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Design MVPs, validated learning experiments, and pivot-or-persevere decisions using Build-Measure-Learn. Use when the user mentions "MVP scope", "validated learning", "pivot or persevere", "vanity metrics", "test assumptions", "innovation accounting", "build-measure-learn", "mini
Design MVPs, validated learning experiments, and pivot-or-persevere decisions using Build-Measure-Learn. Use when the user mentions "MVP scope", "validated learning", "pivot or persevere", "vanity metrics", "test assumptions", "innovation accounting", "build-measure-learn", "minimum viable experiment", "should we pivot", "test a business idea cheaply", or "build the smallest version first". Also trigger when deciding what to include in a first version, measuring startup progress, or evaluating whether to change direction on a product bet. Covers innovation accounting and actionable metrics. For 5-day prototype testing, see design-sprint. For customer motivation analysis, see jobs-to-be-done.
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A systematic approach to building startups and launching new products that shortens development cycles and rapidly discovers whether a business model is viable.
Entrepreneurship is a form of management. Success doesn't require a perfect plan or brilliant insight—it requires a systematic process for testing assumptions, learning from customers, and iterating rapidly. Most startups fail not because they couldn't build what they planned, but because they built the wrong thing: treat every plan as a set of hypotheses to falsify, and spend effort to eliminate waste and accelerate validated learning, not to execute a fixed roadmap.
Goal: 10/10. Score a plan, experiment, or metric set by the five Quick Diagnostic rows—1 point each when the answer is yes, 2 points when it is also backed by evidence on the Validation Ladder (Level 3+):
State the current score and the lowest-scoring diagnostic row to fix next.
The fundamental cycle: IDEAS → BUILD (product) → MEASURE (data) → LEARN (knowledge) → back to IDEAS.
Critical insight: Plan the loop backward:
Goal: Minimize total time through the loop.
See references/build-measure-learn.md when planning an experiment—reverse-planning sequence, an experiment-design template, per-product-type loop examples, and the build/vanity-metric loop traps.
Learning what customers really want through experiments on real behavior—not feature requests, surveys, or focus groups (people mispredict their own behavior). Measure what customers do, not what they say, and run experiments that could falsify your assumptions. Vanity wins (downloads, signups without engagement) are not learning.
The Validation Ladder:
| Level | Evidence | Strength |
|---|---|---|
| 1 | "I think customers want this" | Weakest (opinion) |
| 2 | "Customers said they want this" | Weak (stated preference) |
| 3 | "Customers signed up for early access" | Medium (low commitment) |
| 4 | "Customers paid a deposit" | Strong (real commitment) |
| 5 | "Customers are actively using it" | Strongest (revealed preference) |
Target: Level 4-5 before building at scale.
The version of a new product that allows maximum validated learning with the least effort. Not a prototype (technical feasibility), not a beta (quality), not a minimum marketable product—a learning vehicle, often embarrassingly small and low quality, and usually much smaller than you think.
MVP Types:
| Type | What It Is | When to Use | Example |
|---|---|---|---|
| Concierge | Manual service pretending to be automated | Test if solution is valuable | Food on the Table (manual meal planning) |
| Wizard of Oz | Fake automation, manual backend | Test if automation is needed | Zappos (no inventory, bought shoes retail) |
| Smoke test | Landing page + signup, no product | Test demand before building | Dropbox video (explained concept, measured signups) |
| Single feature | One core feature only | Test which feature is most valuable | Twitter (just status updates) |
| Piecemeal | Combine existing tools | Test workflow before custom build | Groupon (WordPress + email) |
Design questions: What's the riskiest assumption? What's the minimum that tests it? How do we measure whether it was validated?
See references/mvp-design.md when choosing and sizing an MVP—seven types in depth, a type-selection decision matrix, lower/upper sizing bounds, and the MVP Design Canvas.
