Get a list of available DocTypes in relevant modules (Accounts, Stock, Selling, Buying, HR) to understand the schema.
AI agents call get_doctypes to retrieve information from ERPNext 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 metadata about available document types in ERPNext modules (Accounts, Stock, Selling, Buying, HR). It has no side effects—it only queries and returns information about the system schema. This is a read-only operation with minimal blast radius if misused by an AI agent, as it cannot create, modify, delete, or execute any business logic.
From the tool's definition Tool name 'get_doctypes' and description 'Get a list of available DocTypes' indicate a retrieval operation that returns schema information without modifying any data.
Attacks that exploit this kind of access
Get a list of available DocTypes in relevant modules (Accounts, Stock, Selling, Buying, HR) to understand the schema. It is categorised as a Read tool in the ERPNext MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ERPNext MCP Server MCP server in PolicyLayer and add a rule for get_doctypes: 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 ERPNext MCP Server. Nothing to install.
get_doctypes 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_doctypes 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_doctypes. 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_doctypes is provided by the ERPNext MCP Server MCP server (musab1khan/erpnext-mcp-server). 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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