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baekenough/second-brain15Updated Oct 8, 2026
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product-strategy
YC-style product strategy assessment with forced questions and CEO scope modes — adapted from gstack /office-hours pattern
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SKILL.md (original)
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Product Strategy Assessment
Purpose
Forces rigorous product thinking by applying YC's 6 mandatory questions before any major feature decision. Prevents "build first, think later" anti-pattern.
Usage
/product-strategy "new authentication system"
/product-strategy "API rate limiting redesign"
Workflow
Phase 1: YC Forced Questions
Before any implementation planning, answer ALL 6 questions. Incomplete answers block Phase 2.
| # | Question | Must Answer |
|---|---|---|
| 1 | Who is the user? | Specific persona, not "everyone" |
| 2 | What problem does this solve? | Observable behavior, not assumed need |
| 3 | How do they solve it today? | Current workaround — if none exists, question the need |
| 4 | Why is this solution better? | Measurable improvement, not "it's newer" |
| 5 | What's the smallest version that validates the hypothesis? | MVP scope — ruthlessly cut |
| 6 | How will you know it worked? | Success metric, measurable within 2 weeks |
Phase 2: CEO Scope Mode Assessment
Categorize the feature into one of 4 modes:
| Mode | Signal | Action |
|---|---|---|
| Expansion | Strong user signal + clear gap | Full implementation, invest aggressively |
| Selective | Mixed signals, some demand | Targeted implementation, measure before expanding |
| Hold | Low signal, maintenance only | Keep working, no new investment |
| Reduction | Negative signal, cost > value | Phase out, redirect resources |
Phase 3: Output
Generate structured assessment:
## Product Strategy: {feature}
### YC Assessment
1. User: {answer}
2. Problem: {answer}
3. Current solution: {answer}
4. Why better: {answer}
5. MVP: {answer}
6. Success metric: {answer}
### Scope Mode: {Expansion|Selective|Hold|Reduction}
Rationale: {why this mode}
### Recommendation
{Go / No-Go / Needs more data}
Next step: {specific action}
Integration
| Rule | Interaction |
|---|---|
| R010 | Orchestrator invokes skill; no file writes |
| R015 | Transparent assessment — user sees all reasoning |
Source
Adapted from garrytan/gstack /office-hours + /plan-ceo-review patterns.
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