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Crawlora MCP

Crawlora MCP

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by Crawlora-org
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JavaScript
Remote

alt_auctions

Search Alt's live 24/7 card auctions by keyword, category, grading company, or sort order. Browse only Alt-hosted auction listings, excluding other auction houses and fixed-price items.

Instructions

Search Alt's own live 24/7 auctions. Searches Alt's own currently live auctions -- the same pool shown on alt.xyz/browse's "Auctions" tab filtered to the Alt source. Unlike alt-search, this never returns another source auction house's listings or Alt's own fixed-price items. See alt-categories for the accepted category/grading_company/sort values.

Input Schema

NameRequiredDescriptionDefault
qNoFree-text search across item name, subject, brand, and variety. Omit or pass * to browse every current Alt auction.
pageNo1-based page number, default 1
sortNoResult order. Default recommended.
categoryNoComma-separated card category filter
per_pageNoResults per page, default 24, max 100
grading_companyNoComma-separated grading company filter

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv1.17.5

TDQS

A4.5/5.0
Behavior4/5

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

With no annotations, the description carries the behavioral burden and does well by disclosing that results are limited to live Alt-source auctions, excluding fixed-price and third-party listings. It does not mention authentication, rate limits, pagination behavior, or the shape of returned auction records, leaving some operational context unstated.

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?

The scope and alternative are front-loaded and easy to scan, but the opening two sentences repeat the same 'Alt's own live auctions' concept. A tighter version would state the scope once and move directly to the alt-search contrast.

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?

For a six-parameter search tool with no annotations and no output schema, the description gives enough context to choose and call the tool correctly, including scope, exclusions, and enum-value guidance. It could say more about the returned auction fields or ordering behavior, but the core selection context is present.

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?

Schema description coverage is 100%, so the baseline is 3, but the description adds value by directing the agent to alt-categories for accepted category, grading_company, and sort values. It does not explain the q wildcard or pagination semantics, but those are already covered by the schema.

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 (Search) and resource (Alt's own live 24/7 auctions), and explicitly distinguishes this pool from alt-search and other auction sources. An agent can identify the tool's unique scope without opening the schema.

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 alt-search as the contrasting alternative and makes the selection condition clear: this tool never returns other auction houses' listings or Alt's fixed-price items. It also points to alt-categories for accepted enum values, which helps an agent prepare a valid call.

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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