# CAROC 2010 10-year MOF category

CAROC 2010

Status: LIVE
Price: $0.005 USDC
`GET /api/calc/caroc`
HTML: https://magentlab.com/docs/caroc
Markdown: https://magentlab.com/docs/caroc.md

Not a medical device. Not a diagnosis, dose, or listing recommendation.

## What it computes

Apply the CAROC 2010 10-year major osteoporotic fracture category from caller-assigned age, sex, femoral-neck T-score, and yes/no fragility and glucocorticoid flags. Returns basal_risk_level from the printed T-score table and risk_level after Papaioannou 2010 clinical bumps.

## When to use

When an agent already has age, sex, a femoral-neck T-score, and the published clinical flags and needs the CAROC 2010 low, moderate, or high class. magent does not perform DXA, take a fracture history, or compute a steroid dose. Not FRAX.

## When not to use

- Not a medical device and not a diagnosis or treatment order.
- Not FRAX and not a bisphosphonate order.
- femoral_neck_t_score is caller-assigned. magent does not perform DXA. The NHANES III Caucasian-women reference is a densitometry convention for how that T-score was computed; this tool does not take a race input.
- Age 50-89 only. Ages 50-85 map to the printed 5-year row; 86-89 use the 85-year row.
- Prolonged glucocorticoids means at least 3 months in the prior year at prednisone-equivalent 7.5 mg/day or more, as assigned by the caller. magent does not compute a steroid dose.
- Hip or spine fragility, or multiple fragility fractures, is high regardless of BMD. Fracture after 40 plus prolonged glucocorticoids is high. Either of those two flags alone bumps one class.
- ten_year_mof_label is the published CAROC 2010 category label (low <10%, moderate 10-20%, high >20%), not an individualized percent.

## Formula

```
CAROC 2010 10-year MOF category from age, sex, and caller-assigned femoral-neck T-score, then clinical bumps. row_age = min(85, max(50, 5 * floor(age / 5))) for age 50-89. Basal low if T-score is strictly above the printed moderate floor; high if strictly below the moderate ceiling; moderate inclusive between. Women 50/55: low > -2.5, moderate -2.5 to -3.8, high < -3.8; 60: > -2.3 / -2.3 to -3.7 / < -3.7; 65: > -1.9 / -1.9 to -3.5 / < -3.5; 70: > -1.7 / -1.7 to -3.2 / < -3.2; 75: > -1.2 / -1.2 to -2.9 / < -2.9; 80: > -0.5 / -0.5 to -2.6 / < -2.6; 85: > +0.1 / +0.1 to -2.2 / < -2.2. Men 50/55: low > -2.5, moderate -2.5 to -3.9, high < -3.9; 60: > -2.5 / -2.5 to -3.7 / < -3.7; 65: > -2.4 / -2.4 to -3.7 / < -3.7; 70: > -2.3 / -2.3 to -3.7 / < -3.7; 75: > -2.3 / -2.3 to -3.8 / < -3.8; 80: > -2.1 / -2.1 to -3.8 / < -3.8; 85: > -2.0 / -2.0 to -3.8 / < -3.8. hip_or_spine_fragility or multiple_fragility_fractures → high; else fragility_fracture_after_40 and prolonged_glucocorticoids → high; else either of those two flags bumps one class (low→moderate, moderate→high). Labels: low <10%, moderate 10-20%, high >20% 10-year MOF. Papaioannou 2010 / Lentle table. Not FRAX.
```

## Citation

[2010 clinical practice guidelines for the diagnosis and management of osteoporosis in Canada: summary](https://doi.org/10.1503/cmaj.100771)
Papaioannou A, Morin S, Cheung AM, Atkinson S, Brown JP, Feldman S, et al.
CMAJ. 2010;182(17):1864-1873
DOI: [10.1503/cmaj.100771](https://doi.org/10.1503/cmaj.100771)

## Worked example

### Age 50 woman, T-score -1.0, no flags (low)

Given: `age=50, femoral_neck_t_score=-1.0, fragility_fracture_after_40=false, hip_or_spine_fragility=false, multiple_fragility_fractures=false, prolonged_glucocorticoids=false, sex=female`

1. age 50 maps to row_age 50
2. female row 50: T-score -1.0 is > -2.5 → basal_risk_level low
3. no clinical flags → risk_level low
4. ten_year_mof_label is <10%


