Should-I-build
Multi-agent market validation for Claude Code and Cursor. Verdict is BUILD, CONDITIONAL, PIVOT, or STOP, with receipts.
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Claude Code
Cursor
Codex CLI
GitHub Copilot
Gemini CLI+20 moreClaude CodeCursorCodex CLIGitHub CopilotGemini CLI
OpenClaw
Manus
Grok+17 agentsShould-I-build
Example session with this skill installed
/sib A platform for independent bookstores to offer local 2-hour delivery by crowdsourcing bike couriers. Target: Urban book buyers who hate Amazon but want speed.
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- Compiled the should-i-build
I have completed the market validation for the Local Book Courier platform. I deployed 6 analysts to review community signals, search demand, and competitive moats, followed by a verification of delivery cost claims.
Should I Build? — Local Book Courier
Verdict: PIVOT — 72% confidence
Scorecard
| Pillar | /5 | Key Evidence (with source) |
|---|---|---|
| Problem Clarity | 4 | High intent for "buy local" (Reddit/r/books) |
| Target Customer | 3 | Urban millennials; high frequency but price sensitive |
| Demand Signal | 2 | Low search volume for "book delivery" vs "food delivery" |
| Differentiation | 4 | Hyper-local speed beats IndieBound shipping times |
| Execution Feasibility | 2 | Logistics of crowdsourced bike couriers is high-churn |
| Distribution Readiness | 3 | High bookstore density in target zips (NYC/SF) |
| Monetization Viability | 1 | Margin on books (<30%) cannot sustain $5-8 delivery fees |
Total: 19/35
Top Green Flags
- Strong community sentiment against Amazon logistics among heavy readers.
- 40% growth in independent bookstore sales in urban hubs over 24 months.
- Successful proxy: "Milkman" model for local groceries in London.
Top Red Flags
| Flag | Severity |
|---|---|
| Unit Economics | KILL |
| Courier Availability | HIGH |
Kill Condition
Painkiller test
FAIL — While users like the idea, they are unwilling to pay a delivery fee that exceeds the book's profit margin. It is a "nice to have," not a "need to have."
Claim Verification
| Claim | Status |
|---|---|
| Bookstore margin > 40% | FALSE |
| $5 courier fee sustainability | UNVERIFIABLE |
Recommended Next Experiment
Test a "Subscription Hub" model where 5-10 stores share one full-time driver to lower per-delivery costs.
Comparable Companies
- Bookshop.org (Validated local intent)
- Flashbox (Last-mile logistics proxy)
Evidence Gaps
- Exact churn rate of bike couriers in winter months.
- Bookstore willingness to share customer data for the platform.
Next steps
- Review the Unit Economics flag; the current model loses $2.50 per order.
- Interview 5 local bookstore owners regarding "shared delivery" overhead.
- Run a landing page test specifically targeting the "Subscription Hub" pivot.
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About this skill
Multi-agent market validation for Claude Code and Cursor. Verdict is BUILD, CONDITIONAL, PIVOT, or STOP, with receipts.
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