Nexscope Ozon Category Search

This skill lists the products of a specific Ozon category from the Nexscope analytics database. Given a categoryId, it returns category-level aggregates (total sales, total revenue, average price, average rating, seasonality) plus each product's sales, price, rating, review count, brand and seller — the starting point for category selection analysis, best-seller mining within a category, and category capacity / price-band analysis.

Core Concepts

Unit of data is the product, scoped to one category: pass a single categoryId and receive that category's product list with performance metrics, alongside category-level aggregates. This is a category-level view, not a shop or keyword view.

Where the categoryId comes from: categoryId is the Ozon category identifier — a hierarchical path joined by _ (e.g. 15621032_15621049_115951147), obtained from the Ozon category document or from other Nexscope Ozon tools. If the user only has a category name, first resolve it to a categoryId from an upstream Nexscope Ozon source before calling this skill.

Category aggregates vs product rows: the response carries both category-level totals (totalSales, totalRevenue, avgPrice, rating, seasonalityAmplitude, seasonalityCoef, startDate/endDate) and a paginated product list (data / products). Use the aggregates for category sizing and the rows for individual product analysis.

Sales & price currency: sales / monthlySalesUnits are units; price / revenue are in Russian rubles (₽), indicated by currency.

Time window: by default the data covers the last 30 days (startDate / endDate show the actual range). Pass date as yyyy-MM (e.g. 2026-02) to query a historical month snapshot.

Parameters

Parameter	Type	Required	Description
categoryId	string	yes	Ozon category ID, e.g. 15621032_15621049_115951147 (levels joined by _).
page	object	yes	Pagination {page, pageSize, orders[]}.
page.page	integer	no	Page number, from 1 (default 1).
page.pageSize	integer	no	Page size, default 20. Max 20 — larger values are rejected (a platform validation error).
page.orders	array	no	Sort rules, elements {field, direction} (both required); direction DESC/ASC. Common fields: sales, price, revenue, reviewRating.
date	string	no	Historical month yyyy-MM (e.g. 2026-02); omit for last 30 days.
fulfillment	string	no	Fulfillment filter, one of FBO / FBS / RFBS / FBP / OZON; omit to query all. Single string, not an array.
uId	string	no	User ID.
memberId	string	no	Member ID (data attribution).

Only categoryId and page are required.

Calling the Tool

• API Endpoint: /seerfar/ozon/categorySearch (full parameters/responses/error codes in references/api.md)
• Python Script: python scripts/ozon_category_search.py '<JSON params>' [--inline]
• Cost constraint: This tool consumes credits. Within the same session and same parameter combination, it defaults to a single call with a 24-hour local cache. Do not automatically retry with different keywords, pagination, or parameters on failure/empty results. Inform the user of additional credit consumption before continuing retrieval.

Output strategy (script default behavior):

• Always write the full response to <cwd>/nexscope/<YYYY-MM-DD>/<session>/data/ecommerce.ozon-category-search-<timestamp>.json (<cwd> is the working directory when the script executes, which in Claude Code is the current project directory; <session> is taken from the SESSION_ID environment variable, automatically grouped by user task; do not write to /tmp; error if the current directory is not writable)
• Response body <= 8 KB: write to disk then print full JSON to stdout
• Response body > 8 KB: write to disk then print only a summary to stdout (top-level fields, common counts like total/costToken, length of the largest list field + first 3 samples)
• Add --inline to force full output to stdout (still writes to disk)

Reading data: Check the summary first to determine if it is sufficient. When specific fields are needed, use jq or ConvertFrom-Json to extract from the saved JSON file as needed, avoiding loading the entire JSON into context.

Response handling

For the research HTTP response, require a numeric outer code equal to 0 before using data. Nonzero codes are platform failures; display outer msg without interpreting its wording as a retry instruction. Nexscope preserves upstream messages and translates Chinese to English; successful responses may have msg: null. HTTP 200 alone and nested business code / status do not replace the platform check. See references/api.md for response paths and task-specific states.

Authentication & Credits

If you encounter authentication or credit issues:

Error conditions

• API Key not configured: The NEXSCOPE_API_KEY environment variable is not set.
• HTTP 401 or 402 status code
• Insufficient credits/balance: Response message indicates credit balance exhausted, quota exceeded, subscription expired, or recharge required.

