AI agents use ungroup_nodes to create or update resources in Claude Talk to Figma MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Claude Talk to Figma MCP environment.
This tool creates or modifies design data (node hierarchy) reversibly. It does not delete data (Destructive), execute arbitrary code (Execute), or retrieve/query data (Read). The modification can be undone in Figma, placing it in Write category. Severity is medium because misuse could disrupt design organization and structure, affecting collaborative work, but changes are not permanent and can be easily reversed.
From the tool's definition Tool is named 'ungroup_nodes' with description 'Ungroup nodes in Figma'. Ungrouping modifies the structure of design elements by breaking apart grouped objects into individual nodes, which is a reversible structural modification.
Documented attack patterns abuse exactly the kind of access ungroup_nodes gives an agent:
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 ungroup_nodes:
{
"version": "1",
"default": "deny",
"tools": {
"ungroup_nodes": {
"limits": [
{
"counter": "ungroup_nodes_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
} ungroup_nodes 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.
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Ungroup nodes in Figma. 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.
Register the Claude Talk to Figma MCP server in PolicyLayer and add a rule for ungroup_nodes: 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.
ungroup_nodes 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 ungroup_nodes 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 ungroup_nodes. 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.
ungroup_nodes 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.
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.
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93 Claude Talk to Figma MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.