Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
Do you love cookbooks? Us, too
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Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for CookShelf: Search Cookbooks: map the core Food & Drink workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Do you love cookbooks? Us, too. That's why we created CookShelf, the app that helps you make the most of your cookbook collection, and cook from the books you already own. Got too much zucchini in the summer, and an excess of cabbage in winter? Or are you just trying to find that one Bolognese recipe you love and make every year, but can *never* remember which book it’s in? Quickly find recipes across your cookbooks that use what you already have—no more forgotten vegetables wilting in your crisper drawer. Simply search by ingredient, dish type, or whatever you're craving, and CookShelf shows exactly which cookbook has what you need and what page it's on. CookShelf is built for home cooks who love real cookbooks and real creators. Set a goal for how many cookbook recipes you'll cook this year, track your progress, and look back at everything you've made. Plus, get inspired by what our community is cooking from the books you own. We bridge the gap between physical cookbooks and digital convenience—because the best recipes are already on your shelf. ◆ Instantly search across your cookbooks and thousands of online recipes ◆ Find recipes based on what's in your fridge ◆ See ingredients lists before opening your books ◆ See what people are cooking: browse real cooks from the books already on your shelf—what people made, the notes they left, the little tweaks that made it better ◆ Follow your friends: find the people whose cooking you trust and follow along ◆ Track your cooking: bookmark recipes, mark what you've cooked, add photos and notes, and look back at your cooks timeline ◆ Set a cooking goal and watch your progress grow throughout the year ◆ Reduce food waste: use up CSA box ingredients before they spoil ◆ Finally cook from those cookbooks you love but rarely open ◆ 16,000+ cookbooks indexed Join thousands of home cooks who are rediscovering the treasures in their cookbook collections every day. HOW DOES IT WORK? CookShelf includes both a free version and a Premium (paid) subscription. The free version lets you add up to 5 cookbooks and use all of CookShelf's features for those books—search, bookmarking, cooking goals, and tracking. Premium unlocks your full collection: ◆ Add unlimited cookbooks ◆ Search across your entire library and over 15,000 indexed titles You can start a free trial to access Premium. Unless you cancel at least 24 hours before the trial ends, you'll be automatically charged the price shown on the payment screen for your chosen plan. Your CookShelf Premium subscription renews automatically each month or year until you cancel. Canceling disables the automatic renewal, but you'll keep full access through the end of your current period. Deleting the app does not cancel your subscription. Terms of Use: https://www.cookshelf.app/terms Privacy: https://www.cookshelf.app/privacy
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These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Assumption to check: Limited search filters for specific dietary needs
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of user-generated content
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No offline access for saved cookbooks
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited social features
Validate with people who use this workflow before building.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.