agent memory

Memory is a retrieval problem plus a write-policy problem plus a privacy problem. Most candidates only design the first. Covers memory taxonomies, the curation pipeline, and the leak vectors that fail the question.

Single-session evals pass while users complain, because memory fails across sessions and at three separate stages. The answer is a planted-fact harness that names which stage lost the fact, plus the two tests teams skip: forgetting on request and leaking across users.