Get information about a document type including field names and document count
AI agents call sanity_get_type_info to retrieve information from Sanity MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query of schema metadata and document counts. It has no side effects, does not execute code, and does not create, modify, or delete any data. The blast radius of misuse is minimal — an attacker could only learn about the document structure and counts, which is low-risk information exposure.
From the tool's definition 'Get information about a document type including field names and document count' — retrieves metadata and statistics without modifying or deleting any data.
Attacks that exploit this kind of access
Get information about a document type including field names and document count. It is categorised as a Read tool in the Sanity MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Sanity MCP Server MCP server in PolicyLayer and add a rule for sanity_get_type_info: 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 Sanity MCP Server. Nothing to install.
sanity_get_type_info 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 sanity_get_type_info 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 sanity_get_type_info. 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.
sanity_get_type_info is provided by the Sanity MCP Server MCP server (purple-horizons/sanity-mcp). 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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