Resolve names via Scryfall → oracle_id, map to CSB IDs via cached index, then call find-my-combos.
AI agents call csb_find_combos_by_names 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 performs data retrieval and lookup operations only. It takes card names as input, translates them to identifiers using existing indices, and returns combo information from the CSB (Card Synergy Browser) database. There are no side effects—no data is created, modified, deleted, or executed as code.
From the tool's definition Tool resolves card names to IDs and retrieves combo data via cached index and find-my-combos API. Described operations are: resolve names, map to IDs, and lookup combos. No modifications, deletions, or external commands are executed.
Attacks that exploit this kind of access
Resolve names via Scryfall → oracle_id, map to CSB IDs via cached index, then call find-my-combos. 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_names: 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_names 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_names 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_names. 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_names 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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