Get one or more random Magic: The Gathering cards
AI agents call get_random_card to retrieve information from Scryfall MCP Server 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 card data from Scryfall's database. It performs a read-only operation returning random cards without side effects. No data is created, modified, deleted, or executed. The worst-case misuse scenario is retrieving unwanted card information, which has negligible impact. Classification as Read is appropriate.
From the tool's definition Tool name is 'get_random_card' and description states 'Get one or more random Magic: The Gathering cards' — purely retrieves data with no modification, deletion, execution, or financial impact.
Attacks that exploit this kind of access
Get one or more random Magic: The Gathering cards. It is categorised as a Read tool in the Scryfall MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Scryfall MCP Server MCP server in PolicyLayer and add a rule for get_random_card: 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 Scryfall MCP Server. Nothing to install.
get_random_card 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_random_card 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_random_card. 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_random_card is provided by the Scryfall MCP Server MCP server (joemocode/scryfall-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_random_card is one line of Scryfall MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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