upgrade_cluster

THE RISK

High Risk

Based on the name alone, 'upgrade_cluster' likely triggers a cluster upgrade operation on an OceanBase database cluster, which is an irreversible or hard-to-reverse infrastructure-level action. However, the description is empty, so confidence is reduced. Cluster upgrades are major operations with high blast radius if misused, potentially causing downtime or data issues.

From the tool's definition Tool name is 'upgrade_cluster'; description is empty and uninformative.

Documented attack patterns abuse exactly the kind of access upgrade_cluster gives an agent:

HOW TO CONTROL UPGRADE_CLUSTER

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 upgrade_cluster:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "upgrade_cluster": {
      "limits": [
        {
          "counter": "upgrade_cluster_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

upgrade_cluster stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Mcp Oceanbase — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

More Mcp Oceanbase tools

Destructive delete_all_memories Batch delete memories Args: user_id: User identifier agent_id: Agent Destructive delete_backup_policy delete_backup_policy Destructive delete_cluster 删除指定命名空间中的OceanBase集群 Args: cluster_name: 要删除的集群名称 namespace: 要从中删除集群 Destructive delete_collection Delete a collection from seekdb. This will permanently delete the collection and all Destructive delete_documents delete_documents Destructive delete_memory Delete memory Args: memory_id: Memory ID user_id: User identifier Destructive delete_memory_with_profile Delete memory and optionally the associated user profile Args: memory_id: Mem Destructive delete_tenant delete_tenant

All 134 Mcp Oceanbase tools →

Execute tools on other servers

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Go deeper

High-risk tools in Mcp Oceanbase → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the upgrade_cluster tool do? +

upgrade_cluster. It is categorised as a Execute tool in the Mcp Oceanbase MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on upgrade_cluster? +

Register the Mcp Oceanbase MCP server in PolicyLayer and add a rule for upgrade_cluster: 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.

What risk level is upgrade_cluster? +

upgrade_cluster is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit upgrade_cluster? +

Yes. Add a rate_limit block to the upgrade_cluster 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.

How do I block upgrade_cluster completely? +

Set action: deny in the PolicyLayer policy for upgrade_cluster. 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.

What MCP server provides upgrade_cluster? +

upgrade_cluster 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.

Enforce policy on every Mcp Oceanbase tool call.

Deterministic rules across all 134 Mcp Oceanbase tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

GOVERN MCP OCEANBASE →

Free to start. No card required.

134 Mcp Oceanbase tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT UPGRADE_CLUSTER ON MCP OCEANBASE DOES

// THE RISK

// HOW TO CONTROL UPGRADE_CLUSTER

// EXPLORE