Task System: A File-Based DAG That Survives Context Compaction

In the previous guide, we built a three-layer compaction strategy that lets the agent run indefinitely. That's a major capability — but it comes with a cost. Compaction is lossy. When auto-compact fires, the agent's entire conversation history collapses into a two-message summary. The gist survives — what was accomplished, which files were touched, key decisions — but the specifics vanish. If the agent was halfway through a twelve-step refactoring plan, the summary might preserve "refactoring in