Jev State and Questions Explained
Every request to Jev rests on two simple pieces: a state and a set of questions. The Jev state and questions you write decide almost everything about the quality of the result. Jev does not need a clever prompt. It needs clean information and sharp questions.
Think of it like hiring an expert for a five-second opinion. You would hand over the right file. Then you would ask a clear, narrow question. The same habit works here. Marketers who study for a Marketing Certification already practice this skill when they define audience segments, lead scores, and campaign rules. Jev simply lets software apply those rules at high speed.

This guide breaks both parts down. You will learn what a state is, how the three question types work, and how to write questions that hold up. You will also see real patterns from early builders and the weak spots to avoid.
The Quick Answer
The state is the information Jev judges. The questions are the judgments you want. Jev reads the state once, answers every question in parallel, and returns typed results with probabilities. Your code then decides what to do.
Here is a helpful memory trick. The state is the evidence. The questions are the verdicts you request. Code is the judge who acts on them.
Why State and Questions Matter Most
Chat tools let you tweak wording forever. Jev works differently. It expects you to define the problem clearly before you call it. Early builders say this takes real engineering thought. You must map the problem space, list the possible answers, and decide what each answer means.
That effort pays off. Clear state and questions give stable answers you can test and trust. Vague ones give shaky answers you cannot measure.
This is also why hiring managers now look for design skill, not just tool skill. Professionals who earn Artificial Intelligence Certifications learn to turn fuzzy goals into precise rules. Jev rewards exactly that habit.
Understanding State
State is any text or data your code already has. TypeSafe describes it as the material placed in front of the model before a question is asked. Anything the judgment needs should live inside it.
Plain Text State
The simplest state is a string. Examples include a customer message, a review, an email, or a paragraph from a report. Plain text works well when the judgment depends only on that one piece of writing.
Structured State
Complex cases need more. A refund decision, for example, depends on the message, the order charges, and the refund policy. Put them in one structured object, and give each part a clear name. Then your questions can point to each field directly.
This structure keeps relationships visible. It also prevents confusion, because the model can tell which fact belongs to which source.
Filter Before You Send
More data is not always better. TypeSafe's own notes warn that large, noisy state can distract the model. Unrelated details act like static on a phone line.
So trim your state first. Keep only what the judgment needs. If a question is about urgency, you probably do not need the customer's full purchase history. Small, focused state also costs less and fits comfortably inside context limits.
Understanding Questions
A question tells Jev what to judge. Each one has a name, a type, and instructions. Jev supports three types.
Noul: Is This True?
A Noul asks a yes or no question. It returns one probability between 0 and 1. A value near 1 means a strong yes. A value near 0 means a strong no. A value near 0.5 signals real doubt.
Use a Noul for detection tasks. Does this message request a refund? Does this page try to give orders to the AI reading it? Does this passage support the claim?
Choice: Which Option Fits?
A Choice picks from options you define. Each option has a short description, often called criteria. Jev returns a probability for every option and a confidence value for the whole answer.
Use a Choice for sorting and routing. Which team should own this ticket? What type of document is this? A single Choice can hold up to 255 options. Adding an "other" option is smart, because it gives odd cases a safe place to land.
Score: Where on the Scale?
A Score places something on ordered levels. You describe each level, and Jev returns a position, the spread behind it, and confidence. The result can fall between two levels.
Use a Score for severity, frustration, quality, or relevance. Write each level as a concrete situation. "Service down with no workaround" teaches the model more than the word "high."
How to Write Sharp Questions
Good questions share a few traits. Follow these habits and your results will improve fast.
Ask one judgment at a time. Suppose you want to rate a business pitch. Do not ask "Is this pitch good?" Instead, ask separate questions about the market, feasibility, and uniqueness. Then combine the three scores in code.
Be literal and specific. Jev answers the question you wrote, not the one you meant. If a boundary case matters, put it in the criteria. For example, say whether a polite request for help still counts as urgent.
Name the fields. When your state has several parts, refer to them by name in the question. That removes guesswork.
Layer your questions. One community builder reported that several smaller questions worked better than one big question. Breaking a decision into layers also makes each layer easier to test.
Keep math in code. Jev judges meaning. It is not a calculator, and it can misjudge counts and date comparisons. Extract the raw facts, then compute in code.
How State and Questions Work Together
Now let us watch the two parts cooperate. A community tool called pi-warden shows the idea well. It guards a coding agent before the agent runs risky commands.
The state holds three items: the user's task, the agent's stated plan, and the command it wants to run. The questions are small and literal. Is this action irreversible? Is it unrelated to the task? Does it differ from the plan? How does it relate to the task overall?
Jev answers all four in a fraction of a second, according to the project's own description. Code then decides whether to pause the command. The same command can be fine in one context and dangerous in another. That is why the state includes the task and plan, not just the command.
Engineers who follow a Tech Certification path will see the wisdom here. Strong systems split a hard decision into small, checkable parts. Then they let simple code combine the parts in a way that people can read and audit.
