AI agents call csmar_list_databases to retrieve information from CSMAR MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about available databases without modifying any data, executing code, or triggering external operations. It is a straightforward informational query operation, making it a Read category risk with low severity since listing accessible resources poses minimal harm compared to actual data access or modification.
From the tool's definition Tool name 'csmar_list_databases' and description '列出用户有权访问的 CSMAR 数据库' (list CSMAR databases the user has access to) indicates a retrieval/enumeration operation with no data modification or execution.
Documented attack patterns abuse exactly the kind of access csmar_list_databases gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and CSMAR MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for csmar_list_databases:
{
"version": "1",
"default": "deny",
"tools": {
"csmar_list_databases": {}
}
}csmar_list_databases is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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列出用户有权访问的 CSMAR 数据库. It is categorised as a Read tool in the CSMAR MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CSMAR MCP Server MCP server in PolicyLayer and add a rule for csmar_list_databases: 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 CSMAR MCP Server. Nothing to install.
csmar_list_databases 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 csmar_list_databases 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 csmar_list_databases. 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.
csmar_list_databases is provided by the CSMAR MCP Server MCP server (ww11-max/csmar-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from CSMAR MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
11 CSMAR MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.