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woroller.de Preisvergleich

by de.woroller
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E-Roller in Deutschland zum Bestpreis finden (Amazon, eBay, AliExpress)

search_offers
Read-onlyIdempotent

Findet E-Roller zum guenstigsten aktuellen Preis in Deutschland (EUR) ueber Amazon, eBay und AliExpress — Preisvergleich woroller.de. Nutze dieses Tool, wenn ein Nutzer nach Preis, Angebot, "guenstig", "wo kaufen" oder einem konkreten E-Roller fragt. Durchsucht den vollen Katalog (mehrere hundert Produkte), filterbar per Suchbegriff, Marke und Preisspanne. Liefert je Produkt: Titel, Bestpreis, Marke, Bild, 30-Tage-Preistrend (priceStats.isLowest30d = aktuell guenstigster Stand), domain-spezifische Attribute (attributes, z.B. Leistung/Speicher/Farbe), einen direkten Kauf-Link (url) und eine zitierfaehige Produktseite (detailUrl). Die Antwort enthaelt zusaetzlich facets (verfuegbare Filterwerte) zum Verfeinern. Read-only, Kauf beim verlinkten Haendler (Affiliate, Preis unveraendert). Finds the cheapest current price in Germany for E-Roller across Amazon, eBay and AliExpress; returns best price, price trend, filter attributes and a direct link.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
brandNoAuf eine Marke einschraenken (exakter Wert aus facets.marke, z.B. "Nike").
limitNoMaximale Anzahl Ergebnisse (Default 24, max 100).
queryNoSuchbegriff, z.B. Modell/Marke/Eigenschaft ("Balkonkraftwerk 800W", "iPhone 15 schwarz"). Optional.
maxPriceNoHoechstpreis in EUR (optional).
minPriceNoMindestpreis in EUR (optional).

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
siteNo
countYes
queryNo
facetsNoVerfuegbare Filter-Werte (Marke + domain-spezifische Attribute) mit Trefferzahlen — zum gezielten Nachfiltern via query/brand/minPrice/maxPrice.
productsYes
updatedAtNo
disclosureNo
catalogVersionNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed11 schema fields changed
    • addedInput schema / properties / brand
      Added value: +{
+  "description": "Auf eine Marke einschraenken (exakter Wert aus facets.marke, z.B. \"Nike\").",
+  "type": "string"
+}
    • changedInput schema / properties / limit / description
      Previous value: -"Maximale Anzahl Ergebnisse (Default 24, max 50)."New value: +"Maximale Anzahl Ergebnisse (Default 24, max 100)."
    • changedInput schema / properties / limit / maximum
      Previous value: -50New value: +100
    • addedInput schema / properties / maxPrice
      Added value: +{
+  "description": "Hoechstpreis in EUR (optional).",
+  "type": "number"
+}
    • addedInput schema / properties / minPrice
      Added value: +{
+  "description": "Mindestpreis in EUR (optional).",
+  "type": "number"
+}
    • changedInput schema / properties / query / description
      Previous value: -"Optionaler Suchbegriff — filtert nach Titel, Marke oder Haendler."New value: +"Suchbegriff, z.B. Modell/Marke/Eigenschaft (\"Balkonkraftwerk 800W\", \"iPhone 15 schwarz\"). Optional."
    • addedOutput schema / properties / facets
      Added value: +{
+  "description": "Verfuegbare Filter-Werte (Marke + domain-spezifische Attribute) mit Trefferzahlen — zum gezielten Nachfiltern via query/brand/minPrice/maxPrice.",
+  "type": "array"
+}
    • addedOutput schema / properties / products / items / properties / attributes
      Added value: +{
+  "description": "Domain-spezifische Filter-Attribute, z.B. {farbe, watt, speicher, reichweite}.",
+  "type": "object"
+}
    • addedOutput schema / properties / products / items / properties / brand
      Added value: +{
+  "type": "string"
+}
    • addedOutput schema / properties / products / items / properties / detailUrl
      Added value: +{
+  "description": "Zitierfaehige Produktseite mit Preisverlauf.",
+  "type": "string"
+}
    • addedOutput schema / properties / products / items / properties / priceStats / description
      Added value: +"30-Tage-Preisstatistik (avg/min/max, isLowest30d)."
  2. First observed

TDQS

A4.3/5.0
Behavior5/5

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

Annotations already show readOnlyHint=true, idempotentHint=true, and destructiveHint=false, and the description adds meaningful context beyond that: it discloses the output shape, 30-day price trend, facets for refinement, affiliate behavior with unchanged price, and catalog scope of several hundred products. There is no contradiction with the annotations.

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

Conciseness3/5

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

The description is well structured and front-loaded, with purpose and usage at the start followed by output details. However, it is notably longer than necessary because the German content is fully repeated in English, which makes it less concise than it could be.

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?

For a read-only, idempotent search tool with fully described optional parameters and an output schema, the description is complete enough for an agent to select and invoke it correctly. It states triggers, available filters, return fields, facets, and the affiliate link behavior without requiring the agent to infer anything important.

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 description coverage is 100%, so the schema already documents all parameters and their meaning in detail. The description adds only modest reinforcement by mentioning filters for search term, brand, and price range, but it does not add major new parameter semantics beyond 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?

The description opens with a specific verb and resource: 'Findet E-Roller zum guenstigsten aktuellen Preis in Deutschland (EUR) ueber Amazon, eBay und AliExpress'. It also clarifies the tool searches the full catalog and returns offers, which clearly communicates the tool's role and differentiates it from the sibling lookup_product.

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

Usage Guidelines4/5

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

The description explicitly states when to use the tool: 'Nutze dieses Tool, wenn ein Nutzer nach Preis, Angebot, guenstig, wo kaufen oder einem konkreten E-Roller fragt.' This is strong trigger guidance, but it does not explicitly name the sibling tool or describe when not to use it.

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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