add-outlook

add-outlook is a skill for Claude Code from sliamh11/Deus. It costs 51 tokens per session (1,412 once invoked), scanned B, original, MIT.

An Outlook integration for Microsoft 365 email using Microsoft Graph, Microsoft's API for working with Microsoft services.

In plain words
What is it for?
Use it to read, send, search, and draft email, or to poll the inbox and reply to incoming conversations.
Why use it?
It lets an agent work with email without manually moving messages into the agent, either on request or by monitoring unread mail.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: names the AskUserQuestion tool.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is cd packages/mcp-outlook && npm install && npm run build && cd ../...

Good fit Use it to read, send, search, and draft email, or to poll the inbox and reply to incoming conversations.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/sliamh11/Deus
agentmods
npx agentmods add skills/sliamh11/deus/add-outlook

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for add-outlook

README.md
[![agentmods](https://agentmods.dev/badge/skills/sliamh11/deus/add-outlook/github.svg)](https://agentmods.dev/skills/sliamh11/deus/add-outlook)
Your own site
<a href="https://agentmods.dev/skills/sliamh11/deus/add-outlook"><img src="https://agentmods.dev/badge/skills/sliamh11/deus/add-outlook/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for add-outlook

Your own site · 80×15
<a href="https://agentmods.dev/skills/sliamh11/deus/add-outlook"><img src="https://agentmods.dev/badge/skills/sliamh11/deus/add-outlook.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,412 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 7 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 57
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 76
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 141
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Tool Misuse · line 123
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • medium Rogue Agent · line 56
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
  • medium MCP Rug Pull · line 91
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Privilege Escalation · line 83
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00051 $0.01412
Opus 5 $0.00026 $0.00706
Sonnet 5 $0.00010 $0.00282
Haiku 4.5 $0.00005 $0.00141

Measured 9d ago against content hash 7512c6387c04, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade B, and why

add-outlook scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo systemctl restart deus

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s -H "Authorization: Bearer $(jq -r .accessToken ~/.outlook-mcp/token.json)" \
.claude/skills/add-outlook/SKILL.md · 157 lines

How it starts

The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add Outlook Integration

Status: Available in-repo as packages/mcp-outlook/ (@deus-ai/outlook-mcp). The published npm package is not out yet, so the channel factory falls back to the in-repo build at packages/mcp-outlook/dist/index.js — you just build it locally (below).

Outlook is the email-channel analog of Gmail, built on the Microsoft Graph API. It polls the inbox for unread mail, forwards each conversation to the agent, and replies in-thread. It also exposes tools (read, send, search, draft).

Phase 1: Pre-flight

Ask the user

Use AskUserQuestion:

AskUserQuestion: Should incoming emails be able to trigger the agent?

  • Yes — Full channel mode: the agent listens on the Outlook inbox and responds to incoming emails automatically.
  • No — Tool-only: the agent gets full Outlook tools (read, send, search, draft) but won't monitor the inbox. No channel code is added.

Phase 2: Setup

Azure AD app registration

Tell the user:

I need you to register an Azure AD application for Microsoft Graph:

  1. Open https://portal.azure.comMicrosoft Entra IDApp registrationsNew registration. Copy the Application (client) ID and Directory (tenant) ID.
  2. Go to API permissionsAdd a permissionMicrosoft GraphDelegated permissions, and add: Mail.Read, Mail.Send, Mail.ReadWrite, offline_access, User.Read. Click Grant admin consent (or have a tenant admin grant it).
  3. Under Authentication → Advanced settings, enable Allow public client flows (required for the device-code sign-in).

Tell me the Application (client) ID and Directory (tenant) ID, or paste the values here.

Auth is delegated, device-code only (a user signs in once). The confidential (clientSecret / app-only) flow is not supported.

Store the app credentials (no personal values belong in this skill — these go in the user's local config):

mkdir -p ~/.outlook-mcp
# Written by setup: ~/.outlook-mcp/app-credentials.json
#   { "clientId": "...", "tenantId": "..." }

Read the full file on GitHub · 157 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 157 lines · 51 tokens per session scan B 7512c6387c04

Subscribe to this mod's changes

add-outlook is a skill published in the GitHub repository sliamh11/Deus (51 stars, last pushed 3d ago), licensed MIT. It adds 51 tokens to every session and 1,412 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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