Resolution steps

1. Set the NEXSCOPE_API_KEY environment variable with a valid API key.
2. If credits are insufficient, visit https://www.nexscope.ai/pricing?co-from=skillNS to top up your balance.
3. For onboarding and setup guidance, refer to https://www.nexscope.ai/help/skills-external-access?co-from=skillNS

Usage Examples

1. Category best-sellers (sort by 30-day sales)

{"categoryId": "15621032_15621049_115951147", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "sales", "direction": "DESC"}]}}

2. Category top-revenue products

{"categoryId": "15621032_15621049_115951147", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "revenue", "direction": "DESC"}]}}

3. Category premium price band (highest-priced)

{"categoryId": "15621032_15621049_115951147", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "price", "direction": "DESC"}]}}

4. Historical month snapshot

{"categoryId": "15621032_15621049_115951147", "date": "2026-02", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "sales", "direction": "DESC"}]}}

5. Filter to FBO-fulfilled products only

{"categoryId": "15621032_15621049_115951147", "fulfillment": "FBO", "page": {"page": 1, "pageSize": 20, "orders": [{"field": "sales", "direction": "DESC"}]}}

6. Page deeper into the category

{"categoryId": "15621032_15621049_115951147", "page": {"page": 2, "pageSize": 20, "orders": [{"field": "sales", "direction": "DESC"}]}}

How to Build Queries

1. Always pass page.orders: categories can contain many products — sort by the metric you care about (sales DESC for best-sellers, revenue DESC for top revenue, price DESC for the premium band, reviewRating DESC for best-reviewed).
2. Keep pageSize ≤ 20: the gateway caps page size at 20. Use page.page to paginate; check hasNextPage to know whether more pages exist.
3. Resolve the categoryId first: if the user gives a category name rather than an id, obtain the categoryId from an upstream Nexscope Ozon source before calling this skill.
4. Use category aggregates for sizing: totalSales, totalRevenue, avgPrice and rating describe the whole category at a glance — use them for capacity and price-band assessment before drilling into rows.
5. Use date for historical comparison: pass date as yyyy-MM to compare a past month against the current 30-day window.
6. fulfillment is a single string: pass one of FBO / FBS / RFBS / FBP / OZON, not an array.

Display Rules

1. Present data only: show the category aggregates and product metrics in a clear table without subjective advice.
2. Lead with category context, then product columns: state the category name (from categoryInfo.cnTitlePath / enTitlePath — confirms the right category), then totalSales, totalRevenue, avgPrice, rating, seasonality (seasonalityAmplitude / seasonalityCoef) and date range, plus the fulfillment distribution (sellerType map) as a one-line FBO/FBS/RFBS/... split; then a table of sku, title, price, sales, revenue, reviewRating, reviewCount, brandName, sellerName.
3. Currency: price / revenue are in rubles (₽); render with the currency symbol.
4. Fulfillment: fulfillment is an array (e.g. ["FBO"]); join multiple values with /.
5. Unified vs original fields: productId/rating/brand/monthlySalesUnits/monthlySalesRevenue/productPageUrl mirror sku/reviewRating/brandName/sales/revenue/productUrl — show one set, prefer the originals.
6. Pagination guidance: when hasNextPage is true, tell the user more pages are available via page.page; remind them pageSize is capped at 20.
7. Empty category: a non-existent categoryId returns success with total=0 and no data — tell the user the id may be wrong rather than reporting a system error.
8. Error handling: when the numeric outer platform code is nonzero, explain the reason from outer msg and suggest fixes (add page, lower pageSize, retry on rate-limit).

Important Limitations

• categoryId and page are both required; omitting either returns a nonzero platform code.
• pageSize max 20: exceeding it returns a nonzero platform code.
• No text/keyword filter within a category: this endpoint filters by category (plus optional fulfillment and date) only; to find products by keyword, use the Nexscope Ozon market keyword search skill.
• total is the page row count, not the category's total product count — use hasNextPage to decide whether to fetch more pages.
• sellerType is a fulfillment distribution, not seller type: despite the name, the top-level sellerType is a map of fulfillment model → product count ({FBO, RFBS, FBP, FBS, OZON}); it does not carry local/cross-border (local/cross-border) info. categoryInfo carries the category name path (CN/EN/RU) and crossBorderSellable.

User Expression & Scenario Quick Reference

Applicable — analyzing one Ozon category's products and aggregates:

User Says	Scenario
"Analyze products in this Ozon category" / "How big is this category"	Category sizing (totalSales / totalRevenue / avgPrice)
"What are the best-selling products in this category"	Best-seller mining (sort by sales)
"Top-revenue products in this category"	Top-revenue products (sort by revenue)
"Price band / average order value in this category"	Price-band analysis (sort by price)
"Best-reviewed products in this category"	Best-reviewed (sort by reviewRating)
"Last month's data for this category"	Historical month snapshot (date)
"FBO products in this category"	Fulfillment filter

Not applicable — Needs beyond one category's product list:

• One shop/seller's catalog → use the Nexscope Ozon shop search skill.
• Market-level keyword discovery → use the Nexscope Ozon market keyword search skill.
• Keyword mining → use the Nexscope Ozon keyword mining skill.
• A single product's full detail → use a product-level Nexscope Ozon source (this skill returns category-level fields only).

Boundary judgment: if the user already has a categoryId (or one resolved from an upstream source) and wants to enumerate, rank, or size that category's products by sales/price/rating, start here. If they want a shop's catalog, keyword discovery, or a single product's deep detail, route to the corresponding Nexscope Ozon skill.