The assumptions that, if wrong, will cause your business to fail. Identify them, prioritize by risk (which failure would be fatal?), and test the riskiest first—never in order of ease.
| Assumption Type | Question | Test Method |
|---|---|---|
| Value hypothesis | Do customers care about this problem? | Smoke test, concierge MVP |
| Growth hypothesis | How will customers discover us? | Channel tests, referral experiments |
| Retention hypothesis | Will customers come back? | Cohort analysis, engagement metrics |
| Monetization hypothesis | Will customers pay? | Pre-orders, pricing tests |
Example—Dropbox: Leap of faith: "people will download and use a file sync tool." Test: explainer video before building scale infrastructure. Result: beta list grew from 5,000 to 75,000 overnight—demand validated.
See references/assumptions.md when mapping and ranking assumptions—the Impact-Uncertainty matrix, a prioritization scoring template, test methods per assumption type, and industry-specific assumption lists.
Measuring progress when traditional metrics fail: revenue and customers start at zero, and vanity metrics look good without driving decisions.
Measure current reality precisely, even if it's zero or embarrassing: conversion funnel (signup → active → retained → paying), engagement (DAU/MAU, session length, features used), economics (CAC, LTV, churn).
Run experiments to improve baseline metrics: A/B test pricing ($9 vs. $19/mo), onboarding completion rates, acquisition channels (SEO vs. paid vs. referral). Each experiment targets a measurable improvement through validated learning.
When tuning stalls, make the evidence-based call (criteria and pivot types below in Pivot or Persevere).
See references/innovation-accounting.md when building the baseline dashboard—funnel, cohort, and economics metric frameworks.
Vanity metrics make you feel good but don't change behavior; actionable metrics drive decisions and clarify cause and effect.
| Vanity | Why It's Bad | Actionable Alternative |
|---|---|---|
| Total signups | Always goes up, no context | % signup → active (conversion rate) |
| Page views | Doesn't indicate value | Time on page, bounce rate |
| Total users | Includes inactive/churned | Active users (DAU, WAU, MAU) |
| Downloads | Doesn't mean usage | DAU/downloads (activation rate) |
| Revenue | Without context | Revenue per cohort, LTV/CAC |
Three characteristics of actionable metrics: actionable (clear cause-and-effect, reproducible), accessible (simple, understood by everyone), auditable (underlying data can be checked).
Example: Vanity: "We have 100,000 users!" Actionable: "Channel X users retain 2x better than channel Y—double down on X."
Cohort analysis: Group users by signup date and track behavior over time—the only way to see whether the product is actually improving.
See references/metrics.md when building a cohort table or choosing what to track—a five-step cohort walkthrough and AARRR (Pirate Metrics) aligned with Lean Startup stages.
A pivot is a structured course correction designed to test a new hypothesis about the product, strategy, or engine of growth.
Pivot when: experiments repeatedly fail to validate hypotheses, metrics stay flat despite iterations, customer feedback contradicts the vision, or progress is too slow for the runway. Persevere when: metrics are improving (even slowly), clear learning is happening, and adjustments move the right direction.
Pivot Types:
| Pivot Type | What Changes | Example |
|---|---|---|
| Zoom-in | Single feature becomes the whole product | Instagram (photo filters from Burbn) |
| Zoom-out | Product becomes a single feature | Flickr (photo-sharing from Game Neverending) |
| Customer segment | Same problem, different customer | Groupon (activism platform → local deals) |
| Customer need | Same customer, different problem | Potbelly (antique store → sandwiches) |
| Platform | App ↔ Platform | YouTube (dating site → video platform) |
| Business architecture | High margin/low volume ↔ low margin/high volume | Salesforce (software → SaaS) |
| Value capture | Monetization model change | Android (paid → free + app revenue) |
| Engine of growth | Viral, sticky, or paid model | Facebook (viral in colleges → paid advertising) |
| Channel | How you reach customers | Salesforce (direct sales → self-service) |
| Technology | Different technology, same solution | Apple (Intel → ARM chips) |
Cadence: Successful startups commonly pivot 1-5 times before product-market fit. Anti-pattern: "pivoting" without validating that the new direction solves the core problem.
