Built on REA: Reverse Engineer Anything
Two apps in.
One new thing out.
Wire any two repos, links or app names into the fuse. ReaFuse reverse engineers both with REA, fuses their capabilities, writes fresh code and tests it until it holds current, or blows.
- —lines of app code dissected
- —source files studied
- —tests written before code
- —fusions run
—×—→—
Open this run ↗Replaying real fusions from the parts catalog.
01Procedure
RSLVResolveApp names and sites become open-source twins.INTKIntakeShallow clone, license gate.DSCTDissectREA static analysis → spec cards. Behavior, never code.FUSEFuseThree concepts. You choose one.CTRCContractAcceptance tests written before birth.GROWGrowFresh code, zero dependencies.VRFYVerifySandboxed tests, repair rounds.ORIGOriginalityClean-room scan against both donors.
02Recent creatures fresh from the lab, tested and alive
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03Use ReaFuse by hand, or from your agent
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01Name two apps
Type them into Terminal A and B. App names (Spotify), websites (instagram.com) and GitHub repos (vercel/ms) all work.
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02Throw the switch, pick one
ReaFuse finds open-source twins, dissects both and proposes three new creatures. You choose which one grows. You get a live link, and you can close the tab.
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03Take it home
Every creature arrives tested, with a report of what came from which app. Preview it, read the code, or download the ZIP.
git clone https://github.com/sickpyramid/ReaFuse cd ReaFuse && npm install && npm link reafuse fuse Spotify Instagram
claude mcp add reafuse -- node /path/to/ReaFuse/bin/reafuse.mjs mcp
Tools: reafuse_fuse starts a run, reafuse_answer returns each stage's JSON, reafuse_pick chooses a creature. Runs on your machine with your own model.
reafuse fuse Spotify Instagram --brain auto --pick 1 reafuse resume <run-id> reafuse doctor
Brains: auto, kilo (free, no account), claude-cli, hybrid, handoff. Agent skill: skills/reafuse/SKILL.md ↗
A×B
Lab tape (raw log)00:00
How it was made
Report, files & donors
Select a file.
⚡ Fusion complete: three creatures can be born
Choose what to build
The lab writes tests first, then grows your pick from scratch and verifies it.