Corneliu CroitoruPatterns from building with AI.https://corneliucroitoru.com/The Search Grammar Pattern: Natural Language Search with LLMshttps://corneliucroitoru.com/writing/search-grammar-pattern/https://corneliucroitoru.com/writing/search-grammar-pattern/How I built natural language search for my movie app with one small LLM call, and the pattern behind it: describe the offer by its dimensions, not its rows.Sun, 04 Oct 2026 00:00:00 GMTTwo towns named Calheta: debugging an LLM verification pipelinehttps://corneliucroitoru.com/writing/two-towns-named-calheta/https://corneliucroitoru.com/writing/two-towns-named-calheta/A real receipt, refused three times, for three different reasons. Three bugs at three layers, and why designing the failure direction first made being wrong survivable.Sun, 04 Oct 2026 00:00:00 GMTThere are characters you cannot seehttps://corneliucroitoru.com/writing/characters-you-cannot-see/https://corneliucroitoru.com/writing/characters-you-cannot-see/Some Unicode characters render as nothing, and a model reads them as text. How I made prompt injection useless on my travel site. Not resisted. Useless.Mon, 28 Sep 2026 00:00:00 GMT178 reports in one afternoon: what a publish burst does to an LLM pipelinehttps://corneliucroitoru.com/writing/publish-burst/https://corneliucroitoru.com/writing/publish-burst/A traveller published 178 trip reports at once. My site had 9 before that. The queue between the trigger and the model, and what held.Mon, 21 Sep 2026 00:00:00 GMTI pay an LLM to approve bad reviewshttps://corneliucroitoru.com/writing/llm-approves-bad-reviews/https://corneliucroitoru.com/writing/llm-approves-bad-reviews/Every trip report goes through a model before readers see it. The most important line in that prompt is not about catching bad content.Mon, 14 Sep 2026 00:00:00 GMTYou just write. The places find themselves.https://corneliucroitoru.com/writing/places-find-themselves/https://corneliucroitoru.com/writing/places-find-themselves/You write the trip the way you would tell a friend. Minutes later the places you mentioned are on a map. Where the model's job ends.Mon, 07 Sep 2026 00:00:00 GMTThe librarian pattern: how I keep my AI coding assistant from breaking my apphttps://corneliucroitoru.com/writing/librarian-pattern/https://corneliucroitoru.com/writing/librarian-pattern/One index file, one doc per feature flow, and a 40-line bash hook. How I keep an AI coding assistant from breaking my app.Wed, 26 Aug 2026 00:00:00 GMT