See references/pivots.md when the data suggests a pivot—the data-driven pivot signals, a structured pivot-meeting agenda, leading indicators, and the Instagram/Slack/YouTube pivot stories.
How a startup acquires and retains customers sustainably. Pick one engine, optimize it, then consider adding others—running multiple engines simultaneously dilutes focus and learning.
Retention-driven: growth rate = new customer acquisition rate − churn rate. Track churn rate, retention cohorts (30/60/90 days), and DAU/MAU. Fits SaaS, subscriptions, social networks. Strategy: improve the product until natural growth exceeds churn.
Customers bring customers: viral coefficient = (% who invite) × (invites sent) × (% who join); above 1.0 means exponential, self-sustaining growth. Track the coefficient, viral cycle time, and referral attribution. Fits Dropbox, Hotmail, WhatsApp. Strategy: build virality into the product itself.
Spend to acquire: requires LTV > CAC (target LTV/CAC > 3x). Track CAC, LTV, and payback period. Fits e-commerce and traditional businesses. Strategy: optimize until each customer's profit funds acquiring more.
See references/growth-engines.md when picking or tuning an engine—churn-reduction tactics, the K-factor and viral-loop design, LTV/CAC optimization, a channel-economics table, and the product-to-engine matching framework.
Root cause analysis: when a problem occurs, ask "why?" five times, then invest proportionally at every level—not just the symptom.
Example—website went down:
name: lean-startup description: 'Design MVPs, validated learning experiments, and pivot-or-persevere decisions using Build-Measure-Learn. Use when the user mentions "MVP scope", "validated learning", "pivot or persevere", "vanity metrics", "test assumptions", "innovation accounting", "build-measure-learn", "minimum viable experiment", "should we pivot", "test a business idea cheaply", or "build the smallest version first". Also trigger when deciding what to include in a first version, measuring startup progress, or evaluating whether to change direction on a product bet. Covers innovation accounting and actionable metrics. For 5-day prototype testing, see design-sprint. For customer motivation analysis, see jobs-to-be-done.' license: MIT metadata: author: wondelai version: "1.4.0"
--- name: lean-startup description: 'Design MVPs, validated learning experiments, and pivot-or-persevere decisions using Build-Measure-Learn. Use when the user mentions "MVP scope", "validated learning", "pivot or persevere", "vanity metrics", "test assumptions", "innovation accounting", "build-measure-learn", "minimum viable experiment", "should we pivot", "test a business idea cheaply", or "build the smallest version first". Also trigger when deciding what to include in a first version, measuring startup progress, or evaluating whether to change direction on a product bet. Covers innovation accounting and actionable metrics. For 5-day prototype testing, see design-sprint. For customer motivation analysis, see jobs-to-be-done.' license: MIT metadata: author: wondelai version: "1.4.0" --- # Lean Startup Methodology A systematic approach to building startups and launching new products that shortens development cycles and rapidly discovers whether a business model is viable. ## Core Principle **Entrepreneurship is a form of management.** Success doesn't require a perfect plan or brilliant insight—it requires a systematic process for testing assumptions, learning from customers, and iterating rapidly. Most startups fail not because they couldn't build what they planned, but because they built the wrong thing: treat every plan as a set of hypotheses to falsify, and spend effort to eliminate waste and accelerate **validated learning**, not to execute a fixed roadmap. ## Scoring **Goal: 10/10.** Score a plan, experiment, or metric set by the five Quick Diagnostic rows—**1 point each** when the answer is yes, **2 points** when it is also backed by evidence on the Validation Ladder (Level 3+): - **9-10:** every leap-of-faith assumption named and ranked by risk, the riskiest tested by a real MVP, actionable metrics defined, and explicit pivot criteria set before building. - **5-6:** a hypothesis and some MVP exist, but metrics are vanity or pivot criteria are undefined—decisions can't be made from the data. - **≤3:** waterfall thinking—building the full product first, asking customers what they want, or scaling before product/market fit. State the current score and the lowest-scoring diagnostic row to fix next. ## The Build-Measure-Learn Loop The fundamental cycle: **IDEAS → BUILD (product) → MEASURE (data) → LEARN (knowledge) → back to IDEAS.** **Critical insight:** Plan the loop backward: 1. **What do we want to learn?