Add a node to the currently open Amplify Shader Editor graph. The ASE window must be open with a shader loaded. Use unity_amplify_get_node_types to discover available node types first.
AI agents use unity_amplify_add_node to create or update resources in Unity MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Unity MCP Server environment.
This tool creates/adds a new node to a shader graph, which is a reversible write operation. It modifies the shader editor state by inserting a new node, but this can be undone. The blast radius is medium since misuse could corrupt shader graphs but is limited to the open shader editor.
From the tool's definition Add a node to the currently open Amplify Shader Editor graph
Documented attack patterns abuse exactly the kind of access unity_amplify_add_node 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_amplify_add_node:
{
"version": "1",
"default": "deny",
"tools": {
"unity_amplify_add_node": {
"limits": [
{
"counter": "unity_amplify_add_node_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}unity_amplify_add_node 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.
Free to start. No card required.
Add a node to the currently open Amplify Shader Editor graph. The ASE window must be open with a shader loaded. Use unity_amplify_get_node_types to discover available node types first. It is categorised as a Write tool in the Unity MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_amplify_add_node: 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_amplify_add_node 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 unity_amplify_add_node 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_amplify_add_node. 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_amplify_add_node 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.