m365-copilot-extensions

Secure Microsoft 365 Copilot extensions require rigorous patterns for declarative agents, API plugins, Graph connectors, and Teams message extensions. You must enforce OAuth 2.0 authentication, OpenAPI specs, and adaptive cards to prevent misconfigurations and hallucinations.

Declarative agents and API plugins require strong grounding instructions, valid OpenAPI specs, and OAuth 2.0 authentication. You also need adaptive card formatting and structured error handling to ensure secure, consistent behavior across Copilot runtimes.

Yes, you can use Graph connectors to improve data citation, search, and refinement in Microsoft 365 Copilot. You must define correct ingestion patterns and schema definitions to ensure your Copilot extensions ground responses accurately.

Yes, building Microsoft 365 Copilot extensions requires OpenAPI specs and adaptive cards. These are critical for API plugins to structure endpoints and format responses safely, preventing insecure deployments and inconsistent runtime behavior.

Test and debug Microsoft 365 Copilot extensions for end-to-end readiness using structured validation workflows. The process includes bilingual Korean and English testing to verify grounding, authentication, and adaptive card behavior across Copilot runtimes.