In this channel's material, CLAUDE_CODE_TASK_LIST appears as the environment variable for shared task lists in Claude Code's Tasks system. Tasks no longer live inside a session: they persist on disk in a tasks folder in the home directory (replacing the old todos ledger), and the environment variable points multiple Claude instances at a shared list [^9ad78550-8aa6-5f8a-8069-903f60c1df13@1342]. That shared persistence is what enables a division of labor — a planner you talk to, a worker that picks up tasks, and a tester that runs the browser — all coordinating through one work queue [^9ad78550-8aa6-5f8a-8069-903f60c1df13@825].