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 / properties / groups / items / properties / bundles / items / properties / items / items / properties / product / anyOfPrevious value: -[
- {
- "additionalProperties": false,
- "properties": {
- "brand": {
- "type": [
- "string",
- "null"
- ]
- },
- "brand_slug": {
- "type": [
- "string",
- "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": {
- "type": [
- "string",
- "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": {
- "description": "VAT rate in percent (20 = 20%). null when unknown: ex_vat then equals inc_vat.",
- "type": [
- "number",
- "null"
- ]
- },
- "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": {
- "type": [
- "string",
- "null"
- ]
- },
- "stock_level": {
- "type": "number"
- },
- "summary": {
- "type": [
- "string",
- "null"
- ]
- },
- "url": {
- "type": [
- "string",
- "null"
- ]
- }
- },
- "required": [
- "id",
- "sku",
- "name",
- "slug",
- "url",
- "brand",
- "brand_slug",
- "categories",
- "price",
- "in_stock",
- "stock_level",
- "image",
- "summary"
- ],
- "type": "object"
- },
- {
- "type": "null"
- }
-]New value: +[
+ {
+ "additionalProperties": false,
+ "properties": {
+ "brand": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "brand_slug": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "categories": {
+ "description": "Up to 8 category names; get_product has the product's details.",
+ "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": {
+ "type": [
+ "string",
+ "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": {
+ "description": "VAT rate in percent (20 = 20%). null when unknown: ex_vat then equals inc_vat.",
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "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": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "stock_level": {
+ "type": "number"
+ },
+ "summary": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "url": {
+ "type": [
+ "string",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "id",
+ "sku",
+ "name",
+ "slug",
+ "url",
+ "brand",
+ "brand_slug",
+ "categories",
+ "price",
+ "in_stock",
+ "stock_level",
+ "image",
+ "summary"
+ ],
+ "type": "object"
+ },
+ {
+ "type": "null"
+ }
+]Output schema / properties / groups / items / properties / bundles / items / properties / description / anyOfRemoved value: -[
- {
- "type": "string"
- },
- {
- "type": "null"
- }
-]Output schema / properties / groups / items / properties / bundles / items / properties / description / typeAdded value: +[
+ "string",
+ "null"
+]Output schema / properties / groups / items / properties / bundles / items / properties / items / items / properties / product / anyOfPrevious value: -[
- {
- "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"
- }
-]New value: +[
+ {
+ "additionalProperties": false,
+ "properties": {
+ "brand": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "brand_slug": {
+ "type": [
+ "string",
+ "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": {
+ "type": [
+ "string",
+ "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": {
+ "description": "VAT rate in percent (20 = 20%). null when unknown: ex_vat then equals inc_vat.",
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "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": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "stock_level": {
+ "type": "number"
+ },
+ "summary": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "url": {
+ "type": [
+ "string",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "id",
+ "sku",
+ "name",
+ "slug",
+ "url",
+ "brand",
+ "brand_slug",
+ "categories",
+ "price",
+ "in_stock",
+ "stock_level",
+ "image",
+ "summary"
+ ],
+ "type": "object"
+ },
+ {
+ "type": "null"
+ }
+]Output schema / properties / groups / items / properties / description / anyOfRemoved value: -[
- {
- "type": "string"
- },
- {
- "type": "null"
- }
-]Output schema / properties / groups / items / properties / description / typeAdded value: +[
+ "string",
+ "null"
+]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=true, openWorldHint=true, and destructiveHint=false, so the safety profile is covered externally. The description adds only that bundles are 'curated' and include items and prices, but says nothing about pagination, result limits, locale effects, or other behavioral traits beyond what annotations and schema provide.
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?
It is a single short sentence with no wasted words, but it is under-specified rather than optimally concise. The fragment lacks a leading action verb, so the core purpose is not front-loaded as clearly as it could be.
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?
An output schema exists, so return values need not be explained in the description, and annotations cover safety. However, for a listing tool that competes with many product-listing siblings, the description omits usage context, scope, and behavioral details, leaving the agent without enough information to select it confidently.
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 description coverage is 100%, and the single optional locale parameter is fully documented in the schema, including examples and its effect on names, slugs, and prices. The description adds no parameter meaning beyond the schema, so the baseline of 3 is appropriate.
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 names the resource ('curated product bundles (kits)') and mentions included items and prices, which distinguishes it somewhat from plain product listings. However, it is a noun phrase rather than a verb-led statement, and does not explicitly say it lists or returns these bundles, leaving the action implied rather than stated.
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?
There is no guidance on when to use this tool versus alternatives such as list_products, get_products, or search_products. The description gives no conditions, exclusions, or sibling tool comparisons.
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.