### Age 50 woman, T-score -3.0, no flags (moderate)

Given: `age=50, femoral_neck_t_score=-3.0, fragility_fracture_after_40=false, hip_or_spine_fragility=false, multiple_fragility_fractures=false, prolonged_glucocorticoids=false, sex=female`

1. female row 50: T-score -3.0 is in -2.5 to -3.8 inclusive → basal_risk_level moderate
2. no clinical flags → risk_level moderate
3. ten_year_mof_label is 10-20%


### Age 50 woman, T-score -4.0, no flags (high)

Given: `age=50, femoral_neck_t_score=-4.0, fragility_fracture_after_40=false, hip_or_spine_fragility=false, multiple_fragility_fractures=false, prolonged_glucocorticoids=false, sex=female`

1. female row 50: T-score -4.0 is < -3.8 → basal_risk_level high
2. no clinical flags → risk_level high
3. ten_year_mof_label is >20%


### Age 50 woman, T-score -1.0, fragility fracture after 40 (bump to moderate)

Given: `age=50, femoral_neck_t_score=-1.0, fragility_fracture_after_40=true, hip_or_spine_fragility=false, multiple_fragility_fractures=false, prolonged_glucocorticoids=false, sex=female`

1. basal_risk_level is low (T-score -1.0 > -2.5)
2. fragility_fracture_after_40 alone bumps one class → risk_level moderate


### Age 50 woman, T-score -1.0, hip or spine fragility (high)

Given: `age=50, femoral_neck_t_score=-1.0, fragility_fracture_after_40=false, hip_or_spine_fragility=true, multiple_fragility_fractures=false, prolonged_glucocorticoids=false, sex=female`

1. basal_risk_level is low
2. hip_or_spine_fragility is high regardless of BMD → risk_level high


## Also searched as

- CAROC 2010
- CAROC femoral-neck T-score
- 10-year MOF category
- Papaioannou 2010 CAROC
- Lentle CAROC table
- major osteoporotic fracture category
- CAROC low moderate high
- femoral neck T-score bands

## Parameters

- `age` (integer, required): Age in years. CAROC 2010 accepts 50-89 (integer). Ages 50-85 map to the printed 5-year row; 86-89 use the 85-year row. Ages under 50 or over 89 are rejected. magent does not take a date of birth.
- `sex` (string, required): Sex used by the printed table: female or male.
- `femoral_neck_t_score` (number, required): Caller-assigned femoral-neck BMD T-score (-6.0 to 4.0). The NHANES III Caucasian-women reference is a densitometry convention for how that T-score was computed; this tool does not take a race input. magent does not perform DXA.
- `fragility_fracture_after_40` (boolean, required): Fragility fracture after age 40 as assigned by the caller (Papaioannou 2010). true or false. Alone, bumps one class; with prolonged_glucocorticoids, risk_level is high. magent does not take a fracture history.
- `prolonged_glucocorticoids` (boolean, required): Prolonged glucocorticoids as assigned by the caller: at least 3 months in the prior year at prednisone-equivalent 7.5 mg/day or more (Papaioannou 2010). true or false. Alone, bumps one class; with fragility_fracture_after_40, risk_level is high. magent does not compute a steroid dose.
- `hip_or_spine_fragility` (boolean, required): Hip or clinical spine fragility fracture as assigned by the caller (Papaioannou 2010). true or false. When true, risk_level is high regardless of BMD. magent does not read imaging.
- `multiple_fragility_fractures` (boolean, required): Multiple fragility fractures as assigned by the caller (Papaioannou 2010). true or false. When true, risk_level is high regardless of BMD. magent does not take a fracture history.

## Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

Method: `POST /api/calc/caroc`
Max items: 25
Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic)
Status: PREVIEW

- 1 to 25 items. Each item uses the same keys as the GET query parameters.
- POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
- The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
- HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
- Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
- x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request:

```json
{
  "items": [
    {
      "age": "50",
      "femoral_neck_t_score": "-1.0",
      "fragility_fracture_after_40": "false",
      "hip_or_spine_fragility": "false",
      "multiple_fragility_fractures": "false",
      "prolonged_glucocorticoids": "false",
      "sex": "female"
    },
    {
      "age": "50",
      "femoral_neck_t_score": "-1.0",
      "fragility_fracture_after_40": "false",
      "hip_or_spine_fragility": "false",
      "multiple_fragility_fractures": "false",
      "prolonged_glucocorticoids": "false",
      "sex": "female"
    }
  ]
}
```

Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/caroc

Example 200:

```json
{
  "count": 2,
  "path": "/api/calc/caroc",
  "items": [
    {
      "components": [
        {
          "factor": "hip_or_spine_fragility",
          "met": false
        },
        {
          "factor": "multiple_fragility_fractures",
          "met": false
        },
        {
          "factor": "fragility_fracture_after_40",
          "met": false
        },
        {
          "factor": "prolonged_glucocorticoids",
          "met": false
        },
        {
          "value": -1.0,
          "factor": "basal_low",
          "met": true
        },
        {
          "value": -1.0,
          "factor": "basal_moderate",
          "met": false
        },
        {
          "value": -1.0,
          "factor": "basal_high",
          "met": false
        }
      ],
      "age": 50,
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Papaioannou A, Morin S, Cheung AM, Atkinson S, Brown JP, Feldman S, et al.",
        "doi": "10.1503/cmaj.100771",
        "id": "papaioannou-2010",
        "pmid": "20937681",
        "source": "CMAJ. 2010;182(17):1864-1873",
        "title": "2010 clinical practice guidelines for the diagnosis and management of osteoporosis in Canada: summary"
      },
      "formula": "caroc",
      "formula_expression": "CAROC 2010 10-year MOF category from age, sex, and caller-assigned femoral-neck T-score, then clinical bumps. row_age = min(85, max(50, 5 * floor(age / 5))) for age 50-89. Basal low if T-score is strictly above the printed moderate floor; high if strictly below the moderate ceiling; moderate inclusive between. Women 50/55: low > -2.5, moderate -2.5 to -3.8, high < -3.8; 60: > -2.3 / -2.3 to -3.7 / < -3.7; 65: > -1.9 / -1.9 to -3.5 / < -3.5; 70: > -1.7 / -1.7 to -3.2 / < -3.2; 75: > -1.2 / -1.2 to -2.9 / < -2.9; 80: > -0.5 / -0.5 to -2.6 / < -2.6; 85: > +0.1 / +0.1 to -2.2 / < -2.2. Men 50/55: low > -2.5, moderate -2.5 to -3.9, high < -3.9; 60: > -2.5 / -2.5 to -3.7 / < -3.7; 65: > -2.4 / -2.4 to -3.7 / < -3.7; 70: > -2.3 / -2.3 to -3.7 / < -3.7; 75: > -2.3 / -2.3 to -3.8 / < -3.8; 80: > -2.1 / -2.1 to -3.8 / < -3.8; 85: > -2.0 / -2.0 to -3.8 / < -3.8. hip_or_spine_fragility or multiple_fragility_fractures → high; else fragility_fracture_after_40 and prolonged_glucocorticoids → high; else either of those two flags bumps one class (low→moderate, moderate→high). Labels: low <10%, moderate 10-20%, high >20% 10-year MOF. Papaioannou 2010 / Lentle table. Not FRAX.",
      "sex": "female",
      "basal_risk_level": "low",
      "femoral_neck_t_score": -1.0,
      "fragility_fracture_after_40": false,
      "hip_or_spine_fragility": false,
      "multiple_fragility_fractures": false,
      "prolonged_glucocorticoids": false,
      "risk_level": "low",
      "row_age": 50,
      "ten_year_mof_label": "<10%"
    },
    {
      "components": [
        {
          "factor": "hip_or_spine_fragility",
          "met": false
        },
        {
          "factor": "multiple_fragility_fractures",
          "met": false
        },
        {
          "factor": "fragility_fracture_after_40",
          "met": false
        },
        {
          "factor": "prolonged_glucocorticoids",
          "met": false
        },
        {
          "value": -1.0,
          "factor": "basal_low",
          "met": true
        },
        {
          "value": -1.0,
          "factor": "basal_moderate",
          "met": false
        },
        {
          "value": -1.0,
          "factor": "basal_high",
          "met": false
        }
      ],
      "age": 50,
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Papaioannou A, Morin S, Cheung AM, Atkinson S, Brown JP, Feldman S, et al.",
        "doi": "10.1503/cmaj.100771",
        "id": "papaioannou-2010",
        "pmid": "20937681",
        "source": "CMAJ. 2010;182(17):1864-1873",
        "title": "2010 clinical practice guidelines for the diagnosis and management of osteoporosis in Canada: summary"
      },
      "formula": "caroc",
      "formula_expression": "CAROC 2010 10-year MOF category from age, sex, and caller-assigned femoral-neck T-score, then clinical bumps. row_age = min(85, max(50, 5 * floor(age / 5))) for age 50-89. Basal low if T-score is strictly above the printed moderate floor; high if strictly below the moderate ceiling; moderate inclusive between. Women 50/55: low > -2.5, moderate -2.5 to -3.8, high < -3.8; 60: > -2.3 / -2.3 to -3.7 / < -3.7; 65: > -1.9 / -1.9 to -3.5 / < -3.5; 70: > -1.7 / -1.7 to -3.2 / < -3.2; 75: > -1.2 / -1.2 to -2.9 / < -2.9; 80: > -0.5 / -0.5 to -2.6 / < -2.6; 85: > +0.1 / +0.1 to -2.2 / < -2.2. Men 50/55: low > -2.5, moderate -2.5 to -3.9, high < -3.9; 60: > -2.5 / -2.5 to -3.7 / < -3.7; 65: > -2.4 / -2.4 to -3.7 / < -3.7; 70: > -2.3 / -2.3 to -3.7 / < -3.7; 75: > -2.3 / -2.3 to -3.8 / < -3.8; 80: > -2.1 / -2.1 to -3.8 / < -3.8; 85: > -2.0 / -2.0 to -3.8 / < -3.8. hip_or_spine_fragility or multiple_fragility_fractures → high; else fragility_fracture_after_40 and prolonged_glucocorticoids → high; else either of those two flags bumps one class (low→moderate, moderate→high). Labels: low <10%, moderate 10-20%, high >20% 10-year MOF. Papaioannou 2010 / Lentle table. Not FRAX.",
      "sex": "female",
      "basal_risk_level": "low",
      "femoral_neck_t_score": -1.0,
      "fragility_fracture_after_40": false,
      "hip_or_spine_fragility": false,
      "multiple_fragility_fractures": false,
      "prolonged_glucocorticoids": false,
      "risk_level": "low",
      "row_age": 50,
      "ten_year_mof_label": "<10%"
    }
  ]
}
```

