• There are 632 files with 49,415 lines of code.
• 2 very long files (2,570 lines of code)
• 5 long files (3,653 lines of code)
• 45 medium size files (12,923 lines of code)
• 93 small files (12,981 lines of code)
• 487 very small files (17,288 lines of code)

File	# lines	≈ tokens to read	# changes (1y)	≈ lines edited per change	lines read per line changed
Workspaces.tsx in frontend/src/js/components/workspace	1364	~7k–20k	81	~50	~30
Neo4jManifest.scala in backend/app/services/manifest	1206	~7k–20k	45	~30	~50
ElasticsearchResources.scala in backend/app/services/index	940	~5k–15k	37	~30	~30
Neo4jAnnotations.scala in backend/app/services/annotations	708	~3k–10k	32	~20	~30
PageViewerOrFallback.tsx in frontend/src/js/components	343	~2k–5k	56	~30	~10
Workspaces.scala in backend/app/controllers/api	394	~2k–7k	29	~15	~20
AppComponents.scala in backend/app	253	~1.5k–5k	39	~7	~30
CaptureFromUrl.tsx in frontend/src/js/components/Uploads	355	~2k–5k	25	~70	~5
WorkspaceSummary.tsx in frontend/src/js/components/workspace	235	~1.5k–5k	34	~30	~7
ExternalTranscriptionWorker.scala in backend/app/extraction	257	~1.5k–5k	28	~30	~7
Viewer.tsx in frontend/src/js/components/viewer	362	~2k–7k	19	~30	~10
GiantActions.ts in frontend/src/js/types/redux	305	~2k–5k	22	~30	~10
HitReaders.scala in backend/app/services/index	324	~2k–5k	20	~10	~30
UploadFiles.tsx in frontend/src/js/components/Uploads	458	~3k–7k	14	~30	~15
WorkerControl.scala in backend/app/utils	217	~1.5k–5k	29	~15	~15
_document.scss in frontend/src/stylesheets/components	319	~2k–5k	18	~20	~15
index.tsx in frontend/src/js/components/UtilComponents/TreeBrowser	340	~2k–5k	16	~30	~10
Neo4jRemoteIngestStore.scala in backend/app/services/ingestion	214	~1k–3k	24	~50	~5
RemoteIngestWorker.scala in backend/app/services/ingestion	181	~1k–3k	28	~30	~7
workspaceUtils.fixtures.ts in frontend/src/js/util	955	~5k–15k	5	~500	~2

Tokens are lines × 7 to 14 (analysis.fileReadsForChanges). Lines edited per change are the file's lines added and deleted divided by its commits over the whole history. Agents read about 2,000 lines at a time: when a 17,000-line file was split into modules, the tokens an agent read for the same change fell by 83% (The Economic Benefit of Refactoring, 2026).

There are 158 files with lines longer than 120 characters. In total, there are 730 long lines.

File	# lines	# units	# long lines
Neo4jManifest.scala in backend/app/services/manifest	1206	44	47
Neo4jAnnotations.scala in backend/app/services/annotations	708	28	40
AppComponents.scala in backend/app	253	-	38
ExternalTranscriptionWorker.scala in backend/app/extraction	257	13	23
WorkerControl.scala in backend/app/utils	217	17	21
ElasticsearchResources.scala in backend/app/services/index	940	32	21
MimeDetails.scala in backend/app/utils	160	2	18
Workspaces.scala in backend/app/controllers/api	394	28	18
IngestionServices.scala in backend/app/services/ingestion	178	11	17
Ocr.scala in backend/app/utils	244	7	16
Options.scala in cli/src/main/scala/com/gu/pfi/cli	148	1	14
RemoteIngestWorker.scala in backend/app/services/ingestion	181	5	13
IngestionContextBuilder.scala in backend/app/ingestion	55	5	10
EmlParser.scala in backend/app/extraction/email/eml	126	8	10
PostgresClient.scala in backend/app/services/observability	239	6	10
Collections.scala in backend/app/controllers/api	241	15	9
Search.scala in backend/app/controllers/api	159	11	9
BaseOcrExtractor.scala in backend/app/extraction/ocr	81	3	9
Neo4jUserManagement.scala in backend/app/services/users	397	24	9
IngestStorePolling.scala in backend/app/ingestion/phase2	165	8	8
PanDomainUserProvider.scala in backend/app/utils/auth/providers	88	4	8
RemoteIngest.scala in backend/app/model/ingestion	144	5	8
PagesController.scala in backend/app/controllers/api	141	9	8
PreviewService.scala in backend/app/services/previewing	137	13	8
AwsDiscovery.scala in backend/app/utils	226	9	7
OcrMyPdfExtractor.scala in backend/app/extraction/ocr	146	7	7
Models.scala in backend/app/services/observability	184	9	7
S3Client.scala in backend/app/utils/aws	83	8	6
TranslationData.scala in backend/app/model/index	45	3	6
OlmEmailExtractor.scala in backend/app/extraction/email/olm	143	6	6
HighlightFields.scala in backend/app/services/index	112	9	6
HitReaders.scala in backend/app/services/index	324	29	6
Attempt.scala in common/src/main/scala/utils/attempt	135	20	6
Neo4jHelper.scala in backend/app/utils	255	23	5
AuthActionBuilder.scala in backend/app/utils/auth	88	3	5
Totp.scala in backend/app/utils/auth/totp	72	7	5
Email.scala in backend/app/model	178	8	5
GetPages.scala in backend/app/commands	72	4	5
Resource.scala in backend/app/controllers/api	77	4	5
Blobs.scala in backend/app/controllers/api	122	7	5
ExcelTableExtractor.scala in backend/app/extraction/tables	129	5	5
TranscriptionExtractor.scala in backend/app/extraction	68	1	5
DocumentBodyExtractor.scala in backend/app/extraction	58	2	5
Worker.scala in backend/app/extraction	153	7	5
PstEmailExtractor.scala in backend/app/extraction/email/pst	98	4	5
Neo4jRemoteIngestStore.scala in backend/app/services/ingestion	214	9	5
Annotations.scala in backend/app/services/annotations	47	2	5
ElasticsearchPages.scala in backend/app/services/index	227	10	5
Binders.scala in backend/app/utils	28	4	4
DatabaseUserProvider.scala in backend/app/utils/auth/providers	101	9	4

• File size measurements show the distribution of size of files.
• Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
• It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.