peira.netlify.app
Peira — see what a raise really does. A shared lab bench where you and an AI agent probe the benefits system together.
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 3 · Act 8 · Transact 0 · Score: Not yet scored
Tool inspector
diff_scenarios
Counterfactual probe: compare the current household against a variant along the same earnings sweep — marriage or a second earner (add an adult), a kid aging past a threshold, different childcare costs, or losing subsidy enrollment. Pass ONLY the fields that change; everything else carries over. Renders both net-resource curves overlaid on the shared canvas with the gap shaded. Use for 'what if' questions a single sweep can't answer.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
label |
string | yes | short human-readable name for the variant, e.g. 'married' or 'kid turns 6' |
changes |
object | yes | fields of the household to replace in the variant |
Raw JSON schema
{
"type": "object",
"properties": {
"label": {
"type": "string",
"description": "short human-readable name for the variant, e.g. 'married' or 'kid turns 6'"
},
"changes": {
"type": "object",
"description": "fields of the household to replace in the variant",
"properties": {
"adults": {
"type": "array",
"minItems": 1,
"maxItems": 2,
"items": {
"type": "object",
"properties": {
"age": {
"type": "integer"
},
"employment_income": {
"type": "number"
},
"weekly_work_hours": {
"type": "number"
}
},
"required": [
"age"
]
}
},
"children": {
"type": "array",
"maxItems": 6,
"items": {
"type": "object",
"properties": {
"age": {
"type": "integer"
},
"yearly_childcare_expenses": {
"type": "number"
}
},
"required": [
"age"
]
}
},
"receiving_childcare_subsidy": {
"type": "boolean"
}
},
"additionalProperties": false
}
},
"required": [
"label",
"changes"
],
"additionalProperties": false
}
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