Compare multiple CPG product prices against Amazon category benchmarks. Use when a brand manager asks: how do my products compare to competitors? Which of my SKUs is overpriced? How do we stack up against the market? Replaces manual store walks and spreadsheet price comparisons. Returns percentil...
Part of the PricePilot server.
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AI agents call compare_products to retrieve information from PricePilot without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though compare_products only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"compare_products": {}
}
}See the full PricePilot policy for all 6 tools.
These attack patterns abuse exactly the kind of access compare_products gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Compare multiple CPG product prices against Amazon category benchmarks. Use when a brand manager asks: how do my products compare to competitors? Which of my SKUs is overpriced? How do we stack up against the market? Replaces manual store walks and spreadsheet price comparisons. Returns percentile rank, market position, and distance from category median for each product. Args: products: List of products, each with 'name' (string) and 'price' (float in dollars) category: Category name — Grocery, Health & Beauty, Household, or Pet Supplies. It is categorised as a Read tool in the PricePilot MCP Server, which means it retrieves data without modifying state.
Register the PricePilot MCP server in PolicyLayer and add a rule for compare_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 PricePilot. Nothing to install.
compare_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 compare_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 compare_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.
compare_products is provided by the PricePilot MCP server (scott-noa4/PricePilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 6 PricePilot tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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