You can use OSRS Gold to block certain things that you or your keyer cannot access. (Prioritize the gds rooms, rooms that require a whole team, and skill rooms/doors/keys). If doors that are not locked have been opened, you should avoid the group. It is important to remember the keying points. You can write them down, or you can use a map to mark key doors/gds/rooms on the map.
Do you have 2 gds These are able to be sorted and compared with your map to determine which one leads you to more doors. A gate that is free? Use it to reverse doors you think will chain to a de. It is possible to ask your team members to "DROP at GGs" or "GGs heal" whenever they feel the need. It's all about their speed. Team in gd but need door open? Lock the door, hand 1 teammate a gate, and then ask them to open the door.
Do you have to open a door but the gate is locked? Two options are available: move your gate to the nearest door or remember the spot and move when your team is closer. Find the tools and cosmics you need as soon as possible. No altar, no pray? Then, ask your team to build it. Dont's never skill, never ever do it. Gds shouldn't be performed only when absolutely essential.
Never give bosses things that aren't necessary. This includes food, potions (unless necessary), and unessequious runes (unless necessary). Summoning familiars are not worth the effort, as the ragers are on warped floors. You shouldn't be able to gate stupid things (farm patches or fishing spots, etc.).
Always give food to the person you are asked. This is because they will take more damage (proved in end-at-gd, keyer RS 3 Gold has "meat shield award"), so it's important that you don't keep food in your fridge.