Luma Payroll Gym
← Heatmap / Gemini 3.1 Flash Lite · Task 106
Gemini 3.1 Flash Lite · Tool use · Task 106 (Traps, missing gross pay) Mean 90.0%
Field Expected Rollout #1 (90%) Rollout #2 (90%) Rollout #3 (90%)
decision clarify clarify clarify clarify
reason code MISSING_GROSS_PAY MISSING_GROSS_PAY MISSING_GROSS_PAY MISSING_GROSS_PAY
clauses R1 R7 R1 R7 R1 R7 R1 R7
Prompt
Process this monthly payroll record under the supplied rulebook. Return the R6 or R7 JSON answer.
Retrieve the case inputs with list_documents and read_document. Reference rows are available only through lookup_reference. Use calculate for exact decimal arithmetic.
Rollouts
Rollout #1 90.0% explanation · 4 tool calls · 5.5s · $0.0029
ComponentScoreClauses
decision 100.0% R1 R7
exact 100.0% R1 R7
field accuracy 100.0% R1 R7
citations 100.0% R1 R7
explanation 0.0% R1 R7
Assistant
list_documents()
Tool
[
  {"id": "b256826a42768acd-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="b256826a42768acd-payroll")
Tool
{
  "kind": "payroll",
  "record": {"payroll_month": "2026-04"}
}
Assistant
lookup_reference(reference="first-half")
Tool
{
  "reference": "first-half",
  "months": ["2026-01", "2026-06"],
  "rate": "0.07",
  "cap": "5000.00",
  "deduction": "400.00",
  "free": "1200.00",
  "upper": "2800.00",
  "middle_rate": "0.12",
  "upper_rate": "0.18"
}
Assistant
calculate(program="gross_pay = 0.00\nemployee_contribution = 0.00\nallowed_deduction = 0.00\ntaxable_pay = 0.00\nincome_tax = 0.00\nnet_pay = 0.00")
Tool
{
  "results": {"gross_pay": "0.00", "employee_contribution": "0.00", "allowed_deduction": "0.00", "taxable_pay": "0.00", "income_tax": "0.00", "net_pay": "0.00"}
}
Assistant
{
  "decision": "clarify",
  "reason_code": "MISSING_GROSS_PAY",
  "clauses": ["R1", "R7"]
}
Rollout #2 90.0% explanation · 4 tool calls · 5.6s · $0.0032
ComponentScoreClauses
decision 100.0% R1 R7
exact 100.0% R1 R7
field accuracy 100.0% R1 R7
citations 100.0% R1 R7
explanation 0.0% R1 R7
Assistant
list_documents()
Tool
[
  {"id": "b256826a42768acd-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="b256826a42768acd-payroll")
Tool
{
  "kind": "payroll",
  "record": {"payroll_month": "2026-04"}
}
Assistant
lookup_reference(reference="first-half")
Tool
{
  "reference": "first-half",
  "months": ["2026-01", "2026-06"],
  "rate": "0.07",
  "cap": "5000.00",
  "deduction": "400.00",
  "free": "1200.00",
  "upper": "2800.00",
  "middle_rate": "0.12",
  "upper_rate": "0.18"
}
Assistant
calculate(program="gross_pay = 0.00\nemployee_contribution = round(min(gross_pay, 5000.00) * 0.07, 2)\nallowed_deduction = 0.00\ntaxable_pay = gross_pay - employee_contribution - allowed_deduction\ntax_bracket1 = max(0, min(taxable_pay, 1200.00) - 0.00) * 0.00\ntax_bracket2 = max(0, min(taxable_pay, 2800.00) - 1200.00) * 0.12\ntax_bracket3 = max(0, taxable_pay - 2800.00) * 0.18\nincome_tax = round(tax_bracket1 + tax_bracket2 + tax_bracket3, 2)\nnet_pay = gross_pay - employee_contribution - allowed_deduction - income_tax")
Tool
{
  "results": {"gross_pay": "0.00", "employee_contribution": "0.00", "allowed_deduction": "0.00", "taxable_pay": "0.00", "tax_bracket1": "0.00", "tax_bracket2": "0.00", "tax_bracket3": "0.00", "income_tax": "0.00", "net_pay": "0.00"}
}
Assistant
{
  "decision": "clarify",
  "reason_code": "MISSING_GROSS_PAY",
  "clauses": ["R1", "R7"]
}
Rollout #3 90.0% explanation · 4 tool calls · 5.1s · $0.0029
ComponentScoreClauses
decision 100.0% R1 R7
exact 100.0% R1 R7
field accuracy 100.0% R1 R7
citations 100.0% R1 R7
explanation 0.0% R1 R7
Assistant
list_documents()
Tool
[
  {"id": "b256826a42768acd-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="b256826a42768acd-payroll")
Tool
{
  "kind": "payroll",
  "record": {"payroll_month": "2026-04"}
}
Assistant
lookup_reference(reference="first-half")
Tool
{
  "reference": "first-half",
  "months": ["2026-01", "2026-06"],
  "rate": "0.07",
  "cap": "5000.00",
  "deduction": "400.00",
  "free": "1200.00",
  "upper": "2800.00",
  "middle_rate": "0.12",
  "upper_rate": "0.18"
}
Assistant
calculate(program="gross_pay = 0.00\nemployee_contribution = 0.00\nallowed_deduction = 0.00\ntaxable_pay = 0.00\nincome_tax = 0.00\nnet_pay = 0.00")
Tool
{
  "results": {"gross_pay": "0.00", "employee_contribution": "0.00", "allowed_deduction": "0.00", "taxable_pay": "0.00", "income_tax": "0.00", "net_pay": "0.00"}
}
Assistant
{
  "decision": "clarify",
  "reason_code": "MISSING_GROSS_PAY",
  "clauses": ["R1", "R7"]
}