# applyMaterial

A write tool on the Spline MCP Server MCP server.

Agent View of the PolicyLayer registry record for `applyMaterial`. HTML page: https://policylayer.com/tools/aydinfer-spline-mcp-server/applymaterial

## Facts

- Tool: `applyMaterial`
- Server: Spline MCP Server (`aydinfer/spline-mcp-server`) — https://policylayer.com/tools/aydinfer-spline-mcp-server.md
- Homepage: https://github.com/aydinfer/spline-mcp-server
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "applyMaterial",
    "arguments": {}
  }
}
```

## Why applyMaterial is rated Medium

Applying a material to a 3D object in a design tool is a reversible Write operation that modifies scene state. It doesn't execute arbitrary code, delete data, or move financial resources. The medium severity reflects that an AI agent could alter the visual design of a scene in unintended ways, but changes can be undone.

From the tool's own definition: "Tool name 'applyMaterial' indicates modification of material properties on 3D objects. The sibling tools like 'addMaterialLayer', 'addCamera', and 'addHanaEffect' all perform reversible design operations within Spline."

## Use case

AI agents use applyMaterial 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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Spline MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "applyMaterial": {
      "limits": [
        {
          "counter": "applymaterial_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Spline MCP Server (144)

- `deleteAction` — Destructive — https://policylayer.com/tools/aydinfer-spline-mcp-server/deleteaction.md
- `deleteApi` — Destructive — https://policylayer.com/tools/aydinfer-spline-mcp-server/deleteapi.md
- `deleteMaterialLayer` — Destructive — https://policylayer.com/tools/aydinfer-spline-mcp-server/deletemateriallayer.md
- `deleteObject` — Destructive — https://policylayer.com/tools/aydinfer-spline-mcp-server/deleteobject.md
- `deleteSnapshot` — Destructive — https://policylayer.com/tools/aydinfer-spline-mcp-server/deletesnapshot.md
- `deleteWebhook` — Destructive — https://policylayer.com/tools/aydinfer-spline-mcp-server/deletewebhook.md
- `applyEffectorToCloner` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/applyeffectortocloner.md
- `applyForce` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/applyforce.md
- `applySculptingBrush` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/applysculptingbrush.md
- `applyTorque` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/applytorque.md
- `controlHanaAnimation` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/controlhanaanimation.md
- `controlParticleSystem` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/controlparticlesystem.md
- `controlPathAnimation` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/controlpathanimation.md
- `convertMeshToGaussianSplatting` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/convertmeshtogaussiansplatting.md
- `createGaussianSplattingFromImages` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/creategaussiansplattingfromimages.md
- `exportSceneCode` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/exportscenecode.md
- `generateAnimationCode` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/generateanimationcode.md
- `generateObjectCode` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/generateobjectcode.md
- `generateTextWithOpenAI` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/generatetextwithopenai.md
- `navigateBetweenScenes` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/navigatebetweenscenes.md
- `sendWebhookData` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/sendwebhookdata.md
- `triggerEvent` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/triggerevent.md
- `triggerHanaState` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/triggerhanastate.md
- `triggerState` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/triggerstate.md
- `triggerWebhook` — Execute — https://policylayer.com/tools/aydinfer-spline-mcp-server/triggerwebhook.md
- `configureApiRequestAction` — Other — https://policylayer.com/tools/aydinfer-spline-mcp-server/configureapirequestaction.md
- `configureConditionalAction` — Other — https://policylayer.com/tools/aydinfer-spline-mcp-server/configureconditionalaction.md
- `configureEventParameters` — Other — https://policylayer.com/tools/aydinfer-spline-mcp-server/configureeventparameters.md
- `createSnapshot` — Other — https://policylayer.com/tools/aydinfer-spline-mcp-server/createsnapshot.md
- `distributeAlongPath` — Other — https://policylayer.com/tools/aydinfer-spline-mcp-server/distributealongpath.md
- …and 114 more: https://policylayer.com/tools/aydinfer-spline-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=aydinfer-spline-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/aydinfer-spline-mcp-server