Vault test builder
Airport, hotel, restaurant, shopping, instruction following, and object vocabulary. The generated prompt bank is now a product surface: choose an angle, pick source-language traps, and review a draft test that can become a funnel, challenge, or catalog diagnostic.
Product angles
Pick the hook first. The builder keeps the same 12k database underneath, but changes the question families and preferred mechanics.
Makes a test feel like useful life simulation instead of a school quiz.
Level check
A mixed diagnostic from grammar, vocabulary, naturalness, listening, and real-life prompts.
Sound natural
Fast phrase traps, collocations, emotion context, scene inference, and native-sounding choices.
Business-ready
Emails, client-safe tone, meeting subtext, deadlines, and business collocations.
Speak better
Minimal pairs, read-aloud prompts, fast speech, and practical spoken responses.
Exam pressure
Academic reading, listening, writing, inference, and task-rubric prompts.
Travel survival
Airport, hotel, restaurant, shopping, instruction following, and object vocabulary.
Source language
Mechanics
Family mix
Visual and simulation mechanics 20
Skill mix
Real life 20
Review status
generated-review-candidate 20
Write a short natural response.
Use as a rubric-scored prompt or coach-review task.
Diagnostic signal
Word crafter response produces a real life signal at B1.
Conversion hook
Short, diagnostic, and reusable across tests, funnels, and practice loops.