Show configured TouchDesigner instances.
AI agents call list_instances to retrieve information from Touchdesigner without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves configuration information about running TouchDesigner instances. It performs a read-only operation that does not modify, execute, or delete anything. The blast radius of misuse is minimal—an attacker could only discover what instances are available, not interact with them directly via this tool alone.
From the tool's definition Tool name 'list_instances' and description 'Show configured TouchDesigner instances' indicate a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
Show configured TouchDesigner instances. It is categorised as a Read tool in the Touchdesigner MCP Server, which means it retrieves data without modifying state.
Register the Touchdesigner MCP server in PolicyLayer and add a rule for list_instances: 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 Touchdesigner. Nothing to install.
list_instances 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 list_instances 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 list_instances. 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.
list_instances is provided by the Touchdesigner MCP server (mrinalghosh/touchdesigner-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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