Pro+ subscription. Happy coding!
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Exciting new capabilities and enhancements for M365 Developer Program – October 2025
devblogs.microsoft.com/microsoft365...
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Exciting new capabilities and enhancements for M365 Developer Program - October 2025 - Microsoft 365 Developer Blog
We are excited to share updates on the Microsoft 365 Developer Program with new capabilities and upcoming changes.
https://devblogs.microsoft.com/microsoft365dev/exciting-new-capabilities-and-enhancements-for-m365-developer-program-october-2025/
3 months ago
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reposted by
Sébastien Levert
Vesa Juvonen
3 months ago
💡 Build declarative agents for
#Microsoft365
#Copilot
with TypeSpec Let
@paolopia.bsky.social
show modeling actions; generating OpenAPI; wiring REST plugins; and running the agent in Copilot Chat; using the Microsoft 365 Agents Toolkit. 📺 Watch now →
youtu.be/yiq9ZgZTY7E
#CopilotStudio
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reposted by
Sébastien Levert
Den Delimarsky
3 months ago
I used Spec Kit to build a Mauna Kea observatory camera tracker 🌠 In the process, had to write a full guide for Spec Kit, because why not 🤷 Read ↳
den.dev/blog/github-...
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Changes to inline image representation in Outlook on the web and new Outlook for Windows
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Changes to inline image representation in Outlook on the web and new Outlook for Windows - Microsoft 365 Developer Blog
We are changing how inline images are represented in the HTML in Outlook on the web and the new Outlook for Windows.
https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook/
4 months ago
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SharePoint Framework (SPFx) roadmap update – September 2025
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SharePoint Framework (SPFx) roadmap update – September 2025 - Microsoft 365 Developer Blog
SPFx is powering the future of Microsoft 365. From AI-driven portals to seamless integrations across SharePoint, Teams and Viva, SPFx is driving innovation at scale. This new blog series kicks off our...
https://devblogs.microsoft.com/microsoft365dev/sharepoint-framework-spfx-roadmap-update-september-2025/
4 months ago
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Dev Proxy v1.2 with mock response mirroring and improved performance
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Dev Proxy v1.2 with mock response mirroring and improved performance - Microsoft 365 Developer Blog
Introducing Dev Proxy v1.2 with mock response mirroring capabilities that make API simulation more realistic.
https://devblogs.microsoft.com/microsoft365dev/dev-proxy-v1-2-with-mock-response-mirroring-and-improved-performance/
4 months ago
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The new GitHub app for Teams: from conversation to code
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The new GitHub app for Teams: from conversation to code - Microsoft 365 Developer Blog
The new AI-powered GitHub app for Teams allows you to collaborate with GitHub Copilot right inside your Teams conversations.
https://devblogs.microsoft.com/microsoft365dev/copilot-powered-github-app-for-teams-preview/
4 months ago
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Excel announces undo support for 3rd-party Copilot declarative agents & web add-ins
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Excel announces undo support for 3rd-party Copilot declarative agents & web add-ins - Microsoft 365 Developer Blog
Excel now supports Undo for 3rd-party Copilot declarative agents and web add-ins! This long-awaited capability unlocks a more seamless, professional experience for both developers and end users and addresses...
https://devblogs.microsoft.com/microsoft365dev/excel-announces-undo-support-for-3rd-party-copilot-declarative-agents-web-add-ins/
5 months ago
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Prepare your VBA projects for VBScript deprecation in Windows
devblogs.microsoft.com/microsoft365...
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Prepare your VBA projects for VBScript deprecation in Windows - Microsoft 365 Developer Blog
In May 2024, Microsoft announced the phased deprecation of VBScript in Windows, as detailed in the official Windows IT Pro Blog. This change impacts VBA developers who rely on VBScript, particularly for...
https://devblogs.microsoft.com/microsoft365dev/how-to-prepare-vba-projects-for-vbscript-deprecation/
5 months ago
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Change to data visibility for Microsoft Graph callRecords APIs in GCC High and DoD
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Change to data visibility for Microsoft Graph callRecords APIs in GCC High and DoD - Microsoft 365 Developer Blog
We're making changes to how Microsoft handles Microsoft Teams call data in GCC High and DoD environments that we expose via the Microsoft Graph callRecords APIs.
https://devblogs.microsoft.com/microsoft365dev/change-to-data-visibility-for-microsoft-graph-callrecords-apis-in-gcc-high-and-dod/
5 months ago
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Dev Proxy v1.1 with improved support for Microsoft Graph batching
devblogs.microsoft.com/microsoft365...
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Dev Proxy v1.1 with improved support for Microsoft Graph batching - Microsoft 365 Developer Blog
Introducing Dev Proxy v1.1 with critical fixes for Microsoft Graph batch request simulation, resolved authentication plugin issues, and enhanced the MinimalPermissionsGuidancePlugin with new reporting...
https://devblogs.microsoft.com/microsoft365dev/dev-proxy-v1-1-with-improved-support-for-microsoft-graph-batching/
5 months ago
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Enriching Microsoft 365 profiles with Microsoft 365 Copilot connectors for people data (public preview)
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Enriching Microsoft 365 profiles with Microsoft 365 Copilot connectors for people data (public preview) - Microsoft 365 Developer Blog
Enrich Microsoft 365 profiles with Microsoft 365 Copilot connectors for people data
https://devblogs.microsoft.com/microsoft365dev/enriching-microsoft-365-profiles-with-microsoft-365-copilot-connectors-for-people-data-public-preview/
5 months ago
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Microsoft Graph CLI retirement
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Microsoft Graph CLI retirement - Microsoft 365 Developer Blog
We are announcing the retirement of the Microsoft Graph command-line interface (CLI). The Microsoft Graph CLI has served as a powerful tool for developers and IT professionals to interact with Microsoft...
https://devblogs.microsoft.com/microsoft365dev/microsoft-graph-cli-retirement/
5 months ago
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Microsoft Graph Toolkit retirement
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Microsoft Graph Toolkit retirement - Microsoft 365 Developer Blog
We are announcing the deprecation of the Microsoft Graph Toolkit (MGT). The retirement period begins September 1st, 2025 with full retirement planned for August 28th, 2026. Why we’re retiring this toolkit...
https://devblogs.microsoft.com/microsoft365dev/microsoft-graph-toolkit-retirement/
5 months ago
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Vacation mode ON.
5 months ago
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Dev Proxy v1.0 with new features for building robust AI-powered apps
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Dev Proxy v1.0 with new features for building robust AI-powered apps - Microsoft 365 Developer Blog
Introducing Dev Proxy v1.0, with new language model-specific testing capabilities to help developers build more reliable AI-powered applications by simulating real-world scenarios and tracking resource...
https://devblogs.microsoft.com/microsoft365dev/dev-proxy-v1-0-with-new-features-for-building-robust-ai-powered-apps/
6 months ago
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