ozon-mcp
ozon-mcp
Ozon Seller 및 Performance API를 위한 MCP 서버입니다. 몇 분 안에 모든 AI 에이전트를 Ozon 계정과 연결하세요.
ozon-mcp는 Ozon 판매자 툴킷 전체를 15개의 고효율 도구로 변환하는 지식 집약적 MCP 서버입니다. AI 에이전트(Claude, Cursor, Cline, Continue, Goose, Zed 등)는 러시아어 또는 영어로 API를 검색하고, 완전히 해석된 JSON 스키마를 통해 466개의 메서드 중 무엇이든 자세히 살펴볼 수 있으며, 내장된 안전 장치를 통해 호출을 실행할 수 있습니다. 구독 인식, 4가지 커서 스타일에 대한 자동 페이지네이션, 429 오류 시 재시도/백오프 기능, 그리고 바로 사용할 수 있는 13가지 분석 워크플로우를 지원합니다.
주요 사실: 466개의 인덱싱된 메서드(Seller 420개 + Performance 46개), 55개의 섹션, 5개의 구독 등급 모델링, 38개의 페이지네이션 엔드포인트 자동 탐색, 43개의 파괴적 메서드 이중 잠금 장치, 일반적인 판매자 시나리오를 위한 13개의 큐레이팅된 워크플로우.
빠른 시작
사전 요구 사항
Python 3.12 또는 3.13
uv패키지 관리자 — 다음 명령어로 설치:curl -LsSf https://astral.sh/uv/install.sh | shOzon Seller API 자격 증명(Client-Id + Api-Key) — 다음에서 확인: https://seller.ozon.ru/app/settings/api-keys
설치
git clone https://github.com/PCDCK/ozon-mcp.git
cd ozon-mcp
uv sync작동 확인
uv run ozon-mcp --helpFastMCP 사용 라인이 표시되어야 합니다. 서버는 MCP stdio 프로토콜을 사용하므로 호환되는 모든 클라이언트를 연결할 수 있습니다(아래 지침 참조).
Related MCP server: wildberries-mcp
AI 에이전트 연결
ozon-mcp는 표준 MCP stdio 전송을 사용합니다. 아래의 모든 예제는 동일한 15개의 도구를 제공하므로, 이미 사용 중인 클라이언트를 선택하세요.
Claude Desktop
다음 파일을 편집하세요:
~/Library/Application Support/Claude/claude_desktop_config.json
(macOS) 또는 %APPDATA%\Claude\claude_desktop_config.json (Windows).
{
"mcpServers": {
"ozon": {
"command": "uv",
"args": ["--directory", "/absolute/path/to/ozon-mcp",
"run", "ozon-mcp"],
"env": {
"OZON_CLIENT_ID": "your-seller-client-id",
"OZON_API_KEY": "your-seller-api-key",
"OZON_PERFORMANCE_CLIENT_ID": "your-perf-client-id",
"OZON_PERFORMANCE_CLIENT_SECRET": "your-perf-secret"
}
}
}
}Claude Code (CLI)
cd /path/to/ozon-mcp
claude mcp add ozon -- uv run ozon-mcp또는 위 Claude Desktop 설정과 동일한 형식으로 ~/.claude/mcp.json에 추가하세요.
Cursor
설정(Settings) → MCP → 새 MCP 서버 추가, 또는 ~/.cursor/mcp.json 편집:
{
"mcpServers": {
"ozon": {
"command": "uv",
"args": ["--directory", "/absolute/path/to/ozon-mcp",
"run", "ozon-mcp"]
}
}
}Windsurf
~/.codeium/windsurf/mcp_config.json 편집:
{
"mcpServers": {
"ozon": {
"command": "uv",
"args": ["--directory", "/absolute/path/to/ozon-mcp",
"run", "ozon-mcp"]
}
}
}Cline (VS Code 확장 프로그램)
Cline → 설정(Settings) → MCP 서버(MCP Servers) → 추가:
{
"ozon": {
"command": "uv",
"args": ["--directory", "/absolute/path/to/ozon-mcp",
"run", "ozon-mcp"]
}
}Continue.dev
~/.continue/config.json 편집:
{
"experimental": {
"modelContextProtocolServers": [
{
"transport": {
"type": "stdio",
"command": "uv",
"args": ["--directory", "/absolute/path/to/ozon-mcp",
"run", "ozon-mcp"]
}
}
]
}
}Goose, Zed 또는 기타 MCP 클라이언트
MCP stdio를 지원하는 모든 클라이언트에서 작동합니다. 일반 설정:
command: uv
args: ["--directory", "/absolute/path/to/ozon-mcp", "run", "ozon-mcp"]
transport: stdio
env:
OZON_CLIENT_ID: ...
OZON_API_KEY: ...공식 MCP 클라이언트 목록은 https://modelcontextprotocol.io/clients에서 확인하세요.
사용 예시
아래의 모든 예시는 tests/fixtures/responses/에서 복사한 실제 응답을 보여줍니다. 식별자(99000001, TEST-SKU-001)는 익명화되었지만 실제 형태를 유지합니다.
예시 1 — 모든 상품 가져오기
사용자:
operation_id="ProductAPI_GetProductList"와 함께ozon_fetch_all을 사용하여 내 모든 상품을 가져와줘.
