replace_image_fill

THE RISK

Medium Risk

Why replace_image_fill needs a policy

The tool modifies existing content (replaces an image) but does so reversibly—the original image can be restored through undo or by replacing it again. This is characteristic of Write operations (create, update, modify). While it affects design assets, it does not delete or irreversibly destroy data (Destructive), execute arbitrary code (Execute), or involve financial transactions (Financial).

From the tool's definition Tool name: 'replace_image_fill'; description states 'Replace existing image on node with new image while preserving transform'. This modifies an existing design asset by substituting an image, which is a reversible alteration of data in Figma.

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

POLICY

How to control replace_image_fill

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

policy.json

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

replace_image_fill 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 Claude Talk to Figma MCP — 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 Claude Talk to Figma MCP tools

Destructive delete_node Delete a node from Figma Destructive delete_page Delete a page from the current Figma document Execute load_font_async Load a font asynchronously in Figma Write apply_image_transform Adjust image position, scale, and rotation within node. Rotates the IMAGE inside the node, Write apply_variable_to_node Bind a variable to a node property in Figma. Call once per field — for multiple fields, ca Write boolean_operation Perform a boolean operation (union, subtract, intersect, exclude) on two or more nodes. Al Write clone_node Clone an existing node in Figma Write convert_to_frame Convert a group or shape node into a frame in Figma. Preserves position, size, visual prop

All 93 Claude Talk to Figma MCP tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

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 replace_image_fill

What does the replace_image_fill tool do? +

Replace existing image on node with new image while preserving transform. It is categorised as a Write tool in the Claude Talk to Figma MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on replace_image_fill? +

Register the Claude Talk to Figma MCP server in PolicyLayer and add a rule for replace_image_fill: 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 Claude Talk to Figma MCP. Nothing to install.

What risk level is replace_image_fill? +

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

Can I rate-limit replace_image_fill? +

Yes. Add a rate_limit block to the replace_image_fill 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 replace_image_fill completely? +

Set action: deny in the PolicyLayer policy for replace_image_fill. 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 replace_image_fill? +

replace_image_fill is provided by the Claude Talk to Figma MCP server (arinspunk/claude-talk-to-figma-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Claude Talk to Figma MCP tool call.

Start from Claude Talk to Figma MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →