list_bundlesCurated product bundles (kits) with their items and prices.
| Name | Required | Description | Default |
|---|---|---|---|
| locale | No | Storefront locale such as en-GB (default), en-US, de, fr-FR, es-ES, it-IT, nl-NL, pl. Controls product names, slugs and prices. |
| Name | Required | Description | Default |
|---|---|---|---|
| groups | Yes | ||
| bundles_url | Yes |
Changes observed during successful MCP inspections.
Output schema / (root)Previous value: -nullNew value: +{
+ "$schema": "http://json-schema.org/draft-07/schema#",
+ "additionalProperties": false,
+ "properties": {
+ "bundles_url": {
+ "type": "string"
+ },
+ "groups": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "bundles": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "description": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "id": {
+ "type": "number"
+ },
+ "items": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "product": {
+ "anyOf": [
+ {
+ "additionalProperties": false,
+ "properties": {
+ "brand": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "brand_slug": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "categories": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "express_eligible": {
+ "description": "Website Express (same-working-day UK dispatch); only when the listing reports it.",
+ "type": "boolean"
+ },
+ "gtin": {
+ "type": "string"
+ },
+ "id": {
+ "type": "number"
+ },
+ "image": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "in_stock": {
+ "type": "boolean"
+ },
+ "mpn": {
+ "type": "string"
+ },
+ "name": {
+ "type": "string"
+ },
+ "price": {
+ "anyOf": [
+ {
+ "additionalProperties": false,
+ "properties": {
+ "bulk_prices": {
+ "description": "Lower unit prices from min_quantity up.",
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "ex_vat": {
+ "type": "number"
+ },
+ "inc_vat": {
+ "type": "number"
+ },
+ "min_quantity": {
+ "type": "number"
+ }
+ },
+ "required": [
+ "min_quantity",
+ "ex_vat",
+ "inc_vat"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "currency": {
+ "type": "string"
+ },
+ "ex_vat": {
+ "type": "number"
+ },
+ "inc_vat": {
+ "type": "number"
+ },
+ "on_sale": {
+ "type": "boolean"
+ },
+ "vat_rate": {
+ "anyOf": [
+ {
+ "type": "number"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "VAT rate in percent (20 = 20%). null when unknown: ex_vat then equals inc_vat."
+ },
+ "was_ex_vat": {
+ "type": "number"
+ },
+ "was_inc_vat": {
+ "description": "Price before the sale; only when on_sale.",
+ "type": "number"
+ }
+ },
+ "required": [
+ "currency",
+ "ex_vat",
+ "inc_vat",
+ "on_sale",
+ "vat_rate"
+ ],
+ "type": "object"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "null when the product has no online price."
+ },
+ "sku": {
+ "type": "string"
+ },
+ "slug": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "stock_level": {
+ "type": "number"
+ },
+ "summary": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "url": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ }
+ },
+ "required": [
+ "id",
+ "sku",
+ "name",
+ "slug",
+ "url",
+ "brand",
+ "brand_slug",
+ "categories",
+ "price",
+ "in_stock",
+ "stock_level",
+ "image",
+ "summary"
+ ],
+ "type": "object"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "quantity": {
+ "type": "number"
+ }
+ },
+ "required": [
+ "quantity",
+ "product"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "name": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "name",
+ "description",
+ "items"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "description": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "name": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "name",
+ "description",
+ "bundles"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ }
+ },
+ "required": [
+ "groups",
+ "bundles_url"
+ ],
+ "type": "object"
+}Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, openWorldHint, and destructiveHint, so the safety profile is covered. The description adds useful semantic context ('curated product bundles (kits)') but does not disclose additional behavioral traits such as pagination, response shape, or any locale-specific effects.
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 a single, tightly worded sentence with no filler. It front-loads the core concept ('Curated product bundles') and immediately states the expected contents ('items and prices').
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?
For a simple read-only list operation with one optional parameter, full schema coverage, and an output schema present, the description is sufficiently complete. It would be marginally better with an explicit pointer to sibling tools for non-bundle product queries, but that is not necessary for correct invocation.
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?
The input schema fully describes the locale parameter and its effect on product names, slugs, and prices, so schema coverage is 100%. The description adds no parameter-level detail, but it does not need to because the schema already carries that burden.
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 identifies the resource as curated product bundles/kits and specifies that items and prices are included, which distinguishes it from siblings like list_products and list_offers. The action ('list') is carried by the title and name, so the purpose is unambiguous even if the description itself lacks an explicit verb.
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 offers no explicit guidance about when to use this tool versus alternatives such as list_products or list_offers. Usage is only implied by the word 'bundles,' which is too weak to count as real routing guidance for an agent.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.