## Response fields

- `formula` (string): caroc
- `formula_expression` (string): Published CAROC 2010 basal T-score bands and Papaioannou 2010 clinical bumps
- `age` (integer): Age in years used (50-89)
- `sex` (string): female or male
- `femoral_neck_t_score` (number): Caller-assigned femoral-neck T-score used for the basal class
- `row_age` (integer): Printed 5-year table row (50, 55, 60, 65, 70, 75, 80, or 85)
- `fragility_fracture_after_40` (boolean): Echo of the fragility-fracture-after-40 flag
- `prolonged_glucocorticoids` (boolean): Echo of the prolonged-glucocorticoid flag
- `hip_or_spine_fragility` (boolean): Echo of the hip-or-spine fragility flag
- `multiple_fragility_fractures` (boolean): Echo of the multiple-fragility-fracture flag
- `basal_risk_level` (string): low, moderate, or high from the printed T-score table before clinical bumps
- `risk_level` (string): low, moderate, or high after Papaioannou 2010 bumps. Labels: low <10%, moderate 10-20%, high >20% 10-year MOF. Not FRAX. Not a bisphosphonate order.
- `ten_year_mof_label` (string): Published CAROC 2010 label for risk_level: <10%, 10-20%, or >20%
- `components` (array): Rows for the four clinical flags and basal_low, basal_moderate, basal_high with factor, met, and value
- `citation` (object): Papaioannou 2010 CMAJ citation
- `disclaimer` (string): Not-a-device notice

