create_project_identity · Infisical MCP: Risk & Policy

WHAT IT DOES

What create_project_identity does on Infisical MCP

AI agents use create_project_identity 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_identity needs a policy

This tool creates a new machine identity, which is a reversible write operation that modifies the project's configuration by adding identity access. While it doesn't delete or move money, the blast radius is high because an attacker could create unauthorized machine identities to gain persistent access to projects and their secrets.

From the tool's definition Tool name contains 'create' and description states 'Create a machine identity scoped to a project.' This is a create operation that generates new identity resources in Infisical.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_project_identity Rate-limited

create_project_identity 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_identity": {
      "limits": [
        {
          "counter": "create_project_identity_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_identity

What does the create_project_identity tool do? +

Create a machine identity scoped to a project. 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_identity? +

Register the Infisical MCP server in PolicyLayer and add a rule for create_project_identity: 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_identity? +

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

Can I rate-limit create_project_identity? +

Yes. Add a rate_limit block to the create_project_identity 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_identity completely? +

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

create_project_identity 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.