AI agents call wave_list_products to retrieve information from Waveapps without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves or queries product/service data from a Wave Accounting business. It has no side effects, does not create, modify, or delete data, and does not execute external operations or move money. This is a straightforward read operation on financial records metadata.
From the tool's definition Tool name 'wave_list_products' and description 'Lists products/services for a Wave business via REST' indicate retrieval of product data without modification.
Attacks that exploit this kind of access
Lists products/services for a Wave business via REST (. It is categorised as a Read tool in the Waveapps MCP Server, which means it retrieves data without modifying state.
Register the Waveapps MCP server in PolicyLayer and add a rule for wave_list_products: 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 Waveapps. Nothing to install.
wave_list_products 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 wave_list_products 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 wave_list_products. 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.
wave_list_products is provided by the Waveapps MCP server (lunaparker/waveapps-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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