AI agents call get_oceanbase_cluster_tenants 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.
The tool appears to list or fetch tenant metadata from a database cluster. Even though the description is empty, the naming convention strongly indicates a read operation with no side effects. The blast radius is low as it only retrieves information without altering system state.
From the tool's definition Tool name 'get_oceanbase_cluster_tenants' indicates a retrieval operation that queries tenant information from an OceanBase cluster. The 'get_' prefix and absence of modification terms suggest read-only functionality.
Documented attack patterns abuse exactly the kind of access get_oceanbase_cluster_tenants 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_cluster_tenants:
{
"version": "1",
"default": "deny",
"tools": {
"get_oceanbase_cluster_tenants": {}
}
}get_oceanbase_cluster_tenants is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
get_oceanbase_cluster_tenants. 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_cluster_tenants: 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_cluster_tenants 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_cluster_tenants 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_cluster_tenants. 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_cluster_tenants 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.
Free to start. No card required.
134 Mcp Oceanbase tools catalogued and risk-classified — across an index of 42,500+ MCP servers.