# Proposal Preparation — Record Quality Audit + Equal-Width Histogram

> Proposal Preparation — Record Quality Audit + 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 2026-10-26).

Runs a record quality audit and an equal-width histogram analysis on proposal preparation data (completed_sections, planned_sections) for up to 200 rows, returning two independent analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-writing-08-013?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-26
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/proposal-preparation-record-quality-audit-equal-width-histogram-fcf895fc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0rB5MY9xmXNWPp4xHS1Ps

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 proposal-preparation-record-quality-audit-equal-width-histogram-fcf895fc -d '<json body>'
```

Example prompt: Can you run a record quality audit and a 10-bin equal-width histogram on my proposal preparation data? I have rows with completed_sections and planned_sections values across document groups, and I want the histogram on the completed_sections field.

## When to prefer this

Choose this endpoint when you need both a data quality audit and a histogram distribution report on proposal preparation records in a single $0.01 call. It is purpose-built for proposal tracking fields (completed_sections, planned_sections) and handles up to 200 rows with no external dependencies. Prefer it over general-purpose analytics tools when working specifically with proposal section completion data and wanting a lightweight, offline, batch-style analysis.

## Known failure modes

- More than 200 rows submitted — request rejected due to maxItems constraint
- Invalid date format (not YYYY-MM-DD) causes row-level validation failure
- Missing required fields (row_id, document_group, date, completed_sections, planned_sections) causes schema rejection
- bins value outside 1–30 range causes parameter rejection
- All values null for selected field may produce degenerate histogram
- Payment not included or insufficient — x402 payment required at $0.01 USDC

## How this service works

Proposal preparation — Record quality audit + Equal-width histogram: Record quality audit + Equal-width histogram for supplied proposal preparation records (completed_sections, planned_sections). 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 independent reports: (1) a record quality audit flagging issues such as missing values, nulls, or out-of-range entries in the submitted proposal preparation rows; and (2) an equal-width histogram showing the frequency distribution of the chosen field (completed_sections or planned_sections) across a configurable number of bins (1–30). Both reports are computed 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",
     "completed_sections",
     "planned_sections"
    ],
    "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
     },
     "planned_sections": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "completed_sections": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "document_group": "group-a",
     "planned_sections": 1,
     "completed_sections": 10
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "document_group": "group-b",
     "planned_sections": 2,
     "completed_sections": 20
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "document_group": "group-a",
     "planned_sections": 3,
     "completed_sections": 15
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "document_group": "group-b",
     "planned_sections": 4,
     "completed_sections": 30
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "completed_sections",
    "planned_sections"
   ],
   "type": "string",
   "default": "completed_sections"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/proposal-preparation-record-quality-audit-equal-width-histogram-fcf895fc/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)