deepseek-ai/deepseek-harness
DeepSeek Harness: Everything is a Plugin.
GitHub 
410K
lines of main code
5.2K files
588K
lines of test code
2.7K files
206K
lines of other code
4.5K files
<1y
age
119 days
100%
main code touched
1 year (410K LOC)
285K
ts
44K
tsx
37K
yaml
25K
css
MJS
7.9K
mjs
5.7K
py
1.4K
ps1
NSH
1.2K
nsh
JSONL
1K
jsonl
0.6K
h
0.4K
cpp
0.3K
c
0.3K
js
0.1K
html
0.07K
cjs
CMD
0.03K
cmd
30 days 2026
+5.2M
-1.2M
+14M
-3M
178K

437K

3.8K

14K

56

71

2026
Rule-of-thumb estimates

Rebuild value

to rebuild
rebuild value

Maintenance effort

per year to maintain
maintenance cost per year
Rules of thumb, not measurements: one man-year rebuilds about 10,000 lines of main code (design, testing and coordination included), and keeping a code base alive takes about 15% of its rebuild value per year (20 man-years of rebuild value need about 3 man-years of maintenance every year). Your changes are remembered in this browser for every report.