storage_set_bucket_lifecycle · Google Cloud MCP

WHAT IT DOES

What storage_set_bucket_lifecycle does on Google Cloud

AI agents use storage_set_bucket_lifecycle to create or update resources in Google Cloud — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Google Cloud environment.

WHY IT NEEDS A POLICY

Why storage_set_bucket_lifecycle needs a policy

This is a Write operation because it creates or modifies bucket lifecycle policies, which are reversible configuration settings. While lifecycle rules can eventually cause data deletion through automation, the tool itself only sets the rules—it does not directly delete data.

From the tool's definition The tool name 'storage_set_bucket_lifecycle' and description 'Set lifecycle rules for a Cloud Storage bucket' indicate modification of bucket configuration.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

storage_set_bucket_lifecycle Rate-limited

storage_set_bucket_lifecycle 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "storage_set_bucket_lifecycle": {
      "limits": [
        {
          "counter": "storage_set_bucket_lifecycle_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Google Cloud, so you can run agents against it safely.

FAQ

Questions about storage_set_bucket_lifecycle

What does the storage_set_bucket_lifecycle tool do? +

Set lifecycle rules for a Cloud Storage bucket. It is categorised as a Write tool in the Google Cloud MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on storage_set_bucket_lifecycle? +

Register the Google Cloud MCP server in PolicyLayer and add a rule for storage_set_bucket_lifecycle: 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 Google Cloud. Nothing to install.

What risk level is storage_set_bucket_lifecycle? +

storage_set_bucket_lifecycle is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit storage_set_bucket_lifecycle? +

Yes. Add a rate_limit block to the storage_set_bucket_lifecycle 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 storage_set_bucket_lifecycle completely? +

Set action: deny in the PolicyLayer policy for storage_set_bucket_lifecycle. 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 storage_set_bucket_lifecycle? +

storage_set_bucket_lifecycle is provided by the Google Cloud MCP server (lockon-n/google-cloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.