# gcp_pubsub_create_subscription

Create a new Pub/Sub subscription

Agent View of the PolicyLayer registry record for `gcp_pubsub_create_subscription`. HTML page: https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-pubsub-create-subscription

## Facts

- Tool: `gcp_pubsub_create_subscription`
- Server: GCP MCP Server (`ahmedselimmansor-ctrl/gcp_mcp_server`) — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server.md
- Homepage: https://github.com/ahmedselimmansor-ctrl/GCP_MCP_server
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "gcp_pubsub_create_subscription",
    "arguments": {}
  }
}
```

## Why gcp_pubsub_create_subscription is rated Medium

This tool creates a new Pub/Sub subscription, which modifies cloud infrastructure by adding a resource. This is a Write operation—it creates data/configuration that can be modified or deleted later. The severity is medium because creating subscriptions can affect message routing and resource costs, and an agent could create numerous subscriptions to exhaust quotas or redirect messages, but the action is reversible.

From the tool's own definition: "Tool name contains 'create_subscription' and description states 'Create a new Pub/Sub subscription', indicating reversible creation of a messaging resource."

## Use case

AI agents use gcp_pubsub_create_subscription to create or update resources in GCP MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GCP MCP Server environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches GCP MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "gcp_pubsub_create_subscription": {
      "limits": [
        {
          "counter": "gcp_pubsub_create_subscription_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on GCP MCP Server (294)

- `gcp_agent_delete_app` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-app.md
- `gcp_agent_delete_data_store` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-data-store.md
- `gcp_agent_delete_endpoint` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-endpoint.md
- `gcp_agent_delete_model` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-model.md
- `gcp_agent_delete_reasoning_engine` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-agent-delete-reasoning-engine.md
- `gcp_appengine_delete_service` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-appengine-delete-service.md
- `gcp_appengine_delete_version` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-appengine-delete-version.md
- `gcp_ar_delete_package` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-ar-delete-package.md
- `gcp_ar_delete_repository` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-ar-delete-repository.md
- `gcp_ar_delete_version` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-ar-delete-version.md
- `gcp_bq_delete_dataset` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-bq-delete-dataset.md
- `gcp_bq_delete_table` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-bq-delete-table.md
- `gcp_compute_delete_disk` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-compute-delete-disk.md
- `gcp_compute_delete_instance` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-compute-delete-instance.md
- `gcp_compute_delete_snapshot` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-compute-delete-snapshot.md
- `gcp_compute_detach_disk` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-compute-detach-disk.md
- `gcp_dns_delete_managed_zone` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-dns-delete-managed-zone.md
- `gcp_dns_delete_record_set` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-dns-delete-record-set.md
- `gcp_firestore_delete_document` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-firestore-delete-document.md
- `gcp_functions_delete` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-functions-delete.md
- `gcp_gke_delete_cluster` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-gke-delete-cluster.md
- `gcp_gke_delete_node_pool` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-gke-delete-node-pool.md
- `gcp_iam_delete_custom_role` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-iam-delete-custom-role.md
- `gcp_iam_delete_service_account` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-iam-delete-service-account.md
- `gcp_iam_delete_service_account_key` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-iam-delete-service-account-key.md
- `gcp_iam_remove_iam_binding` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-iam-remove-iam-binding.md
- `gcp_lb_delete_backend_service` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-lb-delete-backend-service.md
- `gcp_lb_delete_forwarding_rule` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-lb-delete-forwarding-rule.md
- `gcp_lb_delete_target_pool` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-lb-delete-target-pool.md
- `gcp_logging_delete_log` — Destructive — https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-logging-delete-log.md
- …and 264 more: https://policylayer.com/tools/ahmedselimmansor-ctrl-gcp-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=ahmedselimmansor-ctrl-gcp-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/ahmedselimmansor-ctrl-gcp-mcp-server