Three Patterns Worth Learning
Public cookbooks and community projects show recurring patterns. Each one pairs a clear state with a few sharp questions.
Reranking search results. The state holds a query and one candidate page. A Noul asks whether the page answers the query. Repeat for each candidate, then sort by probability. TypeSafe's cookbook reports gains over a plain keyword shortlist on a legal retrieval set.
Checking citations. The state holds a claim and the section of a source it cites. A Choice asks whether the section supports the claim, contradicts it, or says nothing about it. Code handles the simple check of whether a quote appears in the source at all.
Screening fetched pages. The state holds a query and a passage. Several Nouls ask whether the passage is relevant, contains evidence, or tries to instruct the AI. Code drops the risky ones. The cookbook itself calls this a filter, not a full security barrier.
Notice the shared shape. An earlier step produces the state. Jev makes a narrow judgment. Code acts.
Known Weak Spots
TypeSafe publishes notes on where Jev struggles. Reading them before you build saves time.
Weak Spot | What Can Happen | Better Approach |
Literal reading | Answers what you wrote, not what you meant | Put edge cases in the criteria |
Math and counting | Recognizes the shape of an answer without tallying | Count in code |
Date comparison | Treats dates like text | Extract parts, compare in code |
Multi-hop questions | Accuracy drops with indirection | Reduce steps, name the relevant field |
Noisy state | Extra detail distracts | Filter first |
Adversarial text | Injected instructions can nudge answers | Write precise criteria, test edge cases |
Context limits also matter. One public source lists 64,000 tokens for state plus questions, and 32,000 for state plus the longest question. Other platforms may list different limits, so check the current docs for your provider.
Jev and Generative Storytelling: The Tosheo Example
Creative platforms create plenty of small judgments around the main act of writing. A generator makes the content. A decision layer can sort and check it.
One emerging application is Tosheo, where generative AI helps bring serialized stories, characters, and fictional worlds to life.
Picture the possible state and question pairs. A chapter as state, with a Choice about genre. A submission as state, with a Noul about rule violations. This is a general design idea, and it does not describe how Tosheo works internally.
How to Test Your State and Questions
Do not trust any setup until you test it. Follow this short plan.
Choose one decision your team already makes, such as ticket urgency.
Collect about one hundred real examples with trusted human labels.
Write your state and questions, then run Jev on every example.
Compare the answers with the labels, and study the misses.
Adjust criteria, filter the state, and run again.
For context, one independent tester at Every compared Jev with a top reasoning model on writing checks. Reports say Jev caught six of seven planted defects, while the larger model caught all seven. Jev was far faster and cheaper. That result is a fair guide for expectations: big savings, with a small accuracy trade.
Conclusion
The Jev state and questions you design are the real engine of the system. A tight, filtered state gives Jev the right evidence. Narrow, literal questions give it a clear job. Confidence values and simple code then turn its answers into safe action.
Start small, test on real examples, and refine one piece at a time. Learners who want a broader technical base for this work can begin with a Deep Tech Certification and grow from there. With solid basics and careful testing, you can use fast models like Jev with confidence.
Frequently Asked Questions (FAQs)
1. What are state and questions in Jev?
State and questions are the two inputs of every Jev request. The state is the information to be judged, such as a message, a record, or a group of related items. The questions are the judgments you want, each with a name, a type, and instructions. Jev reads the state once, evaluates every question in parallel, and returns typed answers with probabilities. Your own code then reads those answers and decides what action to take.
2. What should I put in the state?
Put in everything the judgment needs and nothing more. For a simple task, a single text string may be enough. For a complex case, use a structured object with named fields, such as a customer message, order details, and a policy. Clear names let your questions point to exact parts. Avoid stuffing in unrelated data, because noise can distract the model, raise cost, and lower accuracy.
3. Should state be plain text or structured data?
Both work. Plain text suits judgments about one piece of writing, such as a review or an email. Structured data suits cases with several sources of truth, because named fields keep relationships clear. Public docs recommend structure for most non-trivial requests. As a rule, if your judgment depends on more than one document or record, build a structured object and refer to its fields by name in your questions.
4. Why does filtering the state matter?
Large states full of unrelated detail can act like static. The model must weigh everything it sees, so extra noise can pull attention away from the facts that matter. Filtering also reduces input tokens, which lowers cost and helps you stay within context limits. A good habit is to trim the state in your own code first. Keep only the facts each question requires.
5. What are the three question types?
The three types are Noul, Choice, and Score. A Noul asks a yes or no question and returns the probability that the statement is true. A Choice picks from named options and returns a probability for each one, plus confidence. A Score rates something on ordered levels and returns a position, the spread behind it, and confidence. Together they cover detection, sorting, routing, ranking, and severity rating.
