AI agents call get_daily_summary to retrieve information from Yazio MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves aggregate daily nutrition data from food logs without side effects. The name structure and server context indicate a query/retrieval operation. The empty description lowers confidence slightly, but the consistent pattern of sibling 'get_' tools and the server's stated querying capability support the Read classification. No modification, execution, destruction, or financial action occurs.
From the tool's definition Tool name 'get_daily_summary' is a read-only getter with no parameters for deletion or modification. Server description confirms the MCP tools 'enable querying Yazio food logs' with 'daily summaries' being retrievable.
Attacks that exploit this kind of access
get_daily_summary. It is categorised as a Read tool in the Yazio MCP MCP Server, which means it retrieves data without modifying state.
Register the Yazio MCP server in PolicyLayer and add a rule for get_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 Yazio MCP. Nothing to install.
get_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 get_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 get_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.
get_daily_summary is provided by the Yazio MCP server (psilolouben/yazio_mcp). 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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