https://t0ul.com/tags/retrieval/Recent content in Retrieval on t0ulHugoen-usTue, 17 Mar 2026 00:00:00 +0000https://t0ul.com/blog/answering-what-is-on-this-month/Tue, 17 Mar 2026 00:00:00 +0000https://t0ul.com/blog/answering-what-is-on-this-month/<p><em>Part of my <a href="https://t0ul.com/blog/the-plan/">AI Security Engineering</a> series, a local email-to-calendar agent I build, then attack, then harden. If you have not set up the lab yet, start with <a href="https://t0ul.com/blog/setting-up-the-lab/">Set up your lab</a>. The lessons are <a href="https://github.com/t0ul/ai-security-engineering">on GitHub</a>, and the agent itself lives at <a href="https://github.com/t0ul/emaildrop">t0ul/emaildrop</a>.</em></p> <h2 id="a-question-the-agent-could-not-answer-yet">A question the agent could not answer yet</h2> <p>Everything so far has worked one email at a time: a newsletter comes in, the agent extracts its events, and that is the end of the transaction. But the questions you actually want to ask an assistant are not about one email. &ldquo;What is on this month?&rdquo; is a question about everything it has ever read, and to answer it the agent needs to look back across a pile of past newsletters and pull out the few passages that are relevant now.</p>