• There are 43 files with units, with 6,603 lines of code.
• 1 very complex files (McCabe index sum 251+; 1,129 lines of code)
• 0 complex files (McCabe index sum 126-250; 0 lines of code)
• 4 medium complex files (McCabe index sum 51-125; 1,954 lines of code)
• 5 slightly complex files (McCabe index sum 26-50; 1,137 lines of code)
• 33 simple files (McCabe index sum 1-25; 2,383 lines of code)
• 28 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
controller.ts in plugins/bits-and-bolts/src/app	1129	32	261	23	47
__init__.py in python/src/openai_mcp_form_protocol	409	22	124	30	32
build-models.py in plugins/bits-and-bolts/scripts	643	21	121	19	22
scene.ts in plugins/bits-and-bolts/src/app/viewer	535	30	71	13	11
catalog.ts in plugins/bits-and-bolts/src/server	367	21	70	19	13
model_studio.py in plugins/bits-and-bolts/scripts	187	5	46	25	21
three.ts in plugins/bits-and-bolts/src/app/renderers	160	12	38	24	11
register.ts in plugins/bits-and-bolts/src/server	541	12	30	6	17
model.ts in plugins/bits-and-bolts/src/app/shared	129	4	27	21	15
model_gltf.py in plugins/bits-and-bolts/scripts	120	2	26	22	14
settings.py in python/src/openai_mcp_extensions	248	8	25	10	10
check_packages.py in .github/scripts	83	1	17	20	17
_schema.py in python/src/openai_mcp_extensions/form	30	5	14	47	6
model.ts in plugins/bits-and-bolts/src/app/viewer	106	3	13	12	8
local-store.ts in plugins/bits-and-bolts/src/server	49	8	12	24	2
schema.ts in typescript/src/server/forms	81	3	11	14	9
settings.ts in typescript/src/server	258	1	11	4	11
preview.ts in plugins/bits-and-bolts/src/app/shared	96	1	10	10	10
extensions.ts in typescript/src/app	74	5	10	14	2
resources.ts in typescript/src/app	221	5	9	4	2
forms.ts in plugins/bits-and-bolts/src/server	62	1	7	11	7
transport.ts in typescript/src/app	115	5	7	6	2
mentions.py in python/src/openai_mcp_extensions	61	3	6	10	4
prepare-legends.py in plugins/bits-and-bolts/scripts	74	1	6	8	6
step-worker.ts in plugins/bits-and-bolts/src/app/viewer	111	1	4	4	4
model-context.ts in typescript/src/app	52	2	4	8	2
file-picker.ts in typescript/src/server/forms	70	1	4	6	4
_resource_picker.py in python/src/openai_mcp_extensions/form	42	3	3	7	1
resources.py in python/src/openai_mcp_extensions	21	1	3	14	3
stl.ts in plugins/bits-and-bolts/src/app/shared	24	1	3	13	3
inspection.ts in plugins/bits-and-bolts/src/app/viewer	71	2	3	4	2
elicitation.ts in typescript/src/server/forms	61	1	3	5	3
mentions.ts in typescript/src/server	75	1	3	4	3
extensions.py in python/src/openai_mcp_extensions	25	2	2	8	1
deep-link.ts in typescript/src/app	36	1	2	6	2
pyi __init__.pyi in python/typings/rfc3986_validator	2	1	1	50	1
vite.config.ts in plugins/bits-and-bolts	17	1	1	6	1
lighting.ts in plugins/bits-and-bolts/src/app/shared	75	1	1	1	1
index.ts in plugins/bits-and-bolts/src/server	30	1	1	3	1
message.ts in typescript/src/app	41	1	1	2	1
files.ts in typescript/src/app	36	1	1	3	1
resources.ts in typescript/src/server	19	1	1	5	1
extensions.ts in typescript/src/server	17	1	1	6	1

• 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.