** (hypothesis to test) 2. **How will we know if we learned it?** (metrics) 3. **What's the minimum we can build?** (MVP) **Goal:** Minimize total time through the loop. See [references/build-measure-learn.md](references/build-measure-learn.md) when planning an experiment—reverse-planning sequence, an experiment-design template, per-product-type loop examples, and the build/vanity-metric loop traps. ## Validated Learning Learning what customers really want through experiments on real behavior—not feature requests, surveys, or focus groups (people mispredict their own behavior). Measure what customers *do*, not what they *say*, and run experiments that could falsify your assumptions. Vanity wins (downloads, signups without engagement) are not learning. **The Validation Ladder:** | Level | Evidence | Strength | |-------|----------|----------| | 1 | "I think customers want this" | Weakest (opinion) | | 2 | "Customers said they want this" | Weak (stated preference) | | 3 | "Customers signed up for early access" | Medium (low commitment) | | 4 | "Customers paid a deposit" | Strong (real commitment) | | 5 | "Customers are actively using it" | Strongest (revealed preference) | **Target:** Level 4-5 before building at scale. ## Minimum Viable Product (MVP) The version of a new product that allows maximum validated learning with the least effort. Not a prototype (technical feasibility), not a beta (quality), not a minimum marketable product—a learning vehicle, often embarrassingly small and low quality, and usually much smaller than you think. **MVP Types:** | Type | What It Is | When to Use | Example | |------|------------|-------------|---------| | **Concierge** | Manual service pretending to be automated | Test if solution is valuable | Food on the Table (manual meal planning) | | **Wizard of Oz** | Fake automation, manual backend | Test if automation is needed | Zappos (no inventory, bought shoes retail) | | **Smoke test** | Landing page + signup, no product | Test demand before building | Dropbox video (explained concept, measured signups) | | **Single feature** | One core feature only | Test which feature is most valuable | Twitter (just status updates) | | **Piecemeal** | Combine existing tools | Test workflow before custom build | Groupon (WordPress + email) | **Design questions:** What's the riskiest assumption? What's the minimum that tests it? How do we measure whether it was validated? See [references/mvp-design.md](references/mvp-design.md) when choosing and sizing an MVP—seven types in depth, a type-selection decision matrix, lower/upper sizing bounds, and the MVP Design Canvas. ## Leap-of-Faith Assumptions The assumptions that, if wrong, will cause your business to fail. Identify them, prioritize by risk (which failure would be fatal?), and test the riskiest first—never in order of ease. | Assumption Type | Question | Test Method | |----------------|----------|-------------| | **Value hypothesis** | Do customers care about this problem? | Smoke test, concierge MVP | | **Growth hypothesis** | How will customers discover us? | Channel tests, referral experiments | | **Retention hypothesis** | Will customers come back? | Cohort analysis, engagement metrics | | **Monetization hypothesis** | Will customers pay? | Pre-orders, pricing tests | **Example—Dropbox:** Leap of faith: "people will download and use a file sync tool." Test: explainer video before building scale infrastructure. Result: beta list grew from 5,000 to 75,000 overnight—demand validated. See [references/assumptions.md](references/assumptions.md) when mapping and ranking assumptions—the Impact-Uncertainty matrix, a prioritization scoring template, test methods per assumption type, and industry-specific assumption lists. ## Innovation Accounting Measuring progress when traditional metrics fail: revenue and customers start at zero, and vanity metrics look good without driving decisions. ### 1. Establish the Baseline Measure current reality precisely, even if it's zero or embarrassing: conversion funnel (signup → active → retained → paying), engagement (DAU/MAU, session length, features used), economics (CAC, LTV, churn). ### 2. Tune the Engine Run experiments to improve baseline metrics: A/B test pricing ($9 vs. $19/mo), onboarding completion rates, acquisition channels (SEO vs. paid vs. referral). Each experiment targets a measurable improvement through validated learning. ### 3. Pivot or Persevere When tuning stalls, make the evidence-based call (criteria and pivot types below in **Pivot or Persevere**). See [references/innovation-accounting.md](references/innovation-accounting.md) when building the baseline dashboard—funnel, cohort, and economics metric frameworks. ## Actionable vs. Vanity Metrics Vanity metrics make you feel