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teams

Send messages to Microsoft Teams channels and chats via Graph API.

Skill by dexter

IndexedApache-2.0★ 1
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/emiliougarte65-teams

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Send messages to Microsoft Teams channels and chats via Graph API. List teams, post to channels, and send direct chat messages. Trigger: "teams", "microsoft teams", "send to teams", "teams channel", "teams chat", "team message".

Use cases: backend

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found
Runs as
Python package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/teams

Tools it pre-approves 1

From allowed-tools in SKILL.md: the agent may use these without asking you each time.

  • Bash

What's inside

Skill name
teams
Description
Send messages to Microsoft Teams channels and chats via Graph API. List teams, post to channels, and send direct chat messages. Trigger: "teams", "microsoft teams", "send to teams", "teams channel", "teams chat", "team message".
License
Apache-2.0
Allowed tools
Bash
Metadata
author: dexter · source: dexter · audited: true · version: 1.0
Instructions
47 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts
  • Pre-approves any shell command

Files (2)

  • SKILL.md
  • send.py · scripts/

SKILL.md (first lines)

# Microsoft Teams

Posts messages to Microsoft Teams channels and chats via the Microsoft Graph API.
Shares authentication credentials with the `outlook` skill (same Azure app registration).
Pure Python, no external dependencies.

## Setup

Uses the same Azure app registration as the `outlook` skill. Ensure these additional
API permissions are granted: `Team.ReadBasic.All`, `ChannelMessage.Send`, `Chat.ReadWrite` (Delegated).

```bash
export OUTLOOK_CLIENT_ID="your-client-id"
export OUTLOOK_CLIENT_SECRET="your-client-secret"
export OUTLOOK_TENANT_ID="your-tenant-id"
```

Token cache is shared with the `outlook` skill at `~/.dexter/outlook_token.json`.

## Usage

```bash
# List all teams the authenticated user belongs to
python3 skills/communications/teams/scripts/send.py list-teams

# Send a message to a team channel
python3 skills/communications/teams/scripts/send.py send-channel \
  --team-id "19:abc123..." \
  --channel-id "19:xyz456..." \
  --message "Deployment complete."

# Send a message to a 1:1 or group chat
python3 skills/communications/teams/scripts/send.py send-chat \
  --chat-id "19:abc@thread.v2" \
  --message "Hey, quick update."
```

## Notes

- Team and channel IDs are GUIDs or thread IDs — use `list-teams` to discover them.
- **No file attachments to external teams**: the script refuses to send messages with file
  attachment payloads if the team's `visibility` is `public` or if the tenant ID differs from `OUTLOOK_TENANT_ID`.
- Credentials are masked in all log output.
- Graph API base: `https://graph.microsoft.com/v1.0/`
- On first run, OAuth2 device flow is triggered (same as the `outlook` skill).

From EmilioUgarte65/Dexter, Apache-2.0.

More from EmilioUgarte65/Dexter

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Stars
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Forks
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Last commit (this folder)
Mar 25, 2026 (7 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Version
1.0
License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

More from dexter

Cite this page

teams skill. Agent Mart. https://agentmart.dev/skills/emiliougarte65-teams (last updated 2026-10-24)