Context Engineering Overview Core principle: Context is a finite resource with diminishing returns. Find the smallest high-signal token set, not the largest. 200K tokens is shared space: system prompt + conversation history + your processing. As context grows, performance degrades predictably. When to Use - Session 30 minutes or 50k+ tokens - Instructions being ignored or forgotten - Repeated clarifications needed - Planning multi-agent workflows - Preparing handoffs between sessions Quick Reference | Problem | Symptom | Fix | |---------|---------|-----| | Lost-in-middle | Mid-conversation in…