AI agents call build_cubism_psd as a supporting operation in Live2D Automation MCP Server workflows.
The tool name suggests it builds a Cubism PSD file (a Photoshop Document used by Live2D Cubism), which would likely be a Write operation creating or generating a file. However, with no description available, the exact behavior cannot be confirmed. Based on sibling tools context (generate_layers, create_mesh, export_model), it likely creates/writes a PSD file. Confidence is low due to empty description.
From the tool's definition Tool name is 'build_cubism_psd' and description is empty/uninformative.
Documented attack patterns abuse exactly the kind of access build_cubism_psd gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Live2D Automation MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for build_cubism_psd:
{
"version": "1",
"default": "deny",
"tools": {
"build_cubism_psd": {
"limits": [
{
"counter": "build_cubism_psd_rate",
"window": "minute",
"max": 60,
"scope": "grant"
}
]
}
}
}build_cubism_psd gets a rate cap, and everything else on the server is denied unless you say otherwise.
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build_cubism_psd. It is categorised as a Other tool in the Live2D Automation MCP Server MCP Server, which means it performs auxiliary operations.
Register the Live2D Automation MCP Server MCP server in PolicyLayer and add a rule for build_cubism_psd: 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 Live2D Automation MCP Server. Nothing to install.
build_cubism_psd is a Other tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the build_cubism_psd 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 build_cubism_psd. 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.
build_cubism_psd is provided by the Live2D Automation MCP Server MCP server (j621111/live2d-automation). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Live2D Automation MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
17 Live2D Automation MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.