Audit Control Designer

Overview

This skill transforms As-Is business process inventories into comprehensive internal control design documents. It leverages generalized patterns from real audit engagements across industries (F&B, retail, manufacturing) to produce draft control designs that cover all five audit assertions, segregation of duties, KPIs, and implementation roadmaps.

When to Use

• Starting internal control design from an As-Is process inventory
• Building controls for a new audit engagement (SOX, J-SOX, PCAOB)
• Designing controls for a specific business domain (AP, Inventory, COGS, Returns)
• Reviewing and strengthening existing control frameworks
• Preparing for initial audit readiness assessment

Prerequisites

None. This is a knowledge-based skill that uses reference documents for pattern matching and generation.

Input Requirements

Required: As-Is Business Process Inventory

A table or list of business processes with at minimum:

• Process ID
• Process name/description
• Primary owner/department
• Frequency (daily, weekly, monthly)
• Current tools/records used

Optional: Context Variables

Variable	Options	Default
Accounting Standard	US GAAP / IFRS / J-GAAP	US GAAP
Industry	F&B, Retail, Manufacturing, Services	General
Company Scale	Small (<50 employees), Medium (50-500), Large (500+)	Medium
System Environment	Paper+Excel, Partial ERP, Full ERP	Paper+Excel
Regulatory Context	SEC/SOX, J-SOX, Voluntary	SEC/SOX

Workflow

Step 1: Confirm Context Variables

Ask the user to confirm or specify:

• Applicable accounting standard
• Industry and company scale
• Current system environment
• Regulatory requirements

If not specified, use defaults from the table above.

Step 2: Read As-Is Process Inventory

Read the user-provided process inventory. Identify:

• Total number of processes
• Business domains covered
• Frequency distribution (daily/weekly/monthly)
• Manual risk indicators

Step 3: Classify Processes into Business Patterns

Load references/process_patterns.md and classify each process into one or more patterns:

Pattern	Domain	Key Processes
AP (Accounts Payable)	Invoice entry, reconciliation	Procurement, invoice processing, matching
Inventory	Stocktake, adjustments	Counting, valuation, shrinkage tracking
COGS Calculation	Cost computation	Period-end calculation, variance analysis
Returns/Credits	Return processing	Credit notes, period attribution, inventory adjustment
Price Management	Unit cost updates	Price revision, master data changes

Step 4: Select Control Templates

Load references/control_templates.md and select applicable templates based on:

• Matched business patterns from Step 3
• Risk level of each process (High/Medium/Low from the process inventory)
• Audit assertions most at risk for each process (from pattern definitions)

Step 5: Verify Assertion Coverage

Load references/assertion_mapping.md and ensure all five assertions are covered:

• Completeness: All transactions recorded
• Accuracy: Amounts and quantities correct
• Valuation: Appropriate valuation methods applied
• Cut-Off: Correct period attribution
• Existence: Assets and transactions are real

Flag any assertion gaps and recommend additional controls.

Step 6: Perform SoD Analysis

Load references/sod_patterns.md and evaluate:

• Which duty pairs should be separated
• Current separation status (based on process ownership)
• Risk level (High/Medium/Low)
• Compensating controls for small organizations

Step 7: Select KPIs

Load references/kpi_catalog.md and assign KPIs to each control:

• Select relevant KPIs based on control objectives
• Define calculation methods
• Set baseline and target placeholders
• Identify data sources

Step 8: Set Materiality Thresholds

Load references/materiality_framework.md and define:

• Overall Materiality framework
• Performance Materiality (typically 50-75% of overall)
• Clearly Trivial threshold (typically 3-5% of overall)
• Control-specific thresholds

Step 9: Check Accounting Standards

Load references/accounting_standards.md and verify:

• Control design aligns with specified accounting standard
• Inventory valuation method is appropriate
• Revenue recognition rules are followed
• Any standard-specific requirements are addressed

Step 10: Generate Control Design Document

Use assets/control_design_template.md to produce the output containing:

1. Overview: Scope, applicable standard, materiality
2. Control Table: ID, type, objective, procedure, owner, frequency, evidence, remediation
3. Assertion Mapping: Assertion x Control coverage matrix
4. SoD Analysis: Duty pairs, risk, current state, recommendations
5. KPI Definitions: KPI ID, name, formula, baseline, target
6. Roadmap: Short-term (M+1 to M+4) and medium-term (M+6 to M+18) initiatives
7. Open Questions: Items requiring confirmation or management decision

Output Format

The output follows the template in assets/control_design_template.md. Key sections:

• Control IDs follow the pattern: C-[DOMAIN]-[NN] (e.g., C-AP-01, C-INV-01)
• Each control specifies: Type (Preventive/Detective), Assertion coverage, Procedure steps
• SoD pairs are rated High/Medium/Low risk
• KPIs include calculation formula and data source
• Roadmap uses M+N notation (months from project start)
• Open Questions are explicitly managed with options and recommendations

Customization Guidance

By Industry

• F&B: Emphasize inventory existence, waste tracking, portion control
• Retail: Emphasize shrinkage, POS reconciliation, returns processing
• Manufacturing: Emphasize WIP valuation, BOM accuracy, yield tracking
• Services: Emphasize revenue recognition, project costing, time tracking

By Scale

• Small: Accept compensating controls for SoD gaps, simplify procedures
• Medium: Full SoD where possible, standard procedures
• Large: Comprehensive SoD, automated controls, multi-level approval

By System Environment

• Paper+Excel: Focus on detective controls, manual evidence, version management
• Partial ERP: Hybrid controls, interface reconciliation
• Full ERP: Automated preventive controls, system-enforced SoD, audit trails

Resources

Type	File	Purpose	When to Load
Reference	references/process_patterns.md	5 business process patterns (AP, Inventory, COGS, Returns, Price) with industry variations	Step 3: Classify processes
Reference	references/control_templates.md	8 control pattern templates (T-AP-01/02, T-INV-01/02, T-CO-01, T-VAL-01, T-CALC-01/02)	Step 4: Select templates
Reference	references/assertion_mapping.md	C/A/V/CO/E definitions, process-to-assertion mapping, coverage matrix template	Step 5: Verify assertion coverage
Reference	references/sod_patterns.md	5 SoD pairs with risk ratings and compensating controls	Step 6: Perform SoD analysis
Reference	references/kpi_catalog.md	K01-K08 KPI definitions with formulas, baselines, and targets	Step 7: Select KPIs
Reference	references/materiality_framework.md	Overall/Performance/Trivial materiality, threshold guidelines, escalation rules	Step 8: Set materiality
Reference	references/accounting_standards.md	US GAAP/IFRS/J-GAAP differences affecting control design	Step 9: Check standards
Asset	assets/control_design_template.md	Output template with 7 sections + 2 appendices	Step 10: Generate output

Integration with audit-doc-checker

After generating a control design document, run audit-doc-checker to validate quality:

1. Generate control design with this skill
2. Review with audit-doc-checker (target score: 70+)
3. Address findings and regenerate affected sections
4. Iterate until quality threshold is met