good but don't change behavior; actionable metrics drive decisions and clarify cause and effect. | Vanity | Why It's Bad | Actionable Alternative | |--------|-------------|------------------------| | **Total signups** | Always goes up, no context | **% signup → active** (conversion rate) | | **Page views** | Doesn't indicate value | **Time on page**, **bounce rate** | | **Total users** | Includes inactive/churned | **Active users** (DAU, WAU, MAU) | | **Downloads** | Doesn't mean usage | **DAU/downloads** (activation rate) | | **Revenue** | Without context | **Revenue per cohort**, **LTV/CAC** | **Three characteristics of actionable metrics:** actionable (clear cause-and-effect, reproducible), accessible (simple, understood by everyone), auditable (underlying data can be checked). **Example:** Vanity: "We have 100,000 users!" Actionable: "Channel X users retain 2x better than channel Y—double down on X." **Cohort analysis:** Group users by signup date and track behavior over time—the only way to see whether the product is actually improving. See [references/metrics.md](references/metrics.md) when building a cohort table or choosing what to track—a five-step cohort walkthrough and AARRR (Pirate Metrics) aligned with Lean Startup stages. ## Pivot or Persevere A pivot is a structured course correction designed to test a new hypothesis about the product, strategy, or engine of growth. **Pivot when:** experiments repeatedly fail to validate hypotheses, metrics stay flat despite iterations, customer feedback contradicts the vision, or progress is too slow for the runway. **Persevere when:** metrics are improving (even slowly), clear learning is happening, and adjustments move the right direction. **Pivot Types:** | Pivot Type | What Changes | Example | |------------|-------------|---------| | **Zoom-in** | Single feature becomes the whole product | Instagram (photo filters from Burbn) | | **Zoom-out** | Product becomes a single feature | Flickr (photo-sharing from Game Neverending) | | **Customer segment** | Same problem, different customer | Groupon (activism platform → local deals) | | **Customer need** | Same customer, different problem | Potbelly (antique store → sandwiches) | | **Platform** | App ↔ Platform | YouTube (dating site → video platform) | | **Business architecture** | High margin/low volume ↔ low margin/high volume | Salesforce (software → SaaS) | | **Value capture** | Monetization model change | Android (paid → free + app revenue) | | **Engine of growth** | Viral, sticky, or paid model | Facebook (viral in colleges → paid advertising) | | **Channel** | How you reach customers | Salesforce (direct sales → self-service) | | **Technology** | Different technology, same solution | Apple (Intel → ARM chips) | **Cadence:** Successful startups commonly pivot 1-5 times before product-market fit. **Anti-pattern:** "pivoting" without validating that the new direction solves the core problem. See [references/pivots.md](references/pivots.md) when the data suggests a pivot—the data-driven pivot signals, a structured pivot-meeting agenda, leading indicators, and the Instagram/Slack/YouTube pivot stories. ## The Three Engines of Growth How a startup acquires and retains customers sustainably. **Pick one engine, optimize it, then consider adding others**—running multiple engines simultaneously dilutes focus and learning. ### 1. Sticky Engine of Growth Retention-driven: `growth rate = new customer acquisition rate − churn rate`. Track churn rate, retention cohorts (30/60/90 days), and DAU/MAU. Fits SaaS, subscriptions, social networks. Strategy: improve the product until natural growth exceeds churn. ### 2. Viral Engine of Growth Customers bring customers: `viral coefficient = (% who invite) × (invites sent) × (% who join)`; above 1.0 means exponential, self-sustaining growth. Track the coefficient, viral cycle time, and referral attribution. Fits Dropbox, Hotmail, WhatsApp. Strategy: build virality into the product itself. ### 3. Paid Engine of Growth Spend to acquire: requires `LTV > CAC` (target LTV/CAC > 3x). Track CAC, LTV, and payback period. Fits e-commerce and traditional businesses. Strategy: optimize until each customer's profit funds acquiring more. See [references/growth-engines.md](references/growth-engines.md) when picking or tuning an engine—churn-reduction tactics, the K-factor and viral-loop design, LTV/CAC optimization, a channel-economics table, and the product-to-engine matching framework. ## The Five Whys Root cause analysis: when a problem occurs, ask "why?" five times, then invest proportionally at every level—not just the symptom. **Example—website went down:** 1. **Why?** Server ran out of
Skill source recorded
Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.
