CCARF Practice Question

Paper 3 · Question 27

D2 Tool Design & MCP Integration · 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. Subagents burn many tool calls just discovering what data exists — listing available document collections, probing for issue summaries, checking what schemas are present — before real work begins. Which MCP capability reduces this?

• A.Expose content catalogs (document hierarchies, issue summaries, schema listings) as MCP resources, giving agents visibility into available data without exploratory tool calls
• B.Increase the tool-call budget so exploration is affordable
• C.Hard-code the current data inventory into every system prompt
• D.Remove discovery capability so agents work blind

Show answer & explanations

Correct answer: A

A: MCP resources exist for exactly this: exposing catalogs of available content so agents start informed. Discovery becomes a lookup instead of a spelunking expedition of exploratory calls.

B: pays for the inefficiency rather than removing it

C: goes stale the moment the data changes

D: trades wasted calls for ignorance

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