anthropics / cwc-workshops Duplication

anthropics / cwc-workshops

Duplication

Places in code with 6 or more lines that are exactly the same.

Intro

For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.

Learn more...

To learn more about duplications and techniques for eliminating duplication, Sokrates recommends the following resources:

Avoid Repetition, MartinFlower.com (IEEE Software article)
Refactoring duplicated code, sourcemaking.com
Beck Design Rules, MartinFowler.com
DRY (Don't Repeat Yourself) Principle, Wikipedia
The Cut-and-Paste Programming Software Development Anti-Pattern, sourcemaking.com
Code Smells / Duplicated Code, Jeff Atwood, codinghorror.com:

"Duplicated code is the bane of software development. Stamp out duplication whenever possible. You should always be on the lookout for more subtle cases of near-duplication, too. Don't Repeat Yourself!"

Reducing Coupling, MartinFlower.com (IEEE Software article):

"There are several ways to describe coupling, but it boils down to this: If changing one module in a program requires changing another module, then coupling exists. ... Duplication always implies coupling, because changing one piece of duplicate code implies changing the other."

Duplication Overall

25% duplication:

14,795 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
3,767 duplicated lines

60 duplicates

dependency graphs: 2D graph | 2D graph (with duplicates)... | 3D graph | 3D graph (with duplicates)...

Duplication per Extension

Duplication per Component (primary)

Longest Duplicates

The list of 50 longest duplicates.

See data for all 60 duplicates...