에이전트 호출:
{
"operation_id": "ProductAPI_GetProductList",
"params": {"filter": {"visibility": "ALL"}},
"max_items": 10000
}서버가 last_id 커서를 자동으로 탐색하고 다음을 반환합니다:
{
"ok": true,
"items": [
{"product_id": 99000001, "offer_id": "TEST-SKU-001", "archived": false},
{"product_id": 99000002, "offer_id": "TEST-SKU-002", "archived": false},
{"product_id": 99000003, "offer_id": "TEST-SKU-003", "archived": true}
],
"total_fetched": 3,
"truncated": false,
"pages_fetched": 1
}예시 2 — 재고 부족 위험이 있는 상품 찾기
사용자: 내 계정에 대해
oos_risk_analysis워크플로우를 실행해줘.
에이전트가 먼저 워크플로우를 검사합니다:
ozon_get_workflow({"name": "oos_risk_analysis"})→ 에이전트에게 AnalyticsAPI_StocksTurnover를 호출하도록 지시합니다(1분당 1회 요청으로 제한됨 — 서버의 엔드포인트별 큐가 이를 처리합니다). 또한 turnover_grade를 해석하는 방법을 알려줍니다. 호출 결과:
{
"items": [
{"sku": 99000001, "current_stock": 12, "ads": 1.5,
"idc": 8.0, "turnover_grade": "DEFICIT",
"turnover_grade_cluster": "DEFICIT_GROWING"},
{"sku": 99000002, "current_stock": 25, "ads": 0.8,
"idc": 31.25, "turnover_grade": "OPTIMAL",
"turnover_grade_cluster": "OPTIMAL_FALLING"},
{"sku": 99000003, "current_stock": 0, "ads": 0.0,
"idc": 0.0, "turnover_grade": "NO_SALES",
"turnover_grade_cluster": "NO_SALES"}
]
}워크플로우의 interpret 필드는 에이전트에게 idc < 14 또는 turnover_grade ∈ {DEFICIT, NO_SALES}인 SKU를 표시하고 idc asc 순으로 정렬하도록 지시합니다.
예시 3 — 전체 계정 상태 점검
사용자:
cabinet_health_check워크플로우를 사용하여 내 Ozon 계정 상태를 확인해줘.
워크플로우는 에이전트에게 RatingAPI_RatingSummaryV1, SellerAPI_SellerInfo, AverageDeliveryTimeSummary 세 가지 엔드포인트를 병렬로 읽도록 지시합니다. 첫 번째 호출 결과:
{
"groups": [
{
"group_name": "Выполнение заказов",
"items": [
{"rating": "rating_on_time", "name": "Процент заказов вовремя",
"current_value": 97.5, "status": "OK", "value_type": "PERCENT"},
{"rating": "rating_review_avg_score", "name": "Средняя оценка",
"current_value": 4.7, "status": "OK", "value_type": "RATING"}
]
},
{
"group_name": "Качество сервиса",
"items": [
{"rating": "rating_price_index", "name": "Индекс цен",
"current_value": 1.01, "status": "OK", "value_type": "INDEX"}
]
}
],
"premium_scores": [
{"rating": "rating_on_time", "value": 97.5,
"penalty_score_per_day": 0, "scope": "premium_plus"}
]
}예시 4 — 상품 가격 분석
사용자: 내 상품 중 가격 지수가 빨간색인 것은 무엇인가요?
에이전트가 pricing_analysis 워크플로우를 실행하고 모든 항목의 price_indexes.color_index 필드를 검사합니다:
{
"product_id": 99000001, "offer_id": "TEST-SKU-001",
"price": {"price": "399.0000", "marketing_seller_price": "399.0000",
"min_price": "299.0000"},
"price_indexes": {
"color_index": "WITHOUT_INDEX",
"ozon_index_data": {"minimal_price": "395.0000",
"price_index_value": 1.01}
},
"commissions": {"sales_percent_fbo": 0.13, "sales_percent_fbs": 0.13}
}워크플로우의 common_mistakes 목록은 에이전트에게 기본 price뿐만 아니라 marketing_seller_price(실제 구매자에게 표시되는 가격)와 비교하도록 상기시킵니다.
예시 5 — 콘텐츠 감사
사용자: 콘텐츠 등급이 낮은 상품을 찾아서 개선 방법을 알려줘.
에이전트가 content_audit을 실행하여 SKU별 등급과 점수를 높일 수 있는 속성 목록을 가져옵니다:
{
"products": [
{
"sku": 99000001, "rating": 85,
"groups": [
{"key": "media", "rating": 100},
{"key": "characteristics", "rating": 75,
"improve_attributes": [
{"id": 4191, "name": "Цвет"},
{"id": 8292, "name": "Материал"}
],
"improve_at_least": 4}
]
}
]
}워크플로우는 에이전트에게 rating을 +10 올리면 검색 순위가 눈에 띄게 향상된다고 알려주므로, 해당 두 가지 속성을 채우는 것이 약 4점의 가치가 있음을 알 수 있습니다.
사용 가능한 도구 (15)
도구 | 기능 |
| 안전 및 구독 제한을 적용하여 Ozon API 메서드 실행 |
| 자동 페이지네이션 — 첫 페이지뿐만 아니라 모든 페이지 가져오기 |
| 메서드에 대한 전체 문서: 스키마, 예제, 속도 제한, 특이 사항 |
| 466개 메서드에 대한 BM25 검색(러시아어 또는 영어, 어간 추출 지원) |
| 섹션별로 API 탐색 |
| 한 섹션 내의 모든 메서드 |
| 준비된 분석 워크플로우 목록(카테고리별 필터링 가능) |
| 워크플로우에 대한 전체 단계별 계획 |
| 함께 사용하기 좋은 메서드(자동 추출된 그래프) |
| 메서드에 대한 큐레이팅된 요청/응답 예제 |
| 메서드별, 섹션별 또는 전체 속도 제한 확인 |
| 현재 계정의 구독 등급 확인 |
| 특정 등급에서 잠금 해제되는 기능 확인 |
| 번들된 API 사양이 최신인지 확인 |
| Ozon 오류 코드 조회 |
준비된 워크플로우 (13)
워크플로우는 큐레이팅된 단계별 레시피입니다. ozon_get_workflow("name")을 사용하여 interpret, when_to_use, common_mistakes 및 동기화 스타일 워크플로우를 위한 권장 DB 스키마를 포함한 전체 계획을 가져오세요.
워크플로우 | 카테고리 | 해결 과제 |
| 분석 | 재고 부족 위험이 있는 상품 찾기 |
| 상태 | 모든 판매자 등급 지표를 한 번에 확인 |
| 콘텐츠 | 콘텐츠 등급이 낮은 카드 찾기 + 실행 가능한 속성 |
| 가격 | 경쟁력이 없는 가격의 상품 찾기 |
| 창고 | FBO를 위한 창고별 재고 분석 |
| 카탈로그 | 전체 상품 카탈로그 스냅샷 |
| 주문 | 증분 FBO 주문 동기화 |
| 주문 | 증분 FBS / rFBS 주문 동기화 |
| 재무 | 단위 경제 분석을 위한 재무 거래 |
| 분석 | 일일 매출 / 주문 시계열 |
| 광고 | Performance API 광고 카탈로그 |
| 창고 | FBS 창고 재고 |
| 반품 | rFBS 반품 동기화 |
API 커버리지
API | 메서드 | 섹션 |
Ozon Seller API | 420 | 49 |
Ozon Performance API | 46 | 6 |
합계 | 466 | 55 |
모델링된 구독 등급(낮음 → 높음):
LITE → STANDARD → PREMIUM → PREMIUM_PLUS → PREMIUM_PRO.
주요 기능
구독 인식
서버는 프리미엄 등급에서만 사용할 수 있는 메서드를 알고 있으며, 호출이 머신을 떠나기 전에 차단하여 API 할당량을 절약합니다:
{
"error": "subscription_gate",
"error_type": "subscription_gate",
"code": 7,
"message": "Endpoint requires PREMIUM_PRO, cabinet has PREMIUM_PLUS",
"operation_id": "ProductPricesDetails",
"required_tier": "PREMIUM_PRO",
"cabinet_tier": "PREMIUM_PLUS",
"retryable": false,
"http_call_skipped": true
}속도 제한 관리
429 오류 발생 시 지수 백오프를 통한 자동 재시도.
Retry-After준수(델타 초 및 RFC 7231 HTTP 날짜 모두 지원).느린 메서드에 대한 엔드포인트별 세마포어(예:
/v1/analytics/turnover/stocks는 Ozon 측에서 1분당 1회 요청으로 엄격히 제한되며, 서버가 병렬 호출을 자동으로 큐에 넣습니다).
자동 페이지네이션
ozon_fetch_all은 Ozon이 사용하는 4가지 페이지네이션 패턴(offset/limit, cursor, last_id, page_number)을 모두 처리합니다. 또한 서버가 동일한 커서를 연속으로 두 번 반환하여 무한 루프에 빠지는 드문 경우를 감지하고 루프를 중단합니다.
ozon_fetch_all(
operation_id="ProductAPI_GetProductList",
params={"filter": {"visibility": "ALL"}},
max_items=10_000,
)
# → {"items": [...all products...], "total_fetched": 847,
# "truncated": false, "pages_fetched": 1}통합 오류 봉투
실패할 수 있는 모든 도구는 동일한 형태의 응답을 반환하므로, 에이전트나 하위 코드에서 쉽게 분기 처리할 수 있습니다:
{
"error": "rate_limit_exceeded",
"error_type": "rate_limit | subscription_gate | not_found | invalid_params | server_error | timeout | auth | forbidden | conflict | ...",
"message": "Human-readable explanation",
"code": 429,
"operation_id": "AnalyticsAPI_StocksTurnover",
"endpoint": "/v1/analytics/turnover/stocks",
"retryable": true,
"retry_after_seconds": 60
}카탈로그에 내장된 안전 분류
모든 메서드는 read, write, destructive 중 하나의 safety 필드를 가집니다. write는 confirm_write=True가 필요하며, destructive는 confirm_write=True와 i_understand_this_modifies_data=True가 모두 필요합니다. 스키마 추출기의 휴리스틱은 quirks.yaml의 43개 큐레이팅된 safety_warning 항목으로 강화되어, 에이전트가 데이터를 변경하기 전에 항상 명확한 경고를 확인하게 합니다.
API 사양 최신 유지
Ozon은 주기적으로 스웨거를 업데이트합니다. 동기화하려면:
cd parser/ # the parser repo / drop-zone
python parse_swagger.py # downloads + sanitises both APIs
cp seller_swagger.json ../src/ozon_mcp/data/
cp perf_swagger.json ../src/ozon_mcp/data/
cp swagger_meta.json ../src/ozon_mcp/data/ozon_get_swagger_meta를 실행하여 번들된 스냅샷이 최신인지 확인하세요(CI는 스냅샷이 14일 이상 경과하면 빌드를 실패 처리합니다).
개발
git clone https://github.com/PCDCK/ozon-mcp.git
cd ozon-mcp
uv sync --extra dev
# Tests (≈25s, 274 currently)
uv run pytest tests/ --ignore=tests/live
# Code quality
uv run ruff check src tests
uv run mypy src/ozon_mcp
# Coverage
uv run pytest tests/ --ignore=tests/live --cov=src/ozon_mcp \
--cov-report=term-missing지식(워크플로우, 예제, 특이 사항, 구독 재정의)을 추가하는 방법은 CONTRIBUTING.md를 참조하세요.
라이선스
Available Tools
15 toolsozon_call_methodA
Execute a real call against the Ozon API.
SAFETY MODEL — read methods just work; write/destructive methods
require explicit confirmation flags. Each method's safety class is
visible in ozon_describe_method (safety field).
safety="read": no flag needed
safety="write": requires confirm_write=True
safety="destructive": requires BOTH confirm_write=True AND i_understand_this_modifies_data=True
SUBSCRIPTION GATE — when the method requires a higher tariff than the current cabinet tier, the call is refused locally and no HTTP request is sent. Saves quota on calls that would 403 anyway.
RATE LIMITS — 429 responses are retried up to MAX_RETRIES times honouring Retry-After. Slow endpoints (e.g. /v1/analytics/turnover/ stocks at 1 req/min) are serialised via a per-process semaphore.
On any failure returns a structured OzonError envelope —
agents should inspect error_type and decide.
Args: operation_id: e.g. "FinanceAPI_FinanceTransactionListV3" params: request body matching the method's request_schema confirm_write: required when method.safety == "write" or "destructive" i_understand_this_modifies_data: extra confirmation for destructive cabinet_tier: override the cached cabinet tier (e.g. "PREMIUM_PLUS")
| Name | Required | Description | Default |
|---|---|---|---|
| params | No | ||
| cabinet_tier | No | ||
| operation_id | Yes | ||
| confirm_write | No | ||
| i_understand_this_modifies_data | No |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden. It fully discloses the safety model, subscription gate, rate limit handling (retries with Retry-After, semaphore for slow endpoints), and error envelope. This goes well beyond what structured fields would 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?
The description is well-structured with clear section headers (SAFETY MODEL, SUBSCRIPTION GATE, RATE LIMITS). It is appropriately sized—each sentence adds value, no fluff. It is front-loaded with the core purpose.
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?
Given the tool's complexity (5 parameters, safety flags, subscription, rate limits), the description covers all behavioral aspects comprehensively. It explains what happens on failure (structured OzonError). Since there is an output schema, return value details are not needed. Complete for an execution tool.
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 coverage is 0%, so description must compensate. It explains confirm_write and i_understand_this_modifies_data in the context of safety classes, cabinet_tier as an override, operation_id with an example, and params as the request body. This adds critical meaning beyond the schema's type/default info.
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 states it executes real calls against the Ozon API, using a specific verb ('Execute') and resource ('Ozon API'). It distinguishes itself from sibling tools like ozon_describe_method (which describes methods) by focusing on execution.
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 provides explicit guidance on when to use safety flags (confirm_write, i_understand_this_modifies_data) based on the method's safety class, and mentions subscription gate and rate limits. However, it does not explicitly state when not to use the tool or suggest alternatives, though the context implies that for description or listing, other siblings should be used.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_describe_methodA
Get a complete description of one Ozon API method.
Returns the method's metadata plus fully-resolved JSON Schema for request and responses. All $ref pointers are inlined; oneOf/anyOf/allOf combinators are preserved verbatim. When knowledge layer is loaded, also includes rate_limit, quirks, examples, and related methods — everything an agent needs to call the method correctly.
Provide either operation_id (preferred) OR path (+ optional http_method).
| Name | Required | Description | Default |
|---|---|---|---|
| path | No | ||
| http_method | No | ||
| operation_id | No |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure, and it mostly delivers. It reveals that all $ref pointers are inlined, combinators are preserved verbatim, and the response conditionally includes rate_limit, quirks, examples, and related methods when the knowledge layer is loaded. It does not mention behavior for invalid, missing, or ambiguous input, but the main output characteristics are clearly disclosed.
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 compact and front-loaded: purpose first, then key output behavior, then input instructions. Every sentence adds value, and there is no filler or repetition of schema field titles. The length is appropriate for the tool's complexity.
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 method-description tool, the description is largely complete: it covers what is returned, the conditional enrichment, and the parameter selection strategy. It could be stronger by noting error behavior or when to prefer sibling discovery tools, but the presence of an output schema reduces the need to explain return values in prose.
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 0%, so the description must compensate, and it does. It explains the relationship between path and http_method, identifies operation_id as the preferred alternative, and states that path can be optionally paired with http_method. It stops short of giving concrete formats or examples, but the core semantic distinction between the two lookup modes is present.
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 opens with a specific verb and resource: 'Get a complete description of one Ozon API method.' It goes beyond a generic statement by specifying the unique output traits—fully-resolved JSON Schema, inlined $ref pointers, preserved combinators—that distinguish this tool from sibling introspection tools. The scope ('one method') is explicit.
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 gives clear input-selection guidance ('Provide either operation_id (preferred) OR path (+ optional http_method)'), which helps the agent choose between parameter combinations. However, it does not explicitly explain when to use this tool versus siblings like ozon_search_methods or ozon_get_related_methods. The usage context is implied rather than stated with alternatives or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_fetch_allA
Fetch all pages of a paginated Ozon endpoint.
Walks the endpoint's pagination pattern (offset/page/last_id/cursor/
page_token — see knowledge/pagination_patterns.yaml) until the
endpoint reports the last page or max_items is reached. Per-page
rate limits are still enforced via the same machinery as
ozon_call_method.
Args: operation_id: same as ozon_call_method, must support pagination params: request body WITHOUT offset/limit/last_id/cursor — the paginator owns those fields max_items: safety cap, range [1, MAX_FETCH_ALL_ITEMS] cabinet_tier: override the cached cabinet tier
Returns:
{"items": [...], "total_fetched": N, "truncated": bool, "pages_fetched": int} on success or a structured OzonError
on failure.
| Name | Required | Description | Default |
|---|---|---|---|
| params | No | ||
| max_items | No | ||
| cabinet_tier | No | ||
| operation_id | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden. It details pagination walking, rate limit enforcement, safety cap, and return format. The reference to an external knowledge file adds context, though the agent may need to resolve it.
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 well-organized with clear sections (Args, Returns) and essential details. It is slightly dense in the first paragraph but overall efficient and front-loaded with the main purpose.
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?
Given the tool's complexity (pagination handling) and the presence of an output schema, the description covers argument semantics, return structure, and safety mechanisms. It could include a simple example but is otherwise complete.
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 0%, so the description must add meaning. It thoroughly explains each parameter: operation_id (same as call method), params (without pagination fields), max_items (range), and cabinet_tier (override). This is far beyond the bare schema.
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 states the tool fetches all pages of a paginated Ozon endpoint, using a specific verb and resource. It distinguishes from sibling tools like ozon_call_method by explicit mention of pagination walking.
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 explains when to use this tool (for paginated endpoints) and provides constraints like max_items and ownership of pagination fields. It mentions rate limits but lacks explicit when-not-to-use guidance or alternatives beyond the implied comparison to ozon_call_method.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_get_error_catalogA
Look up Ozon API errors and their solutions.
Without arguments returns all known errors. With code (e.g. "429" or "InvalidArgument") filters by code. With operation_id returns errors specific to that method plus all generic ones.
| Name | Required | Description | Default |
|---|---|---|---|
| code | No | ||
| operation_id | No |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden and it does disclose the key behavioral outcomes: return all errors, filter by code, or return method-specific plus generic errors. The main gap is how the tool behaves when both code and operation_id are supplied together, but core transparency is strong.
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 first sentence states the core purpose, followed by three terse, high-signal sentences covering each argument mode. There is no filler and every sentence earns its place.
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 lookup tool with two optional parameters and an output schema, the description covers the main behaviors and parameter meanings well. The only notable omission is the combined `code` + `operation_id` case, which is a minor completeness gap.
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 0%, and the description fully compensates: it explains what `code` does with examples and explains the meaningful behavior of `operation_id` (method-specific plus generic errors). Each parameter receives semantic context the schema lacks.
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 states a specific verb ('Look up') and resource ('Ozon API errors and their solutions'), and explicitly explains the three invocation modes (no arguments, by code, by operation_id). This makes the tool's purpose immediately distinguishable from siblings like rate limits, examples, or method descriptions.
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 gives clear usage context by telling exactly what happens with no arguments, with a code, and with an operation_id. It does not explicitly discuss alternatives or when not to use the tool, so it stops short of the top score, but the run-mode guidance is concrete and actionable.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_get_examplesB
Get hand-crafted request examples for one method.
Examples are real, validated payloads matching the method's request schema — copy them as starting points for your own calls.
| Name | Required | Description | Default |
|---|---|---|---|
| operation_id | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It adds value by stating the examples are 'real, validated payloads matching the method's request schema,' which is a meaningful guarantee. However, it doesn't disclose error behavior, whether multiple examples are returned, or any limitations.
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?
Two sentences, front-loaded with the core purpose and a practical usage hint. There is no filler or repetition; every clause contributes meaningful information.
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 one-parameter tool with an output schema, the description conveys the purpose and the nature of the returned data. However, it omits how to discover a valid operation_id and offers no context about when this tool is the right choice, leaving an agent partially under-informed.
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 0%, so the description must compensate for the undocumented operation_id parameter. It only loosely ties the parameter to 'one method' and doesn't explain what the ID looks like or where to obtain it. This leaves a significant gap for an agent selecting a value.
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 uses a specific verb ('Get') and a distinct resource ('hand-crafted request examples for one method'), making it clear that this tool returns example payloads rather than descriptions or schemas. It is distinguishable from sibling tools like describe_method or search_methods, though it does not explicitly name an alternative.
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 gives no guidance on when to choose this tool over siblings. The phrase 'copy them as starting points for your own calls' explains how to use the result, not when to invoke the tool. It also doesn't mention how to find a valid operation_id via related tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_get_rate_limitsA
Look up rate limits for a method, section, or the whole API.
Without arguments returns all known limits. With operation_id, returns the most specific limit (per-method overrides per-section overrides global).
NOTE: Many limits in v0.2 are conservative guesses (source: 'guess'). Verify against real Ozon responses before relying on them in production.
| Name | Required | Description | Default |
|---|---|---|---|
| section | No | ||
| operation_id | No |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It discloses the read-only lookup behavior, the precedence behavior, and importantly warns that 'many limits in v0.2 are conservative guesses (source: 'guess')' and advises verification before production use. This is substantive behavioral context beyond the schema.
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 compact and front-loaded with the core purpose. Every sentence earns its place: the first states what the tool does, the second explains argument behavior, and the note conveys an essential reliability caveat. No redundant filler.
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 read-only lookup tool with two optional parameters and an output schema, the description covers the main usage modes and adds an important data-quality warning. It could more explicitly define what values 'section' expects and how to discover valid section identifiers, but sibling discovery tools likely cover that gap.
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 0%, so the description must compensate. It explains operation_id's meaning and precedence behavior clearly. The 'section' parameter is implied by 'a method, section, or the whole API' but not given a dedicated explanation; still, its purpose is reasonably inferable.
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 uses a specific verb ('Look up') and clearly identifies the resource ('rate limits') and scope options ('a method, section, or the whole API'). This distinguishes it from sibling tools like ozon_describe_method or ozon_search_methods, which serve clearly different purposes.
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 gives concrete invocation guidance: 'Without arguments returns all known limits' and 'With operation_id, returns the most specific limit'. It explains the precedence rule per-method over per-section over global. It does not explicitly contrast with sibling tools, but the focused scope makes the usage context clear.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_get_sectionA
List all methods inside a section (by section name or tag).
Args: query: section name or tag, e.g. "FinanceAPI", "Финансовые отчёты", "ProductAPI"
| Name | Required | Description | Default |
|---|---|---|---|
| query | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the behavioral disclosure burden. It conveys that the tool is a read-only lookup ('List') and explains how the query is interpreted (section name or tag), but it does not mention matching behavior, error cases, or other operational details. This is adequate for a simple lookup tool but not rich.
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 short, front-loaded with the core purpose, and includes a concise parameter explanation with examples. Every sentence adds value and there is no redundant filler.
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 single-parameter, simple lookup tool with an output schema present, the description is complete enough. It tells the agent what the tool does, how the query parameter works, and what kind of answer to expect. No critical missing information prevents 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 schema only defines 'query' as a string with 0% coverage, so the description fully compensates by explaining that it accepts a section name or tag and providing concrete examples like 'FinanceAPI' and 'Финансовые отчёты'. This adds significant meaning beyond the schema.
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 states the tool's function: 'List all methods inside a section' with a specific resource and query input. It differentiates well from sibling tools like ozon_list_sections and ozon_describe_method by indicating that it returns methods within a section.
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 intended use case is clear: call this when you need all methods belonging to a section identified by name or tag. It does not explicitly state when not to use it or mention alternatives, but the context is unambiguous enough for an agent to select it appropriately.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_get_subscription_statusA
Get the current account's subscription tier from /v1/seller/info.
Returns the subscription type, the is_premium flag, plus the list
of all Ozon API methods that might require this exact tier.
Result is cached per server process; pass refresh=True to
bypass the cache. Errors are NEVER cached.
Available only when seller credentials are configured.
| Name | Required | Description | Default |
|---|---|---|---|
| refresh | No |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Discloses caching (per process, refreshable, errors never cached) and credential requirement. No annotations exist so description carries burden. Lacks mention of idempotency or rate limits, but acceptable for a read-only tool.
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?
Four concise sentences, front-loaded with main purpose, no redundant words. Each sentence adds distinct information.
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?
Tool is simple (1 param, no required ones) and has output schema. Description covers purpose, input, caching, prerequisite, and output content. Complete for reliable agent usage.
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?
With 0% schema coverage, description explains the sole parameter 'refresh': 'pass refresh=True to bypass cache'. Adds practical meaning beyond schema's default.
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?
Clearly states the verb 'get' and resource 'subscription tier' from a specific endpoint. Specifies return values (type, is_premium flag, list of methods). Distinguishes from sibling tools like ozon_list_methods_for_subscription.
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?
Provides context: prerequisite (seller credentials), caching behavior, and refresh bypass. Does not explicitly exclude scenarios or compare with alternatives, but sufficient for most cases.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_get_swagger_metaA
Return metadata about the bundled Ozon swagger snapshots.
Tells the caller which spec version we are shipping, how many methods it contains, when the snapshot was refreshed, and the SHA-256 of the file. Useful for:
agents that need to decide whether to re-check docs online;
operators validating that a refresh actually landed;
bug reports — include this in the issue so reproduction is exact.
Returns {"error": "missing"} when the package was built without
swagger_meta.json (pre-v0.6 snapshot).
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden. It discloses the return contents (spec version, method count, refresh timestamp, SHA-256) and the error case ('{"error": "missing"}') with a version qualifier. It does not mention side effects or network behavior, but the tone and content make this a read-only metadata operation.
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 front-loaded with the main purpose, followed by a tidy bullet list of use cases and a clear error note. Every sentence contributes information; the structure makes the content scannable without redundancy.
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 no-parameter tool with an output schema, the description provides all necessary context: what is returned, why it is useful, and what the failure mode looks like. Nothing an agent needs to invoke the tool correctly is missing.
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 tool has zero parameters, so the baseline is 4. There is nothing to explain about parameter semantics, and the description correctly focuses on the output. No parameter documentation is needed.
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 uses a specific verb ('Return metadata') and a clear resource ('bundled Ozon swagger snapshots'), then lists the exact pieces of metadata delivered. It clearly distinguishes itself from sibling tools like ozon_search_methods or ozon_describe_method, which operate on API operations rather than the snapshot itself.
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 'Useful for' section gives concrete, actionable scenarios: deciding whether to re-check docs online, validating a refresh, and including in bug reports. It does not explicitly name alternative tools or state when not to use it, but the use cases are specific enough to guide selection among siblings.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_get_workflowA
Get the full step-by-step plan for one workflow.
Returns ordered steps with operation_ids, pagination/batching/concurrency
guidance, recommended DB schema, and known gotchas. Analytical
workflows additionally carry interpret (how to read the data),
when_to_use (situations the workflow fits) and common_mistakes.
Args: name: workflow name from ozon_list_workflows, e.g. "sync_orders_fbs" or "oos_risk_analysis"
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden, and it does well by describing the rich return behavior: ordered steps, operation_ids, pagination/batching/concurrency guidance, recommended DB schema, and known gotchas. It also discloses conditional content for analytical workflows. It does not explicitly state that the operation is read-only, but 'Get' and 'Returns' strongly imply a safe retrieval.
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 compact and well-structured: a one-line primary purpose, a concise summary of return contents, and a focused Args section. No filler or repetition exists, and the most important action is front-loaded.
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 single-parameter retrieval tool with an output schema present, the description is complete enough. It identifies the prerequisite source for the argument, gives representative examples, and summarizes the return value. Agents can confidently select and invoke this tool without needing additional context.
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 schema provides only a bare 'name' string with no description, so 0% schema coverage. The description compensates fully by explaining that name is a workflow name from ozon_list_workflows and offering two realistic examples ('sync_orders_fbs', 'oos_risk_analysis'). This gives the agent the exact source and format of valid values.
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 opens with a specific verb and resource: 'Get the full step-by-step plan for one workflow.' It clearly differentiates from sibling tools like ozon_list_workflows because it targets a single workflow rather than listing all workflows, and it does not overlap with method-focused siblings like ozon_describe_method.
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 provides clear context for when to use the tool: after obtaining a workflow name from ozon_list_workflows. It gives concrete examples of valid names. It does not explicitly state when NOT to use it or name alternatives, but the one-workflow scope and prerequisite are clear enough for an agent to route correctly.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_list_methods_for_subscriptionA
List all Ozon methods that mention a specific subscription tier.
Useful when an agent wants to know "what extra capabilities do I unlock by upgrading to Premium Plus?" or "which methods will fail without Premium?". Tiers are auto-extracted from method documentation, so this is a hint, not a contract — the actual hard 403 set may differ.
Args: tier: one of UNSPECIFIED, PREMIUM_LITE, PREMIUM, PREMIUM_PLUS, PREMIUM_PRO
| Name | Required | Description | Default |
|---|---|---|---|
| tier | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden, and it handles this well by disclosing that tiers are auto-extracted from documentation, calling the result a 'hint, not a contract', and warning that the actual 403 set may differ. This is exactly the kind of behavioral nuance an agent needs to avoid over-trusting the output.
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 compact and front-loaded: the first sentence states the core function, followed by practical use cases, a critical caveat, and parameter values. Each sentence earns its place; there is no filler or repetition of structured data.
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 one-parameter tool with an output schema present, the description covers purpose, when to use it, the main reliability caveat, and the complete set of valid parameter values. Nothing necessary for an agent to invoke it correctly is missing.
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 0%, so the description must compensate for the schema's bare string type. It does so by enumerating the valid tier values: UNSPECIFIED, PREMIUM_LITE, PREMIUM, PREMIUM_PLUS, and PREMIUM_PRO, and by tying them to subscription tiers in the usage examples. This adds real meaning beyond the input schema.
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 states a specific verb and resource: 'List all Ozon methods that mention a specific subscription tier.' It clearly differentiates from sibling tools like ozon_search_methods or ozon_get_related_methods by focusing on subscription-tier membership, and it reinforces this with concrete user questions.
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 gives clear when-to-use guidance through examples like 'what extra capabilities do I unlock by upgrading to Premium Plus?' and 'which methods will fail without Premium?'. It does not explicitly name alternative tools or state when not to use it, but the context is unambiguous enough for an agent to select it appropriately.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_list_sectionsA
List all Ozon API sections (Seller + Performance) with method counts.
Use this first to orient yourself in the API. Returns sections grouped by api ('seller' or 'performance'), each with the human-readable section name, the underlying tag, and the number of methods inside.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full disclosure burden. It clearly explains behavior: returns sections grouped by api, includes section name, tag, and method count, and covers both seller and performance APIs. It does not mention auth or side effects, but the listing nature and zero parameters make those less critical.
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?
Three short sentences: purpose, usage, and output structure. The primary action is front-loaded, and every sentence carries useful information without padding.
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?
Given the tool's low complexity, zero parameters, and available output schema, the description is complete. It tells the agent when to use it, what it lists, and how the result is structured. Nothing important is missing for selecting and invoking it correctly.
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 tool has zero parameters, and schema coverage is 100%, so there are no parameter semantics to clarify. The description correctly adds no parameter-related confusion and earns the zero-parameter baseline of 4.
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?
States a specific verb and resource: 'List all Ozon API sections' with explicit scope ('Seller + Performance') and output ('method counts'). The description makes the tool's purpose immediately clear and distinct from focused sibling tools like ozon_get_section.
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?
Gives explicit entry-point guidance: 'Use this first to orient yourself in the API.' This tells the agent when to invoke the tool. It does not name exclusions or alternatives, but for a zero-parameter orientation tool this is sufficient context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_list_workflowsA
List all curated workflows, optionally filtered by category.
Workflows are step-by-step recipes for chaining Ozon API methods into
real data pipelines or analytical reports. Use ozon_get_workflow
to fetch the full plan for a specific workflow.
Args:
category: optional filter — one of "catalog", "orders",
"analytics", "health", "pricing", "content", "advertising",
"warehouse", "returns", "finance". When provided, only
workflows in that category are returned. categories in
the response always lists every value present in the catalogue.
| Name | Required | Description | Default |
|---|---|---|---|
| category | No |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses the read-only listing behavior, the optional category filter, and adds a useful nuance: 'categories in the response always lists every value present in the catalogue.' This goes beyond the bare operation and gives the agent a clearer model of the tool's behavior.
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 structured with a clear one-sentence purpose, a brief explanatory paragraph about workflows, a pointer to the sibling tool, and a structured Args section. The category list is somewhat long but necessary, and every sentence contributes a useful detail.
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 list operation with one optional parameter and an existing output schema, the description is nearly complete. It covers purpose, filtering behavior, category values, and the sibling tool for deeper details. It doesn't explicitly mention the absence of required parameters or error handling, but 'optional' and the provided category list imply this well enough.
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 0%, so the description must fully explain the parameter. It does: category is described as optional, its allowed values are enumerated, and the filtering behavior is specified. This fully compensates for the missing schema descriptions.
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 opens with a clear, specific statement: 'List all curated workflows, optionally filtered by category.' It identifies the resource (curated workflows) and the action (list), and distinguishes itself from the sibling ozon_get_workflow by explaining that the sibling fetches the full plan. This makes the tool's purpose unmistakable.
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 gives clear context for when to use this tool ('List all curated workflows') and explicitly routes the agent to ozon_get_workflow when a full plan is needed. It does not explicitly discuss exclusions or when not to use it, but the sibling differentiation and category filter behavior provide adequate guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ozon_search_methodsA
Full-text search across all Ozon API methods.
Searches over operation_id, path, summary, description, section, and tag using BM25 ranking with field boosting (summary x4, path/op_id x3, description x1). Supports Russian and English queries with stemming.
Args: query: free-text query, e.g. "list of postings" or "финансовые транзакции" section: optional filter — match by section name or tag (case-insensitive substring) api: optional filter — "seller" or "performance" safety: optional filter — "read", "write", or "destructive" limit: max results to return (default 10)
| Name | Required | Description | Default |
|---|---|---|---|
| api | No | ||
| limit | No | ||
| query | Yes | ||
| safety | No | ||
| section | No |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden. It discloses the BM25 ranking algorithm, field boosting weights, Russian/English stemming support, and available filters. This goes well beyond a basic statement and gives an agent realistic expectations about search behavior.
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 well-structured and front-loaded: a clear one-line purpose, followed by relevant search behavior details, then a compact argument list. Every sentence contributes useful information with no repetition or filler.
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?
The description covers search semantics, all parameters, and filtering options. Since an output schema exists, not detailing the return format is acceptable. The main gap is the lack of explicit routing guidance relative to sibling search/knowledge tools, but overall it is close to complete for this tool's complexity.
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 0%, and the description fully compensates. It explains query with examples, describes section, api, safety, and limit, and even specifies allowed values such as 'read', 'write', and 'destructive'. This adds significant meaning beyond the bare schema.
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 immediately states a specific action — full-text search across all Ozon API methods — and identifies the exact searched fields (operation_id, path, summary, description, section, tag). This clearly distinguishes it from sibling tools like ozon_list_sections or ozon_describe_method.
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?
Usage is implied: use this tool when you need to find API methods by free-text query. However, it does not explicitly say when to prefer this over alternatives such as ozon_search_operations_knowledge or ozon_get_related_methods, nor does it state any exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
15 tool updates
v0.6.0- First observed
ozon_call_method - First observed
ozon_describe_method - First observed
ozon_fetch_all - First observed
ozon_get_error_catalog - First observed
ozon_get_examples - First observed
ozon_get_rate_limits - First observed
ozon_get_related_methods - First observed
ozon_get_section - First observed
ozon_get_subscription_status - First observed
ozon_get_swagger_meta - First observed
ozon_get_workflow - First observed
ozon_list_methods_for_subscription - First observed
ozon_list_sections - First observed
ozon_list_workflows - First observed
ozon_search_methods
TDQS
Scored across 15 tools
Most tools are clearly distinct: listing sections, searching methods, describing methods, workflows, rate limits, errors, examples, and calling methods all have separate purposes. The only mild overlap is between ozon_list_sections and ozon_get_section (both navigate the API structure), but their roles are differentiated enough by description.
The tools follow a consistent ozon_verb_noun pattern (list_sections, search_methods, describe_method, get_section, get_related_methods, list_workflows, get_workflow, get_rate_limits, get_error_catalog, get_examples, get_swagger_meta, list_methods_for_subscription, get_subscription_status, call_method, fetch_all). Minor deviation: ozon_fetch_all uses a verb+adverb instead of verb_noun, and ozon_call_method is a generic verb rather than a resource-specific one, but the pattern is otherwise highly predictable.
15 tools is well-scoped for an Ozon API MCP server that needs to cover discovery, documentation, workflows, rate limits, errors, examples, and execution. Each tool serves a distinct function in the API exploration and calling lifecycle, and none feel redundant.
The server covers the full API interaction lifecycle: orientation (list_sections), search (search_methods), deep documentation (describe_method), related methods, curated workflows, rate limits, errors, examples, subscription gating, direct calling, and pagination. There are no obvious dead ends—an agent can discover, understand, and execute any Ozon API method.
Maintenance
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