Look up the full nutritional profile (calories, protein, carbs, fat, fibre, and key micronutrients) for any food by name and serving size. Use this when someone asks about the nutrition or macros in a specific food.
AI agents call lookup_nutrition to retrieve information from NutriBalance without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves nutritional information from a food database without creating, modifying, deleting, or executing any operations. It has minimal blast radius—incorrect nutrition lookups might provide misleading dietary information, but cannot cause data loss, financial harm, or system compromise. Classification as Read is appropriate.
From the tool's definition Tool description states it 'Look[s] up the full nutritional profile' for food data, which is a retrieval operation with no side effects. The verb 'look up' and the context of querying an existing nutritional database indicate read-only behavior.
Attacks that exploit this kind of access
Look up the full nutritional profile (calories, protein, carbs, fat, fibre, and key micronutrients) for any food by name and serving size. Use this when someone asks about the nutrition or macros in a specific food. It is categorised as a Read tool in the NutriBalance MCP Server, which means it retrieves data without modifying state.
Register the NutriBalance MCP server in PolicyLayer and add a rule for lookup_nutrition: 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 NutriBalance. Nothing to install.
lookup_nutrition 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 lookup_nutrition 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 lookup_nutrition. 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.
lookup_nutrition is provided by the NutriBalance MCP server (thenutritrackerapp-creator/nutribalance-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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