Ungroup a group node in Figma, moving children to its parent
AI agents use ungroup_nodes to create or update resources in Figma AI Bridge — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Figma AI Bridge environment.
Ungrouping is a write operation because it modifies the document structure by reorganizing node hierarchy. While reversible (can be re-grouped), it changes the document state and could disrupt design organization or grouped component logic. The impact is limited to structural changes without data loss or deletion, making it Write rather than Destructive.
From the tool's definition Tool name 'ungroup_nodes' and description 'moving children to its parent' indicate structural modification of design elements. This is a reversible operation that transforms the hierarchy of nodes within a Figma document.
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 Figma AI Bridge, 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.
Free to start. No card required.
Ungroup a group node in Figma, moving children to its parent. 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.
Register the Figma AI Bridge 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 Figma AI Bridge. 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 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.
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.
Free to start. No card required.
64 Figma AI Bridge tools catalogued and risk-classified — across an index of 43,000+ MCP servers.