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pm-claude-skills/skills/assumption-mapper/SKILL.md
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mohitagw15856 f3b9d008fe feat: 100 skills milestone — 7 new skills + quality improvements across all 93
New skills added:
- teaching-lesson-plan: structured lesson plans for any subject/audience/setting
- seo-content-brief: complete SEO briefs with intent, competitor gaps, and outline
- media-pitch: story-first journalist pitches with angle development framework
- change-management-plan: stakeholder analysis, comms strategy, adoption metrics
- workshop-facilitation-guide: activity instructions, decision protocols, facilitator moves
- sales-forecasting-model: pipeline model, scenario analysis, assumption log
- tax-planning-checklist: year-end tax planning across income, pension, CGT, reliefs

Quality improvements across all 93 existing skills:
- Standardised description format: "Verb the thing. Use when X. Produces Y."
- Added Required Inputs section to all skills missing it (prompts for missing info)
- Added Quality Checks section to all skills missing it (specific, not generic)
- Fixed broken multiline YAML descriptions
- Removed non-standard frontmatter keys (tool_integration, metadata blocks)

README updated to v6.0.0 with 100-skill count, new skill tables, and article series

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-20 20:52:31 +01:00

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---
name: assumption-mapper
description: "Extract and risk-rate hidden assumptions in a product brief or PRD. Use when asked to review a product brief for assumptions, audit a PRD for risks, find hidden assumptions, validate product plans, or run an assumption analysis. Produces a prioritised assumption map with confidence and impact scores, recommended validation methods, and critical assumption flags."
---
# Assumption Mapper Skill
Surface and prioritize the untested assumptions embedded in any product plan before development begins.
## Required Inputs
Ask the user for these if not provided:
- **Product brief, PRD, or concept description** (even rough notes work)
- **Stage** (concept / discovery / pre-build / post-launch — affects which assumptions matter most)
## Process
1. Read the provided brief, PRD, or concept description
2. Extract assumptions across four categories:
- **Desirability** (do users want this?)
- **Feasibility** (can we build it?)
- **Viability** (will it sustain the business?)
- **Usability** (can users actually use it?)
3. Score each assumption:
- Confidence (1-5): How sure are we this is true?
- Impact (1-5): How badly does the plan fail if this assumption is wrong?
- Priority = Impact Confidence (higher = test first)
4. **Validate completeness** — Ensure at least one assumption per category. If a category is empty, re-read the brief looking specifically for that type.
5. Output a ranked list with recommended validation methods
## Output Structure
### Assumption Map: [Feature/Product Name]
| Assumption | Category | Confidence | Impact | Priority | Validation Method |
|------------|----------|------------|--------|----------|-------------------|
| [assumption] | [type] | [1-5] | [1-5] | [score] | [method] |
#### Critical Assumptions (Impact 4+ and Confidence 2 or below)
[Flagged items with detailed validation recommendations]
#### Top 3 Assumptions to Validate First
[Detailed recommendations including specific research method, estimated effort, and what the result would change]
## Example (Partial)
Input: *"We're building a self-serve onboarding flow to reduce time-to-value for SMB customers."*
| Assumption | Category | Confidence | Impact | Priority | Validation Method |
|------------|----------|------------|--------|----------|-------------------|
| SMB users can complete onboarding without human help | Usability | 2 | 5 | 3 | Unmoderated usability test (n=8) |
| Faster onboarding correlates with higher retention | Viability | 3 | 4 | 1 | Cohort analysis of current onboarding times vs. 90-day retention |
| The current onboarding is the primary reason for slow time-to-value | Desirability | 2 | 4 | 2 | User interviews with recent churned SMB accounts |
## Quality Checks
- [ ] At least one assumption per category (Desirability, Feasibility, Viability, Usability)
- [ ] All Impact 4+ / Confidence 2 assumptions flagged as CRITICAL
- [ ] Each validation method is specific (not just "do research" — name the method and sample size)
- [ ] Priority scores are consistent (Impact Confidence, higher = more urgent)