agastaAgasta's blog: open source, maps, AI agents, diagrams and Rust.https://agasta.dev/enWe built an AI research lab in Slack for our student group, and it caught its own mistakeshttps://agasta.dev/blog/raccoonlabs/https://agasta.dev/blog/raccoonlabs/Six AI lab members on Claude Code, Codex and OpenCode, a human professor at every gate, and a sealed paper to prove we didn't steer. Here's what four hours of real research looked like.Sun, 08 Nov 2026 00:00:00 GMTagentsraccoonlabshackathonDeleting the poisoned page doesn't undo what your agents did with ithttps://agasta.dev/blog/poisoned-page/https://agasta.dev/blog/poisoned-page/One injected web page told my support agents to refund anyone claiming VIP. Deleting the page didn't undo what the agents had already learned from it.Sun, 18 Oct 2026 00:00:00 GMTagentssecurityI got tired of AI diagram slop, so I built an open-source AI diagram generator on Excalidrawhttps://agasta.dev/blog/opendiagram/https://agasta.dev/blog/opendiagram/AI kept giving me unreadable architecture diagrams, so I built an open-source generator on Excalidraw where the LLM never touches pixels.Sat, 26 Sep 2026 00:00:00 GMTopendiagramaiHow I Rebuilt OpenStreetMap’s Category Model During GSoChttps://nominatim.org/2026/09/01/gsoc-2026-nominatim-categories.htmlhttps://nominatim.org/2026/09/01/gsoc-2026-nominatim-categories.htmlHow I gave Nominatim a real category model during Google Summer of Code 2026.Tue, 01 Sep 2026 00:00:00 GMTgsocopenstreetmapGSoC 2026 final summary: category support in Nominatimhttps://www.openstreetmap.org/user/Agasta07/diary/409236https://www.openstreetmap.org/user/Agasta07/diary/409236My OpenStreetMap diary entry for GSoC 2026.Sat, 22 Aug 2026 00:00:00 GMTgsocopenstreetmapAre you still using a router-orchestrator for your agents in 2026?https://agasta.dev/blog/router-orchestrator/https://agasta.dev/blog/router-orchestrator/The router-orchestrator pattern lived in our codebase until it didn't. Here's what replaced it.Tue, 04 Aug 2026 00:00:00 GMTagentstypescriptGSoC midterm: category support in Nominatim, first half reporthttps://www.openstreetmap.org/user/Agasta07/diary/409035https://www.openstreetmap.org/user/Agasta07/diary/409035My OpenStreetMap diary entry for GSoC 2026.Sun, 12 Jul 2026 00:00:00 GMTgsocopenstreetmapAdding a column to 22 million rows without melting the databasehttps://agasta.dev/blog/22-million-rows/https://agasta.dev/blog/22-million-rows/One harmless-looking migration on a 22 million row table, and the boring three-step pattern that stopped it locking everything.Sat, 11 Jul 2026 00:00:00 GMTpostgresnominatimI needed cross-platform screen capture in Rust, so I built pinrayhttps://agasta.dev/blog/pinray/https://agasta.dev/blog/pinray/Cross-platform screen capture in Rust should be a solved problem. It wasn't, so I built pinray.Mon, 06 Jul 2026 00:00:00 GMTrustGot into GSoC 2026! Working on category support in Nominatimhttps://www.openstreetmap.org/user/Agasta07/diary/408790https://www.openstreetmap.org/user/Agasta07/diary/408790My OpenStreetMap diary entry for GSoC 2026.Tue, 26 May 2026 00:00:00 GMTgsocopenstreetmap