CCA-F: Claude Certified Architect — Foundations

By Anthropic · Question Mode

QuestionQ52

Agentic Architecture & Orchestration

You are building developer productivity tools with the Claude Agent SDK. The agent helps engineers explore unfamiliar codebases, understand legacy systems, generate boilerplate code, and automate repetitive tasks. It relies on the built-in tools (Read, Write, Bash, Grep, Glob) and integrates with Model Context Protocol (MCP) servers.

Yesterday, an engineer used the agent to analyze a legacy authentication module and identified two distinct refactoring approaches:

  • Extracting a microservice
  • Refactoring in-place

Today, the engineer wants to explore both approaches in depth — having the agent propose specific code changes for each — before deciding which one to implement.

What is the most effective way to structure this exploration?

Explanation

The Claude Agent SDK provides a fork_session capability that, combined with resuming a prior session, creates new independent session branches that inherit the full transcript/context of the original session up to the resume point, while leaving the original session untouched. This lets the engineer preserve yesterday's authentication-module analysis as shared context and then explore the microservice-extraction approach and the in-place-refactor approach in two separate, independent forks — avoiding cross-contamination between the two explorations (unlike continuing sequentially in one thread) and avoiding the inefficiency and fidelity loss of manually re-establishing context in fresh sessions.

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