Generate a summary of recent emails organized by category. Shows unread counts and top emails in each category (Navy, Kids, Financial, Action Items).
AI agents call gmail_daily_summary to retrieve information from Gmail MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only reads and aggregates email data for presentation purposes. It does not create, modify, delete, or execute any operations. The server is explicitly described as having 'read-only access to your inbox', and this tool fits squarely within that constraint.
From the tool's definition Tool generates a summary of existing emails organized by category and shows unread counts and top emails—operations that retrieve and present data without modification. The description uses 'Generate a summary' and 'Shows', indicating passive data retrieval.
Attacks that exploit this kind of access
Generate a summary of recent emails organized by category. Shows unread counts and top emails in each category (Navy, Kids, Financial, Action Items). It is categorised as a Read tool in the Gmail MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Gmail MCP Server MCP server in PolicyLayer and add a rule for gmail_daily_summary: 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 Gmail MCP Server. Nothing to install.
gmail_daily_summary 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 gmail_daily_summary 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 gmail_daily_summary. 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.
gmail_daily_summary is provided by the Gmail MCP Server MCP server (murphy360/mcp_gmail). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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