• There are 63 files with units, with 13,007 lines of code.
• 2 very complex files (McCabe index sum 251+; 1,916 lines of code)
• 3 complex files (McCabe index sum 126-250; 2,154 lines of code)
• 15 medium complex files (McCabe index sum 51-125; 4,473 lines of code)
• 19 slightly complex files (McCabe index sum 26-50; 2,425 lines of code)
• 24 simple files (McCabe index sum 1-25; 2,039 lines of code)
• 128 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
prefix_diff.py in skills/claude-api/shared/preserved-thinking-migration	1173	43	684	58	76
drop_block_probe.py in skills/claude-api/shared/preserved-thinking-migration	743	23	428	58	95
base.py in skills/xlsx/scripts/office/validators	718	22	217	30	27
base.py in skills/pptx/scripts/office/validators	718	22	217	30	27
base.py in skills/docx/scripts/office/validators	718	22	217	30	27
docx.py in skills/xlsx/scripts/office/validators	380	12	123	32	27
docx.py in skills/pptx/scripts/office/validators	380	12	123	32	27
docx.py in skills/docx/scripts/office/validators	380	12	123	32	27
pptx.py in skills/xlsx/scripts/office/validators	351	13	116	33	18
pptx.py in skills/pptx/scripts/office/validators	351	13	116	33	18
pptx.py in skills/docx/scripts/office/validators	351	13	116	33	18
merge_runs.py in skills/docx/scripts	203	24	93	46	11
generate_review.py in skills/skill-creator/eval-viewer	365	13	89	24	21
recalc.py in skills/xlsx/scripts	240	7	74	31	34
redlining.py in skills/xlsx/scripts/office/validators	235	12	63	27	14
redlining.py in skills/pptx/scripts/office/validators	235	12	63	27	14
redlining.py in skills/docx/scripts/office/validators	235	12	63	27	14
add_slide.py in skills/pptx/scripts	275	16	60	22	12
clean.py in skills/pptx/scripts	222	10	59	27	17
aggregate_benchmark.py in skills/skill-creator/scripts	270	6	56	21	23
comment.py in skills/docx/scripts	271	12	50	18	9
pptx_chart.py in skills/xlsx/scripts/office/helpers	130	8	46	35	11
pptx_chart.py in skills/pptx/scripts/office/helpers	130	8	46	35	11
pptx_chart.py in skills/docx/scripts/office/helpers	130	8	46	35	11
easing.py in skills/slack-gif-creator/core	116	20	34	29	4
validate.py in skills/xlsx/scripts/office	135	3	33	24	28
validate.py in skills/pptx/scripts/office	135	3	33	24	28
validate.py in skills/docx/scripts/office	135	3	33	24	28
extract_form_field_info.py in skills/pdf/scripts	100	4	31	31	18
run_loop.py in skills/skill-creator/scripts	256	4	31	12	14
quick_validate.py in skills/skill-creator/scripts	68	1	30	44	30
thumbnail.py in skills/pptx/scripts	234	8	30	13	9
fill_fillable_fields.py in skills/pdf/scripts	78	3	29	37	12
__init__.py in skills/xlsx/scripts/office/helpers	89	6	27	30	11
pptx_theme.py in skills/xlsx/scripts/office/helpers	80	10	27	34	5
__init__.py in skills/pptx/scripts/office/helpers	89	6	27	30	11
pptx_theme.py in skills/pptx/scripts/office/helpers	80	10	27	34	5
__init__.py in skills/docx/scripts/office/helpers	89	6	27	30	11
pptx_theme.py in skills/docx/scripts/office/helpers	80	10	27	34	5
package_skill.py in skills/skill-creator/scripts	81	3	23	28	10
generator_template.js in skills/algorithmic-art/templates	63	17	21	33	3
generate_report.py in skills/skill-creator/scripts	120	4	18	15	8
evaluation.py in skills/mcp-builder/scripts	231	4	17	7	7
check_bounding_boxes.py in skills/pdf/scripts	54	1	16	30	16
with_server.py in skills/webapp-testing/scripts	64	2	16	25	13
extract_form_structure.py in skills/pdf/scripts	84	2	15	18	13
gif_builder.py in skills/slack-gif-creator/core	148	7	14	9	5
improve_description.py in skills/skill-creator/scripts	159	3	13	8	6
run_eval.py in skills/skill-creator/scripts	241	4	12	5	7
connections.py in skills/mcp-builder/scripts	97	9	12	12	2

• 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.