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
日腳萬年曆 - 十三行作品
「日腳萬年曆 - 十三行作品」專為玄學愛好者與專業人士設計，提供1850至2150年間的詳盡日腳資料和豐富的傳統中國曆法資訊。在古時，由於交通與醫療資訊的限制，人們常將疾病與不幸事件歸咎於超自然因素。查日腳，即是透過天干地支來查找撞邪的原因及相應的病理症狀，這在當時社會中是解決問題的重要方式。現今，儘管科技和資訊發達，仍有許多現象難以用常規科學解釈，查日腳在這些情況下仍顯示出獨特的價值。
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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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What's included15 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for 日腳萬年曆 - 十三行作品: map the core Reference 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
Include social sharing and event reminders.
Assumption to check: Limited user engagement features
Validate with people who use this workflow before building.
Hypothesis 2
Add a robust search feature for events and dates.
Assumption to check: No comprehensive search function
Validate with people who use this workflow before building.
Hypothesis 3
Introduce user preferences for calendar views and notifications.
Assumption to check: Lack of personalization options
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
「日腳萬年曆 - 十三行作品」專為玄學愛好者與專業人士設計，提供1850至2150年間的詳盡日腳資料和豐富的傳統中國曆法資訊。在古時，由於交通與醫療資訊的限制，人們常將疾病與不幸事件歸咎於超自然因素。查日腳，即是透過天干地支來查找撞邪的原因及相應的病理症狀，這在當時社會中是解決問題的重要方式。現今，儘管科技和資訊發達，仍有許多現象難以用常規科學解釈，查日腳在這些情況下仍顯示出獨特的價值。 主要功能包括： 精確日腳資料：覆蓋1850至2150年，可查詢每日的日腳資料，助您解析未解之謎。 書簽功能：方便用戶標記並回顧重要日期，比較不同日子的日腳。 詳盡的四柱資訊：包括年、月、日、時的干支，並支援早夜子設定。 節氣與公眾假期：清晰顯示當月重要節氣變化和包括中國、香港、台灣、新加坡在內的公眾假期。 靈活的日期轉換：支持西曆與農曆之間的互轉。 多語言介面：提供繁體中文和簡體中文選項，讓更多用戶便利使用。 歡迎提供意見可 Email 到 [email protected] 或在 App Store 留言
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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
react-navigation
axios
@react-native-async-storage/async-storage
react-native-calendars
BUILD KIT DIFFICULTY
Intermediate
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.
