raytk_expr_graph_builder
Build an editable RayTK ROP expression graph from a preset or explicit nodes/edges: copy RayTK masters live via pathsByOpType/category search, wire typed connectors, apply simple parameter values, lay out copied nodes deterministically, and expose the selected output through out1. Complements cre...
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What raytk_expr_graph_builder does on tdmcp — TouchDesigner MCP server
AI agents invoke raytk_expr_graph_builder to trigger actions in tdmcp — TouchDesigner MCP server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why raytk_expr_graph_builder is rated High
This tool executes complex procedural operations—constructing and wiring RayTK render operator (ROP) graphs, copying operators, and triggering rendering/cooking—whose effects depend on the argument-supplied preset, nodes, edges, and parameters. While not directly destructive or financial, the tool runs code that modifies the TouchDesigner project state and initiates render operations.
From the tool's definition Tool performs 'Build an editable RayTK ROP expression graph', 'copy RayTK masters live', 'wire typed connectors', 'apply simple parameter values', 'lay out copied nodes deterministically', and 'expose the selected output through out1'.
Attacks that exploit this kind of access
The rule that runs raytk_expr_graph_builder safely
PolicyLayer is an MCP gateway: it sits between your AI agents and tdmcp — TouchDesigner MCP server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For raytk_expr_graph_builder, this is the rule to start with:
raytk_expr_graph_builder stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect tdmcp — TouchDesigner MCP server, apply this rule, and every raytk_expr_graph_builder call is checked against it from then on.
Questions about raytk_expr_graph_builder
Build an editable RayTK ROP expression graph from a preset or explicit nodes/edges: copy RayTK masters live via pathsByOpType/category search, wire typed connectors, apply simple parameter values, lay out copied nodes deterministically, and expose the selected output through out1. Complements create_raytk_scene (minimal scene) and create_raytk_op (single ROP). Requires RayTK staged and loaded; offline tests validate payload/registration only, while live render/cook proof remains explicit. It is categorised as a Execute tool in the tdmcp — TouchDesigner MCP server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the tdmcp — TouchDesigner MCP server MCP server in PolicyLayer and add a rule for raytk_expr_graph_builder: 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 tdmcp — TouchDesigner MCP server. Nothing to install.
raytk_expr_graph_builder is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the raytk_expr_graph_builder 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 raytk_expr_graph_builder. 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.
raytk_expr_graph_builder is provided by the tdmcp — TouchDesigner MCP server MCP server (@dpantani/tdmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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