Safe Load

Say one day your server has a command block that is on repeat, all ways active, that has the command “kill @e” Which for those who don't know will repeatedly kill all players and mobs, Essentially making your server bricked. Now a way to fix this is you could drag the world file from the server to the your client (if it is a server). Then you could load up Minecraft>Open Singleplayer. Then select the world. Now instead of clicking “Open World”, you could select Safe Load and It would load you in, with a special gamemode, similar to Spectator but you can break blocks, And only that. You can not interact with any blocks and the main part, all command blocks are frozen so you can destroy the item that is bricking your world. If it is a gamerule that is causing your world to be bricked, you would not use commands in the gamemode all commands are disabled including chat. There would be a UI element that would, if pressed you could change all gamerules. This game mode would not be able to be able to be selected with commands or when generating the world. Only available through the Safe Load feature. That is hopefully this gets added and worlds can be fixed.