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Crawlora MCP

by net.crawlora
OverviewDiscussionsAdmin

steam_featured

Read-only

Fetch Steam storefront featured capsules and spotlight items with prices and discounts for a store region. cc selects the region and currency; l selects display language. Use steam_featured_categories for top sellers, new releases, specials, and coming-soon lists.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

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

Input Schema

NameRequiredDescriptionDefault
lNoLanguage code
ccNoStore country code (ISO, selects currency)

Output Schema

NameRequiredDescriptionDefault
dataYesThe tool result payload (shape varies per tool; see each tool's docs resource).

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • addedInput schema / properties / cc / description
      Added value: +"Store country code (ISO, selects currency)"
    • addedInput schema / properties / l / description
      Added value: +"Language code"
  2. First observed

TDQS

A4.2/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety and network profile is covered. The description adds that results include prices and discounts for a store region, which is modest useful context, but it does not mention pagination, rate limits, or freshness. With annotations carrying the behavioral burden, a 3 is appropriate.

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

Conciseness5/5

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

Two sentences, zero waste, and the primary purpose plus scope is front-loaded ahead of the sibling routing hint.

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

Completeness4/5

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 needn't be explained, and the description covers purpose, scope, params, and sibling routing. Minor gap: no note on whether parameters are optional or how defaults resolve, though the schema marks both as optional.

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

Parameters3/5

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

Schema coverage is 100%, so both parameters are already documented. The description restates that cc selects region/currency and l selects display language, matching the schema without adding syntax, format, or default guidance. Baseline 3 is correct.

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 (Fetch) and resource (Steam storefront featured capsules and spotlight items), plus the data scope (prices and discounts, store region). It explicitly names the sibling steam_featured_categories and what that sibling covers instead, so an agent can distinguish the two without opening schemas.

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?

Names the alternative (steam_featured_categories) and the condition that selects it (top sellers, new releases, specials, coming-soon lists). The when-to-use routing is explicit and actionable.

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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