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
CBS Sports Fantasy
CBS Sports Fantasy: Manage
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
254,697 ratings · Top 15%
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 included18 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 CBS Sports Fantasy: map the core Sports 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
Allow users to customize team logos and colors.
Assumption to check: Limited customization for fantasy teams
Validate with people who use this workflow before building.
Hypothesis 2
Provide a more detailed stats breakdown and visualizations.
Assumption to check: Difficulty in tracking player stats
Validate with people who use this workflow before building.
Hypothesis 3
Implement a more reliable notification system for match updates.
Assumption to check: Inconsistent notifications for game updates
Validate with people who use this workflow before building.
Hypothesis 4
Simplify navigation to enhance user experience.
Assumption to check: Complex navigation structure
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
CBS Sports Fantasy: Manage. Compete. Win. • Get the all-new CBS Sports Fantasy App with enhanced tools to run your football, baseball, basketball and hockey leagues and teams like a pro with instant scoring, deep player data and exclusive access to industry-leading fantasy experts. MANAGE YOUR TEAM Take full control of your roster, anytime, anywhere. • Draft on the go with support for Standard, Extended, and Salary Cap drafts • Set lineups, add/drop players, and propose, track, and accept trades • View league standings, power rankings, and draft results • Dive into detailed player profiles with stats, projections, and matchup insights • Access league settings and team information with ease TRACK YOUR SCORE Stay locked into every point as it happens. • Fast, accurate live scoring with the Gametracker • Real-time matchup projections powered by SportsLine • Weekly matchup recaps to break down the action GET EXPERT FANTASY ADVICE Make smarter decisions with insights you can trust. • Player rankings from CBS Sports Fantasy experts • Up to the minute fantasy articles, videos, and podcasts • Depth charts, roster trends, and player projections • Breaking news, injury updates, and performance forecasts RUN YOUR LEAGUE Everything commissioners need in one place. • Set up and customize your fantasy draft • Invite friends via text, email, or social media Download CBS Sports Fantasy and start building a championship team today. Privacy Policy - https://privacy.paramount.com/policy Your Privacy Choices - https://privacy.paramount.com/app-donotsell Minors' Privacy Policy - https://privacy.paramount.com/childrens California Notice - https://privacy.paramount.com/en/policy#additional-information-us-states
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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
Axios
React Navigation
Zustand
BUILD KIT DIFFICULTY
Expert
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.
