cac_ltv
CAC, LTV & Payback Calculator — Customer acquisition cost, lifetime value, LTV:CAC ratio and payback months.
This record as markdown: /tools/com-wingmanprotocol-agent-gateway/cac-ltv.md
What cac_ltv does on Gateway
AI agents call cac_ltv to retrieve information from Gateway without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
arpu_monthly | number | — | Average monthly revenue per customer, USD |
new_customers | number | Yes | New customers acquired in the period |
marketing_spend | number | — | Total sales+marketing spend in the period, USD |
gross_margin_pct | number | — | Gross margin percent on that revenue (default 100) |
monthly_churn_pct | number | — | Monthly logo/revenue churn percent |
Parameters from the server's own tool schema.
Why cac_ltv is rated Low
This is a calculator that takes financial inputs and computes derived metrics (Customer Acquisition Cost, Lifetime Value, ratios, payback periods). It performs read-only computations on provided data with no side effects, no state changes, no money movement, and no code execution.
From the tool's definition Tool name 'cac_ltv' and description 'CAC, LTV & Payback Calculator — Customer acquisition cost, lifetime value, LTV:CAC ratio and payback months' indicate calculation and analysis of financial metrics without modifying data or moving money.
Attacks that exploit this kind of access
The rule that runs cac_ltv safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cac_ltv, this is the rule to start with:
cac_ltv is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Gateway, apply this rule, and every cac_ltv call is checked against it from then on.
Questions about cac_ltv
CAC, LTV & Payback Calculator — Customer acquisition cost, lifetime value, LTV:CAC ratio and payback months. It is categorised as a Read tool in the Gateway MCP Server, which means it retrieves data without modifying state.
cac_ltv accepts 5 parameters: arpu_monthly, new_customers, marketing_spend, gross_margin_pct, monthly_churn_pct. Required: new_customers. The full parameter table on this page comes from the server's own tool schema.
Register the Gateway MCP server in PolicyLayer and add a rule for cac_ltv: 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 Gateway. Nothing to install.
cac_ltv 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 cac_ltv 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 cac_ltv. 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.
cac_ltv is provided by the Gateway MCP server (https://wingmanprotocol.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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