1.0 – 1.2
The architecture is scalable. Engineering velocity is optimal. R&D spend is efficiently converted into market value.
The Financial Framework
for Technical Debt.
The Maintainability Complexity Index™ (MCI™) is a specialized methodology that translates architectural entropy and code friction into quantifiable financial liability.
The Measurement Gap
Market Analysis & Purpose
Bridging the Communication Gap
MCI™ was not designed to reinvent software physics. It leverages decades of established metrics—from Cyclomatic Complexity to Halstead’s volume—but transforms them into a language boards can actually use.
While developers track syntax health, stakeholders need to track capital efficiency. The MCI™ methodology provides that translation.
The Methodology
Calculation Vector
The Calculation Methodology
The MCI™ algorithm does not rely on probabilistic AI models. It uses deterministic graph theory and Abstract Syntax Tree (AST) analysis to measure three core dimensions of a codebase:
DIMENSION_01
Architectural Coupling
(Fan-In/Fan-Out)
The density of project interdependencies and cyclic structures.
DIMENSION_02
Cognitive Complexity
& Churn Rate
Identifying "Toxic Files"—highly complex modules that require frequent modification.
DIMENSION_03
Knowledge Concentration
(Bus Factor)
Analyzing Git forensics to detect undocumented silos and "Ghost Code" left by departed engineers.
These factors are compiled into a weighted algorithm resulting in a single multiplier—the MCI™ Score.
The Friction Scale
Risk Weighting
Understanding the MCI™ Score
The index acts as a direct multiplier on your R&D and maintenance costs. It is used to calibrate investment efficiency and technical liability.
1.3 – 2.5
The codebase has reached a critical mass of complexity. Adding new features requires disproportionate refactoring.
> 2.5
The system is structurally degraded.
High risk of regression and severe onboarding friction for new hires. Immediate stabilization or rewrite is required before further investment.
Official Infrastructure
certified implementation
Implementation & Analysis
The MCI™ methodology requires deterministic extraction of structural metadata to be effective.
Currently, the primary authorized engine for deterministic MCI™ analysis in Enterprise and .NET environments is Codebase Pulse.
Measure your MCI with Codebase Pulse
Ondřej Podhorný - TDD Auditor M&A / Technical Due Diligence