List all rendering events (draw calls) captured by the Frame Debugger. The Frame Debugger must be enabled first. Returns event index, type, and name for each draw call.
AI agents call unity_debugger_events to retrieve information from Unity MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves debugging information about rendering events from Unity's Frame Debugger. It performs a read-only operation that collects diagnostic data without modifying project state, assets, or any other data. There is no execution of code, creation/deletion of resources, or financial impact.
From the tool's definition Tool description states it 'List[s] all rendering events (draw calls) captured by the Frame Debugger' and 'Returns event index, type, and name for each draw call.' The verb 'list' and 'returns' indicate data retrieval with no modification or side effects.
Documented attack patterns abuse exactly the kind of access unity_debugger_events gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Unity MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for unity_debugger_events:
{
"version": "1",
"default": "deny",
"tools": {
"unity_debugger_events": {}
}
}unity_debugger_events is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all rendering events (draw calls) captured by the Frame Debugger. The Frame Debugger must be enabled first. Returns event index, type, and name for each draw call. 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_debugger_events: 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_debugger_events 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_debugger_events 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_debugger_events. 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_debugger_events 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.
Deterministic rules across all 324 Unity MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
324 Unity MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.