CCARF Practice Question

Paper 4 · Question 34

D1 Agentic Architecture & Orchestration · Paper 4

A developer resumes a Claude Code session after modifying 3 files in a 50-file codebase. The agent gives contradictory advice about the modified files because it is reasoning from stale tool results. What is the correct approach?

• A.Start a fresh session with an injected summary of prior findings, noting the 3 changed files for targeted re-analysis.
• B.Resume the session and ask the agent to re-read only the 3 modified files, overwriting the stale results already in the context window.
• C.Start a completely new session and have the agent re-analyse all 50 files from scratch so nothing stale survives into the new context.
• D.Use fork_session to branch the session so the new branch picks up the 3 changed files while the original keeps the earlier state.

Show answer & explanations

Correct answer: A

A: A fresh session with summary injection avoids stale tool results. Specifying the 3 changed files enables targeted re-analysis without wasting time on unchanged files.

B: Resuming preserves the stale tool results in context, and a later read does not overwrite an earlier one. The agent may still reason from outdated information for other decisions. A fresh start with summary injection is more reliable.

C: Re-analysing all 50 files is wasteful when only 3 changed. A fresh session with summary injection plus targeted re-reading of the 3 changed files is more efficient.

D: fork_session creates an independent exploration branch from a shared baseline, and that baseline still carries the stale results. It is for divergent approaches, not for updating stale context after file changes.

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