List direct subcategories of a Wikipedia category.
AI agents call get_subcat_table to retrieve information from Wikicitation without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries Wikipedia's category hierarchy structure and returns information without altering any data, executing code, or triggering external operations. It falls squarely within the Read category as a data retrieval function. The blast radius of misuse is minimal — an agent could only retrieve category metadata that is already publicly available on Wikipedia.
From the tool's definition Tool description states 'List direct subcategories of a Wikipedia category' — a retrieval operation with no modification, deletion, or execution of code. The verb 'List' indicates a read-only query operation.
Attacks that exploit this kind of access
List direct subcategories of a Wikipedia category. It is categorised as a Read tool in the Wikicitation MCP Server, which means it retrieves data without modifying state.
Register the Wikicitation MCP server in PolicyLayer and add a rule for get_subcat_table: 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 Wikicitation. Nothing to install.
get_subcat_table 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_subcat_table 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_subcat_table. 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_subcat_table is provided by the Wikicitation MCP server (jsobel1/wikicitation-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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