Find the mod most likely behind a modded Minecraft crash (Fabric, NeoForge, Forge). Use it whenever the user shares a crash report or latest.log or says the game will not start. It is the only tool that reads logs, and it adds what the file does not hold: it checks every installed mod against the Modkeel lab (pairs in the pack that clashed, jars that crashed on that Minecraft version), says how many other players hit the same crash and which fix worked for them (when 10+ did), counts lab runs of each suspect, and ranks suspects by evidence (mixin, trace, missing class) with a confidence level (NONE when nothing points at a mod). It also returns a fix guide and, when the log names the Minecraft version and loader, the build to install for the suspect and for every installed mod the lab saw crash on that version, so no follow-up call is needed. Pass the whole file as text, unedited: trimming it loses the mod list; or, when the user gave a link to a paste (mclo.gs, pastebin.com, paste.ee, gist.github.com, modkeel.com), pass url instead and Modkeel fetches it. Text with no crash in it comes back as an error to fix and retry. Up to 4 MB; read and dropped, never stored.