Bring Microsoft 365 features into your developer workflow. With custom skills, GitHub Copilot accesses SharePoint, Teams, and more.

Why M365 Integration?

Developers often need information from:

• SharePoint – Documentation, specifications
• Teams – Communication, decisions
• Planner – Tasks, deadlines
• Outlook – Emails, calendar

Architecture

Microsoft Graph API

[GitHub Copilot] → [Custom Skill] → [Microsoft Graph] → [M365]
                          ↓
                   [Azure AD Auth]

Authentication

• Azure AD App Registration
• Delegated or Application Permissions
• Secure Token Storage

SharePoint Skills

Document Search

export const searchDocs: SkillAction = async (params) => {
  const { query, site } = params;
  
  const results = await graphClient
    .api(`/sites/${site}/drive/root/search(q='${query}')`)
    .get();
    
  return formatSearchResults(results);
};

Usage in Copilot: "Search in SharePoint for API documentation for Project Alpha"

List Access

export const getListItems: SkillAction = async (params) => {
  const { listName, filter } = params;
  
  const items = await graphClient
    .api(`/sites/root/lists/${listName}/items`)
    .filter(filter)
    .get();
    
  return items;
};

Usage: "Show all open bugs from the SharePoint list"

Document Preview

export const getDocPreview: SkillAction = async (params) => {
  const { documentId } = params;
  
  const preview = await graphClient
    .api(`/me/drive/items/${documentId}/preview`)
    .get();
    
  return { previewUrl: preview.getUrl };
};

Teams Integration

Channel Messages

export const searchMessages: SkillAction = async (params) => {
  const { teamId, channelId, query } = params;
  
  const messages = await graphClient
    .api(`/teams/${teamId}/channels/${channelId}/messages`)
    .search(query)
    .get();
    
  return messages;
};

Usage: "Find discussions about the deployment process in the Dev Team"

Meeting Notes

export const getMeetingNotes: SkillAction = async (params) => {
  const { meetingId } = params;
  
  const transcript = await graphClient
    .api(`/me/onlineMeetings/${meetingId}/transcripts`)
    .get();
    
  return summarize(transcript);
};

Practical Use Cases

Finding Specifications

Developer asks: "Where are the API specifications for the Payment Service?"

Skill responds: "Found in SharePoint: /Docs/Architecture/payment-api-spec-v2.docx (Last modified: 01/15/2026)"

Tracing Decisions

Developer asks: "Why did we choose PostgreSQL?"

Skill searches Teams and finds: "In the meeting on 12/10/2025, PostgreSQL was chosen due to better JSON support. See minutes..."

Task Context

Developer asks: "What are the acceptance criteria for Task #1234?"

Skill retrieves from Planner: "Task: Implement user authentication. Criteria: OAuth2, MFA support, session timeout 30min..."

Security and Permissions

Minimum Permissions

Sites.Read.All        - SharePoint access
Files.Read.All        - Document access
ChannelMessage.Read   - Teams messages
Tasks.Read            - Planner access

Conditional Access

• Only from trusted devices
• MFA requirement
• Geo-restrictions

CNEXT Expertise

We offer:

1. 1Skill Development – Custom M365 skills
2. 2Graph API Integration – Technical implementation
3. 3Security Review – Permissions optimization
4. 4Deployment – Enterprise rollout

Conclusion

M365 skills turn GitHub Copilot into a bridge-builder between development and business. All information in one place.

Further Links & Sources

Internal:

• Copilot in SharePoint
• SharePoint Agents
• Spec-Driven Development with VS Code
• Our SharePoint Services

External:

• GitHub Copilot Extensions
• Microsoft Graph API
• SharePoint Framework (SPFx)