3 pieces · 31 minutes

Context, memory and tools

What the agent can see, what it retains, and what it is able to act on.

Covers: Context engineering · Context & memory · Tool use

01Context Engineering: Why More Context Can Make an AI Agent WorseContext engineering411m

The model can only make its next decision from what is in front of it. Context engineering is the practice of keeping that working set current, relevant, and deliberately small.

Context engineering11 min read4 sources 02How Tool-Using AI Agents Work: A Weather Assistant, Step by StepTool use510m

Follow one tool call from a user request to a validated result, then see what changes when an agent can take actions instead of only reading data.

Tool use10 min read5 sources 03Agent Memory, Explained: Context, Retrieval, and StateContext & memory310m

Separate four mechanisms that are often called memory, then use the distinctions to design and test an agent that remembers the right things.

Context & memory10 min read3 sources

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