power-of-one

power-of-one is a skill for Claude Code, Codex from ace3000chao/book2startup. It costs 93 tokens per session (2,478 once invoked), scanned A, original, MIT.

A financial planning tool that examines seven levers affecting cash: price, sales volume, direct costs, operating costs, customer payments, inventory, and supplier payments.

In plain words
What is it for?
Use it when considering price changes, cost reductions, faster collections, lower inventory, or changes to supplier-payment timing.
Why use it?
It replaces guesswork with a way to compare which small financial changes could improve cash flow most. Cash flow is the timing of money entering and leaving a business.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it when considering price changes, cost reductions, faster collections, lower inventory, or changes to supplier-payment timing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ace3000chao/book2startup/power-of-one
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add ace3000chao/book2startup --skill power-of-one
Clone the repo
git clone --depth 1 https://github.com/ace3000chao/book2startup

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for power-of-one

README.md
[![agentmods](https://agentmods.dev/badge/skills/ace3000chao/book2startup/power-of-one/github.svg)](https://agentmods.dev/skills/ace3000chao/book2startup/power-of-one)
Your own site
<a href="https://agentmods.dev/skills/ace3000chao/book2startup/power-of-one"><img src="https://agentmods.dev/badge/skills/ace3000chao/book2startup/power-of-one/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for power-of-one

Your own site · 80×15
<a href="https://agentmods.dev/skills/ace3000chao/book2startup/power-of-one"><img src="https://agentmods.dev/badge/skills/ace3000chao/book2startup/power-of-one.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 93 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,478 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00093 $0.02478
Opus 5 $0.00046 $0.01239
Sonnet 5 $0.00019 $0.00496
Haiku 4.5 $0.00009 $0.00248

Measured 11d ago against content hash 7e94ed530424, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

power-of-one scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

ScalingUp-skills/power-of-one/SKILL.md · 183 lines

How it starts

The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.

The Power of One 七大财务杠杆

R — 原文 (Reading)

"The 7 main financial levers available to managers to improve cash and returns in the business are: 1. Price 2. Volume 3. Cost of goods sold/direct costs 4. Operating expenses 5. Accounts receivable 6. Inventory/WIP 7. Accounts payable."

— Verne Harnish, Scaling Up, 第14章


I — 方法论骨架 (Interpretation)

"Power of One"工具让你量化每个财务杠杆变化1%对现金的影响。

核心思想: 大多数管理者凭直觉做财务决策:"我们提价5%应该没问题吧?"但他们不知道这5%具体能为公司带来多少额外现金。Power of One让每个财务杠杆的Impact变得可计算、可比较、可排序。

七大杠杆分为三类:

收入端杠杆(增加现金进来)

  1. Price(价格) — 提价或降价
  2. Volume(销量) — 卖更多或卖更少

成本端杠杆(减少现金出去) 3. Cost of Goods Sold(销货成本) — 降低原材料/直接人工 4. Operating Expenses(运营费用) — 降低管理费用/营销费用

周转端杠杆(加速现金流动) 5. Accounts Receivable(应收账款) — 更快收回客户欠款 6. Inventory/WIP(库存/在制品) — 减少库存积压 7. Accounts Payable(应付账款) — 更慢支付供应商(但不要破坏关系)

Power of One的计算: 工具会计算每个杠杆变动1%(或天数-1)带来的具体现金改善。比如:

  • 提价1% → 增加$50,000现金/年
  • 收款加快1天 → 释放$30,000现金
  • 库存降低1天 → 释放$20,000现金

A1 — 书中的应用 (Past Application)

案例1: 价格杠杆的戏剧性效果

  • 问题: 企业通常害怕提价,担心失去客户
  • 方法论的使用: 作者展示了一个典型案例——价格提升1%往往带来数倍于销量提升1%的利润改善
  • 结论: 价格是所有杠杆中最有力的,因为它直接影响利润率而不增加成本
  • 结果: 很多企业在专业顾问指导下发现"降价促销"实际上在吃掉利润

案例2: Cash Acceleration Strategy案例

  • 问题: 某企业在使用Power of One后,发现现金改善最大的是应收账款天数和库存天数
  • 方法论的使用: 企业将Cash Conversion Cycle拆解成4个组成部分,针对每个部分寻找加速方法
  • 结论: 大多数企业忽视周转端杠杆,实际上它不需要额外投入就能释放大量现金
  • 结果: 多个案例中,企业在实施后立即将operating cash flow翻倍

案例3: Outback Steakhouse的X-Factor定价

  • 问题: Outback如何设计其招牌产品Bloomin' Onion的定价?
  • 方法论的使用: 书中提到X-Factor是差异化定价的基础——你的差异化能支撑多高的溢价
  • 结论: Power of One必须与X-Factor配合才有意义——提价能力来自差异化
  • 结果: Bloomin' Onion单个产品创造$20亿收入

A2 — 触发场景 (Future Trigger) ★

用户会在什么情境下需要这个skill?

  1. 现金流紧张但不知道从哪里改善 — 账上现金越来越少,但不知道是哪个环节出了问题
  2. 考虑提价但不知道对利润的影响 — 客户在抱怨价格,销售在要求折扣,管理层不知道该怎么决策
  3. 考虑降价促销拉动销量 — 不知道降价1%需要多卖多少才能弥补利润损失
  4. 供应商要求更早付款以换取折扣 — 不知道这个trade-off是否值得
  5. 账期设计不合理 — 客户账期太长或太短,需要重新评估
  6. 企业增长但现金不增 — 收入增长但现金储备反而下降,说明Cash Conversion Cycle在恶化

Read the full file on GitHub · 183 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 183 lines · 93 tokens per session scan A 7e94ed530424

Subscribe to this mod's changes

power-of-one is a skill published in the GitHub repository ace3000chao/book2startup (80 stars, last pushed 4mo ago), licensed MIT. It adds 93 tokens to every session and 2,478 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.