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Grok+17 agentsAI App Feature Specification Writer
Transform rough feature ideas into structured, developer-ready product specifications and user stories.
$6.99
AI App Feature Specification Writer
Example session with this skill installed
I want to add a "Save for Later" feature to my e-commerce app. Users should be able to move items from the cart to a wishlist and vice versa. It needs to handle out-of-stock items.
- Read your context and instructions
- Compiled the ai app feature
- Generated the UI component
I have converted your request into a structured feature specification for the "Save for Later" functionality.
Save for Later / Wishlist Sync
User Stories
As a customer, I want to move an item from my cart to a "Save for Later" list, so that I can keep my cart focused on immediate purchases without losing track of products I like.
As a customer, I want to move an item from my "Save for Later" list back to my cart, so that I can complete the purchase when I am ready.
Acceptance Criteria
| ID | Requirement | Given | When | Then |
|---|---|---|---|---|
| AC-01 | Move to Saved | Item is in active cart | User clicks "Save for Later" | Item is removed from cart and added to Saved list |
| AC-02 | Move to Cart | Item is in Saved list | User clicks "Move to Cart" | Item is moved to cart at current price |
| AC-03 | Stock Check | Item is out of stock | User views Saved list | Show "Out of Stock" badge and disable "Move to Cart" |
Edge Cases
Price Changes: The price of a saved item changes while in the list. The UI must reflect the current price, not the price when it was originally added.
Session Expiry: An anonymous user saves items and then logs in. The system must merge the guest saved list with the account saved list.
- Inventory Depletion: An item is moved to the cart but goes out of stock before checkout.
Data Requirements
- SavedItem Entity:
user_id,product_id,variant_id,date_added. - Relationship: Many-to-one mapping between
SavedItemandProduct.
Next steps
- Review the stock-out behavior logic to confirm if users should receive notifications.
- Define if "Save for Later" items should be reserved in inventory (recommended: No).
- Provide the API endpoint patterns if you want a technical task breakdown.
ai-app-feature-specification-writer.tsx
TSX · React component
Example file from a real run - the skill writes it into your workspace.
Connects securely to your tools. The creator never sees your data.
What you get
About this skill
The problem
Vague feature requests and rough ideas lead to scope creep, missed edge cases, and engineering friction. Developers often waste time deciphering intent instead of writing code.
What it does
- Converts rough notes into structured PRDs with technical depth.
- Generates testable user stories and Gherkin-style acceptance criteria.
- Maps out functional requirements, data schemas, and API integration needs.
- Identifies critical edge cases and error states before development starts.
- Structures QA scenarios to ensure implementation matches product goals.
Why this beats prompting it yourself
This skill follows a rigid senior product engineering framework. It forces the identification of permissions, data relationships, and state transitions that generic prompts overlook, ensuring nothing is left to "developer discretion" by mistake.
Use cases
- Creating developer-ready tickets from client feedback or brainstorms.
- Defining MVP scope while documenting future phase requirements.
- Mapping complex state models and permission matrices for new modules.
- Building comprehensive QA test plans for existing feature updates.
Known limitations
Does not make architectural decisions or invent business rules. Requires user input for specific performance targets or security protocols.
How to install
Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.
- 1
Download the ZIP
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- 2
Unzip into your skills folder
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- 3
Ask your agent to use it
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