[Amazon 类目商品列表] 按 Browse Node ID 列出该类目下的具体在售商品（分页，每页 24 条）。 Use when: 用户说"X 类目卖什么""列出类目 12345 下的商品""看这个类目都有些什么"；选品时拿到 categoryId 后看真实在售品；竞品调研时看类目铺货密度。 Don't use: 只想要 Top-50 龙头（用 list_bestsellers，更便宜信号更聚焦）；要类目聚合指标（销量/搜索量/竞品密度等用 filter_categories）；要利基 niche 而非整类目（用 filter_niches）。 Returns: data.jso...
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AI agents call list_category_products to retrieve information from Amazon Mcp 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 list_category_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": {
"list_category_products": {}
}
}See the full Amazon Mcp policy for all 20 tools.
These attack patterns abuse exactly the kind of access list_category_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.
[Amazon 类目商品列表] 按 Browse Node ID 列出该类目下的具体在售商品（分页，每页 24 条）。 Use when: 用户说"X 类目卖什么""列出类目 12345 下的商品""看这个类目都有些什么"；选品时拿到 categoryId 后看真实在售品；竞品调研时看类目铺货密度。 Don't use: 只想要 Top-50 龙头（用 list_bestsellers，更便宜信号更聚焦）；要类目聚合指标（销量/搜索量/竞品密度等用 filter_categories）；要利基 niche 而非整类目（用 filter_niches）。 Returns: data.json[0].data.{ pageIndex, maxPage, nextPage, categoryName, pagination, results[{ asin, title, price, star, rating, rank, img }] } —— 每页 24 条。翻页: 用 page 参数（默认 1，从 1 开始）；nextPage 为下一页页码，nextPage=null 或 page>=maxPage 表示到底。 Pair with: ↑ nodeId 常来自 search_categories（按关键词找类目）或 get_category_children（树状下钻）；↓ asin 喂 get_amazon_product；categoryId 同时也能喂 filter_categories 取聚合指标。 Cost: ~1 积点/页, ~5s。翻页只在用户明确要"更多/全部"时才做，否则首页够用。. It is categorised as a Read tool in the Amazon Mcp MCP Server, which means it retrieves data without modifying state.
Register the Amazon MCP server in PolicyLayer and add a rule for list_category_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 Amazon Mcp. Nothing to install.
list_category_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 list_category_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 list_category_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.
list_category_products is provided by the Amazon MCP server (https://mcp.pangolinfo.com/mcp?api_key={api_key}). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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