Buying a house in another country is a six-figure decision, and a lot of what you find online is outdated, copied from blogs, or just made up by AI chatbots. I started this because I was looking for a country to live in and a place to move to, and couldn't find any useful apps, sites or AI skills for it. So I built property-deep-dive. It's a skill for AI agents (Claude Code, Codex, Cursor, Gemini CLI, ChatGPT and others). You give it an address or a listing link and it runs a due-diligence check for that country: purchase taxes, rental rules, flood and earthquake risk, utilities, mortgage, visa, scams, title fraud and more. 126 countries and territories, 41 sections. The part I care about most: it's not allowed to pass a guess off as fact. Every number has to be one of: sourced, with a citation (government and regulated bodies count as fact; listing sites, aggregators and press are labelled as such) computed, with the inputs shown marked as an estimate If there's no source, it says "data not publicly available, verify at X" instead of inventing something. Example of what it catches: Slovenia's new short-let law caps letting out a dwelling at 60 days a year in 2027 and 2028 in 14 "high-risk" municipalities, unless the municipality set its own 30 to 270-day limit by 31 Oct. Ljubljana didn't, so it's 60 days there. Bled did: 270 for companies and sole traders, 180 for private individuals, 30 in apartment buildings in some areas. And private individuals are capped at 180 days a year nationwide anyway. On top of that there's a referendum on 6 Dec on a separate law that would change parts of this if it takes effect, and the tool tracks that too. If you're buying a flat to rent out short-term, this changes the math a lot. Keeping it current is most of the work. Laws and taxes change all the time, so a big part of the repo is maintenance, mostly automated with GitHub Actions: Daily: a watcher on EU feeds (Commission, Parliament, Court of Justice) that flags property-related items, and a check for tracker entries that are due for re-verification Weekly: a link checker goes through the ~10,000 cited URLs and re-fetches any not confirmed live in the past month, plus alerts for rules about to take effect Monthly: a health report showing which countries are getting stale, and an audit that checks whether figures cited to government pages still appear on those pages Quarterly to yearly: refresh reminders per country tier A regulatory tracker with 600+ dated entries (tax changes, short-let caps, visa programs that ended) The monitoring Actions only raise flags, though. The actual re-verification means an agent reading the sources again, country by country, and when I do a research pass, a second agent tries to prove each change wrong before I merge it. That burns a heap of tokens every month :) So if you want to help, it's very welcome: Found something wrong or outdated? There are issue forms for factual corrections and broken links. Live in one of the countries? Re-checking your own country is the most useful thing anyone can do. Know about a new law or tax change? There's a form for that too. It's decision support, not legal or tax advice. It helps you ask the right questions before you talk to a notary or a lawyer. Free, MIT licensed: https://github.com/soreavis/property-deep-dive I'd love feedback, especially from people who've bought abroad: which country is wrong, or missing something that bit you?   submitted by   /u/Geneosity [link]   [comments]