Run a SOQL query against QuickBooks Online. ONLY SELECT queries are permitted — INSERT/UPDATE/DELETE are rejected with QUERY_REJECTED. Example: SELECT * FROM Invoice WHERE TxnDate >=
AI agents call qbo_query to retrieve information from Kaizen Qbo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Despite being connected to a financial system (QuickBooks Online), this tool is strictly limited to SELECT queries that retrieve or query data with no modifications. The explicit rejection of INSERT/UPDATE/DELETE operations means it has no side effects and no ability to modify or destroy data. This makes it a Read operation at low severity.
From the tool's definition Tool description explicitly states 'ONLY SELECT queries are permitted — INSERT/UPDATE/DELETE are rejected with QUERY_REJECTED'. The tool name 'qbo_query' and the example 'SELECT * FROM Invoice' confirm it retrieves data without side effects.
Attacks that exploit this kind of access
Run a SOQL query against QuickBooks Online. ONLY SELECT queries are permitted — INSERT/UPDATE/DELETE are rejected with QUERY_REJECTED. Example: SELECT * FROM Invoice WHERE TxnDate >=. It is categorised as a Read tool in the Kaizen Qbo MCP Server, which means it retrieves data without modifying state.
Register the Kaizen Qbo MCP server in PolicyLayer and add a rule for qbo_query: 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 Kaizen Qbo. Nothing to install.
qbo_query 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 qbo_query 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 qbo_query. 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.
qbo_query is provided by the Kaizen Qbo MCP server (kaizen-qbo-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
qbo_query is one line of Kaizen Qbo's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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