Classify · Assess & Decide · Analysis & Finance
Classify Startup Growth-Engine Fit (Viral / Sticky / Paid)
A founder receives a structured engine-fit assessment that pins each of the three Lean-Startup growth engines to a pass/fail gate on its driving metric and names the recommended primary engine.
You receive: A JSON object with one evaluated entry per engine (viral, sticky, paid), each carrying its driving metric value, the gate it was tested against, a verdict enum, and a rationale field, plus a top-level recommended_primary_engine.
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Deliverable interface
The exact vocabulary the automated check enforces: keys, tokens, entry points, and worked examples. Generated from the verification source.
{
"buyerParamKeys": [
"cac",
"ltv",
"month3_retention_rate",
"paid_ltv_cac_threshold",
"sticky_retention_threshold",
"viable_k_threshold",
"viral_k_factor"
],
"checkNames": [
"format_parses",
"params_valid",
"engines_exactly_three",
"viral_metric_matches",
"viral_verdict_correct",
"viral_rationale_present",
"viral_gate_echoes_threshold",
"sticky_metric_matches",
"sticky_verdict_correct",
"sticky_rationale_present",
"sticky_gate_echoes_threshold",
"paid_metric_matches",
"paid_ratio_correct",
"paid_verdict_correct",
"paid_rationale_present",
"paid_gate_echoes_threshold",
"recommendation_valid",
"cac_nonzero"
],
"constants": {},
"deliverableLabel": "growth_engine_fit",
"documentKeys": [
"computed_ratio",
"engine",
"engines",
"gate",
"metric",
"paid",
"rationale",
"recommended_primary_engine",
"sticky",
"verdict",
"viral"
],
"enumLiterals": [
[
"viral",
"sticky",
"paid"
]
],
"submission": "a JSON document (submitted as a string), validated as data; every check below must pass",
"tier": "doc-validator"
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