# unified_search

Search across multiple Microsoft 365 content types (email, calendar events, files) in one query.

Agent View of the PolicyLayer registry record for `unified_search`. HTML page: https://policylayer.com/tools/0xka13b-microsoft-mcps/unified-search

## Facts

- Tool: `unified_search`
- Server: Microsoft MCP (`0xka13b/microsoft-mcps`) — https://policylayer.com/tools/0xka13b-microsoft-mcps.md
- Homepage: https://github.com/0xka13b/microsoft-mcps
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 3 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `limit` | integer | no | Max total results. Defaults to 50. |
| `query` | string | yes | Search query string |
| `entity_types` | array | no | Entity types to search. Defaults to [message, event, driveItem]. |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "unified_search",
    "arguments": {
      "query": "<query>"
    }
  }
}
```

## Why unified_search is rated Low

unified_search retrieves and queries data across email, calendar, and files without creating, modifying, or deleting content. This is a Read operation. Severity is medium (not low) because the search spans sensitive content types (emails, calendar events, files) that may contain confidential information; an AI agent with unbounded search could exfiltrate large volumes of sensitive data.

From the tool's own definition: "Tool performs 'Search across multiple Microsoft 365 content types (email, calendar events, files)' — a retrieval operation with no modification or deletion capability."

Risk signals: Accepts freeform code/query input (query)

## Use case

AI agents call unified_search to retrieve information from Microsoft MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Microsoft MCP:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "unified_search": {}
  }
}
```

## Other tools on Microsoft MCP (13)

- `delete_email` — Destructive — https://policylayer.com/tools/0xka13b-microsoft-mcps/delete-email.md
- `get_attachment` — Read — https://policylayer.com/tools/0xka13b-microsoft-mcps/get-attachment.md
- `get_email` — Read — https://policylayer.com/tools/0xka13b-microsoft-mcps/get-email.md
- `list_emails` — Read — https://policylayer.com/tools/0xka13b-microsoft-mcps/list-emails.md
- `me` — Read — https://policylayer.com/tools/0xka13b-microsoft-mcps/me.md
- `search_emails` — Read — https://policylayer.com/tools/0xka13b-microsoft-mcps/search-emails.md
- `create_email_draft` — Write — https://policylayer.com/tools/0xka13b-microsoft-mcps/create-email-draft.md
- `create_reply_draft` — Write — https://policylayer.com/tools/0xka13b-microsoft-mcps/create-reply-draft.md
- `move_email` — Write — https://policylayer.com/tools/0xka13b-microsoft-mcps/move-email.md
- `reply_all_email` — Write — https://policylayer.com/tools/0xka13b-microsoft-mcps/reply-all-email.md
- `reply_to_email` — Write — https://policylayer.com/tools/0xka13b-microsoft-mcps/reply-to-email.md
- `send_email` — Write — https://policylayer.com/tools/0xka13b-microsoft-mcps/send-email.md
- `update_email` — Write — https://policylayer.com/tools/0xka13b-microsoft-mcps/update-email.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=0xka13b-microsoft-mcps · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/0xka13b-microsoft-mcps