Skill

product-development

Guides end-to-end iOS/macOS app product development from idea validation and market research through PRDs, architecture/UX specs, implementation guides, testing, to App Store release.

iOS

Swift

SwiftUI

mobile

design

Install

npx claudepluginhub joshuarweaver/cascade-code-languages-misc-1 --plugin rshankras-claude-code-apple-skills

Tool Access

This skill is limited to using the following tools:

ReadWriteGlobGrepWebFetchWebSearchAskUserQuestion

Preview

Comprehensive product development guidance for iOS/macOS apps. This skill orchestrates the entire product lifecycle from idea validation to App Store release.

Supporting Assets

WORKFLOW.mdcompetitive-analysis/examples/analysis-output.jsonidea-generator/examples/idea-shortlist.jsonmarket-research/examples/market-analysis.jsonproduct-agent/REFERENCE.mdproduct-agent/examples/discovery.jsonproduct-agent/examples/usage-patterns.md

SKILL.md

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Stats

Stars215

Forks17

Last CommitFeb 27, 2026

Actions

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Product Development Expert

Comprehensive product development guidance for iOS/macOS apps. This skill orchestrates the entire product lifecycle from idea validation to App Store release.

When This Skill Activates

Use this skill when the user:

Has an app idea and wants to validate it
Needs market research or competitive analysis
Wants to generate product specifications
Needs architecture or UX design documents
Is preparing for App Store submission
Wants to plan beta testing or TestFlight strategy
Needs localization strategy or market expansion planning
Wants end-to-end product planning

Available Modules

Read relevant module files based on the user's needs:

Phase 0: Idea Discovery

idea-generator/ Brainstorm and rank app ideas via 5 lenses.

Developer profile elicitation (skills, interests, constraints)
Five brainstorming lenses (skills, problem-first, technology-first, market gap, trend-based)
Feasibility filtering and scoring
Ranked shortlist of 3-5 ideas with next_step commands

Discovery & Validation

product-agent/ AI-powered product discovery and validation.

Idea validation and assessment
MVP scoping
Market opportunity analysis

market-research/ Deep market analysis.

Market sizing (TAM/SAM/SOM)
Growth trends and maturity
Entry barriers and distribution channels
Revenue potential

competitive-analysis/ Competitor deep dive.

Feature comparison matrices
Pricing analysis
Strengths/weaknesses
Differentiation opportunities

Specification Generation

prd-generator/ Product Requirements Document.

Features and user stories
Acceptance criteria
Success metrics

architecture-spec/ Technical architecture.

Architecture pattern selection
Tech stack decisions
Data models
App structure

ux-spec/ UI/UX specifications.

Wireframes and user flows
Design system definition
Interaction patterns

implementation-guide/ Development roadmap.

Step-by-step instructions
Pseudo-code examples
Implementation priorities

test-spec/ QA and testing strategy.

Unit test coverage
UI testing plan
Accessibility testing
Beta testing strategy

release-spec/ App Store preparation.

Submission guide
Asset requirements
Privacy compliance
Marketing strategy

Pre-Launch

beta-testing/ TestFlight beta program strategy and feedback collection.

Internal vs. external testing cohort management
Beta tester recruitment and incentive strategies
Feedback collection methodology (in-app, surveys, interviews)
Signal vs. noise framework for interpreting feedback
Go/no-go launch decision framework

localization-strategy/ Market prioritization and localization planning.

Language tier recommendations by app category
Minimum viable localization levels (metadata-only to full)
Translation workflow with Xcode String Catalogs
Cultural adaptation beyond translation
Localized ASO strategy

Orchestration

implementation-spec/ Master orchestrator.

Generates complete specification package
Coordinates all role-based agents
End-to-end spec generation

WORKFLOW.md Product development workflow guide.

How to Use

Identify where user is in product lifecycle
Read relevant module SKILL.md for detailed process
Generate requested specifications
Save outputs to appropriate files

Example Workflows

User doesn't have an idea yet:

Use idea-generator/ to brainstorm and rank ideas
Pick top idea from shortlist
Run product-agent/ to validate the idea
Continue with market research and specs

User has new app idea:

Use product-agent/ for initial validation
Run market-research/ for market sizing
Run competitive-analysis/ for competitor insights
Generate PRD with prd-generator/

User wants full spec package:

Use implementation-spec/ orchestrator
It coordinates all spec generators
Produces complete documentation set