sootool

name	sootool
description	LLM 확률 추론 한계를 결정론 계산 도구로 대체. 산수·세무·금융·통계 요청 감지 시 자동 호출.

When to invoke

수치 계산이 포함된 모든 요청에서 LLM 직접 연산 대신 SooTool 도구를 호출한다.

Signal	Tool
Numbers + arithmetic	core.add / sub / mul / div or core.batch
income/capital gains/acquisition tax	tax.kr_income / tax.capital_gains_kr / realestate.kr_acquisition_tax
VAT / supply amount	accounting.vat_extract / accounting.vat_add
NPV / IRR / PV / FV / discount rate	finance.pv / fv / npv / irr
Depreciation	accounting.depreciation_straight_line / declining_balance
Business days / holidays	datetime.add_business_days / count_business_days
t-test / confidence interval / p-value	stats.ttest_* / stats.ci_mean
Probability PDF/CDF	probability.normal_* / binomial_* / poisson_*
Matrix / vector operations	geometry.matrix_* / vector_*
Unit conversion	units.convert / units.temperature
Currency conversion	units.fx_convert / fx_triangulate
Multiple scenarios	core.batch
Chain previous result to next calculation	core.pipeline
Bond yield / duration	finance.bond_ytm / bond_duration
Option pricing / Greeks	finance.black_scholes

Active usage contract

1. Session start: call sootool.skill_guide() to load the trigger table.
2. Any response containing numbers must be preceded by a tool call.
3. Cite trace from the tool response in your answer.
4. Never compute arithmetic inline in a prompt.

Tool routing

Numeric request
 ├─ tax / regulatory → tax.* or realestate.*  (year arg REQUIRED)
 ├─ VAT / accounting → accounting.*
 ├─ financial math  → finance.*
 ├─ statistics      → stats.*
 ├─ probability     → probability.*
 ├─ N scenarios     → core.batch
 ├─ chained steps   → core.pipeline
 └─ simple arith    → core.add / sub / mul / div

Anti-patterns

• Do NOT write 40000000 × 0.15 = 6000000 in the prompt — call core.mul.
• Do NOT omit year when calling tax.* — results in UnsupportedPolicyError or wrong rates.
• Do NOT call core.add 10 times — use core.batch instead.
• Do NOT ignore status: "skipped" in pipeline responses.
• Do NOT use trace_level="none" for tax/accounting — audit trail is required.

Playbooks (abbreviated)

payroll_to_net: core.pipeline(mul 12 → tax.kr_income → sub net)

vat_batch_summary: core.batch(vat_extract x N) → core.add supply/vat totals

loan_compare_3: core.batch(loan_schedule x 3 rates)

npv_sensitivity: core.batch(npv x 9 discount rates)

bond_yield_duration: core.batch(bond_ytm + bond_duration)

ab_test_full: ttest_two_sample + ci_mean(A) + ci_mean(B)