# calculate

Run the 409A valuation budget calculator calculator: 409A valuations to budget for; Appraisal fees at your quoted price; Expedite premium; Total 409A spend over the horizon. Missing inputs fall back to their documented defaults.

Agent View of the PolicyLayer registry record for `calculate`. HTML page: https://policylayer.com/tools/com-409acost-site/calculate

## Facts

- Tool: `calculate`
- Server: Site (`https://409acost.com/mcp`) — https://policylayer.com/tools/com-409acost-site.md
- Homepage: https://github.com/joeetdev/venture-estate
- Risk category: Execute (High risk)
- Registry record: grade D, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 4
- Recommended policy verdict: Rate-limited

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `rush` | number | no | Rush or expedite premium you have been quoted |
| `price` | number | no | Quoted price per 409A valuation |
| `years` | number | no | Planning horizon (years) |
| `events` | number | no | Priced rounds or other material events expected in that time |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "calculate",
    "arguments": {}
  }
}
```

## Why calculate is rated High

calculate triggers real processes with real consequences. An agent gone sideways doesn't fire it once. It starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

## Use case

AI agents invoke calculate to trigger actions in Site. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Site:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "calculate": {
      "limits": [
        {
          "counter": "calculate_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Site (4)

- `calculator_describe` — Read — https://policylayer.com/tools/com-409acost-site/calculator-describe.md
- `enquiry_describe` — Read — https://policylayer.com/tools/com-409acost-site/enquiry-describe.md
- `enquiry_fields` — Read — https://policylayer.com/tools/com-409acost-site/enquiry-fields.md
- `submit_enquiry` — Write — https://policylayer.com/tools/com-409acost-site/submit-enquiry.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=com-409acost-site · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-409acost-site