AI agents call chorus_list_invoices to retrieve information from Facturx without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists invoice data from Chorus Pro with filtering and pagination capabilities. It is a read-only operation that queries existing data without side effects, reversible modifications, code execution, or financial transactions.
From the tool's definition Tool name 'chorus_list_invoices' and description 'Liste les factures présentes sur Chorus Pro avec filtres optionnels par date, statut et pagination' indicate querying/listing existing invoices with optional filters.
Attacks that exploit this kind of access
Liste les factures présentes sur Chorus Pro avec filtres optionnels par date, statut et pagination. It is categorised as a Read tool in the Facturx MCP Server, which means it retrieves data without modifying state.
Register the Facturx MCP server in PolicyLayer and add a rule for chorus_list_invoices: 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 Facturx. Nothing to install.
chorus_list_invoices 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 chorus_list_invoices 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 chorus_list_invoices. 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.
chorus_list_invoices is provided by the Facturx MCP server (samdreamsmaker/facturx-mcp). 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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