Topics · Concept
Context engineering
Deciding what a model sees: pinned context, retrieval, memory, and the conventions that keep them honest.
- Within
- Agents
- Pages
- 3
On the map 3 pages and the topics around it
2026
- 19 min
Memory Is a Write Path
Retrieval reads context the project authored. Memory is the agent writing context for its own future sessions, and the write is the part that is dangerous. Why session memory comes free from the transcript, why cross-session memory needs a separate write surface, and how to let an agent remember without letting it corrupt its own ground truth. Part six of The Agent Platform Handbook.
- 16 min
Retrieval Is a Tool, Not a Layer
Loading the whole .AGENTS/ directory on every turn does not scale. The fix is not a retrieval layer bolted to the side of the agent. It is a search tool in the registry the agent already has. BM25 over project docs, no vector store, and an honest account of when embeddings start to earn their keep. Part five of The Agent Platform Handbook.
- 26 min
Context Is the Product
Models are commodities. Context is not. The sources of context an agent draws on, why retrieval alone is not enough, and a minimal .AGENTS/ convention that loads context from disk into the same harness we have been building. Part four of The Agent Platform Handbook.