Get design tokens defined in the document
AI agents call get_tokens 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 design tokens from a document, which is a read-only query operation. There is no indication of data modification, deletion, execution of external code, or financial transactions. The blast radius of misuse is minimal—an AI agent could only access design token information already present in the document.
From the tool's definition Tool name 'get_tokens' and description 'Get design tokens defined in the document' indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
Get design tokens defined 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_tokens: 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_tokens 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_tokens 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_tokens. 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_tokens 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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