Building Agents with Claude: API, Agent SDK and Claude Code

The applied unit that follows the vendor-agnostic theory: everything Agentic Engineering taught in the abstract, built for real on one stack. The Messages API tool handshake, the Agent SDK loop, then Claude Code itself as the worked example, subagents, hooks, MCP, skills and context files, a guarded fleet, and a complete workflow. Version-stamped to current model ids and API shapes, so check the docs when a parameter moves.

1. 1The Messages API and tool use3 q
2. 2Streaming, structured output, and caching3 q
3. 3The Agent SDK loop3 q
4. 4Claude Code as an agent you drive3 q
5. 5Subagents, hooks and MCP in Claude Code3 q
6. 6Skills and context files3 q
7. 7Orchestrating a fleet3 q
8. 8A complete agentic workflow3 q