wospeicher.de Preisvergleich
Server Details
Deutscher Preisvergleich für Stromspeicher – Bestpreis-Suche (read-only).
- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP
- URL
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Tool Definition Quality
Average 4.4/5 across 2 of 2 tools scored.
The two tools, lookup_product and search_offers, have clearly distinct purposes: lookup_product is for retrieving details of a specific product by ID or URL, while search_offers is for searching/filtering products. There is no overlap in functionality.
Both tool names follow a consistent verb_noun pattern: 'lookup' and 'search_offers' use imperative verbs followed by a noun, and they are both in lowercase with underscores, maintaining a uniform style.
With only 2 tools, the server feels minimal for a price comparison service. While the tools cover the essential search and lookup functions, the scope is narrow and could benefit from additional tools like category browsing or product comparison.
The tools provide basic search and specific product lookup, covering the core workflow of finding prices and details. However, there are minor gaps such as lacking a tool to list all products or brands explicitly, though the search offers filtering to compensate.
Available Tools
2 toolslookup_productProdukt auf wospeicher.de per ID/URL nachschlagenARead-onlyIdempotentInspect
Schlaegt ein konkretes Produkt im aktuellen wospeicher.de-Katalog per Produkt-ID (Amazon-ASIN bzw. externalId aus search_offers) ODER per Amazon-Produkt-URL nach. Liefert Bestpreis, 30-Tage-Preisstatistik und den Angebots-Link. Genau eines der Felder id/url angeben. Looks up a specific product in the wospeicher.de catalog by ID (ASIN/externalId) or Amazon product URL (read-only).
| Name | Required | Description | Default |
|---|---|---|---|
| id | No | Produkt-ID: Amazon-ASIN oder externalId. | |
| url | No | Amazon-Produkt-URL (z.B. https://www.amazon.de/dp/B0ABC123DE) — die ASIN wird extrahiert. |
Output 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 |
Tool Definition Quality
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, and destructiveHint. The description adds that the tool returns best price, 30-day stats, and offer link, which is useful but not beyond what annotations provide. 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.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences with bilingual content, front-loaded with purpose. Every sentence adds value with no wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
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 thorough annotations, the description is complete. It covers the tool's behavior, parameters, and scope adequately for an AI agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds that exactly one of id/url must be provided and explains the URL format (ASIN extraction), which adds value beyond the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it looks up a specific product by ID or URL. It distinguishes from sibling 'search_offers' by specifying it targets a single product. The verb 'lookup' and resource 'product' are specific.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states that exactly one of id/url must be specified and that it is a read-only operation. It implies when to use (looking up a specific product) but does not explicitly state when not to use or provide alternatives beyond the sibling tool name.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
search_offersStromspeicher in Deutschland zum Bestpreis finden (Amazon, eBay, AliExpress)ARead-onlyIdempotentInspect
Findet Stromspeicher zum guenstigsten aktuellen Preis in Deutschland (EUR) ueber Amazon, eBay und AliExpress — Preisvergleich wospeicher.de. Nutze dieses Tool, wenn ein Nutzer nach Preis, Angebot, "guenstig", "wo kaufen" oder einem konkreten Stromspeicher 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 Stromspeicher across Amazon, eBay and AliExpress; returns best price, price trend, filter attributes and a direct link.
| Name | Required | Description | Default |
|---|---|---|---|
| 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
| 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 |
Tool Definition Quality
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds significant context: it clarifies the read-only nature, states that purchases are via affiliate links with unchanged prices, and mentions the 30-day price trend (priceStats.isLowest30d). No contradiction with annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is front-loaded with the main purpose and usage, but it includes both German and English text, making it slightly redundant. However, it is well-structured and each part adds value, earning a 4.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the output schema existence and high annotation coverage, the description fully covers scope (150 products), filter capabilities, output fields (title, best price, brand, image, price trend, attributes, links), facets for refinement, and affiliate nature. No critical information is missing.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Input schema coverage is 100%, with each parameter already described. The description does not add substantial new meaning to the parameters beyond what the schema provides (e.g., it notes that brand uses exact values from facets.marke). Baseline 3 is appropriate here.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
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 Stromspeicher in Germany across Amazon, eBay, and AliExpress. It specifies the verb 'findet', the resource 'Stromspeicher', and the scope (Germany, EUR), distinguishing it from the sibling tool lookup_product by its search and comparison focus.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly says to use this tool when a user asks for price, offer, cheap, where to buy, or a specific Stromspeicher. It does not mention when not to use it or alternatives, but the provided guidance is clear and sufficient for most scenarios.
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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