Modify properties of an existing object. Args: object_name: Name of the object to modify properties: Dictionary of properties to modify (position, rotation, scale, etc.)
AI agents use modify_object to create or update resources in Cinema4D MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Cinema4D MCP Server environment.
This tool creates or modifies data reversibly within the Cinema4D scene. Users can change object properties like position, rotation, and scale, but these changes can be undone (undo/redo in Cinema4D). It does not execute arbitrary code, delete data irreversibly, or cause financial impact. The blast radius is limited to the current 3D scene and depends on which object is targeted and what properties are modified.
From the tool's definition The tool description states it 'Modify[ies] properties of an existing object' with arguments for 'position, rotation, scale, etc.' This is a reversible modification of existing 3D scene data.
Documented attack patterns abuse exactly the kind of access modify_object gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Cinema4D MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for modify_object:
{
"version": "1",
"default": "deny",
"tools": {
"modify_object": {
"limits": [
{
"counter": "modify_object_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}modify_object stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Modify properties of an existing object. Args: object_name: Name of the object to modify properties: Dictionary of properties to modify (position, rotation, scale, etc.). It is categorised as a Write tool in the Cinema4D MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Cinema4D MCP Server MCP server in PolicyLayer and add a rule for modify_object: 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 Cinema4D MCP Server. Nothing to install.
modify_object is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the modify_object 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 modify_object. 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.
modify_object is provided by the Cinema4D MCP Server MCP server (ttiimmaacc/cinema4d-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 25 Cinema4D MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
25 Cinema4D MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.