AI agents call search_heroes to retrieve information from 聚义厅MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a query/search operation to find and retrieve hero character data based on keywords. It has no side effects, does not modify data, does not execute code, and does not delete anything. It is a pure information retrieval function, clearly falling under the Read category with low severity.
From the tool's definition Tool name 'search_heroes' and description '根据关键词搜索匹配的英雄角色' (search for matching hero characters by keywords) indicates a search operation that retrieves data without modification.
Attacks that exploit this kind of access
根据关键词搜索匹配的英雄角色. It is categorised as a Read tool in the 聚义厅MCP MCP Server, which means it retrieves data without modifying state.
Register the 聚义厅 MCP server in PolicyLayer and add a rule for search_heroes: 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 聚义厅MCP. Nothing to install.
search_heroes 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_heroes 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_heroes. 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_heroes is provided by the 聚义厅 MCP server (juyitingmcp/juyitingmcp). 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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