Microsoft 365

Microsoft Graph Skill

Provides Microsoft 365 data access via the Microsoft Graph API. Two operating modes:

Mode 1 — LLM-less Scan Scripts (Scheduled)

Four scripts run autonomously on a schedule without involving an LLM:

Common CLI arguments

--since     Lookback window, e.g. 1h, 4h, 24h, 7d  (default: 1h)
--output    Path for JSON output                     (default: m365-inbox.json)
--relay     Path to a script or webhook to call when items are found
--role      Role name passed to the relay for routing

Per-script additional arguments

How results are delivered

1. If no items are found the script exits silently (exit code 0).
2. If items are found they are appended (not overwritten) to --output as a JSON array.
3. If --relay is provided the script calls:

   python3 <relay> --role <role> --data <output_path>
   

   The relay script is called with the found items and is responsible for any further routing or notification.

Output record shape

Every item in the output JSON array has the following fields:

{
  "source":  "email | teams | calendar | sharepoint",
  "ts":      "2026-04-04T11:00:00+00:00",
  "summary": "one-line description",
  "detail":  { /* raw API fields */ },
  "urgent":  false
}

Example cron entry

0 * * * *  cd /path/to/project && python3 scripts/scan-email.py --since 1h --relay scripts/notify.py --role triage

Mode 2 — Interactive Query via Claude (Bash Tool)

scripts/query.py is called by Claude during a session when the user asks about their Microsoft 365 data.

Typed subcommands (recommended):

python3 scripts/query.py email --filter "isRead eq false" --select "subject,from" --top 20
python3 scripts/query.py teams channels --team-id TEAM_ID
python3 scripts/query.py teams messages --team-id TEAM_ID --channel-id CHANNEL_ID --top 20
python3 scripts/query.py calendar --start 2026-04-04 --end 2026-04-11
python3 scripts/query.py sharepoint files --drive-id DRIVE_ID --path /Documents

Sample file mode:

python3 scripts/query.py --sample samples/email/unread-today.yaml

Raw endpoint mode:

python3 scripts/query.py --endpoint "/me/messages" --filter "isRead eq false" --select "subject,from" --top 20
python3 scripts/query.py --endpoint "/me/calendarView" --params "startDateTime=2024-01-01T00:00:00Z&endDateTime=2024-01-07T23:59:59Z"

Results are printed as pretty-printed JSON to stdout. Claude reads and summarises them for the user. All pages are fetched automatically via @odata.nextLink pagination.

Sample YAML files in samples/ describe pre-built queries that Claude can run by name.

Authentication

Scripts auto-install Python dependencies (from requirements.txt) into ~/.msgraph-skill/.venv/ on first run — no manual pip install or venv creation needed. A built-in Azure AD app ID is used by default, so no environment variables or Azure portal setup is required for most users.

Token cache is stored at ~/.msgraph-skill/token_cache.json (shared across all projects — authenticate once, use everywhere).

Login flow (important for Claude)

The default login opens an interactive browser (auth-code + PKCE on a localhost redirect). This passes Conditional Access policies that block the device-code flow. Because it needs a browser + a local redirect listener, ask the user to run it in their own terminal:

python3 scripts/auth.py login            # Browser auth-code+PKCE (default)
python3 scripts/auth.py status           # Check token validity
python3 scripts/auth.py logout           # Clear cached credentials

If the browser flow can't be used (no GUI / SSH), fall back:

python3 scripts/auth.py login device     # Device-code — relay LOGIN_URL/LOGIN_CODE to user
python3 scripts/auth.py login authcode   # Browser via nativeclient redirect (manual URL paste)

For login device, the output contains LOGIN_URL=... and LOGIN_CODE=... — relay both to the user. Note: many tenants block device-code via Conditional Access ("...an authentication flow that is restricted by your admin"); prefer the default browser flow.

Environment variables (optional)

Variables can be set via environment or in a .env file at the skill root or cwd. Most users do not need to set these.

Custom Azure AD app (advanced)

If your organisation blocks third-party app IDs or you need additional permissions, register your own Azure AD app:

1. Azure portal → App registrations → New registration.
2. Add delegated permissions: Mail.Read, Calendars.Read, Team.ReadBasic.All, Channel.ReadBasic.All, Sites.Read.All, Files.Read.All.
3. Under Authentication → Add platform → Mobile and desktop, enable the http://localhost redirect URI (required for the default browser flow).
4. Set MSGRAPH_CLIENT_ID=<your-app-id> in your .env and re-run login.

Installation

Claude Code plugin marketplace

/plugin marketplace add arozumenko/sdlc-skills
/plugin install microsoft-365@sdlc-skills

Direct install via npx

npx github:arozumenko/sdlc-skills init --skills microsoft-365 --target claude

Python dependencies are installed automatically into ~/.msgraph-skill/.venv/ on first script run — no manual setup needed.

First-time authentication

python3 scripts/auth.py login

Known issues / troubleshooting

• Conditional Access blocks device-code — Error: "Your sign-in was successful but does not meet the criteria to access this resource ... an authentication flow that is restricted by your admin." Many tenants block the device-code flow via Conditional Access. This is why the default login now uses the interactive browser (auth-code + PKCE) flow. If you still see this message after the browser sign-in, the CA policy is keying on device compliance / managed app / location rather than the auth flow — that needs your tenant admin (check Entra → Sign-in logs → your sign-in → Conditional Access tab for the exact policy).

• AADSTS50011 redirect URI mismatch — The configured MSGRAPH_CLIENT_ID app has no http://localhost redirect registered. The default app does; if you override it with your own app, register the http://localhost redirect (Authentication → Mobile and desktop applications). The legacy device-code flow (login device) needs no redirect URI if you must avoid this.

• Default app is a shared public client — 3d7688c6-... is a third-party public-client app reused because it has the http://localhost redirect. It is not controlled by this project. For a durable / auditable setup, register your own Azure AD app (see Custom Azure AD app above) and set MSGRAPH_CLIENT_ID.

• Teams scopes may not consent on the default app — The default app's registered scopes do not include Team.ReadBasic.All / Channel.ReadBasic.All. Mail, calendar, and SharePoint work; Teams scans may fail with a consent error. Use your own app registration with all six delegated permissions if you need Teams.