unity_prefab_info
Get detailed prefab information: overrides, variant status, added/removed components. Works on both prefab assets and scene instances.
This record as markdown: /tools/anklebreaker-studio-unity-mcp-server/unity-prefab-info.md
What unity_prefab_info does on Unity MCP Server
AI agents call unity_prefab_info to retrieve information from Unity MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why unity_prefab_info is rated Low
This tool performs information retrieval only. It queries prefab metadata and status without creating, modifying, deleting, or executing any operations. The read-only nature and lack of side effects place it squarely in the Read category with low severity, as exposing prefab metadata poses minimal security risk in a game development context.
From the tool's definition Tool description explicitly states 'Get detailed prefab information' with actions limited to retrieving 'overrides, variant status, added/removed components' from prefab assets and scene instances. No modification, deletion, or execution is mentioned.
Attacks that exploit this kind of access
The rule that runs unity_prefab_info safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Unity MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For unity_prefab_info, this is the rule to start with:
unity_prefab_info is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Unity MCP Server, apply this rule, and every unity_prefab_info call is checked against it from then on.
Questions about unity_prefab_info
Get detailed prefab information: overrides, variant status, added/removed components. Works on both prefab assets and scene instances. It is categorised as a Read tool in the Unity MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_prefab_info: 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 Unity MCP Server. Nothing to install.
unity_prefab_info 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 unity_prefab_info 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 unity_prefab_info. 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.
unity_prefab_info is provided by the Unity MCP Server MCP server (anklebreaker-studio/unity-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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