Get list of available companies to ensure correct context.
AI agents call get_companies 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 a list of companies from ERPNext—a metadata query with no side effects, no financial operations, and no data modification. It functions similarly to other Read operations on the server (get_doctypes, get_list_data, get_document). Severity is low because the blast radius of misuse is minimal: an agent querying company lists poses no risk to data integrity, financial state, or system availability.
From the tool's definition Tool name 'get_companies' and description 'Get list of available companies' indicate data retrieval with no modification. The verb 'Get' and framing as a listing operation confirm read-only semantics.
Attacks that exploit this kind of access
Get list of available companies to ensure correct context. 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_companies: 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_companies 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_companies 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_companies. 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_companies 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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