Get database user list This interface is used to get the database user list of a tenant. The caller must be authenticated through OCP application service. The caller must have read permissions on the specified tenant. Args: cluster_id: The ID of the cluster tenant_id: The ID of the tenant Returns...
AI agents call get_oceanbase_tenant_users to retrieve information from Mcp Oceanbase without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries user information from a database tenant without any capability to modify, delete, or execute operations. It requires read permissions on the specified tenant, consistent with a read-only data retrieval operation. The blast radius of misuse is limited to unauthorized information disclosure about database users.
From the tool's definition Tool name and description explicitly state 'Get database user list' with no modification, deletion, or execution capability. Returns a 'Dictionary containing database user list' with read-only semantics.
Documented attack patterns abuse exactly the kind of access get_oceanbase_tenant_users gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Oceanbase, and nothing reaches the server without passing your rules. This is the rule we recommend for get_oceanbase_tenant_users:
{
"version": "1",
"default": "deny",
"tools": {
"get_oceanbase_tenant_users": {}
}
}get_oceanbase_tenant_users is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get database user list This interface is used to get the database user list of a tenant. The caller must be authenticated through OCP application service. The caller must have read permissions on the specified tenant. Args: cluster_id: The ID of the cluster tenant_id: The ID of the tenant Returns: Dictionary containing database user list. It is categorised as a Read tool in the Mcp Oceanbase MCP Server, which means it retrieves data without modifying state.
Register the Mcp Oceanbase MCP server in PolicyLayer and add a rule for get_oceanbase_tenant_users: 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 Mcp Oceanbase. Nothing to install.
get_oceanbase_tenant_users 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 get_oceanbase_tenant_users 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 get_oceanbase_tenant_users. 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.
get_oceanbase_tenant_users is provided by the Mcp Oceanbase MCP server (oceanbase/awesome-oceanbase-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 134 Mcp Oceanbase tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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134 Mcp Oceanbase tools catalogued and risk-classified — across an index of 42,500+ MCP servers.