woroller.de Preisvergleich

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 ~150 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

Name	Required	Description
`brand`	No	Auf eine Marke einschraenken (exakter Wert aus facets.marke, z.B. "Nike").
`limit`	No	Maximale Anzahl Ergebnisse (Default 24, max 100).
`query`	No	Suchbegriff, z.B. Modell/Marke/Eigenschaft ("Balkonkraftwerk 800W", "iPhone 15 schwarz"). Optional.
`maxPrice`	No	Hoechstpreis in EUR (optional).
`minPrice`	No	Mindestpreis in EUR (optional).

Output Schema

TableJSON Schema

Name	Required	Description
`site`	No
`count`	Yes
`query`	No
`facets`	No	Verfuegbare Filter-Werte (Marke + domain-spezifische Attribute) mit Trefferzahlen — zum gezielten Nachfiltern via query/brand/minPrice/maxPrice.
`products`	Yes
`updatedAt`	No
`disclosure`	No
`catalogVersion`	No

TDQS

A4.6/5.0

Behavior5/5

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

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds value by detailing the output (best price, price trend, filter attributes, direct link), explaining affiliate links, and confirming read-only behavior. No contradictions.

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 description is front-loaded with the core purpose and usage. It is somewhat lengthy due to bilingual content, but every sentence adds value. A bit more conciseness could improve it.

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?

Given the presence of an output schema and comprehensive annotations, the description covers all necessary aspects: purpose, usage, behavioral traits, and parameter hints. It is complete for the tool's complexity.

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 coverage is 100%, so baseline 3. The description adds context to the 'brand' parameter by noting it should come from facets.marke. It also mentions that search terms are optional and includes examples, which aids understanding 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 clearly states the tool finds the cheapest current price for E-Roller in Germany across Amazon, eBay, and AliExpress. It uses specific verbs ('Findet'/'finds') and distinguishes itself from the sibling tool 'lookup_product' by focusing on price comparison.

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 provides explicit guidance on when to use the tool: when a user asks for price, offer, 'guenstig', 'wo kaufen', or a specific E-Roller. While it does not explicitly state when not to use it, the context is clear and the sibling tool implies an alternative for detailed product lookups.

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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TDQS

A4.4/5.0

Disambiguation5/5

The two tools have clearly distinct purposes: lookup_product retrieves details for a specific product by ID/URL, while search_offers finds products by search criteria. No overlap or ambiguity.

Naming Consistency5/5

Both tool names follow the consistent verb_noun pattern using snake_case: lookup_product and search_offers. Perfectly consistent.

Tool Count4/5

Only 2 tools for a niche price comparison service is reasonable, though slightly minimal. The tools cover the core search and detail lookup functions without unnecessary extras.

Completeness4/5

The tool set covers product searching and detailed lookup, which are the essential operations for a price comparison site. Minor gaps like separate category listing exist but are mitigated by facets in search results.

Resources

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