Get the complete schema for a DocType including field definitions, validations, and linked DocTypes. Use this to understand the structure of a DocType before creating or updating documents.
AI agents call get_doctype_schema to retrieve information from Frappe MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns structural metadata about a DocType without creating, modifying, deleting, or executing any operations. It has no side effects and poses minimal risk if misused by an AI agent—the worst case is unnecessary schema inspection. It falls clearly into the Read category.
From the tool's definition Tool retrieves schema information ('Get the complete schema', 'field definitions', 'linked DocTypes') with no indication of modification or deletion.
Attacks that exploit this kind of access
Get the complete schema for a DocType including field definitions, validations, and linked DocTypes. Use this to understand the structure of a DocType before creating or updating documents. It is categorised as a Read tool in the Frappe MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Frappe MCP Server MCP server in PolicyLayer and add a rule for get_doctype_schema: 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 Frappe MCP Server. Nothing to install.
get_doctype_schema 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_doctype_schema 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_doctype_schema. 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_doctype_schema is provided by the Frappe MCP Server MCP server (kiran-harbak/frappe_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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