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Tell HN: Fable guardrails trigger on random questions 4 by nocoder | 0 comments on Hacker News. I have Fable guardrails trigger on seemingly innocuous questions. Two examples: a) What is Echium b)I want you to deep dive on coffee and it’s effect on health, cognition and longevity. The output should be something that tells you areas where the evidence is strong and where it is weak but plausible and where there is no strong evidence. Does anyone know why this happens? I have many such examples where it will randomly switch models.

Bitemporal provenance in agent memory: What did we believe, when, and why 2 by shanrizvi | 0 comments on Hacker News. CozoDB, a transactional relational-graph-vector database with embedded Datalog in Rust, went dormant in December 2024. We hard-forked it as MnesticDB (not official CozoDB), under an MPL-2.0 license, to continue Ziyang Hu and the Cozo Project Authors' vision of building a "Hippocampus for AI", or agentic memory. But agentic memory isn't a pile of current facts with a log of past decisions. It has to track change over time, and be auditable. We've recently shipped several features that make this possible. First, we added a distinction between valid time (when a fact is true about the world) and transaction time (when the database came to believe it). This allows time travel, the ability to audit the memory at any point and see what knowledge any past decision was based on. Every write draws its transaction time from a crash-safe monotone commit cl...

Ask HN: My father died and I need to find my path 4 by c4kar | 5 comments on Hacker News. It's been 38 days and 6 hours since my father passed away. I was let go from my internship during the last month we spent at the hospital. I went to the hospital in tears and poured my heart out to my father. He told me something I can still hear ringing in my ears: "If, when I took the university entrance exam, I had the opportunity to get into the best university in the country, believe me, I would study day and night to get in. I'd find some way, study hard, and get in. Your profession matters so much. Having a good profession is crucial for your family's comfort and future." Those words became a pearl earring in my ear. After saying this, he kept giving me advice to pull me away from the uncertain path I was on. And now he's gone. For the past two years, I've been studying electrical and electronics engineering in my country (Turkey), and this semester I notice...

Google deleting all recently inactive accounts without phone number 7 by superkuh | 5 comments on Hacker News. Google is now deleting all accounts that do not, and have never had, phone numbers associated with them if they haven't logged in within a year or so. "Urgent: Sign in to your Google Account if you want to keep it" But then it doesn't matter if you log in with the correct username and password and receive the PIN via your email. This is isn't enough. Unless a phone number is somehow added to the account one gets, "You can’t recover your account at this time because Google doesn’t have enough info to be sure this account is yours." This is despite having all information ever associated with the account. Unless that account has a phone number it will be deleted. This is a very shady dark pattern by Alphabet corporation.

One Wikipedia page costs your AI agent 68,000 tokens 6 by arhamislam5766 | 1 comments on Hacker News. i use claude code daily and measured what pages cost it while doing research. an average wikipedia article, for instance, is 68,240 tokens of raw html (tiktoken); nike's homepage is 353,000. claude code's built-in webfetch handles the easy case well. it summarizes wikipedia to about 950 tokens and clears cloudflare on some sites like indeed and ticketmaster. but, and there's always a but, on js-rendered and some anti-bot pages it returns nothing. quotes.toscrape.com/js gives "no quotes found"; nike.com gives a 403. your agent then dumps the raw html back into context and still fails. (note: i have also had cases where i read through the chat at the end and saw that it failed and just pulled from either training data or stale caches from other sources) so i worked on building an open-source stealth browser (recompiled chromium) that runs as an mcp for claude cod...

Ask HN: What data have the frontier AI companies not ingested yet? 2 by lysace | 1 comments on Hacker News.