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.
App Overview
GitHub
There’s a lot you can do on GitHub that doesn’t require a complex development environment – like sharing feedback on a design discussion, or reviewing a few lines of code
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
36,915 ratings · Top 5%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for GitHub: map the core Developer Tools workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Simplify onboarding with guided tutorials.
Assumption to check: Complex UI can be overwhelming for new users
Validate with people who use this workflow before building.
Hypothesis 2
Implement a faster, indexed search feature.
Assumption to check: Search functionality can be slow with large repositories
Validate with people who use this workflow before building.
Hypothesis 3
Add local data caching for better offline access.
Assumption to check: Limited offline capabilities
Validate with people who use this workflow before building.
Hypothesis 4
Provide customizable notification settings.
Assumption to check: In-app notifications can be intrusive
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
There’s a lot you can do on GitHub that doesn’t require a complex development environment – like sharing feedback on a design discussion, or reviewing a few lines of code. GitHub for iOS lets you move work forward wherever you are. Stay in touch with your team, triage issues, and even merge, right from the app. We’re making these tasks easy for you to perform, no matter where you work, with a beautifully native experience. You can use GitHub for iOS to: • Browse your latest notifications • Read, react, and reply to Issues and Pull Requests • Review and merge Pull Requests • Organize Issues with labels, assignees, projects, and more • Browse your files and code • Discover new and trending repositories ——— Terms of Service: https://docs.github.com/en/github/site-policy/github-terms-of-service Privacy Policy: https://docs.github.com/en/github/site-policy/github-privacy-statement
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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BUILD KIT DIFFICULTY
Advanced
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.
