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magnus919_agent-skills/yc-weekly-growth-compass/references/growth-compass-framework.md
Magnus Hedemark d8a11c2a4b Add yc-default-alive-calculator and yc-weekly-growth-compass skills
Two research-grounded entrepreneurial tools based on Paul Graham's Y Combinator
frameworks, with companion CLI scripts and extensive reference material.

yc-default-alive-calculator:
- Paul Graham's 'Default Alive / Default Dead' framework as a deterministic CLI
- Month-by-month financial projection engine with growth decay modeling
- Burn multiple analysis, lever identification, and actionable verdict
- Zero external dependencies (Python 3.9+ stdlib only)
- 2 reference docs (framework deep-dive, fundraising context)

yc-weekly-growth-compass:
- Paul Graham's 'Startup = Growth' framework as an operational weekly tool
- Single-period and time-series growth rate computation
- YC benchmark classification (1% concerning -> 10%+ outstanding)
- Compound growth projections, doubling time, and decision compass
- Zero external dependencies (Python 3.9+ stdlib only)
- 2 reference docs (framework essay breakdown, compound growth table)

Both skills follow the Agent Skills open format (agentskills.io spec v1.0).
2026-06-13 14:53:50 -04:00

6.5 KiB

Growth Compass — Paul Graham's "Startup = Growth" Framework

Origin

The essay "Startup = Growth" was published in September 2012. It is arguably the most important single essay Paul Graham wrote about Y Combinator's philosophy — the framework from which everything else follows.

The Central Thesis

"A startup is a company designed to grow fast. Being newly founded does not in itself make a company a startup. Nor is it necessary for a startup to work on technology, or take venture funding, or have some sort of 'exit.' The only essential thing is growth. Everything else we associate with startups follows from growth."

This reframing was radical: a restaurant, a barbershop, a consulting firm are not startups — even if they're newly founded. They're not designed for rapid growth. A startup is distinguished not by its industry, age, or funding status, but by its growth trajectory.

Key Concepts

Growth Rate is the Only Metric That Matters

"If there's one number every founder should always know, it's the company's growth rate. That's the measure of a startup. If you don't know that number, you don't even know if you're doing well or badly."

YC measures growth per week, not per month. The reasoning:

  1. The batch is only 11 weeks — monthly data gives you only 2-3 data points
  2. Weekly measurement forces faster iteration
  3. The feedback loop is tighter — you know within days whether something worked

The YC Growth Benchmarks

Weekly Growth Assessment Implication
5-7% Good Solid trajectory
10% Exceptional Breakout company potential
1% Concerning Haven't figured out what you're doing

Graham's key observation: small variations in growth rate produce qualitatively different outcomes.

"A company that grows at 1% a week will grow 1.7x a year, whereas a company that grows at 5% a week will grow 12.6x. A company making $1000 a month (a typical number early in YC) and growing at 1% a week will 4 years later be making $7900 a month, which is less than a good programmer makes in salary in Silicon Valley. A startup that grows at 5% a week will in 4 years be making $25 million a month."

Growth as a Compass

The most operational insight: treat growth rate as the single decision metric.

"Focusing on hitting a growth rate reduces the otherwise bewilderingly multifarious problem of starting a startup to a single problem. You can use that target growth rate to make all your decisions for you; anything that gets you the growth you need is ipso facto right."

This turns startup building into an optimization problem. Programmers will recognize this pattern — it's the same satisfying narrow focus as optimizing code.

Growth Rate as Idea Discovery

Perhaps the most surprising claim: optimizing for growth can discover the idea itself.

"You can use the need for growth as a form of evolutionary pressure. If you start out with some initial plan and modify it as necessary to keep hitting, say, 10% weekly growth, you may end up with a quite different company than you meant to start."

The Three Phases of Startup Growth

Phase 1: Slow/no growth — figuring out what to do
Phase 2: Rapid growth (the ascent) — product-market fit, scaling
Phase 3: Slowdown — market saturation, internal limits

The phase that defines the startup is Phase 2. Its slope (growth rate) and length determine how big the company will become.

From the Essay (Key Quotes)

On user acquisition

"You should take extraordinary measures not just to acquire users, but also to make them happy."

On compound growth

"If you're really getting a constant number of new customers every month, you're in trouble, because that means your growth rate is decreasing."

On the value proposition

"For startups, growth is a constraint much like truth. When Richard Feynman said that the imagination of nature was greater than the imagination of man, he meant that if you just keep following the truth you'll discover cooler things than you could ever have made up."

How YC Operationalizes This

During the Batch

  1. Week 1: Founders establish a baseline metric and set a target growth rate
  2. Weekly check-ins: Partners ask "what's your growth rate?" — not "how are you feeling?"
  3. Growth as the only goal: If you hit your number, you had a good week. Nothing else matters.
  4. Office hours focus: Conversations center on what will move the growth needle

As a Founder's Habit

The weekly routine Graham recommends:

  • Monday: Set this week's growth target
  • Daily: Evaluate every decision against "does this serve the growth target?"
  • Friday: Measure actual growth. If you hit it, celebrate. If you missed, be alarmed.
  • Weekend: Let the miss marinate. Come back Monday ready to adjust.

Historical Impact

"Startup = Growth" crystallized a philosophy that was already implicit in YC's operations but had never been explicitly articulated. Before this essay, the startup world was full of fuzzy advice about passion, vision, and disruption. After it, the conversation shifted to concrete metrics and growth loops.

This essay is directly responsible for:

  • The obsession with growth rates in modern venture capital
  • The "growth at all costs" philosophy (and its subsequent critique)
  • The emphasis on rapid iteration and short feedback loops
  • The psychological framing of startup building as an optimization problem

Limitations and Critiques

  1. Growth isn't everything — A company growing 10% weekly can still be a bad business (high churn, negative unit economics, toxic culture)
  2. The metric chosen matters — Users ≠ revenue. Signups ≠ active users. Growth in the wrong metric is misleading.
  3. Context dependency — Hardware, biotech, and deep tech startups cannot iterate weekly. The framework works best for software.
  4. The local maxima problem — Hyper-optimizing for growth can lead startups up the wrong hill, building for metrics that don't translate to sustainable value.

Companion Readings