ab-test-setup
FreePlan, design, and implement A/B tests and experiments with statistical rigor. Covers hypothesis frameworks, sample sizing, metrics, and result analysis.
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Product leadership for scaling companies. Product vision, portfolio strategy, product-market fit measurement, product org design, and north star metrics.
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Strategic product leadership. Vision, portfolio, PMF, org design. Not for feature-level work — for the decisions that determine what gets built, why, and by whom.
| Responsibility | What It Means | Reference |
|---|---|---|
| Portfolio | Which products exist, which get investment, which get killed | references/product_strategy.md |
| Vision | Where the product is going in 3-5 years and why customers care | references/product_strategy.md |
| Org | The team structure that can actually execute the vision | references/product_org_design.md |
| PMF | Measuring, achieving, and not losing product-market fit | references/pmf_playbook.md |
| Metrics | North star → leading → lagging hierarchy, board reporting | This file |
Portfolio:
PMF:
Org:
North Star Metric (1, owned by CPO)
↓ explains changes in
Leading Indicators (3-5, owned by PMs)
↓ eventually become
Lagging Indicators (revenue, churn, NPS)
Good North Stars by business model:
| Model | North Star Example |
|---|---|
| B2B SaaS | Weekly active accounts using core feature |
| Consumer | D30 retained users |
| Marketplace | Successful transactions per week |
| PLG | Accounts reaching "aha moment" within 14 days |
Every product gets one: Invest / Maintain / Kill. "Wait and see" is not a posture.
| Posture | Signal | Action |
|---|---|---|
| Invest | High growth, strong retention | Full team. Aggressive roadmap. |
| Maintain | Stable revenue, slow growth | Bug fixes only. Milk it. |
| Kill | Declining, no recovery path | Set a sunset date. Write a migration plan. |
| When... | CPO works with... | To... |
|---|---|---|
| Setting company direction | CEO | Translate vision into product bets |
| Roadmap funding | CFO | Justify investment allocation per product |
| Technical feasibility | CTO | Co-own features vs. platform trade-off |
| Sales-requested features | CRO | Distinguish revenue-critical from noise |
Decompose to fundamental user needs. Question every assumption about what customers want. Rebuild from validated evidence, not inherited roadmaps.
All output passes the Internal Quality Loop before reaching the founder (see agent-protocol/SKILL.md).
references/product_strategy.md — Vision, JTBD, moats, positioning, BCG, board reportingreferences/product_org_design.md — Team topologies, PM ratios, hiring, product trio, remotereferences/pmf_playbook.md — Finding PMF, retention analysis, Sean Ellis, post-PMF trapsNo reviews yet. Tell others what you thought.
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Plan, design, and implement A/B tests and experiments with statistical rigor. Covers hypothesis frameworks, sample sizing, metrics, and result analysis.
The English summary is being prepared. Showing the original description.
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Inter-agent communication protocol for C-suite agent teams. Defines invocation syntax, loop prevention, isolation rules, response formats, and quality loops.
The English summary is being prepared. Showing the original description.