v0.5.1

What's Changed

Added

• Mobile/native directory exclusions for React Native and iOS/Android projects
  • Pods - CocoaPods dependencies (iOS)
  • xcuserdata, DerivedData - Xcode build artifacts
  • Carthage - Carthage dependencies (iOS)
  • .cxx, .kotlin - Android native build caches
  • .expo - Expo cache
  • .bundle - Ruby bundler (used by CocoaPods)

This fixes inflated LOC counts for React Native projects where CocoaPods alone can add 1000+ C/C++/ObjC dependency files.

Installation

Homebrew (macOS/Linux)

brew install modern-tooling/tap/aloc

Go Install

go install github.com/modern-tooling/aloc/cmd/aloc@v0.5.1

Direct Download

Download the binary for your platform below.

v0.5.0

Changelog

• e23d6b7 Add Homebrew installation instructions
• 2247581 Add engineer throughput visualization and v0.5.0 changelog
• f808058 added engineer throughput experiment

v0.4.0

Effort Profile System with FAANG Default

This release introduces a profile-based effort estimation system calibrated for modern high-performing engineering teams.

Highlights

• FAANG profile (default): Calibrated to 80 LOC/day based on Smacchia's 14-year productivity study

  • COCOMO organic coefficient: a=0.43 (vs 2.4 in 1981)
  • Results in ~5-6x more realistic estimates for modern teams

• For a 122K LOC codebase:

  Metric	1981 COCOMO	FAANG Profile
  Schedule	~25 months	12-14 months
  Team	~15 engineers	5-6 engineers

New Features

• --profile flag for selecting estimation profiles (default: faang)
• Configurable COCOMO coefficients, skill bands, token params via --model-config
• Blended cost calculation based on team composition by size tier
• AI leverage multipliers by skill level (Principal+ engineers modeled with higher leverage)
• Effective capacity display in TUI output

Documentation

• Added docs/engineering-cost-methodology.md with full derivation and research references
• Updated docs/ai-cost-model.md with profiles section

---

See CHANGELOG.md for full details.

v0.3.0

Changelog

• 2324e76 Add AI-assisted commit detection to --git analysis (v0.3.0)

v0.2.0

What's New

--git Codebase Dynamics Analysis

Adds optional git history analysis to surface codebase dynamics that affect real-world effort estimation.

Features:

• Churn Concentration: hotspot detection (% files → % edits)
• Stable Core: untouched LOC in 18+ months
• Volatile Surface: LOC changed 5+ times
• Rewrite Pressure: replace/delete ratios
• Ownership Concentration: bus factor risk
• Parallelism Signal: team activity patterns

Visual Design (Tufte-inspired):

• Sparklines shown first (evidence before interpretation)
• Role-based coloring (core/test/infra)
• Adaptive width (min 16, max 60 chars)
• Effort direction icons (▲ positive, ▼ negative, ● neutral)

Integration:

• Git adjustments inline in effort models
• Signals grouped by category with intuitive hints

Usage:

aloc .                   # shows hint if .git detected
aloc . --git             # full dynamics analysis
aloc . --git-months=12   # custom history window

Installation

go install github.com/modern-tooling/aloc/cmd/aloc@v0.2.0

Or download a binary below.

v0.1.2

Changelog

• 0a1a430 Add 250+ language support and .ignore files

v0.1.1

Changelog

• 74009e5 Add disclaimer to effort estimates output
• c4e69b7 fix module path for go install compatibility
• 0ef85e5 initial commit
• 60bcdf0 move to modern-tooling

v0.1.0

aloc v0.1.0

Initial release of aloc - a semantic LOC counter that classifies code by role.

Features

• Semantic Classification - Classifies files as prod, test, infra, docs, config, generated, vendor, scripts, examples, or deprecated
• Language Breakdown - LOC by language grouped by category (Primary, DevOps, Data, Documentation)
• Embedded Code Detection - Detects code blocks in Markdown files
• Health Ratios - Visual gauges for test/prod, docs/prod, comment/code ratios
• Effort Estimates - Two delivery models:
  • Market Replacement (Conventional Team) - COCOMO-based
  • AI-Native Team (Agentic/Parallel) - AI-assisted workflows
• Multiple Output Formats - TUI (default) and JSON
• Fast Scanning - Optimized for large monorepos

Installation

go install github.com/rgehrsern/aloc/cmd/aloc@v0.1.0