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show_plans

Read-onlyIdempotent

Use this when the user asks what a tier costs or bumps into a limit, so the answer is this account's actual plan rather than a guess. Show the available plans with what each includes, plus the caller's current tier and any allowance they have used. Read-only. Cannot spend money — it displays pricing and cannot start, change or cancel a subscription. Call this when a refusal names it as the recovery: an allowance is exhausted and the user is deciding what to do about it. PLANS GATE DEPTH, NEVER TRUTH — the registration verdict, its rdap_source and a domain's price are identical on every tier, and the response lists exactly what does not vary. Paying buys more of the picture, never a different answer about reality, so never present an upgrade as a way to get a better verdict.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
lawNo
plansYes
your_planNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "properties": {
      +    "law": {
      +      "type": "string"
      +    },
      +    "plans": {
      +      "type": "array"
      +    },
      +    "your_plan": {
      +      "type": "object"
      +    }
      +  },
      +  "required": [
      +    "plans"
      +  ],
      +  "type": "object"
      +}
  2. First observed

TDQS

A4.6/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly, idempotent and non-destructive, and the description goes further by stating it cannot spend money, cannot start/change/cancel a subscription, and that the response lists exactly what does not vary by tier. It stops short of describing return shape or pagination, but adds real behavioral value.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the trigger condition and the read-only guarantee, but the closing paragraph about plans gating depth rather than truth is long and repeats the read-only point. It earns its place as a guard against misleading the user, yet could be tightened.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

An output schema exists, so return values need not be explained; the description covers when to call it, safety constraints, and the tier/truth distinction an agent must not misrepresent. Complete for a zero-parameter read tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool takes zero parameters, so the schema-description baseline of 4 applies. The description correctly implies no input is needed to produce the account-specific plan view.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource (show available plans) and enumerates the payload: each plan's contents, the caller's current tier, and used allowance. It is clearly separable from sibling billing tools like get_finance and set_budget.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives two explicit triggering conditions — the user asking what a tier costs or hitting a limit, and a refusal that names this tool as the recovery path. It also states what the tool is not for, ruling out subscription mutation.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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