Get the hierarchical structure of standard categories with applicability context
AI agents call get_category_hierarchy to retrieve information from UK Government Technology Standards MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and presents categorical metadata from a curated standards database. It is a passive query operation with no side effects, state changes, code execution, or destructive capability. The blast radius of misuse is minimal—an AI agent cannot harm systems or data by accessing this informational structure.
From the tool's definition Tool name 'get_category_hierarchy' and description 'Get the hierarchical structure of standard categories with applicability context' indicate a retrieval operation that queries and returns structured information about categories without modifying, executing,…
Attacks that exploit this kind of access
Get the hierarchical structure of standard categories with applicability context. It is categorised as a Read tool in the UK Government Technology Standards MCP Server MCP Server, which means it retrieves data without modifying state.
Register the UK Government Technology Standards MCP Server MCP server in PolicyLayer and add a rule for get_category_hierarchy: 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 UK Government Technology Standards MCP Server. Nothing to install.
get_category_hierarchy 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_category_hierarchy 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_category_hierarchy. 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_category_hierarchy is provided by the UK Government Technology Standards MCP Server MCP server (Atksz98/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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