AI agents use update_tenant to create or update resources in Mcp Oceanbase — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Oceanbase environment.
Based on the tool name and context of sibling tools, 'update_tenant' most likely modifies tenant properties or configuration in OceanBase (a distributed database system). This is a Write operation that creates or modifies data reversibly. Severity is high because misconfiguration or unauthorized tenant updates could impact database access, security settings, or multi-tenancy isolation.
From the tool's definition Tool name is 'update_tenant' which indicates modification of tenant configuration or state. Related tools include 'activate_tenant' and 'change_tenant_password', confirming this operates on tenant management infrastructure.
Documented attack patterns abuse exactly the kind of access update_tenant 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 update_tenant:
{
"version": "1",
"default": "deny",
"tools": {
"update_tenant": {
"limits": [
{
"counter": "update_tenant_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}update_tenant stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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update_tenant. It is categorised as a Write tool in the Mcp Oceanbase MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mcp Oceanbase MCP server in PolicyLayer and add a rule for update_tenant: 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.
update_tenant is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the update_tenant 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 update_tenant. 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.
update_tenant 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.