Size	#	Folders	Files	Lines	Code
402	x 2	production-ready-agent/solution/components production-ready-agent/starter/components	ChatPanel.tsx ChatPanel.tsx	1:465 (100%) 1:465 (100%)	view
189	x 2	production-ready-agent/solution/components production-ready-agent/starter/components	SessionRail.tsx SessionRail.tsx	1:223 (100%) 1:223 (100%)	view
115	x 2	production-ready-agent/solution/components production-ready-agent/starter/components	NewEvaluationModal.tsx NewEvaluationModal.tsx	1:133 (100%) 1:133 (100%)	view
105	x 2	production-ready-agent/solution/components/ai production-ready-agent/starter/components/ai	message.tsx message.tsx	1:123 (100%) 1:123 (100%)	view
92	x 2	production-ready-agent/solution/components production-ready-agent/starter/components	ui.tsx ui.tsx	5:112 (100%) 5:112 (100%)	view
88	x 2	production-ready-agent/solution/components/ai production-ready-agent/starter/components/ai	prompt-input.tsx prompt-input.tsx	1:103 (100%) 1:103 (100%)	view
85	x 2	production-ready-agent/solution/app production-ready-agent/starter/app	globals.css globals.css	1:97 (100%) 1:97 (100%)	view
75	x 2	production-ready-agent/solution/components production-ready-agent/starter/components	PipelineRail.tsx PipelineRail.tsx	1:94 (100%) 1:94 (100%)	view
73	x 2	production-ready-agent/solution/lib production-ready-agent/starter/lib	chat.ts chat.ts	3:98 (100%) 3:98 (100%)	view
69	x 2	production-ready-agent/solution/components production-ready-agent/starter/components	DealDesk.tsx DealDesk.tsx	1:89 (100%) 1:89 (100%)	view
64	x 2	production-ready-agent/solution/components/ai production-ready-agent/starter/components/ai	conversation.tsx conversation.tsx	1:81 (100%) 1:81 (100%)	view
45	x 2	production-ready-agent/solution production-ready-agent/starter	tailwind.config.ts tailwind.config.ts	4:48 (100%) 4:48 (100%)	view
38	x 2	production-ready-agent/solution/components/ai production-ready-agent/starter/components/ai	response.tsx response.tsx	1:45 (100%) 1:45 (100%)	view
31	x 2	production-ready-agent/solution/lib production-ready-agent/starter/lib	types.ts types.ts	2:40 (100%) 2:40 (100%)	view
29	x 2	production-ready-agent/solution/components/ui production-ready-agent/starter/components/ui	badge.tsx badge.tsx	4:36 (100%) 4:36 (100%)	view
27	x 2	production-ready-agent/solution/lib production-ready-agent/starter/lib	sse.ts sse.ts	9:47 (100%) 9:47 (100%)	view
27	x 2	production-ready-agent/solution/components/ui production-ready-agent/starter/components/ui	dialog.tsx dialog.tsx	1:33 (100%) 1:33 (100%)	view
27	x 2	production-ready-agent/solution/lib production-ready-agent/starter/lib	anthropic.ts anthropic.ts	10:42 (100%) 10:42 (100%)	view
25	x 2	agent-decomposition/agents/before agent-decomposition/agents	tools.py sandbox_tools.py	125:153 (16%) 188:216 (17%)	view
25	x 2	production-ready-agent/solution/components/ui production-ready-agent/starter/components/ui	button.tsx button.tsx	5:32 (100%) 5:32 (100%)	view
23	x 2	production-ready-agent/solution/components/ui production-ready-agent/starter/components/ui	tooltip.tsx tooltip.tsx	1:28 (100%) 1:28 (100%)	view
22	x 2	production-ready-agent/solution/components production-ready-agent/starter/components	TopBar.tsx TopBar.tsx	1:25 (100%) 1:25 (100%)	view
18	x 2	production-ready-agent/solution/components/ui production-ready-agent/starter/components/ui	scroll-area.tsx scroll-area.tsx	1:22 (100%) 1:22 (100%)	view
15	x 2	production-ready-agent/s.../[id]/thread/[threadId] production-ready-agent/s.../[id]/thread/[threadId]	route.ts route.ts	4:20 (100%) 4:20 (100%)	view
14	x 2	production-ready-agent/solution/app/session/[id] production-ready-agent/starter/app/session/[id]	layout.tsx layout.tsx	5:18 (100%) 5:18 (100%)	view
12	x 2	eval-driven-agent-development/src eval-driven-agent-development/src	batch.ts create-slides.ts	65:77 (17%) 107:119 (10%)	view
12	x 2	agent-decomposition/agents/before agent-decomposition/agents	tools.py sandbox_tools.py	47:67 (7%) 83:98 (8%)	view
11	x 2	production-ready-agent/solution/app production-ready-agent/starter/app	layout.tsx layout.tsx	5:16 (100%) 5:16 (100%)	view
9	x 2	agent-decomposition/agents/before agent-decomposition/agents	tools.py sandbox_tools.py	105:117 (5%) 159:171 (6%)	view
9	x 2	eval-driven-agent-development/solutions eval-driven-agent-development/solutions	01-polish.agent.yaml 02-diagram.agent.yaml	4:15 (64%) 4:15 (64%)	view
9	x 2	agent-decomposition/agents agent-decomposition/agents	cma.py cma.py	224:232 (1%) 288:296 (1%)	view
8	x 2	production-ready-agent/solution/components production-ready-agent/solution/components	ChatPanel.tsx SessionRail.tsx	89:96 (1%) 98:105 (4%)	view
8	x 2	production-ready-agent/starter/components production-ready-agent/starter/components	ChatPanel.tsx SessionRail.tsx	89:96 (1%) 98:105 (4%)	view
8	x 2	production-ready-agent/solution/components production-ready-agent/starter/components	SessionRail.tsx ChatPanel.tsx	98:105 (4%) 89:96 (1%)	view
8	x 2	agent-decomposition/agents/before agent-decomposition/agents	tools.py sandbox_tools.py	81:88 (5%) 127:134 (5%)	view
8	x 2	production-ready-agent/s...pi/session/[id]/threads production-ready-agent/s...pi/session/[id]/threads	route.ts route.ts	3:16 (100%) 3:16 (100%)	view
8	x 2	agent-battle/harness agent-battle/harness	tools.py tools.py	41:48 (4%) 66:73 (4%)	view
8	x 2	agent-decomposition/agents/before agent-decomposition/agents	tools.py sandbox_tools.py	91:101 (5%) 136:145 (5%)	view
8	x 2	production-ready-agent/solution/components production-ready-agent/starter/components	ChatPanel.tsx SessionRail.tsx	89:96 (1%) 98:105 (4%)	view
7	x 2	eval-driven-agent-development/solutions eval-driven-agent-development/solutions	02-diagram.agent.yaml 03-qa-loop.agent.yaml	9:16 (50%) 11:18 (25%)	view
7	x 2	agent-battle/harness agent-battle/harness	tools.py tools.py	67:73 (4%) 122:128 (4%)	view
7	x 2	agent-battle/harness agent-battle/harness	tools.py tools.py	42:48 (4%) 122:128 (4%)	view
7	x 2	production-ready-agent/s...on/app/api/confirm/[id] production-ready-agent/s...er/app/api/confirm/[id]	route.ts route.ts	3:9 (41%) 3:9 (87%)	view
7	x 2	agent-battle/event/lib agent-battle/event/lib	mjs board.mjs board.mjs	201:207 (2%) 233:239 (2%)	view
6	x 2	agent-battle/harness agent-battle/harness	tools.py tools.py	68:73 (3%) 102:107 (3%)	view
6	x 2	agent-battle/harness agent-battle/harness	tools.py tools.py	43:48 (3%) 102:107 (3%)	view
6	x 2	agent-battle/harness agent-battle/harness	tools.py tools.py	123:128 (3%) 161:166 (3%)	view
6	x 2	agent-battle/harness agent-battle/harness	tools.py tools.py	30:35 (3%) 55:60 (3%)	view
6	x 2	how-we-claude-code/phase-3-verify/src how-we-claude-code/phase-3-verify/src	styles.css styles.css	351:356 (1%) 448:453 (1%)	view
6	x 2	ship-your-first-managed-agent ship-your-first-managed-agent	e2e.py provided.py	32:38 (7%) 33:39 (3%)	view

Most Frequent Duplicates

The list of 7 most frequently found duplicates.

