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phuryn/identify-assumptions-existing

기존 제품의 기능 아이디어에 대해 가치, 사용성, 실현 가능성, 실행 가능성 측면에서 위험한 가정을 식별합니다. 다양한 관점의 악마의 변호 사고 방식을 사용합니다. 기능 아이디어를 스트레스 테스트하거나, 위험 평가를 수행하거나, 가정 매핑을 준비할 때 사용하세요.

identify-assumptions-existing란 무엇인가요?

이 스킬은 기존 제품의 기능 아이디어에 내재된 잠재적으로 위험한 가정들을 체계적으로 식별하도록 설계되었습니다. 가치(Value), 사용성(Usability), 실행 가능성(Viability), 실현 가능성(Feasibility)의 네 가지 주요 영역에서 가정을 분석하며, 각 영역에 대해 '악마의 변호사' 관점을 채택하여 편향되지 않은 평가를 제공합니다. 개발자, 제품 관리자, 디자이너가 기능 아이디어를 프로토타입 또는 개발 단계에 투입하기 전에 철저히 검증하는 데 유용합니다. 이 스킬은 CLI 기반 AI 어시스턴트(예: Claude Code)와 호환되며, 사용자가 입력한 기능 설명을 기반으로 구조화된 가정 목록과 위험 수준을 출력합니다.

지원 대상~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/phuryn/pm-skills/tree/main/skills/identify-assumptions-existing

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문서

identify-assumptions-existing은(는) 무엇을 하나요?

기존 제품의 기능 아이디어에 대해 가치, 사용성, 실현 가능성, 실행 가능성 측면에서 위험한 가정을 식별합니다. 다양한 관점의 악마의 변호 사고 방식을 사용합니다. 기능 아이디어를 스트레스 테스트하거나, 위험 평가를 수행하거나, 가정 매핑을 준비할 때 사용하세요.

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

phuryn/ab-test-analysis

Analyze A/B test results with statistical significance, sample size validation, confidence intervals, and ship/extend/stop recommendations. Use when evaluating experiment results, checking if a test reached significance, interpreting split test data, or deciding whether to ship a variant.

phuryn/analyze-feature-requests

Analyze and prioritize a list of feature requests by theme, strategic alignment, impact, effort, and risk. Use when reviewing customer feature requests, triaging a backlog, or making prioritization decisions.

phuryn/ansoff-matrix

Generate an Ansoff Matrix analysis mapping growth strategies across market penetration, market development, product development, and diversification. Use when considering growth options, planning market expansion, or evaluating strategic growth paths.

phuryn/brainstorm-experiments-existing

Design experiments to test assumptions for an existing product — prototypes, A/B tests, spikes, and other low-effort validation methods. Use when validating assumptions, testing feature ideas cheaply, or planning product experiments.

phuryn/brainstorm-experiments-new

Design lean startup experiments (pretotypes) for a new product. Creates XYZ hypotheses and suggests low-effort validation methods like landing pages, explainer videos, and pre-orders. Use when validating a new product idea, creating pretotypes, or testing market demand.

phuryn/brainstorm-ideas-existing

Brainstorm product ideas for an existing product using multi-perspective ideation from PM, Designer, and Engineer viewpoints. Use when generating new feature ideas, brainstorming solutions for an identified opportunity, or ideating with a product trio.

phuryn/brainstorm-ideas-new

Brainstorm feature ideas for a new product in initial discovery from PM, Designer, and Engineer perspectives. Use when starting product discovery for a new product, exploring features for a startup idea, or doing initial ideation.

phuryn/brainstorm-okrs

Brainstorm team-level OKRs aligned with company objectives — qualitative objectives with measurable key results. Use when setting quarterly OKRs, aligning team goals with company strategy, drafting objectives, or learning how to write effective OKRs.

phuryn/business-model

Generate a Business Model Canvas with all 9 building blocks. Use when creating a business model, documenting how a business creates value, or analyzing an existing business model.

phuryn/cohort-analysis

Perform cohort analysis on user engagement data — retention curves, feature adoption trends, and segment-level insights. Use when analyzing user retention by cohort, studying feature adoption over time, investigating churn patterns, or identifying engagement trends.

phuryn/competitive-battlecard

Create sales-ready competitive battlecards comparing your product against a specific competitor — positioning, feature comparison, objection handling, and win/loss patterns. Use when preparing sales teams, creating competitive materials, or responding to 'why not competitor X?'

phuryn/competitor-analysis

Analyze competitors with strengths, weaknesses, and differentiation opportunities. Identifies direct competitors and maps the competitive landscape. Use when doing competitive research, preparing a competitive brief, or finding differentiation opportunities.

phuryn/create-prd

Create a Product Requirements Document using a comprehensive 8-section template covering problem, objectives, segments, value propositions, solution, and release planning. Use when writing a PRD, documenting product requirements, preparing a feature spec, or reviewing an existing PRD.

phuryn/customer-journey-map

Create an end-to-end customer journey map with stages, touchpoints, emotions, pain points, and opportunities. Use when mapping the customer experience, identifying friction points, improving onboarding, or visualizing the user journey.

phuryn/draft-nda

Draft a detailed Non-Disclosure Agreement between two parties covering information types, jurisdiction, and clauses needing legal review. Use when creating confidentiality agreements or preparing an NDA for a partnership.

phuryn/dummy-dataset

Generate realistic dummy datasets for testing with customizable columns, constraints, and output formats (CSV, JSON, SQL, Python script). Use when creating test data, building mock datasets, or generating sample data for development and demos.

phuryn/grammar-check

Identify grammar, logical, and flow errors in text and suggest targeted fixes without rewriting the entire text. Use when proofreading content, checking writing quality, or reviewing a draft.

phuryn/growth-loops

Identify growth loops (flywheels) for sustainable traction. Evaluates 5 loop types: Viral, Usage, Collaboration, User-Generated, and Referral. Use when designing growth mechanisms, building product-led traction, or understanding how growth loops work.

phuryn/gtm-motions

Identify the best GTM motions and tools across 7 motion types: Inbound, Outbound, Paid Digital, Community, Partners, ABM, and PLG. Use when selecting marketing channels, choosing between inbound and outbound strategy, or planning cross-channel campaigns.

phuryn/gtm-strategy

Create a go-to-market strategy covering marketing channels, messaging, success metrics, and launch timeline. Use when planning a product launch, creating a GTM plan from scratch, or defining a launch strategy for a new market.

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