• There are 174 files with units, with 20,716 lines of code.
• 0 very complex files (McCabe index sum 251+; 0 lines of code)
• 1 complex files (McCabe index sum 126-250; 524 lines of code)
• 10 medium complex files (McCabe index sum 51-125; 3,537 lines of code)
• 27 slightly complex files (McCabe index sum 26-50; 6,468 lines of code)
• 136 simple files (McCabe index sum 1-25; 10,187 lines of code)
• 148 main files have no units (e.g. languages without unit analysis, or files without functions) and are not classified.

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	# units	McCabe index (sum)	per 100 lines	most complex unit
reducer.ts in managed-agents/assistant-ui/lib/managed-agents	524	24	148	28	44
browser_dom_script.js in browser-use-demo/browser_use_demo/browser_tool_utils	346	11	123	36	40
streamlit.py in browser-use-demo/browser_use_demo	465	25	92	20	21
session-controller.ts in managed-agents/assistant-ui/lib/managed-agents	343	19	85	25	16
managed-agents.ts in managed-agents/chat-sdk/src	356	13	76	21	37
managed-agents.ts in managed-agents/mcp-server-typescript/src	207	16	70	34	14
loop.py in computer-use-best-practices/computer_use	410	19	69	17	9
tool-rail.tsx in managed-agents/roadtrip-planner/src/components	247	11	67	27	13
message_renderer.py in browser-use-demo/browser_use_demo	132	14	66	50	15
diff-viewer.tsx in managed-agents/assistant-ui/components/assistant-ui	529	12	57	11	11
streamlit.py in computer-use-demo/computer_use_demo	502	15	54	11	18
sidebar.tsx in managed-agents/assistant-ui/components/ui	631	23	49	8	10
security.py in autonomous-coding	184	6	48	26	12
oauth.ts in managed-agents/linear/src	209	16	46	22	7
webhook.ts in managed-agents/self-hosted-sandboxes/vercel/api	348	14	44	13	12
build_manifest.py in managed-agents/knowledge-wiki	119	1	42	35	42
transcript.ts in managed-agents/roadtrip-planner/src/lib	229	7	42	18	28
computer.py in computer-use-best-practices/computer_use/tools	340	14	42	12	8
constants.py in computer-use-best-practices	193	6	40	21	21
managed-agents-webhook.ts in managed-agents/linear/src	167	7	37	22	14
managed-agents-webhook.ts in managed-agents/slack/src	155	6	36	23	13
browser.py in computer-use-best-practices/computer_use/tools	215	6	36	17	22
route.ts in financial-data-analyst/app/api/finance	400	3	35	9	28
editor.py in computer-use-best-practices/computer_use/tools	136	8	35	26	11
browser_form_input_script.js in browser-use-demo/browser_use_demo/browser_tool_utils	184	1	35	19	35
index.ts in managed-agents/self-hosted-sandboxes/cloudflare-containers/src	187	5	33	18	14
use-managed-agent-session.ts in managed-agents/roadtrip-planner/src/lib	169	3	33	20	31
sessions.ts in managed-agents/chat-sdk/src	129	9	32	25	13
index.ts in managed-agents/self-hosted-sandboxes/cloudflare-worker/src	167	5	31	19	12
ChartRenderer.tsx in financial-data-analyst/components	394	5	29	7	8
computer.py in computer-use-demo/computer_use_demo/tools	480	10	29	6	9
app.tsx in managed-agents/chat-sdk/web	313	5	29	9	15
render.py in computer-use-best-practices/computer_use	67	15	29	43	5
edit.py in computer-use-demo/computer_use_demo/tools	222	8	28	13	11
image.tsx in managed-agents/assistant-ui/components/assistant-ui	412	8	28	7	10
fetch_data_room.py in managed-agents/knowledge-wiki	98	8	28	29	7
base.py in computer-use-best-practices/computer_use/tools	80	9	28	35	8
oauth_setup.py in managed-agents/sentry	240	9	27	11	10
tool-fallback.tsx in managed-agents/assistant-ui/components/assistant-ui	529	8	25	5	7
file.tsx in managed-agents/assistant-ui/components/assistant-ui	214	8	23	11	7
page.tsx in managed-agents/roadtrip-planner/src/app	372	5	23	6	8
agent.ts in managed-agents/linear/src	129	8	22	17	7
managed_agents.py in managed-agents/sentry	60	6	22	37	7
preflight.py in computer-use-best-practices/computer_use	106	7	21	20	12
reasoning.tsx in managed-agents/assistant-ui/components/assistant-ui	324	5	20	6	9
tools.ts in managed-agents/self-hosted-sandboxes/cloudflare-worker/src	88	3	20	23	16
route.ts in managed-agents/roadtrip-planner/src/app/api/session	68	3	20	29	15
formatters.py in computer-use-best-practices/computer_use	57	5	20	35	10
scope.ts in managed-agents/mcp-server-typescript/src	52	6	19	37	6
batch.py in computer-use-best-practices/computer_use/tools	70	8	18	26	8

• 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.