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replica-diff

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By Jakeschincariol/replica-skill (GitHub) · coding · 8,722 stars · scanned at commit 77c9436

Compares an app clone against the original: a feature parity score from the feature matrix (weighted by must, should, could) with the missing list in build order, plus a screenshot layout diff that ignores colour so a rebrand does not count against you. Two standard-library Python tools. Use when the user says "how close is my clone", "compare it to the original", "what's missing", "parity check", "diff the screens", "is it ready", or after /replica-test.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'replica-diff' ] || [ -L ~/.agents/skills/'replica-diff' ]; then echo 'A skill folder named replica-diff already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/Jakeschincariol/replica-skill' "$d" && git -C "$d" checkout --quiet '77c9436fb3d18c3d58169efb8caf4fe906b0dc51' -- 'replica-diff' && mkdir -p ~/.agents/skills && cp -R "$d"/'replica-diff' ~/.agents/skills/'replica-diff' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'replica-diff' ~/.claude/skills/'replica-diff' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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