Get the computed layout rectangles for nodes in the document
AI agents call get_layout to retrieve information from AI-Canvas MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves computed layout information (rectangles for nodes) from a design document, which is a pure read operation with no side effects, no data modification, no code execution, and no destructive actions. It falls squarely into the Read category as a query/fetch operation on design state.
From the tool's definition Tool name 'get_layout' and description 'Get the computed layout rectangles for nodes in the document' indicates retrieval of layout data with no modification or execution of external operations.
Attacks that exploit this kind of access
Get the computed layout rectangles for nodes in the document. It is categorised as a Read tool in the AI-Canvas MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AI-Canvas MCP Server MCP server in PolicyLayer and add a rule for get_layout: 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 AI-Canvas MCP Server. Nothing to install.
get_layout is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_layout 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 get_layout. 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.
get_layout is provided by the AI-Canvas MCP Server MCP server (laoluojuhai/ai-canvas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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