Exo Teams

exo-teams

Go CLI for Microsoft Teams using the internal (desktop app) API. No admin consent, no Graph API registration, no IT department. Tokens stored at ~/.exo-teams/.

Auth

Five token scopes, all acquired via device code OAuth (exo-teams auth):

| Token | Used for | |-------|----------| | skype | messaging, activity feed, read receipts | | chatsvcagg | teams/channels/chats listing | | teams | middle tier ops | | graph | calendar, files, search, user profiles | | assignments | education assignments via assignments.onenote.com (bypasses admin consent) |

Tokens auto-refresh. Check status with exo-teams whoami.

Skypetoken quirk: messaging uses Authentication: skypetoken= header, NOT Authorization: Bearer. The skypetoken is derived from the raw skype JWT via an authz exchange endpoint.

Quick Start

exo-teams auth                              # device code login
exo-teams whoami                            # token status + account info
exo-teams list-teams                        # see all teams, channels, and channel IDs
exo-teams list-chats                        # all DMs and group chats with IDs

Command Reference

See references/commands.md for full flag docs. Quick map:

| Command | What it does | |---------|-------------| | auth [--import\|--refresh] | login, import from fossteams, or force refresh | | whoami | account info + per-token expiry | | list-teams | all teams + channels with IDs | | list-chats | all DMs + group chats with IDs | | get-messages | channel messages by name search or ID | | get-chat | DM/group chat messages | | send | send text to any conversation | | send-file --file | upload file to OneDrive, send share link | | new-dm | find user by name, open DM, send message | | files | list SharePoint files | | upload --path --file | upload to SharePoint | | download --path | download from SharePoint | | calendar [--days N] | upcoming calendar events (default 7 days) | | assignments [--classes] | all assignments with submission status | | submit --file | submit a file to an assignment | | deadlines | pending assignments sorted by due date | | unread | unread conversations at a glance | | activity | activity feed (mentions, replies, reactions) | | search | search messages + files | | mark-read | mark conversation as read |

All commands accept --json for machine-readable output.

Data Discovery Guide

See references/data-discovery.md for full patterns. Critical ones:

Find team/channel IDs:

exo-teams list-teams
# Output: == Team Name == / #channel-name   19:abc123@thread.tacv2

Find chat/DM IDs:

exo-teams list-chats
# Output: * [DM]  Person Name   19:abc@unq.gbl.spaces

Find your user ID:

exo-teams whoami --json
# or: exo-teams new-dm "their name" "" (prints found user ID to stderr)

Find assignment IDs:

exo-teams assignments --classes     # list class IDs
exo-teams assignments --json        # includes classId, id, submissionId

Key Gotchas

• Conversation IDs contain : and @ - they are always URL-encoded internally, but pass them raw to CLI args
• chat.hidden is unreliable - most active DMs have hidden=true, use list-chats not hidden filter
• annotationsSummary.emotions returns either []any or map[string]any depending on message
• File upload to DMs uses OneDrive ("Microsoft Teams Chat Files" folder) + share link, not AMS
• SharePoint upload (team files) uses Graph PUT to /groups/{id}/drive/root:/{path}:/content
• 423 on OneDrive upload means file is locked - tool auto-retries with deduped name up to 5 times
• Activity feed reads from a special conversation ID 48:notifications
• Unread status comes from isRead field on Chat which can be bool or null - null means read
• Search uses Graph /search/query with message + driveItem entity types (no Chat.Read needed)
• assignments command uses assignments.onenote.com API not Graph /education/ (bypasses admin consent)

Common Patterns

# Check what needs submitting today
exo-teams deadlines

# Read a specific channel
exo-teams get-messages "Academic Writing" --replies --count 50

# Read all messages ever (paginated)
exo-teams get-messages "General" --all

# Messages after a date
exo-teams get-messages "General" --since 2026-03-01

# Send a file to a DM
exo-teams send-file "19:abc@unq.gbl.spaces" --file report.pdf --message "here it is"

# Multi-file send
exo-teams send-file "19:abc@unq.gbl.spaces" --file a.pdf --file b.docx

# Download class material
exo-teams files "Academic Writing" --drive "Class Materials"
exo-teams download "Academic Writing" --path "Class Materials/week1.pdf" --drive "Class Materials"

# Submit assignment
exo-teams submit "Academic Writing" "Essay 1" --file essay.docx

# Export channel to JSON
exo-teams get-messages "General" --all --json > general.json

Scripting Patterns

See references/scripting.md for full automation examples including:

• Fetch all pending assignments + download class materials
• Monitor channel for new messages (poll loop)
• Export full conversation to markdown
• Bulk-send files across multiple conversations

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: alxxpersonal
• Source: alxxpersonal/forge
• License: MIT

Install and usage instructions live in the source repository linked above.