role.assign

Assign one persistent advisory role task by uncertainty, cost, and objective.

SERVERVisionmcp SOURCEjoshuahickscorp/visionmcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/visionmcp/role.assign.md

WHAT IT DOES

What role.assign does on Visionmcp

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

RISK

Why role.assign is rated Medium

The tool assigns persistent roles, which constitutes creating or modifying data. This is a Write-category operation because assignments can typically be changed or revoked. Severity is medium because incorrect role assignments could affect access control or task distribution, but the effect is limited to advisory roles rather than system-critical permissions.

From the tool's definition Tool name 'assign' and description 'Assign one persistent advisory role task' indicate creation/modification of role assignments, which is reversible data creation (not deletion, not financial, not code execution).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs role.assign safely

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

role.assign Rate-limited

role.assign 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": {
    "role.assign": {
      "limits": [
        {
          "counter": "role.assign_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Visionmcp, apply this rule, and every role.assign call is checked against it from then on.

FAQ

Questions about role.assign

What does the role.assign tool do? +

Assign one persistent advisory role task by uncertainty, cost, and objective. It is categorised as a Write tool in the Visionmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on role.assign? +

Register the Vision MCP server in PolicyLayer and add a rule for role.assign: 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 Visionmcp. Nothing to install.

What risk level is role.assign? +

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

Can I rate-limit role.assign? +

Yes. Add a rate_limit block to the role.assign 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 role.assign completely? +

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

role.assign is provided by the Vision MCP server (joshuahickscorp/visionmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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