Search and retrieve contacts from Microsoft Outlook for macOS
AI agents call outlook_contacts to retrieve information from Claude Outlook MCP Tool without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves contact information from Outlook without modifying, deleting, or executing operations. It is a pure query operation that fetches existing data. The risk is low because contact retrieval itself poses minimal security risk unless the contact database contains highly sensitive information, but the tool's capability is fundamentally read-only with no side effects.
From the tool's definition Tool description explicitly states 'Search and retrieve contacts' with no modification or deletion capabilities mentioned.
Documented attack patterns abuse exactly the kind of access outlook_contacts gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Claude Outlook MCP Tool, and nothing reaches the server without passing your rules. This is the rule we recommend for outlook_contacts:
{
"version": "1",
"default": "deny",
"tools": {
"outlook_contacts": {}
}
}outlook_contacts is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search and retrieve contacts from Microsoft Outlook for macOS. It is categorised as a Read tool in the Claude Outlook MCP Tool MCP Server, which means it retrieves data without modifying state.
Register the Claude Outlook MCP Tool MCP server in PolicyLayer and add a rule for outlook_contacts: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Claude Outlook MCP Tool. Nothing to install.
outlook_contacts is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the outlook_contacts rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for outlook_contacts. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
outlook_contacts is provided by the Claude Outlook MCP Tool MCP server (syedazharmbnr1/claude-outlook-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 3 Claude Outlook MCP Tool tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
3 Claude Outlook MCP Tool tools catalogued and risk-classified — across an index of 42,500+ MCP servers.