replica-diff
Skill1 starsChanged 18 days agoMITView on GitHub
Compare an app clone with the original: a feature parity score from the matrix (must, should, could weighted, partial counted as half, your own additions excluded) and a screenshot layout diff that ignores colour, so the rebrand does not count against you. Use for 'how close is my clone', 'compare with the original', 'what's missing', 'parity check', 'is it ready'; RU: насколько похоже, сравни с оригиналом, чего не хватает, готов ли клон.
2 other projects use a version of this, 2 of them edited.
Adopted by
Most recently taken up by
- realtahailyas/reverse-engineer-app-skillsedited, first seen Oct 25, 2026
- Jakeschincariol/replica-skilledited, first seen Oct 3, 2026
Other versions2 projects use a version of this.
Word for word · 0
None found.
Edited · 2
- Jakeschincariol/replica-skill★ 39916% same
- realtahailyas/reverse-engineer-app-skills★ 316% same
Wrote their own version · 0
None found.
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository10 other files it gives its agents.
- replica-architectSkill
- replica-backendSkill
- replica-brandSkill
- replica-buildSkill
- replica-deploySkill
- replica-designSkill
- replica-launchSkill
- replica-reconSkill
- replica-testSkill
- replica-usersSkill
The file
We split this skill into the rules it gives an agent
2 rules. About 0 are common, 1 is distinctive, and 1 is very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈1
Distinctive · estimate
This author's own choices. Worth a look.
1
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Very specific: line 23
Every clone cell is yes, partial (with a note), no, or skip (with a reason).
- Distinctive: line 41
Not shippable (a must-have missing or an open S1), shippable (all musts, 80+, no open S1 or S2), or better than the original (shippable …
≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
replica-diff
python3 parity.py replica/features.csv
python3 imgdiff.py replica/screens/S07.png replica/clone-screens/S07.png --out replica/diffs/S07.png
python3 imgdiff.py replica/screens/S07.png replica/clone-screens/S07.png --json > replica/diffs/S07.json
python3 parity.py replica/features.csv --visual "replica/diffs/*.json" --markdown > replica/parity.mdWhat parity means
It does the same job, not that it looks the same. The feature score is the number that matters. The layout score checks structure, because that is what makes a switcher feel at home, and it ignores colour on purpose. Never chase pixel parity: the exact look is the original's trade dress.
Feature parity
Every clone cell is yes, partial (with a note), no, or skip (with a reason). Weights must 3,
should 2, could 1, partial half. Skip rows and rows the original does not have are left out. Any
must-have missing means not shippable.
Layout diff
Two screenshots at the same viewport (1440x900, 390x844), in the same state, with the same shape of
data. Large retina screenshots take a while: the decoder is pure Python. --mode pixel is for the
clone against itself last week.
Behaviour diff
Walk each flow in both: clicks to finish, error handling, what is remembered, which emails arrive. Fewer clicks than the original is a win. Each difference: flow, original does, clone does, fix or keep.
Verdict
Not shippable (a must-have missing or an open S1), shippable (all musts, 80+, no open S1 or S2), or better than the original (shippable plus fixes from /replica-users: the goal, because a straight copy has no reason to exist). Honest numbers: 62% is 62%.
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