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Get indexed product details

get_product
Read-onlyIdempotent

Use this after global_search when the selected candidate needs indexed details that are not already on its search card. The p2209_id must come from global_search. Variant options and colors are merchant-declared snapshot evidence matched by variation ID. This remains a snapshot, not live merchant verification; follow the returned handoff before confirming variant, price, or stock. Skip this call when the search card already answers the question.

Input Schema

NameRequiredDescriptionDefault
p2209_idYesKaliCart product ID (e.g. prod_duinshop-it_432395)

Output Schema

NameRequiredDescriptionDefault
nameNo
errorNo
priceNo
scopeNo
handoffNo
categoryNo
p2209_idYes
variantsNo
attributesNo
provenanceNo
updated_atNo
merchant_idNo
product_urlNo
availabilityNo
storefront_urlNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "$schema": "http://json-schema.org/draft-07/schema#",
      +  "additionalProperties": true,
      +  "properties": {
      +    "attributes": {},
      +    "availability": {},
      +    "category": {
      +      "type": [
      +        "string",
      +        "null"
      +      ]
      +    },
      +    "error": {
      +      "type": "string"
      +    },
      +    "handoff": {},
      +    "merchant_id": {
      +      "type": "string"
      +    },
      +    "name": {
      +      "type": "string"
      +    },
      +    "p2209_id": {
      +      "type": "string"
      +    },
      +    "price": {},
      +    "product_url": {
      +      "anyOf": [
      +        {
      +          "format": "uri",
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "provenance": {},
      +    "scope": {
      +      "additionalProperties": true,
      +      "properties": {
      +        "type": {
      +          "type": "string"
      +        }
      +      },
      +      "required": [
      +        "type"
      +      ],
      +      "type": "object"
      +    },
      +    "storefront_url": {
      +      "anyOf": [
      +        {
      +          "format": "uri",
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "updated_at": {
      +      "anyOf": [
      +        {
      +          "anyOf": [
      +            {
      +              "type": "string"
      +            },
      +            {
      +              "format": "date-time",
      +              "type": "string"
      +            }
      +          ]
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "variants": {}
      +  },
      +  "required": [
      +    "p2209_id"
      +  ],
      +  "type": "object"
      +}
  2. Added

TDQS

A4.9/5.0
Behavior5/5

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

Annotations already declare readOnly/idempotent/non-destructive, and the description goes well beyond them by disclosing that data is a merchant-declared snapshot rather than live verification, and that the returned handoff must be followed before confirming variant, price, or stock. That is meaningful behavioral context an agent could not infer from annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loads the usage trigger, then layers the prerequisite, the evidence nature, and the exclusion in sequence. Every sentence carries distinct, actionable information with no filler.

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?

An output schema exists so return values needn't be described, and the description covers the prerequisite, the snapshot caveat, and the follow-up handoff obligation. Nothing an agent needs to call this correctly is missing.

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 the p2209_id format is already documented; the description adds provenance semantics beyond the schema, stating the ID must come from global_search. It stops short of adding new syntax, but the provenance constraint is real added value.

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?

States a specific verb (get) and resource (indexed product details), plus the exact scope ('indexed details that are not already on its search card'). It clearly distinguishes itself from global_search by framing this as the follow-up step that fetches detail beyond the search card.

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

Usage Guidelines5/5

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

Explicit when-to-use ('after global_search when the selected candidate needs indexed details') and when-not ('Skip this call when the search card already answers the question'), and it names the sibling global_search as the source of the required ID.

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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