ConstReadonlySYSTEM: 100System instructions - highest priority, never pruned
ReadonlyTASK: 80Current task description and requirements
ReadonlyACTIVE: 60Active working content (recent code, research)
ReadonlyHISTORY: 40Historical context (older messages, results)
ReadonlyEPHEMERAL: 20Ephemeral content (debug logs, temp data)
Priority levels for context content. Higher priority content is retained longer during pruning.