anthropics/claude-agent-sdk-demos
File Complexity*
The distribution of files by complexity: the sum of the McCabe indexes of their units.
File Complexity Overall
  • There are 99 files with units, with 12,614 lines of code.
    • 0 very complex files (McCabe index sum 251+; 0 lines of code)
    • 2 complex files (McCabe index sum 126-250; 1,249 lines of code)
    • 5 medium complex files (McCabe index sum 51-125; 1,959 lines of code)
    • 12 slightly complex files (McCabe index sum 26-50; 1,894 lines of code)
    • 80 simple files (McCabe index sum 1-25; 7,512 lines of code)
  • 49 main files have no units (e.g. languages without unit analysis, or files without functions) and are not classified.
system0% | 9% | 15% | 15% | 59%
Legend:
251+
126-250
51-125
26-50
1-25


explore: grouped by folders | grouped by complexity
File Complexity per Extension
251+
126-250
51-125
26-50
1-25
ts0% | 13% | 16% | 10% | 59%
tsx0% | 0% | 16% | 17% | 65%
py0% | 0% | 0% | 57% | 42%
js0% | 0% | 0% | 0% | 100%
File Complexity per Logical Decomposition
primary
251+
126-250
51-125
26-50
1-25
email-agent0% | 14% | 22% | 9% | 52%
excel-demo0% | 0% | 0% | 31% | 68%
research-agent0% | 0% | 0% | 50% | 50%
hello-world-v20% | 0% | 0% | 100% | 0%
simple-chatapp0% | 0% | 0% | 0% | 100%
ask-user-question-previews0% | 0% | 0% | 0% | 100%
resume-generator0% | 0% | 0% | 0% | 100%
hello-world0% | 0% | 0% | 0% | 100%
Most Complex Files (Top 50)

The McCabe index of a file grows with its size: per 100 lines tells a large but plain file from a dense one, and most complex unit whether the complexity sits in one unit or is spread over many.

File# lines# unitsMcCabe index
(sum)		per 100
lines		most complex
unit
imap-manager.ts
in email-agent/database
 559 25 132 24 21
database-manager.ts
in email-agent/database
 690 30 130 19 36
websocket-handler.ts
in email-agent/ccsdk
 519 35 93 18 21
email-sync.ts
in email-agent/database
 303 6 77 25 41
listeners-manager.ts
in email-agent/ccsdk
 395 18 75 19 11
AssistantMessage.tsx
in email-agent/client/components/message
 469 4 67 14 45
server.ts
in email-agent/server
 273 4 51 19 48
emails.ts
in email-agent/server/endpoints
 271 4 45 17 21
recalc.py
in excel-demo/agent/.claude/skills/xlsx
 122 3 44 36 36
ui-state-manager.ts
in email-agent/ccsdk
 168 13 38 23 6
extract_form_field_info.py
in research-agent/.claude/skills/pdf/scripts
 100 4 37 37 23
session.ts
in email-agent/ccsdk
 170 10 32 19 14
fill_fillable_fields.py
in research-agent/.claude/skills/pdf/scripts
 78 3 31 40 14
package-tracker.ts
in email-agent/agent/.claude/skills/listener-creator/templates
 68 4 30 44 15
actions-manager.ts
in email-agent/ccsdk
 158 10 29 18 6
v2-examples.ts
in hello-world-v2
 93 10 28 30 6
MessageInput.tsx
in excel-demo/src/renderer/components
 301 2 27 9 24
Message.tsx
in excel-demo/src/renderer/components
 197 6 26 13 20
subagent_tracker.py
in research-agent/research_agent/utils
 168 7 26 15 10
session.ts
in simple-chatapp/server
 119 10 24 20 8
ui-states.ts
in email-agent/server/endpoints
 245 6 23 9 5
component-manager.ts
in email-agent/ccsdk
 127 5 22 17 7
EmailViewer.tsx
in email-agent/client/components
 148 1 20 14 20
ChatInterface.tsx
in excel-demo/src/renderer/components
 174 1 18 10 18
server.ts
in ask-user-question-previews
 151 4 18 12 9
check_bounding_boxes.py
in research-agent/.claude/skills/pdf/scripts
 54 1 17 31 17
finance-email-tracker.ts
in email-agent/agent/custom_scripts/listeners
 142 1 17 12 17
ai-client.ts
in email-agent/ccsdk
 100 4 17 17 10
resume-generator.ts
in resume-generator
 72 2 16 22 13
hello-world.ts
in hello-world
 61 2 16 26 10
App.tsx
in simple-chatapp/client
 165 1 16 10 16
email-search.ts
in email-agent/database
 233 3 16 7 10
ActiveListenersPanel.tsx
in email-agent/client/components
 186 2 16 9 8
todoDetection.ts
in excel-demo/src/renderer/components/utils
 54 3 15 28 5
ChatWindow.tsx
in simple-chatapp/client/components
 169 2 14 8 13
email-api.ts
in email-agent/agent
 120 4 14 12 5
todo-extractor.ts
in email-agent/agent/custom_scripts/listeners
 113 1 14 12 14
useUIState.ts
in email-agent/client/hooks
 113 1 14 12 14
toolMetadata.ts
in excel-demo/src/renderer/components/utils
 188 3 13 7 9
fill_pdf_form_with_annotations.py
in research-agent/.claude/skills/pdf/scripts
 66 2 13 20 11
sync.ts
in email-agent/server/endpoints
 124 2 13 10 7
TodoListDisplay.tsx
in excel-demo/src/renderer/components
 109 1 12 11 12
menu.ts
in excel-demo/src/main
 276 10 12 4 3
log-writer.ts
in email-agent/ccsdk
 99 5 12 12 4
TaskBoardView.tsx
in email-agent/client/components/views
 89 1 12 13 12
FinancialDashboardView.tsx
in email-agent/client/components/views
 87 1 12 14 12
useWebSocket.ts
in email-agent/client/hooks
 110 1 12 11 12
ToolUseDisplay.tsx
in excel-demo/src/renderer/components
 79 1 11 14 11
listeners.ts
in email-agent/server/endpoints
 88 1 11 13 11
useAgentSocket.ts
in ask-user-question-previews/client
 60 4 11 18 6
About This Analysis
  • File complexity is the sum of the McCabe indexes (conditional complexity) of the units (methods, functions...) in a file.
  • Files are classified in five categories based on that sum: 1-25 (simple files), 26-50 (slightly complex files), 51-125 (medium complex files), 126-250 (complex files), 251+ (very complex files). The default bands are five times the unit complexity bands, as a file is a group of units.
  • Only main code files with units are classified. Files without units (languages without unit analysis, or files without functions) have no complexity to measure and are left out rather than counted as simple.
  • A very complex file holds many decisions, which often means it has too many responsibilities: a candidate to split, and a place where changes need more testing.
Learn more...