# Specification Traceability — Record Quality Audit + String Normalisation + Equal-Width Histogram

> Specification Traceability — Record Quality Audit + String Normalisation + Equal-Width Histogram is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).

Runs three local analytical reports on specification traceability data: a record quality audit, string normalisation, and an equal-width histogram for a chosen numeric field.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-writing-21-202?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/specification-traceability-record-quality-audit-string-normalisation-90b07aa8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L_ZNwE6oLMFrsw0ohLL6N

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 specification-traceability-record-quality-audit-string-normalisation-90b07aa8 -d '<json body>'
```

Example prompt: Run a record quality audit, string normalisation, and a 10-bin equal-width histogram on my specification traceability data — the field I want histogrammed is mapped_requirements — here are the rows: [{"row_id":"req-1","document_group":"sys-spec","date":"2025-03-01","mapped_requirements":45,"total_requirements":60},{"row_id":"req-2","document_group":"sw-spec","date":"2025-03-02","mapped_requirements":30,"total_requirements":50}].

## When to prefer this

Choose this endpoint when you have specification traceability records (with mapped and total requirement counts per document group) and need three simultaneous analytical reports — quality audit, string normalisation, and a histogram — in a single low-cost call. It is ideal for requirements engineers or systems analysts who want a quick data health check and distribution snapshot without setting up a local analytics pipeline. Prefer it over generic data analysis APIs when your data fits the traceability schema and you want all three reports bundled at $0.01 USDC for up to 200 rows.

## Known failure modes

- More than 200 rows submitted — request rejected due to maxItems limit
- Missing required fields (row_id, document_group, date, mapped_requirements, total_requirements) in any row — validation error
- bins value outside 1–30 range — schema validation failure
- Invalid date format (not YYYY-MM-DD) — pattern validation error
- field value not one of mapped_requirements or total_requirements — enum validation error
- All values null for the chosen field — histogram cannot be computed
- Payment not included or insufficient — x402 payment required response

## How this service works

Specification traceability — Record quality audit + String normalisation + Equal-width histogram: Record quality audit + String normalisation + Equal-width histogram for supplied specification traceability records (mapped_requirements, total_requirements). Up to 200 rows; 3 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 3 supplied-data reports for up to 200 rows.

## Output

Returns three independent analytical reports for the supplied specification traceability rows: (1) a record quality audit flagging completeness and validity issues, (2) a string normalisation report cleaning text fields like document_group, and (3) an equal-width histogram of the chosen numeric field (mapped_requirements or total_requirements) divided into the specified number of bins. All computation is performed locally with no external lookups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "bins": {
   "type": "integer",
   "default": 5,
   "maximum": 30,
   "minimum": 1
  },
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "document_group",
     "date",
     "mapped_requirements",
     "total_requirements"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "document_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "total_requirements": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "mapped_requirements": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "document_group": "group-a",
     "total_requirements": 1,
     "mapped_requirements": 10
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "document_group": "group-b",
     "total_requirements": 2,
     "mapped_requirements": 20
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "document_group": "group-a",
     "total_requirements": 3,
     "mapped_requirements": 15
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "document_group": "group-b",
     "total_requirements": 4,
     "mapped_requirements": 30
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "mapped_requirements",
    "total_requirements"
   ],
   "type": "string",
   "default": "mapped_requirements"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/specification-traceability-record-quality-audit-string-normalisation-90b07aa8/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)