Docs · Model reference

salary-jump

Verified · spec v1.0.1

Full specification JSON contract Live demo calculator

Inputs

Field	Type	Valid domain
currentSalary	float	30,000 – 500,000
newSalary	float	30,000 – 500,000
currentAge	int	22 – 60
retirementAge	int	45 – 75
currentSavings	float	0 – 1,000,000
currentSavingsRate	float	0.01 – 0.5
newSavingsRate	float	0.01 – 0.5
annualReturn	float	0.02 – 0.15
marginalTaxRate	float	0.1 – 0.5

retirementAge must exceed currentAge

All fields required. Out-of-domain values are rejected with per-field errors — never clamped. Unknown fields are rejected.

Sentinel values

currentFireYears = 50 → FIRE not reached within the 600-month loop (intermediate; clamps fireYearsGained)
newFireYears = 50 → FIRE not reached within the 600-month loop (intermediate; clamps fireYearsGained)

Responses annotate these in a sentinels array with a triggered flag per run.

Live example — generated from the real engine

Request

POST /api/v1/models/salary-jump
{
  "currentSalary": 265000,
  "newSalary": 265000,
  "currentAge": 41,
  "retirementAge": 60,
  "currentSavings": 500000,
  "currentSavingsRate": 0.26,
  "newSavingsRate": 0.26,
  "annualReturn": 0.09,
  "marginalTaxRate": 0.3
}

Response (chart arrays compacted)

{
  "ok": true,
  "model": "salary-jump",
  "specVersion": "1.0.1",
  "contractUrl": "/api/v1/models/salary-jump",
  "specUrl": "/api/v1/models/salary-jump/spec",
  "inputs": {
    "currentSalary": 265000,
    "newSalary": 265000,
    "currentAge": 41,
    "retirementAge": 60,
    "currentSavings": 500000,
    "currentSavingsRate": 0.26,
    "newSavingsRate": 0.26,
    "annualReturn": 0.09,
    "marginalTaxRate": 0.3
  },
  "outputs": {
    "currentFIRENumber": 3431750,
    "newFIRENumber": 3431750,
    "currentRetirementBalance": 4979005.759769895,
    "newRetirementBalance": 4979005.759769895,
    "additionalWealth": 0,
    "fireYearsGained": 0,
    "yearlyData": [
      {
        "year": 41,
        "currentPath": 500000,
        "newPath": 500000
      },
      {
        "year": 42,
        "currentPath": 595270.0741630172,
        "newPath": 595270.0741630172
      },
      "… 18 more"
    ]
  },
  "sentinels": [
    {
      "field": "currentFireYears",
      "value": 50,
      "meaning": "FIRE not reached within the 600-month loop (intermediate; clamps fireYearsGained)",
      "triggered": false
    },
    {
      "field": "newFireYears",
      "value": 50,
      "meaning": "FIRE not reached within the 600-month loop (intermediate; clamps fireYearsGained)",
      "triggered": false
    }
  ],
  "assumptions": [
    "Implements model spec salary-jump v1.0.1 (dual-implementation verified).",
    "retirementAge must exceed currentAge"
  ],
  "facts": [],
  "record": {
    "sha256": "fbaa90f3538bfedf0560883ce59c58a34ae31cdd176ad6b57e135e0208d122d1",
    "fields": [
      "model",
      "specVersion",
      "inputs",
      "outputs"
    ],
    "howToVerify": "Store this record with any advice or agent output built on these numbers. To verify later: build {model, specVersion, inputs, outputs} from the stored response, serialize as JSON with object keys sorted recursively (no whitespace), and SHA-256 it — a match proves the numbers came from this spec version with these inputs, unaltered."
  },
  "disclaimer": "Illustrative planning model, not financial advice. Outputs follow the published model spec exactly; read the spec for assumptions and exclusions before relying on any number."
}

This example is executed against the production engine when the page builds — it cannot drift from the API's real behavior.