## Example JSON

Frozen fixture. Not a live lookup.

```json
{
  "components": [
    {
      "factor": "hip_or_spine_fragility",
      "met": false
    },
    {
      "factor": "multiple_fragility_fractures",
      "met": false
    },
    {
      "factor": "fragility_fracture_after_40",
      "met": false
    },
    {
      "factor": "prolonged_glucocorticoids",
      "met": false
    },
    {
      "value": -1.0,
      "factor": "basal_low",
      "met": true
    },
    {
      "value": -1.0,
      "factor": "basal_moderate",
      "met": false
    },
    {
      "value": -1.0,
      "factor": "basal_high",
      "met": false
    }
  ],
  "age": 50,
  "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "citation": {
    "authors": "Papaioannou A, Morin S, Cheung AM, Atkinson S, Brown JP, Feldman S, et al.",
    "doi": "10.1503/cmaj.100771",
    "id": "papaioannou-2010",
    "pmid": "20937681",
    "source": "CMAJ. 2010;182(17):1864-1873",
    "title": "2010 clinical practice guidelines for the diagnosis and management of osteoporosis in Canada: summary"
  },
  "formula": "caroc",
  "formula_expression": "CAROC 2010 10-year MOF category from age, sex, and caller-assigned femoral-neck T-score, then clinical bumps. row_age = min(85, max(50, 5 * floor(age / 5))) for age 50-89. Basal low if T-score is strictly above the printed moderate floor; high if strictly below the moderate ceiling; moderate inclusive between. Women 50/55: low > -2.5, moderate -2.5 to -3.8, high < -3.8; 60: > -2.3 / -2.3 to -3.7 / < -3.7; 65: > -1.9 / -1.9 to -3.5 / < -3.5; 70: > -1.7 / -1.7 to -3.2 / < -3.2; 75: > -1.2 / -1.2 to -2.9 / < -2.9; 80: > -0.5 / -0.5 to -2.6 / < -2.6; 85: > +0.1 / +0.1 to -2.2 / < -2.2. Men 50/55: low > -2.5, moderate -2.5 to -3.9, high < -3.9; 60: > -2.5 / -2.5 to -3.7 / < -3.7; 65: > -2.4 / -2.4 to -3.7 / < -3.7; 70: > -2.3 / -2.3 to -3.7 / < -3.7; 75: > -2.3 / -2.3 to -3.8 / < -3.8; 80: > -2.1 / -2.1 to -3.8 / < -3.8; 85: > -2.0 / -2.0 to -3.8 / < -3.8. hip_or_spine_fragility or multiple_fragility_fractures → high; else fragility_fracture_after_40 and prolonged_glucocorticoids → high; else either of those two flags bumps one class (low→moderate, moderate→high). Labels: low <10%, moderate 10-20%, high >20% 10-year MOF. Papaioannou 2010 / Lentle table. Not FRAX.",
  "sex": "female",
  "basal_risk_level": "low",
  "femoral_neck_t_score": -1.0,
  "fragility_fracture_after_40": false,
  "hip_or_spine_fragility": false,
  "multiple_fragility_fractures": false,
  "prolonged_glucocorticoids": false,
  "risk_level": "low",
  "row_age": 50,
  "ten_year_mof_label": "<10%"
}
```

## Errors

- HTTP 400 `invalid_caroc`: CAROC 2010 inputs must match that system's age 50-85, sex, femoral-neck T-score, and yes/no fragility-fracture and glucocorticoid flags. Returned before settlement; you are not charged.
- HTTP 400 `invalid_age`: age must be an integer from 18 to 120 Returned before settlement; you are not charged.
- HTTP 400 `invalid_sex`: sex must be female or male Returned before settlement; you are not charged.
- HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
- HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
- HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged.

Shared HTTP 402 and 503: https://magentlab.com/docs/payments

## Related tools

- [OSTA](https://magentlab.com/docs/osta) — Compute the Koh 2001 Osteoporosis Self-Assessment Tool for Asians (OSTA) as trunc(0.2 × (weight_kg − age)) toward zero, then the published low, intermediate, or high band.
- [ORAI](https://magentlab.com/docs/orai) — Sum Cadarette 2000 ORAI (age, weight, and current estrogen use) and return the Table 4 point total with select_for_dxa (score ≥9) or do_not_select.
- [OSIRIS](https://magentlab.com/docs/osiris) — Compute the Sedrine 2002 Osteoporosis Index of Risk (OSIRIS) as (-0.2 × age) + (0.2 × weight_kg) + 2 if current HRT/estrogen use + (-2) if prior low-impact fracture, rounded to 1 decimal, then the published low, intermediate, or high band.

## Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s.

- GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall).
- HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote.
- Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering.
- Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional.
- Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402.

- offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront.
- offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization.

- not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search.

Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers).

Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments

Stdio MCP (one process per host): https://magentlab.com/docs/mcp

## Guarantees

- HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
- exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
- HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
- Execution is timeout-bounded and concurrency-capped.
- Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.