gcp_iam_delete_custom_role

Delete a custom IAM role

SERVERGCP MCP Server SOURCEahmedselimmansor-ctrl/gcp_mcp_server

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/ahmedselimmansor-ctrl-gcp-mcp-server/gcp-iam-delete-custom-role.md

WHAT IT DOES

What gcp_iam_delete_custom_role does on GCP MCP Server

AI agents call gcp_iam_delete_custom_role to permanently remove resources in GCP MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why gcp_iam_delete_custom_role is rated Critical

Deleting an IAM role is a destructive action that cannot be undone and will immediately affect all principals/bindings using that role. While not directly financial, the blast radius is high in enterprise environments where role deletion could revoke access, break service accounts, or cause authentication failures across dependent systems. Destructive is the most appropriate category per severity hierarchy.

From the tool's definition Tool name explicitly contains 'delete' and description states 'Delete a custom IAM role' — this irreversibly removes an IAM role definition from GCP.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs gcp_iam_delete_custom_role safely

PolicyLayer is an MCP gateway: it sits between your AI agents and GCP MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gcp_iam_delete_custom_role, this is the rule to start with:

gcp_iam_delete_custom_role Hidden

gcp_iam_delete_custom_role is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "gcp_iam_delete_custom_role"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect GCP MCP Server, apply this rule, and every gcp_iam_delete_custom_role call is checked against it from then on.

FAQ

Questions about gcp_iam_delete_custom_role

What does the gcp_iam_delete_custom_role tool do? +

Delete a custom IAM role. It is categorised as a Destructive tool in the GCP MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on gcp_iam_delete_custom_role? +

Register the GCP MCP Server MCP server in PolicyLayer and add a rule for gcp_iam_delete_custom_role: 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 GCP MCP Server. Nothing to install.

What risk level is gcp_iam_delete_custom_role? +

gcp_iam_delete_custom_role is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit gcp_iam_delete_custom_role? +

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

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

gcp_iam_delete_custom_role is provided by the GCP MCP Server MCP server (ahmedselimmansor-ctrl/gcp_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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