CCARF Practice Question

Paper 3 · Question 22

D1 Agentic Architecture & Orchestration · Paper 3

[Scenario 3: Multi-Agent Research System] A coordinator agent built on the Claude Agent SDK delegates to specialized subagents — web search, document analysis, synthesis, and report generation — to research topics and produce comprehensive, cited reports. The web search subagent gathers excellent findings, but the synthesis subagent's reports are generic and reference none of them. The coordinator invokes synthesis with the prompt “Synthesize the research findings.” What is wrong?

• A.The synthesis agent's model needs extended thinking enabled
• B.Subagents do not inherit the coordinator's conversation history — the coordinator must include the actual findings (search results, analysis outputs) directly in the synthesis subagent's prompt
• C.The synthesis agent needs web search tools to gather its own findings
• D.The prompt needs the word “please”

Show answer & explanations

Correct answer: B

A: adds reasoning capacity over an empty input

B: Subagent context isolation is the rule: each subagent sees only what its prompt contains. “The research findings” refers to material the synthesis agent has never seen — the coordinator must pass the findings explicitly.

C: duplicates the search agent's role instead of fixing the handoff

D: is not the missing ingredient — data is

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