Find combos that the provided cards enable (exact and almost-included).
AI agents call csb_find_combos_by_card_ids 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 searches and returns pre-computed combo information based on input card IDs. It is analogous to other retrieval tools listed on the server (get_card, get_rulings, autocomplete). The operation is read-only with no mutations or external execution. The severity is low because misuse would only return irrelevant combo suggestions, causing no harm to systems or data.
From the tool's definition Tool description states 'Find combos that the provided cards enable' — a pure retrieval operation that queries card combination data. The Scryfall API context confirms this is data lookup with no side effects.
Attacks that exploit this kind of access
Find combos that the provided cards enable (exact and almost-included). 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 csb_find_combos_by_card_ids: 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.
csb_find_combos_by_card_ids 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 csb_find_combos_by_card_ids 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 csb_find_combos_by_card_ids. 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.
csb_find_combos_by_card_ids is provided by the Scryfall MCP Server MCP server (latte-chan/scryfall-connector). 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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