A developer resumes a named session in which the agent had analyzed an authentication module. Overnight, they changed only token_store.py and session.py; the rest of the module is untouched. What is the most effective way to continue?

Answer: C — Resume and tell the agent which two files changed and how, so it re-analyzes those before continuing

When prior context is mostly valid, resume and inform the agent about the specific file changes for targeted re-analysis. Full re-exploration (a) throws away valid context, saying nothing (b) leaves the agent reasoning from its old reads of those files, and a fresh session (d) is for when most tool results are stale, not two files.