Zoom in the 3D view. Requires GUI mode. Args: factor: Zoom factor (>1 zooms in). Defaults to 1.5. doc_name: Document to zoom in. Uses active document if None. Returns: Dictionary with result: - success: Whether operation was successful
AI agents invoke zoom_in to trigger actions in FreeCAD Robust MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
Zooming changes the viewport state in the FreeCAD GUI, which is an external operation triggered in the application. It does not read, write, or destroy data, but it executes a GUI action. Severity is low since it only affects the visual zoom level and has no data impact.
From the tool's definition 'Zoom in the 3D view' — triggers a UI/viewport operation in FreeCAD's GUI mode, modifying the visual state of the 3D view.
Documented attack patterns abuse exactly the kind of access zoom_in 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 zoom_in:
{
"version": "1",
"default": "deny",
"tools": {
"zoom_in": {
"limits": [
{
"counter": "zoom_in_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}zoom_in stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Zoom in the 3D view. Requires GUI mode. Args: factor: Zoom factor (>1 zooms in). Defaults to 1.5. doc_name: Document to zoom in. Uses active document if None. Returns: Dictionary with result: - success: Whether operation was successful. It is categorised as a Execute tool in the FreeCAD Robust MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for zoom_in: 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.
zoom_in is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the zoom_in 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 zoom_in. 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.
zoom_in 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.