create_project_role · Infisical MCP: Risk & Policy

WHAT IT DOES

What create_project_role does on Infisical MCP

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

WHY IT NEEDS A POLICY

Why create_project_role needs a policy

This tool creates new project roles which modifies project configuration and access control settings. This is a Write operation (creates/adds new configuration data) rather than Read (retrieval only), Execute (arbitrary code execution), or Destructive (irreversible deletion).

From the tool's definition Tool description states 'Create a custom project role' - this is a reversible creation operation that modifies the access control configuration of a project by adding new role definitions with specified permission rules.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_project_role Rate-limited

create_project_role 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": {
    "create_project_role": {
      "limits": [
        {
          "counter": "create_project_role_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 Infisical MCP, so you can run agents against it safely.

FAQ

Questions about create_project_role

What does the create_project_role tool do? +

Create a custom project role with Infisical permission rules. It is categorised as a Write tool in the Infisical MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_project_role? +

Register the Infisical MCP server in PolicyLayer and add a rule for create_project_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 Infisical MCP. Nothing to install.

What risk level is create_project_role? +

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

Can I rate-limit create_project_role? +

Yes. Add a rate_limit block to the create_project_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 create_project_role completely? +

Set action: deny in the PolicyLayer policy for create_project_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 create_project_role? +

create_project_role is provided by the Infisical MCP server (plgonzalezrx8/infisicalmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.