create_forecast

Create a new forecast with a question, resolution date, and criteria. Optionally set initial probability, base rate, and evidence. Returns forecast ID for subsequent updates.

SERVERNodebench SOURCEnodebench-mcp

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/io-github-homenshum-nodebench/create-forecast.md

WHAT IT DOES

What create_forecast does on Nodebench

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

RISK

Why create_forecast is rated Medium

This tool creates a new forecast record with associated metadata (question, resolution date, criteria, probability, base rate, evidence). Creation of data is a Write operation.

From the tool's definition Tool description states 'Create a new forecast' which is a reversible create operation. Creates data (forecast record with ID) that can be subsequently updated or modified.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_forecast safely

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

create_forecast Rate-limited

create_forecast 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_forecast": {
      "limits": [
        {
          "counter": "create_forecast_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 Nodebench, apply this rule, and every create_forecast call is checked against it from then on.

FAQ

Questions about create_forecast

What does the create_forecast tool do? +

Create a new forecast with a question, resolution date, and criteria. Optionally set initial probability, base rate, and evidence. Returns forecast ID for subsequent updates. It is categorised as a Write tool in the Nodebench 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_forecast? +

Register the Nodebench MCP server in PolicyLayer and add a rule for create_forecast: 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 Nodebench. Nothing to install.

What risk level is create_forecast? +

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

Can I rate-limit create_forecast? +

Yes. Add a rate_limit block to the create_forecast 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_forecast completely? +

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

create_forecast is provided by the Nodebench MCP server (nodebench-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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