CCARF Practice Question

Paper 3 · Question 38

D1 Agentic Architecture & Orchestration · Paper 3

[Scenario 4: Developer Productivity with Claude] You are building developer productivity tooling on the Claude Agent SDK: helping engineers explore unfamiliar codebases, understand legacy systems, generate boilerplate, and automate repetitive tasks — using the built-in tools (Read, Write, Edit, Bash, Grep, Glob) plus MCP servers. The task is open-ended: “add comprehensive tests to this legacy codebase.” Nobody knows yet where the risk concentrates or what depends on what. Which decomposition approach fits?

• A.First map the codebase structure, identify high-impact areas, then create a prioritized plan that adapts as dependencies and surprises are discovered
• B.Write tests file-by-file in directory order until done
• C.Generate all tests in a single maximal request
• D.Test only the code modified in the last month

Show answer & explanations

Correct answer: A

A: Open-ended tasks call for adaptive decomposition: understand the terrain, prioritize by impact, and let the plan evolve with what each step reveals — the opposite of a fixed pipeline chosen before anything is known.

B: spends effort by directory-listing order rather than risk

C: asks one pass to do what requires discovery

D: uses recency as a proxy for importance — legacy risk often lives in old, untouched code

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