Query OceanBase cluster Unit list This interface is used to query the Unit list of an OceanBase cluster. The caller must be authenticated through OCP application service. Args: cluster_id: The ID of the cluster Returns: Dictionary containing UnitInfo list
AI agents call get_oceanbase_cluster_units 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 cluster unit information without any side effects. It queries existing data structures and returns information, fitting the Read category. Severity is low because querying cluster metadata poses minimal risk even if misused by an agent, as it only exposes configuration information about computational units without enabling destructive or financial operations.
From the tool's definition Tool name is 'get_oceanbase_cluster_units' and description states 'Query OceanBase cluster Unit list' — these are retrieval operations with no modification or deletion. Returns 'Dictionary containing UnitInfo list', confirming read-only behavior.
Documented attack patterns abuse exactly the kind of access get_oceanbase_cluster_units 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_units:
{
"version": "1",
"default": "deny",
"tools": {
"get_oceanbase_cluster_units": {}
}
}get_oceanbase_cluster_units is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Query OceanBase cluster Unit list This interface is used to query the Unit list of an OceanBase cluster. The caller must be authenticated through OCP application service. Args: cluster_id: The ID of the cluster Returns: Dictionary containing UnitInfo 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_cluster_units: 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_units 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_units 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_units. 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_units 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.