Export objects to STEP format. STEP (Standard for the Exchange of Product Data) is an ISO standard for CAD data exchange, widely supported by CAD software. Args: file_path: Path for the output .step file. object_names: List of object names to export. Exports all visible if None. doc_name: Documen...
AI agents use export_step to create or update resources in FreeCAD Robust MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your FreeCAD Robust MCP Server environment.
This is a file creation/export operation that writes data to the filesystem. It modifies the file system state by creating a new .step file but is reversible (the file can be deleted). It does not execute arbitrary code, delete existing files, or cause financial impact.
From the tool's definition Tool creates a new STEP format file at a specified file path ('file_path: Path for the output .step file'). The operation writes CAD data to disk in a standardized exchange format.
Documented attack patterns abuse exactly the kind of access export_step gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and FreeCAD Robust MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for export_step:
{
"version": "1",
"default": "deny",
"tools": {
"export_step": {
"limits": [
{
"counter": "export_step_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}export_step 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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Export objects to STEP format. STEP (Standard for the Exchange of Product Data) is an ISO standard for CAD data exchange, widely supported by CAD software. Args: file_path: Path for the output .step file. object_names: List of object names to export. Exports all visible if None. doc_name: Document to export from. Uses active document if None. Returns: Dictionary with export result: - success: Whether export was successful - path: Path to exported file - object_count: Number of objects exported. It is categorised as a Write tool in the FreeCAD Robust MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for export_step: 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 FreeCAD Robust MCP Server. Nothing to install.
export_step 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 export_step 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 export_step. 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.
export_step is provided by the FreeCAD Robust MCP Server MCP server (spkane/freecad-addon-robust-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 152 FreeCAD Robust MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
152 FreeCAD Robust MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.