Gets the current scene hierarchy.
AI agents call get_hierarchy to retrieve information from MCP For Unity without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and returns the current scene hierarchy structure from the Unity Editor. It performs no modifications, deletions, or external operations—it is purely informational. Even in the context of a tool that can manipulate Unity projects (as evidenced by sibling tools like delete_object, create_game_object, etc.), get_hierarchy is a safe read-only operation.
From the tool's definition Tool name 'get_hierarchy' and description 'Gets the current scene hierarchy' indicate a query operation that retrieves data without modification. The verb 'Gets' explicitly denotes data retrieval with no side effects.
Attacks that exploit this kind of access
Gets the current scene hierarchy. It is categorised as a Read tool in the MCP For Unity MCP Server, which means it retrieves data without modifying state.
Register the MCP For Unity MCP server in PolicyLayer and add a rule for get_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 MCP For Unity. Nothing to install.
get_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_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_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_hierarchy is provided by the MCP For Unity MCP server (yunuscan/mcpforunity). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_hierarchy is one line of MCP For Unity's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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