This record as markdown: /tools/baidu-map/comment-num.md
What comment_num does on Baidu Map
AI agents call comment_num to retrieve information from Baidu Map without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why comment_num is rated Low
The name implies retrieving a numeric count of comments, which is a read operation. However, the description is completely uninformative ('string'), which significantly lowers confidence. Given the context of a Baidu Map API server with sibling tools related to location/address data, this likely retrieves comment counts for a business or place. No write, execute, destructive, or financial behavior is evident.
From the tool's definition Tool name 'comment_num' suggests reading a count of comments; description is uninformative ('string')
Attacks that exploit this kind of access
The rule that runs comment_num safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Baidu Map, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For comment_num, this is the rule to start with:
comment_num 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 Baidu Map, apply this rule, and every comment_num call is checked against it from then on.
Questions about comment_num
string. It is categorised as a Read tool in the Baidu Map MCP Server, which means it retrieves data without modifying state.
Register the Baidu Map MCP server in PolicyLayer and add a rule for comment_num: 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 Baidu Map. Nothing to install.
comment_num 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 comment_num 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 comment_num. 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.
comment_num is provided by the Baidu Map MCP server (@baidumap/mcp-server-baidu-map). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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