Courses · 6 pieces
Context engineering
6 mission decks on what a model sees and when. Prompt caching, retrieval, memory, tool design and agents that run for hours.
Decks
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What context engineering is
The window as a budget, what goes in, order, and why it beats prompt tweaking
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Prompt caching
cache_control, prefix order, TTL, minimum lengths, batch caching and your call sites
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Retrieval and grounding
Graph modes, RRF, citations, and what to retrieve versus keep resident
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Memory
memdb episodes and lessons, the MEMORY.md budget, harness memory writer and compaction
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Progressive disclosure and tool design
Skills on demand, the tool catalogue budget, structured observations and sub-agents
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Long-running agents
Checkpoints, evidence files, handoffs, the Sessions hub and context rot