Luma Payroll Gym
← Heatmap / MiMo V2.6 Pro · Task 33
MiMo V2.6 Pro · Tool use · Task 33 (Retrieval, contribution rate) Mean 100.0%
Field Expected Rollout #1 (100%) Rollout #2 (100%) Rollout #3 (100%)
decision retrieve retrieve retrieve retrieve
field contribution_rate contribution_rate contribution_rate contribution_rate
value 0.04 0.04 0.04 0.04
clauses R1 R3 R1 R3 R1 R3 R1 R3
Prompt
Retrieve contribution_rate from the supplied rulebook. Return the R8 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 #1 100.0% passed · 4 tool calls · 20.9s · $0.0006
ComponentScoreClauses
decision 100.0% R1 R3
exact 100.0% R1 R3
field accuracy 100.0% R1 R3
citations 100.0% R1 R3
Assistant
list_documents()lookup_reference(reference="first-half")lookup_reference(reference="second-half")
Reasoning
The task says "Retrieve contribution_rate from the supplied rulebook." But R8 says retrieval tasks ask for exactly one named value for its supplied payroll month. The user didn't supply a payroll month explicitly here... Let me list documents to see the case inputs.

Actually the prompt says to retrieve the case inputs with list_documents and read_document. Let me do that first.
Tool
[
  {"id": "7ea2b8cfd840bfb4-payroll", "kind": "payroll"}
]
Tool
{
  "reference": "first-half",
  "months": ["2026-01", "2026-06"],
  "rate": "0.04",
  "cap": "4000.00",
  "deduction": "400.00",
  "free": "1200.00",
  "upper": "2800.00",
  "middle_rate": "0.14",
  "upper_rate": "0.24"
}
Tool
{
  "reference": "second-half",
  "months": ["2026-07", "2026-12"],
  "rate": "0.07",
  "cap": "4000.00",
  "deduction": "400.00",
  "free": "900.00",
  "upper": "3000.00",
  "middle_rate": "0.12",
  "upper_rate": "0.22"
}
Assistant
read_document(document_id="7ea2b8cfd840bfb4-payroll")
Reasoning
Now read the payroll document to find the payroll month and field requested.
Tool
{
  "kind": "payroll",
  "record": {"payroll_month": "2026-05"}
}
Assistant
{
  "decision": "retrieve",
  "field": "contribution_rate",
  "value": "0.04",
  "clauses": ["R1", "R3"],
  "explanation": "Payroll month 2026-05 is covered by the first-half reference row, whose contribution rate is 0.04."
}
Reasoning
The payroll month is 2026-05, which falls in the first-half row (months: 2026-01 through 2026-06 presumably — it lists ["2026-01", "2026-06"] as boundaries). Rate = 0.04.

Retrieval: decision "retrieve", field "contribution_rate", value "0.04", clauses: R1 and R3 (cite selecting rule R1 and source rule R3).

Wait, value should be a decimal string, not percentage. "0.04". Should it be "0.04" or "0.0400"? Decimal strings — "0.04" is fine. Let me not over-engineer.

Money strings need2 decimals but this is a rate. R8 says values are decimal strings. So "0.04" is fine.

Clauses: ["R1", "R3"].
Rollout #2 100.0% passed · 3 tool calls · 22.6s · $0.0006
ComponentScoreClauses
decision 100.0% R1 R3
exact 100.0% R1 R3
field accuracy 100.0% R1 R3
citations 100.0% R1 R3
Assistant
list_documents()
Reasoning
The task is a retrieval task for contribution_rate. But we need payroll month to select reference row. The task says "Retrieve contribution_rate from the supplied rulebook." We need to list documents to find the payroll month.

Let me list documents and read them.
Tool
[
  {"id": "7ea2b8cfd840bfb4-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="7ea2b8cfd840bfb4-payroll")
Reasoning
Read the document.
Tool
{
  "kind": "payroll",
  "record": {"payroll_month": "2026-05"}
}
Assistant
lookup_reference(reference="first-half")
Reasoning
The payroll month is 2026-05, which is first-half (months 1-6 presumably). Need lookup_reference for first-half to get rate. R8 says retrieval tasks return contribution_rate as decimal string. Let me lookup.

But wait: the field name — contribution_rate. Value is decimal string, not percent sign. Let me lookup first-half.
Tool
{
  "reference": "first-half",
  "months": ["2026-01", "2026-06"],
  "rate": "0.04",
  "cap": "4000.00",
  "deduction": "400.00",
  "free": "1200.00",
  "upper": "2800.00",
  "middle_rate": "0.14",
  "upper_rate": "0.24"
}
Assistant
{
  "decision": "retrieve",
  "field": "contribution_rate",
  "value": "0.04",
  "clauses": ["R1", "R3"]
}
Reasoning
Wait, months ["2026-01", "2026-06"] — odd, but presumably means 2026-01 through 2026-06. 2026-05 falls in first-half. Contribution rate = 0.04.

Hmm, but the value should be a decimal string "0.04"? R8 says values are decimal strings, not percentages with a percent sign. So "0.04". Maybe format "0.04" is fine. Money strings need two decimals but rate is not money. I'll return "0.04".

Clauses: cite R1 and R3 (source rule).
Rollout #3 100.0% passed · 3 tool calls · 26.5s · $0.0004
ComponentScoreClauses
decision 100.0% R1 R3
exact 100.0% R1 R3
field accuracy 100.0% R1 R3
citations 100.0% R1 R3
Assistant
list_documents()
Reasoning
The task is a retrieval task for contribution_rate. But we need payroll month to select the row. Let me look at documents first.
Tool
[
  {"id": "7ea2b8cfd840bfb4-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="7ea2b8cfd840bfb4-payroll")
Reasoning
Let me read the document.
Tool
{
  "kind": "payroll",
  "record": {"payroll_month": "2026-05"}
}
Assistant
lookup_reference(reference="first-half")
Reasoning
Payroll month 2026-05, first half. Let me lookup reference first-half.
Tool
{
  "reference": "first-half",
  "months": ["2026-01", "2026-06"],
  "rate": "0.04",
  "cap": "4000.00",
  "deduction": "400.00",
  "free": "1200.00",
  "upper": "2800.00",
  "middle_rate": "0.14",
  "upper_rate": "0.24"
}
Assistant
{
  "decision": "retrieve",
  "field": "contribution_rate",
  "value": "0.04",
  "clauses": ["R1", "R3"]
}
Reasoning
Retrieve contribution_rate for 2026-05 → first-half row → rate 0.04.