addHanaEffect
A write tool on the Spline MCP server.
This record as markdown: /tools/aydinfer-spline-mcp-server/addhanaeffect.md
What addHanaEffect does on Spline MCP Server
AI agents use addHanaEffect to create or update resources in Spline MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Spline MCP Server environment.
Why addHanaEffect is rated Medium
The 'add*' naming pattern in the Spline MCP context indicates creation or modification of design elements. This tool likely adds an effect to a Hana element (a Spline 3D design component), which is a reversible modification operation. This fits the Write category. Confidence is moderate (0.65) due to the empty description, but the naming convention and sibling tool patterns provide strong contextual support.
From the tool's definition Tool name 'addHanaEffect' and pattern consistency with sibling tools like 'addCamera', 'addDirectionalLight', 'addMaterialLayer', 'addObjectToUILayout', 'addPhysicsBody' that create/modify 3D scene elements. Tool description is empty.
Attacks that exploit this kind of access
The rule that runs addHanaEffect 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 addHanaEffect, this is the rule to start with:
addHanaEffect 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Spline MCP Server, apply this rule, and every addHanaEffect call is checked against it from then on.
Questions about addHanaEffect
addHanaEffect is a write tool on the Spline MCP Server MCP server. It is categorised as a Write tool in the Spline MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Spline MCP Server MCP server in PolicyLayer and add a rule for addHanaEffect: 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.
addHanaEffect 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 addHanaEffect 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 addHanaEffect. 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.
addHanaEffect 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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