wolaptop.de Preisvergleich

Partner-Angebot auf wolaptop.de nachschlagen / look up offer

lookup_product

Read-onlyIdempotent

Schlaegt ein Partner-Angebot aus search_offers per Produkt-ID (externalId) nach. EN: Looks up a partner offer from search_offers by its ID (externalId). Read-only.

Input Schema

Name	Required	Description
`id`	No	Produkt-ID / product ID (externalId aus search_offers).
`url`	No	Alternativ eine Produkt-URL / product URL (optional).
`language`	No	Sprache der Seiten-Links / language of page links (ISO 639-1, z. B. de, en, tr, ar, fr, zh). Default: Accept-Language, sonst de. Bietet die Seite die Sprache nicht an: en.

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

Schema Changelog

Changes observed during successful MCP inspections.

Changed5 schema fields changedJul 7, 2026

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)."
```

First observedJul 6, 2026

TDQS

B3.4/5.0

Behavior3/5

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

'Read-only' merely restates readOnlyHint, idempotentHint and destructiveHint=false already declared in annotations. The one genuinely additive fact is the provenance of the ID from search_offers, but nothing is said about miss/error behavior when an ID is unknown or a URL fails to resolve.

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?

Two short sentences with the key mechanism front-loaded; the German/English duplication adds length but no noise, and no sentence wanders into irrelevant territory.

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

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With an output schema present, return values need no explanation, and language defaults are covered by the schema. The remaining hole is that a 0-required-parameter lookup never tells the agent that at least one of id or url must be supplied and which to prefer.

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 the parameter baseline applies; the description only echoes the schema's externalId origin. It adds nothing about the id-vs-url alternative or the language fallback chain beyond what the schema already documents.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a concrete verb (looks up / nachschlagen) and resource (partner offer from search_offers) keyed on externalId, which clearly separates it from the search tool that produces those IDs. It does not explicitly contrast with find_pages, but the retrieval-by-ID framing is unambiguous.

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

Usage Guidelines3/5

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

Implies the workflow 'get an ID from search_offers, then call this' but never states it as guidance or rules out alternatives. Critically, all three parameters are optional, and the description gives no guidance on choosing between id and url or on which one takes precedence.

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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