set_padding

THE RISK

Medium Risk

Why set_padding needs a policy

This tool modifies design metadata (padding values) on existing Figma frames, which is a reversible write operation. It does not execute arbitrary code, delete content, move money, or read-only query data. The blast radius is medium because incorrect padding changes could affect design layouts across a document, but the operation is fully reversible through undo or re-editing.

From the tool's definition Tool description states 'Set padding values for an auto-layout frame in Figma', which modifies design properties.

Documented attack patterns abuse exactly the kind of access set_padding gives an agent:

POLICY

How to control set_padding

PolicyLayer is an MCP gateway — it sits between your AI agents and Figma AI Bridge, and nothing reaches the server without passing your rules. This is the rule we recommend for set_padding:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_padding": {
      "limits": [
        {
          "counter": "set_padding_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

set_padding 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.

Create a free account and register Figma AI Bridge — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Figma AI Bridge tools

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All 64 Figma AI Bridge tools →

Write tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about set_padding

What does the set_padding tool do? +

Set padding values for an auto-layout frame in Figma. It is categorised as a Write tool in the Figma AI Bridge MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_padding? +

Register the Figma AI Bridge MCP server in PolicyLayer and add a rule for set_padding: 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 Figma AI Bridge. Nothing to install.

What risk level is set_padding? +

set_padding is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit set_padding? +

Yes. Add a rate_limit block to the set_padding 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.

How do I block set_padding completely? +

Set action: deny in the PolicyLayer policy for set_padding. 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.

What MCP server provides set_padding? +

set_padding is provided by the Figma AI Bridge MCP server (renfei-design/figma_ai_bridge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Figma AI Bridge tool call.

Start from Figma AI Bridge, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →