# Knowledge Base Maintenance Duplicate Key Report + Secondary-Measure Weighted Mean

> Knowledge Base Maintenance Duplicate Key Report + Secondary-Measure Weighted Mean is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-25).

Runs two analytical reports on knowledge base maintenance data: a duplicate key report and a secondary-measure weighted mean, over up to 200 rows of updated_articles and due_articles records.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-writing-16-067?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/knowledge-base-maintenance-duplicate-key-report-secondary-measure-476ffd1a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9bPtntnJzF0wIEsgKsGUE

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability knowledge-base-maintenance-duplicate-key-report-secondary-measure-476ffd1a -d '<json body>'
```

Example prompt: Can you run a duplicate key report and a weighted mean analysis on my knowledge base maintenance records — I have rows with document_group, date, row_id, updated_articles, and due_articles fields, and I want to analyze updated_articles as the secondary measure?

## When to prefer this

Choose this endpoint when you have up to 200 rows of knowledge base maintenance data and need both a duplicate key integrity check and a weighted mean calculation in a single low-cost call ($0.01 USDC for both reports). Ideal for lightweight, offline analytical passes on KB management datasets without needing a full analytics platform or live data pipeline.

## Known failure modes

- Input array is empty or missing required fields (row_id, document_group, date, updated_articles, due_articles) — returns validation error
- More than 200 rows supplied — rejected due to row limit
- Invalid date format not matching YYYY-MM-DD pattern — schema validation failure
- Non-numeric values in updated_articles or due_articles — type error
- Field enum value not in [updated_articles, due_articles] — invalid field error

## How this service works

Knowledge base maintenance — Duplicate key report + Secondary-measure weighted mean: Duplicate key report + Secondary-measure weighted mean for supplied knowledge base maintenance records (updated_articles, due_articles). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

## Output

Two analytical reports: (1) a duplicate key report identifying repeated keys within the supplied knowledge base maintenance rows, and (2) a secondary-measure weighted mean calculated over the selected field (updated_articles or due_articles), both computed locally against the supplied data with no external lookups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "document_group",
     "date",
     "updated_articles",
     "due_articles"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "due_articles": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "document_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "updated_articles": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "due_articles": 1,
     "document_group": "group-a",
     "updated_articles": 10
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "due_articles": 2,
     "document_group": "group-b",
     "updated_articles": 20
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "due_articles": 3,
     "document_group": "group-a",
     "updated_articles": 15
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "due_articles": 4,
     "document_group": "group-b",
     "updated_articles": 30
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "updated_articles",
    "due_articles"
   ],
   "type": "string",
   "default": "updated_articles"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/knowledge-base-maintenance-duplicate-key-report-secondary-measure-476ffd1a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)