Size	#	Folders	Files	Lines	Code
6	x 5	agent-battle/harness agent-battle/harness agent-battle/harness agent-battle/harness agent-battle/harness	tools.py tools.py tools.py tools.py tools.py	43:48 (3%) 68:73 (3%) 102:107 (3%) 123:128 (3%) 161:166 (3%)	view
6	x 4	production-ready-agent/starter/components production-ready-agent/solution/components production-ready-agent/solution/components production-ready-agent/starter/components	ChatPanel.tsx SessionRail.tsx ChatPanel.tsx SessionRail.tsx	89:94 (1%) 98:103 (3%) 89:94 (1%) 98:103 (3%)	view
6	x 4	production-ready-agent/starter/components production-ready-agent/solution/components production-ready-agent/solution/components production-ready-agent/starter/components	ChatPanel.tsx SessionRail.tsx ChatPanel.tsx SessionRail.tsx	91:96 (1%) 100:105 (3%) 91:96 (1%) 100:105 (3%)	view
6	x 4	production-ready-agent/starter/components production-ready-agent/solution/components production-ready-agent/solution/components production-ready-agent/starter/components	ChatPanel.tsx SessionRail.tsx ChatPanel.tsx SessionRail.tsx	90:95 (1%) 99:104 (3%) 90:95 (1%) 99:104 (3%)	view
6	x 3	eval-driven-agent-development/solutions eval-driven-agent-development/solutions eval-driven-agent-development/solutions	01-polish.agent.yaml 02-diagram.agent.yaml 03-qa-loop.agent.yaml	9:15 (42%) 9:15 (42%) 11:17 (21%)	view
6	x 3	agent-battle/harness agent-battle/harness agent-battle/harness	tools.py tools.py tools.py	42:47 (3%) 67:72 (3%) 122:127 (3%)	view
6	x 3	how-we-claude-code/phase-3-verify/src/verify/core how-we-claude-code/phase-3-verify/src/verify/core how-we-claude-code/phase-3-verify/src/verify/core	runner.ts runner.ts runner.ts	53:58 (4%) 93:98 (4%) 134:139 (4%)	view

Duplicated Units

The list of top 26 duplicated units.

See data for all 26 unit duplicates...

Size	#	Folders	Files	Lines	Code
162	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	ChatPanel.tsx ChatPanel.tsx	35:249 35:249	view
55	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	DealDesk.tsx DealDesk.tsx	11:90 11:90	view
63	x 2	production-ready-agent/starter/lib production-ready-agent/solution/lib	chat.ts chat.ts	28:99 28:99	view
47	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	ChatPanel.tsx ChatPanel.tsx	352:414 352:414	view
53	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	NewEvaluationModal.tsx NewEvaluationModal.tsx	19:91 19:91	view
34	x 2	production-ready-agent/starter/components/ai production-ready-agent/solution/components/ai	prompt-input.tsx prompt-input.tsx	49:85 49:85	view
30	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	ChatPanel.tsx ChatPanel.tsx	256:290 256:290	view
24	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	ui.tsx ui.tsx	5:37 5:37	view
28	x 2	production-ready-agent/starter/components/ai production-ready-agent/solution/components/ai	prompt-input.tsx prompt-input.tsx	13:47 13:47	view
25	x 2	production-ready-agent/starter/components/ai production-ready-agent/solution/components/ai	conversation.tsx conversation.tsx	12:48 12:48	view
24	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	ChatPanel.tsx ChatPanel.tsx	425:456 425:456	view
24	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	ChatPanel.tsx ChatPanel.tsx	321:350 321:350	view
25	x 2	production-ready-agent/starter/components/ai production-ready-agent/solution/components/ai	message.tsx message.tsx	38:66 38:66	view
22	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	ChatPanel.tsx ChatPanel.tsx	292:319 292:319	view
21	x 2	production-ready-agent/starter/components/ai production-ready-agent/solution/components/ai	message.tsx message.tsx	13:36 13:36	view
20	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	PipelineRail.tsx PipelineRail.tsx	14:37 14:37	view
10	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	TopBar.tsx TopBar.tsx	5:26 5:26	view
16	x 2	production-ready-agent/starter/components/ui production-ready-agent/solution/components/ui	tooltip.tsx tooltip.tsx	10:29 10:29	view
17	x 2	production-ready-agent/starter/lib production-ready-agent/solution/lib	sse.ts sse.ts	19:43 19:43	view
13	x 2	production-ready-agent/starter/components/ai production-ready-agent/solution/components/ai	prompt-input.tsx prompt-input.tsx	87:104 87:104	view
15	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	NewEvaluationModal.tsx NewEvaluationModal.tsx	35:53 35:53	view
15	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	SessionRail.tsx SessionRail.tsx	22:38 22:38	view
10	x 2	production-ready-agent/starter/app/session/[id] production-ready-agent/solution/app/session/[id]	layout.tsx layout.tsx	5:19 5:19	view
26	x 2	production-ready-agent/starter/lib production-ready-agent/solution/lib	sse.ts sse.ts	15:48 15:48	view
6	x 2	production-ready-agent/starter/components production-ready-agent/solution/components	SessionRail.tsx SessionRail.tsx	10:17 10:17	view
7	x 2	production-ready-agent/s...pi/session/[id]/threads production-ready-agent/s...pi/session/[id]/threads	route.ts route.ts	7:17 7:17	view