Get a specific item by its ID.
AI agents call get_item_by_id to retrieve information from FastAPI MCP Template without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves a single item from the database based on an ID parameter. It performs a read-only query operation that returns data without modifying, deleting, or executing any side effects.
From the tool's definition Tool name 'get_item_by_id' and description 'Get a specific item by its ID' indicate a retrieval operation with no modifications or side effects.
Attacks that exploit this kind of access
Get a specific item by its ID. It is categorised as a Read tool in the FastAPI MCP Template MCP Server, which means it retrieves data without modifying state.
Register the FastAPI MCP Template MCP server in PolicyLayer and add a rule for get_item_by_id: 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 FastAPI MCP Template. Nothing to install.
get_item_by_id 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_item_by_id 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_item_by_id. 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_item_by_id is provided by the FastAPI MCP Template MCP server (joonheeu/fastapi-mcp-server-template). 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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