列出 MongoDB 数据库中的所有集合
AI agents call mongodb_list_collections to retrieve information from Db without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query operation that lists collections in a MongoDB database. It has no side effects, does not modify data, and does not execute arbitrary operations. The blast radius of misuse is minimal—an attacker gains only database schema visibility, which is typically already known or easily discoverable.
From the tool's definition Tool name 'mongodb_list_collections' and description '列出 MongoDB 数据库中的所有集合' (list all collections in MongoDB database) - retrieves metadata about database structure without modifying or deleting data.
Documented attack patterns abuse exactly the kind of access mongodb_list_collections gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Db, and nothing reaches the server without passing your rules. This is the rule we recommend for mongodb_list_collections:
{
"version": "1",
"default": "deny",
"tools": {
"mongodb_list_collections": {}
}
}mongodb_list_collections 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 MongoDB 数据库中的所有集合. It is categorised as a Read tool in the Db MCP Server, which means it retrieves data without modifying state.
Register the Db MCP server in PolicyLayer and add a rule for mongodb_list_collections: 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 Db. Nothing to install.
mongodb_list_collections 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 mongodb_list_collections 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 mongodb_list_collections. 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.
mongodb_list_collections is provided by the Db MCP server (wannanbigpig/db-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Db, 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.
34 Db tools catalogued and risk-classified — across an index of 43,000+ MCP servers.