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Connect Microsoft Outlook Calendar to Gemini CLI

Give Gemini CLI governed access to Microsoft Outlook Calendar’s 23 tools through Runlayer, with identity, policy, scanning, and audit on every call.

Book a demo Gemini CLI setup guide

Set up

Add Microsoft Outlook Calendar to Gemini CLI in four steps

Admins approve the server once. Everyone in Gemini CLI then gets it through the same governed connection.

  1. 1

    Approve Microsoft Outlook Calendar in Runlayer

    Add Microsoft Outlook Calendar from the catalog and choose who can use it and which of its tools are allowed.

  2. 2

    Connect Gemini CLI to Runlayer

    Users add the Runlayer Plugin to Gemini CLI by following Runlayer’s setup guide. Gemini CLI reaches Microsoft Outlook Calendar’s 23 tools through the Runlayer Plugin’s search and execute tools instead of listing each one.

    Gemini CLI setup guide
  3. 3

    Sign in to Microsoft Outlook Calendar

    Sign in the way Microsoft Outlook Calendar requires. Runlayer holds the credentials so they stay out of the client’s configuration.

  4. 4

    Use Microsoft Outlook Calendar from Gemini CLI

    Microsoft Outlook Calendar’s approved tools appear in Gemini CLI. Every call is checked against policy and recorded.

Tools

23 Microsoft Outlook Calendar tools in Gemini CLI

Runlayer policy decides which of these Gemini CLI users can call. 5 read data only and 2 can change or delete data.

  • Calendar accept event

    Accept an event invitation on the signed-in user's calendar.

  • Calendar cancel event

    Cancel an event the signed-in user organized and notify the attendees.

  • Calendar create event

    Create a new event on the signed-in user's primary calendar.

  • Calendar decline event

    Decline an event invitation on the signed-in user's calendar.

  • Calendar delete event

    Delete an event from the signed-in user's calendar.

  • Calendar find meeting times

    Suggest meeting times based on attendee availability.

  • Calendar get event

    Fetch a single calendar event by id.

  • Calendar get schedule

    Fetch free/busy information for one or more users, distribution lists, or resources (rooms/equipment).

See all 23 Microsoft Outlook Calendar tools

Control

What Runlayer can see and stop in Gemini CLI

Some controls apply to every client at the gateway. Others depend on what Gemini CLI exposes to Runlayer.

  • Gateway policy (available)

    Every Microsoft Outlook Calendar call from Gemini CLI passes through Runlayer, where your policies can allow, alert, mask, or block it.

  • Audit trail (available)

    Each call is recorded with the user, Gemini CLI as the client, the tool, and the policy and scanner decisions.

  • Client hooks (available)

    Capture supported prompts, reasoning, local and MCP tool calls, responses, and scanner decisions in real time.

  • Stop a call before it runs (available)

    Runlayer can deny a tool call before Gemini CLI runs it.

  • Block output after it runs (available)

    Runlayer can block a tool’s output before Gemini CLI’s model sees it.

  • Redact output in place (not available)

    Gemini CLI can only add text to a tool result, not replace it, so Runlayer blocks output it would otherwise mask. The gateway still applies policy to the call.

In Gemini CLI

  • Enforcement needs Gemini CLI 0.26.0 or newer.
  • When Runlayer blocks a call or its output, Gemini CLI shows the model the block reason instead.

Frequently asked questions

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