triggerState
A execute tool on the Spline MCP server.
This record as markdown: /tools/aydinfer-spline-mcp-server/triggerstate.md
What triggerState does on Spline MCP Server
AI agents invoke triggerState to trigger actions in Spline 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 triggerState is rated High
The tool performs an action (triggering a state transition) in a 3D design system rather than merely reading data. This is Execute category because it runs an operation whose actual effects depend on the argument(s) specifying which state to trigger. It is not Destructive (state changes are typically reversible), Write (too broad—this is more specific action), or Read (it modifies system state).
From the tool's definition Tool name 'triggerState' combined with server context showing Spline 3D design operations and sibling tools like 'addHanaState' and 'addHanaInteraction' indicates this tool triggers state changes in the 3D design.
Attacks that exploit this kind of access
The rule that runs triggerState safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Spline MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For triggerState, this is the rule to start with:
triggerState 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 Spline MCP Server, apply this rule, and every triggerState call is checked against it from then on.
Questions about triggerState
triggerState is a execute tool on the Spline MCP Server MCP server. It is categorised as a Execute tool in the Spline MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Spline MCP Server MCP server in PolicyLayer and add a rule for triggerState: 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 Spline MCP Server. Nothing to install.
triggerState 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 triggerState 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 triggerState. 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.
triggerState is provided by the Spline MCP Server MCP server (aydinfer/spline-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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