Agent skill · product strategy · borghei
marketplace-advisor
Strategic advisory for two-sided marketplace founders on chicken-and-egg, take rates, liquidity, and network effects. Use when scoping a marketplace idea or scoring health, or mentioning marketplace, take rate, liquidity, or network effects.
Why this skill is useful
Adds a Python script for scoring marketplace health that provides insights not commonly found in general business frameworks.
What it needs
Requires python installed locally. About 3k tokens when loaded. Last updated 2026-07-21. 462 stars on the source repository.
What this skill does
Marketplace Advisor Strategic frameworks for two-sided and multi-sided marketplace founders, operators, and product leaders. Marketplaces have distinctive economics — most ecommerce / SaaS playbooks don't translate. --- Keywords marketplace, two-sided market, three-sided market, multi-sided market, supply, demand, liquidity, take rate, network effects, chicken and egg, GMV, repeat rate, fill rate, supply density --- Clarify First Before scoring, confirm these inputs. If any is unknown or vague, ASK — do not assume: [ ] Measurement unit — whole marketplace or one liquid segment (city/category)? Liquidity beats GMV; a blended global number can hide a broken core (sets what the score actually describes) [ ] Category + take rate — benchmarks vary widely (Etsy ~6.5% vs Uber ~25-30%), so the take-rate-sustainability dimension is meaningless without the category [ ] Supply, demand, and fill rate — drive the liquidity and balance dimensions, usually the binding constraint [ ] Repeat rate — drives repeat-strength; a low repeat often signals off-platform leakage rather than a healthy marketplace Stop rule: ask only the 2-3 that most change the output. If the user says "just draft it," proceed and list your assumptions at the top of the score. Quick Start Scores marketplace health across liquidity, supply/demand balance, take rate sustainability, repeat rate, and network-effect strength. --- Core Workflows Workflow 1: Marketplace Health Diagnostic 1. Capture key metrics: GMV, take rate, supply, demand, fill rate, repeat rate 2. Run: python scripts/marketplacehealthscorer.py metrics.json 3. Identify which dimension is the constraint (usually one of: not enough supply, not enough demand, low repeat, weak liquidity, take rate too high or too low) 4. Plan one focused intervention; don't try to fix all five at once Time Estimate: 2-4 weeks per diagnostic. Workflow 2: Chicken-and-Egg Strategy 1. Read references/marketplacedynamics.md 2. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills borghei/marketplace-advisor