Review before install: Avoid automatic install
License: MIT
Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.
Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.
Version reported in registry metadata; check source releases before relying on it.
Quality
75/100
Strong
Trust
75/100
This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.
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"manifest_url": "https://www.openagentskill.com/api/registry/manifest/wondelai-lean-startup"
},
"trust": {
"score": 83,
"label": "Strong shortlist",
"version": "trust-score-v4",
"install_policy": "block",
"evidence": {
"stars": "2.2K GitHub stars",
"repoActivity": "2.2K stars, 228 forks",
"lastPushed": "12d since push",
"license": "MIT",
"repository": "https://github.com/wondelai/skills/tree/main/lean-startup",
"install": "npx skills add wondelai/skills --skill lean-startup",
"installSafety": "standard package or runtime install path",
"permissionSurface": "filesystem or document access",
"documentation": "Strong README/SKILL.md context",
"agentOutcomes": "No agent outcome data yet"
},
"outcome_evidence": {
"total": 0,
"successes": 0,
"failures": 0,
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"success_rate": null,
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"avg_output_quality": null,
"production_outcomes": 0,
"last_outcome_at": null,
"label": "No agent outcome data yet"
},
"auto_install": {
"allowed": false,
"sandbox_required": true,
"reason": "Do not auto-install. Inspect the source, dependencies, and permission surface first."
},
"best_for": [
"design-creative",
"agent-skill"
],
"known_risks": [
"AI review approval is missing",
"Financial research output is not financial advice; require human review before any live investment decision.",
"This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.",
"Quality score needs review",
"Review status: AI review approval is missing"
]
},
"agent_proven": {
"version": "agent-proven-v1",
"score": 0,
"tier": "unproven",
"label": "Needs first agent run",
"summary": "No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.",
"metrics": {
"totalOutcomes": 0,
"successfulOutcomes": 0,
"failedOutcomes": 0,
"installAttempts": 0,
"installSuccessRate": null,
"successRate": null,
"recentSuccessRate": null,
"recentFailureRate": null,
"riskBlocked": 0,
"setupRequired": 0,
"notRelevant": 0,
"avgOutputQuality": null,
"avgTimeToUsefulMs": null,
"productionOutcomes": 0,
"humanReviewRequired": 0,
"uniqueAgents": 0,
"lastOutcomeAt": null
},
"signals": [],
"penalties": [
"No real agent outcome evidence yet"
]
},
"audit": {
"score": 84,
"risk_level": "risky",
"risk_label": "Risky",
"warnings": [
"Financial research output is not financial advice; require human review before any live investment decision",
"Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required",
"AI review approval is missing",
"Financial research output is not financial advice; require human review before any live investment decision.",
"This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.",
"Quality score needs review",
"Review status: AI review approval is missing"
]
},
"safety_gate": {
"tier": "blocked",
"label": "Blocked for auto-install",
"auto_install_policy": "block",
"auto_install_allowed": false,
"human_review_required": true,
"blocked": true,
"recommended_action": "Do not auto-install. Inspect the source, dependencies, and permission surface first."
