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):

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

Skypetoken quirk: messaging uses Authentication: skypetoken=<value> 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:

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