The numeric-slot law, the on-device readers it calls before it speaks, why every action needs a tap, and what the model card states.
Most assistants bolted onto a finance app will happily invent a number. DeXaI is built so that it structurally cannot.
DeXaI never types a number.
Every figure it shows is a fact pulled by a named tool and rendered as a slot, carrying its source and its freshness. Prose from a language model may only reference those facts by slot. Any bare numeral a model invents is struck out rather than shown.
This is the difference between an assistant that is usually right and one you can act on. "Ether is around 3,400" from a model is a guess dressed as a fact. The same sentence from DeXaI is either a slot filled by the price reader — with the source and the age of the reading attached — or it is not a sentence at all.
Before it says anything, DeXaI reads. Every tool is an on-device reader of something the app already knows:
coin · market · news · book · journal · forecast · weather · sectors · odds · learn (the knowledge base and the Academy) · calc · security · pool · supply
So "how is my week going" is answered from your journal, not from a plausible story about a week. "Is this pool safe" runs the security reader against the contract. "What is funding" comes from the knowledge base, which has an entry for everything the app can do.
DeXaI can compile an action — an alert, a rung, a forecast, a paper order — and show you the preview. Nothing changes your book until you confirm it. The compiled rule is readable before you accept it, so you are approving a specific thing rather than trusting an intention.
The alerts compiler is worth calling out: you say tell me if this moves more than usual before Friday, and it produces a rule you can read and edit. The compiler is deterministic on its own — a model can front it, but the app never needs one to make an alert.
Device-only by default. The default configuration runs on your machine, which is the same answer the rest of the app gives to every question about data.
If you want a larger model, the Trust Center is the one place a gateway URL is set — pasted by you. The app never holds a key, and the model card states plainly what leaves the device in that configuration, what the memory window is, and which providers are in play.
It will not tell you what to buy. It has no view, it makes no recommendation, and there is no path where an assistant inside a paper-trading app becomes financial advice.
It will not invent a figure, as above. And it will not act on your account without a tap.
Every claim on this page is restated in the app itself, in the Trust Center: the numeric-slot law, the tool list, the privacy modes, the memory window, and the providers. Alongside it sit DexLadder's laws in plain language and the feed diagnostics — every host the app talks to, with its health and its cooldown.
An assistant that explains a market should be at least as legible as the market. Read the Security, Privacy and the Trust Center piece for the rest of that, and Sovereignty, the Proof Ledger & On-Device Design for where your data actually lives.