This record as markdown: /tools/hybridlabor-api-aos/group-objects.md
What group_objects does on Aos
AI agents use group_objects to create or update resources in Aos, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Aos environment.
Why group_objects is rated Medium
Grouping objects is a reversible modification that changes how objects are organized/structured in the 3D model, but doesn't destroy data, execute scripts, or create financial obligations. This fits the Write category. Severity is medium because while grouping is non-destructive, misuse in a complex CAD workflow could cause confusion or require manual ungrouping to recover proper object hierarchy.
From the tool's definition Tool name 'group_objects' and description 'Group objects together' indicate a modification operation that organizes/structures existing geometry without deletion or execution of arbitrary code.
Attacks that exploit this kind of access
The rule that runs group_objects safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Aos, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For group_objects, this is the rule to start with:
group_objects 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Aos, apply this rule, and every group_objects call is checked against it from then on.
Questions about group_objects
Group objects together. It is categorised as a Write tool in the Aos MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Aos MCP server in PolicyLayer and add a rule for group_objects: 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 Aos. Nothing to install.
group_objects 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 group_objects 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 group_objects. 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.
group_objects is provided by the Aos MCP server (@hybridlabor-api/aos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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