6. When should I use a Noul?
Use a Noul when the question has a true or false answer. Good examples include whether a message requests a refund, whether a passage supports a claim, or whether a page tries to give orders to the AI. Avoid using a Noul for vague ideas like "Is this good?" because good needs a definition. If you can rewrite the question as a clear statement that is either true or false, a Noul is a strong fit.
7. When should I use a Choice?
Use a Choice when exactly one option from a list should win. Typical tasks include routing a ticket to a team, labeling a document type, or picking a model for a request. You describe each option with short criteria. A single Choice supports up to 255 options. Add an "other" option so unusual inputs have a fair place to land, and keep option descriptions from overlapping.
8. When should I use a Score?
Use a Score when the answer sits on an ordered scale. Good examples include severity, customer frustration, relevance, and quality. Describe each level as a concrete situation instead of a vague label like low or high. Jev returns a position that can fall between levels, because it reflects the spread of probability. Clear level descriptions make scores easier to test and compare over time.
9. Why should I ask one judgment per question?
Narrow questions give sharper and more stable answers. A broad question like "Is this pitch good?" hides many decisions inside it. Splitting it into market, feasibility, and uniqueness gives you three clear scores. You can then combine them with your own weights in code. Small questions are also easier to test, easier to fix when they fail, and easier to explain to teammates or customers.
10. What does "literal reading" mean for Jev?
Literal reading means Jev answers the question you wrote, not the one you meant. If your wording leaves a boundary case unclear, the model will follow the words. To prevent surprises, put important edge cases in your criteria. For example, state whether a polite request for help still counts as urgent. Testing on real examples helps you spot where your wording and your intent drift apart.
11. Can Jev do math or count items?
It is not built for that. TypeSafe's notes say Jev may recognize the shape of an answer instead of truly tallying items, so counts can be wrong. The same caution applies to date comparisons, where dates may be read like text. The safer approach is to use Jev to extract or judge individual facts, then do the counting and date math in ordinary code, which is exact and cheap.
12. How many questions can I ask in one request?
You can ask several questions about the same state in one request. They run in parallel and in isolation, so one answer does not influence another. Public sources say extra questions barely change response time, although longer question text adds some token cost. This makes it practical to ask many small questions and combine the results in code, instead of asking one large, vague question.
13. Do questions in one request affect each other?
No. Each question is evaluated independently against the same state. The answer to one question does not become hidden context for another. This keeps results easier to test and debug. If one judgment truly depends on another result, send a second request after the first answer arrives. Serial calls should reflect real dependencies, not habits carried over from chat models.
14. How do I use confidence with my questions?
Confidence is a value from 0 to 1 for Choice and Score answers. It reflects how concentrated the probabilities are. A winning option with a big lead gives high confidence. A close race gives low confidence. Use it as a second signal. Act automatically on high confidence, review the middle range, and send low confidence to a person. Set thresholds based on the cost of a wrong action.
15. What is a good example of state and questions working together?
A community tool called pi-warden guards a coding agent. Its state holds the user's task, the agent's plan, and the command about to run. Its questions ask whether the action is irreversible, unrelated to the task, different from the plan, and how it relates to the task overall. Code then decides whether to pause the command. The same command can be safe or risky depending on context, which the state provides.
16. How can I use Jev to rerank search results?
Build a state for each candidate that holds the query and the page text. Ask a Noul such as whether the page directly answers the query. Run this for every candidate, then sort by probability and keep the top few. TypeSafe's cookbook reports better ranking than a plain keyword shortlist on a legal retrieval set. This approach saves reading time for the main model, because it only sees pages that survive the filter.
17. Can Jev check whether citations are correct?
It can help with part of the job. A common pattern uses simple code to test whether a quoted phrase appears in the source. For quotes that pass, a Choice question reads the claim and the surrounding section, then picks whether the section supports, contradicts, or says nothing about the claim. Low confidence cases go to a human. This pattern catches quotes that are real but used to support the wrong claim.
18. What are the main weak spots of Jev questions?
TypeSafe's notes list several. Jev reads questions literally. It struggles with counting, arithmetic, and date comparison. Multi-step or indirect questions can reduce accuracy. Large, noisy state can distract it. Adversarial text inside the state can push answers off course. It also cannot write free text. The best defenses are precise criteria, filtered state, math in code, and regular testing on real examples.
19. How should I test my state and questions?
Pick one decision your team already makes and collect about one hundred real examples with trusted human labels. Run Jev on all of them, compare the answers with the labels, and study the misses. Then improve your criteria, filter the state, and run again. One independent test reported that Jev caught six of seven planted defects while a top reasoning model caught all seven, with Jev far faster and cheaper. Expect a similar trade-off and verify it yourself.
20. How can state and questions support platforms like Tosheo?
A generative platform such as Tosheo creates serialized stories, characters, and fictional worlds. Around that creative work, many small judgments appear. A chapter could be the state, with a Choice question about genre. A submission could be the state, with a Noul about rule violations. This is a general design idea and not a claim about Tosheo's internal systems. One tool creates, and Jev-style judging keeps the results organized.
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