根据卡牌名称搜索炉石传说卡牌信息
AI agents call search_cards to retrieve information from Hearthstone Decks without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The search_cards tool queries a card database by name to retrieve card metadata. It has no side effects, does not modify data, execute code, delete records, or move money. It is purely a read operation retrieving Hearthstone card information.
From the tool's definition Tool description indicates 'search' for 'card information' (搜索炉石传说卡牌信息). This is a retrieval operation with no modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
根据卡牌名称搜索炉石传说卡牌信息. It is categorised as a Read tool in the Hearthstone Decks MCP Server, which means it retrieves data without modifying state.
Register the Hearthstone Decks MCP server in PolicyLayer and add a rule for search_cards: 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 Hearthstone Decks. Nothing to install.
search_cards 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 search_cards 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 search_cards. 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.
search_cards is provided by the Hearthstone Decks MCP server (yinshawnrao/hearthstone-decks-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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