},
"quality": {
"score": 75,
"label": "Strong"
},
"supply": {
"track": "Design and creative production",
"scenario": "Design and creative",
"maintenance": "12d since push",
"risk": "Risky"
},
"alternative_skills": [
{
"slug": "anthropic-frontend-design",
"name": "Frontend Design",
"url": "https://www.openagentskill.com/skills/anthropic-frontend-design",
"stars": 177672,
"install_command": "npx skills add anthropics/skills --skill frontend-design",
"trust_score": 91,
"audit_score": 93
},
{
"slug": "design-taste-frontend",
"name": "Taste Skill: Anti-Slop Frontend",
"url": "https://www.openagentskill.com/skills/design-taste-frontend",
"stars": 89359,
"install_command": "npx skills add Leonxlnx/taste-skill --skill design-taste-frontend",
"trust_score": 94,
"audit_score": 96
},
{
"slug": "emilkowalski-apple-design",
"name": "Apple Design",
"url": "https://www.openagentskill.com/skills/emilkowalski-apple-design",
"stars": 34452,
"install_command": "npx skills@latest add emilkowalski/skills",
"trust_score": 93,
"audit_score": 94
}
],
"do_not_use_when": [
"teams that need a vendor-supported SLA",
"high-compliance environments without internal security review",
"No OpenAgentSkill engagement data yet",
"Audit risk risky exceeds max_risk=medium",
"Financial research output is not financial advice; require human review before any live investment decision",
"Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required",
"AI review approval is missing",
"Financial research output is not financial advice; require human review before any live investment decision."
],
"agent_contract": {
"task_input": "Use lean-startup in an agent workflow",
"recommended_action": "Do not auto-install. Inspect the source, dependencies, and permission surface first.",
"install_policy": "block",
"minimum_review_before_use": [
"Trust: 83/100 Strong shortlist",
"Audit: 84/100 Risky",
"Safety: 64/100 Avoid automatic install",
"Review repository, license, install command, and permission surface before production use."
],
"expected_agent_output": {
"selected_skill": "wondelai-lean-startup (lean-startup)",
"install_command": "npx skills add wondelai/skills --skill lean-startup",
"risk_summary": "Risky; Blocked for auto-install; Review before production",
"verification_result": "Report the smallest successful task, files touched, warnings, and any missing setup."
}
},
"outcome_feedback": {
"endpoint": "https://www.openagentskill.com/api/agent/outcome",
"method": "POST",
"requires_resolve_event_id": true,
"event_id_source": "Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.",
"expected_outcomes": [
"success",
"failed",
"not_relevant",
"blocked_by_risk",
"setup_required"
],
"payload_template": {
"event_id": "<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>",
"skill_slug": "wondelai-lean-startup",
"task": "Use lean-startup in an agent workflow",
"agent": "codex",
"outcome": "success",
"install_used": true,
"risk_blocked": false,
"setup_required": false,
"task_success": true,
"output_quality": 4,
"error_type": null,
"human_review_required": false,
"workspace": "sandbox",
"time_to_useful_ms": 120000,
"notes": "Report the smallest successful task, setup friction, files touched, and risk notes."
}
},
"endpoints": {
"web": "https://www.openagentskill.com/skills/wondelai-lean-startup",
"api": "https://www.openagentskill.com/api/agent/skills/wondelai-lean-startup",
"audit": "https://www.openagentskill.com/skills/wondelai-lean-startup/audit",
"eval": "https://www.openagentskill.com/api/agent/evals?slug=wondelai-lean-startup&task=Use%20lean-startup%20in%20an%20agent%20workflow&max_risk=medium",
"resolve": "https://www.openagentskill.com/api/agent/resolve?task=Use%20lean-startup%20in%20an%20agent%20workflow&agent=codex&max_risk=medium",
"receipt": "https://www.openagentskill.com/api/agent/receipt?task=Use%20lean-startup%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text",
"install": "https://www.openagentskill.com/api/skills/wondelai-lean-startup/install",
"manifest": "https://www.openagentskill.com/api/registry/manifest/wondelai-lean-startup"
}
}Listing source
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Sandbox only
Audit
84/100
Risky
Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.