# update_user_access_control A write tool on the Vultr MCP MCP server. Agent View of the PolicyLayer registry record for `update_user_access_control`. HTML page: https://policylayer.com/tools/rsp2k-mcp-vultr/update-user-access-control ## Facts - Tool: `update_user_access_control` - Server: Vultr MCP (`rsp2k/mcp-vultr`) — https://policylayer.com/tools/rsp2k-mcp-vultr.md - Homepage: https://github.com/rsp2k/mcp-vultr - 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": "update_user_access_control", "arguments": {} } } ``` ## Why update_user_access_control is rated Medium This tool modifies access control configurations, which affects who can perform actions on Vultr infrastructure. While reversible (Write rather than Destructive), the impact is high because misconfiguration could grant or revoke critical permissions, potentially disrupting operations or enabling unauthorized access. From the tool's own definition: "Tool name 'update_user_access_control' indicates modification of access control settings. The verb 'update' signals a reversible write operation that changes user permissions or access policies." ## Use case AI agents use update_user_access_control to create or update resources in Vultr MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Vultr MCP environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Vultr MCP: ```json { "version": "1", "default": "deny", "tools": { "update_user_access_control": { "limits": [ { "counter": "update_user_access_control_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Vultr MCP (283) - `delete` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete.md - `delete_bare_metal_server` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-bare-metal-server.md - `delete_cdn_ssl_certificate` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-cdn-ssl-certificate.md - `delete_cdn_zone` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-cdn-zone.md - `delete_collection` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-collection.md - `delete_connection_pool` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-connection-pool.md - `delete_dns_domain` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-dns-domain.md - `delete_dns_record` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-dns-record.md - `delete_domain` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-domain.md - `delete_export` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-export.md - `delete_forwarding_rule` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-forwarding-rule.md - `delete_group` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-group.md - `delete_ipv4` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-ipv4.md - `delete_iso` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-iso.md - `delete_kafka_topic` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kafka-topic.md - `delete_kubernetes_cluster` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-cluster.md - `delete_kubernetes_cluster_with_resources` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-cluster-with-resources.md - `delete_kubernetes_node` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-node.md - `delete_kubernetes_node_pool` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-kubernetes-node-pool.md - `delete_logical_database` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-logical-database.md - `delete_record` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-record.md - `delete_rule` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-rule.md - `delete_serverless_inference` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-serverless-inference.md - `delete_ssl` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-ssl.md - `delete_startup_script` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-startup-script.md - `delete_user` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-user.md - `delete_vpc2` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/delete-vpc2.md - `purge_cdn_zone` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/purge-cdn-zone.md - `remove_ip_whitelist_entry` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/remove-ip-whitelist-entry.md - `remove_resource_from_collection` — Destructive — https://policylayer.com/tools/rsp2k-mcp-vultr/remove-resource-from-collection.md - …and 253 more: https://policylayer.com/tools/rsp2k-mcp-vultr.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=rsp2k-mcp-vultr · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/rsp2k-mcp-vultr