Prepare recording a supplier payment. High-risk approval required.
AI agents use myob_supplier_payment_prepare_record to commit financial operations through MYOB Codex MCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool initiates a supplier payment transaction — a financial obligation moving money to a vendor. Even in a 'prepare' stage, it stages a financial commitment that, once approved, transfers funds. The description explicitly flags it as 'High-risk', placing it firmly in the Financial category, which is the most severe. Misuse by an AI agent could result in unauthorized or erroneous payments to suppliers.
From the tool's definition 'Prepare recording a supplier payment. High-risk approval required.'
Attacks that exploit this kind of access
Prepare recording a supplier payment. High-risk approval required. It is categorised as a Financial tool in the MYOB Codex MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the MYOB Codex MCP server in PolicyLayer and add a rule for myob_supplier_payment_prepare_record: 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 MYOB Codex MCP. Nothing to install.
myob_supplier_payment_prepare_record is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the myob_supplier_payment_prepare_record 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 myob_supplier_payment_prepare_record. 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.
myob_supplier_payment_prepare_record is provided by the MYOB Codex MCP server (jaeko44/myob-codex-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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