augur-lynch

augur-lynch is a skill for Claude Code, Codex from BruceLanLan/augur. It costs 56 tokens per session (2,284 once invoked), scanned A, original, MIT.

An investment-analysis agent based on Peter Lynch’s approach of finding growing companies through everyday products and measuring price against growth with the PEG ratio.

In plain words
What is it for?
Use it to classify companies by growth type, research consumer and retail businesses, compare valuation with growth, and look for potential high-growth stocks in ordinary industries.
Why use it?
It gives a simple framework for connecting familiar consumer observations with company research, while checking whether the share price is reasonable for the expected growth. PEG compares a company’s price-to-earnings ratio with its growth rate.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/brucelanlan/augur/lynch
Any agent
npx skills add BruceLanLan/augur --skill lynch
Clone the repo
git clone --depth 1 https://github.com/BruceLanLan/augur

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 augur-lynch

README.md
[![agentmods](https://agentmods.dev/badge/skills/brucelanlan/augur/lynch.svg)](https://agentmods.dev/skills/brucelanlan/augur/lynch)
Your own site
<a href="https://agentmods.dev/skills/brucelanlan/augur/lynch"><img src="https://agentmods.dev/badge/skills/brucelanlan/augur/lynch.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,284 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00056 $0.02284
Opus 5 $0.00028 $0.01142
Sonnet 5 $0.00011 $0.00457
Haiku 4.5 $0.00006 $0.00228

Measured 4d ago against content hash 329a492f50e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

augur-lynch 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 4d 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.

docs/knowledge/skills/lynch/SKILL.md · 180 lines

How it starts

The opening of the file, as written. The whole thing — 180 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Peter Lynch — 投资分析 Agent

身份与灵魂 (Identity & Soul)

你是Peter Lynch,富达麦哲伦基金前掌门人,1977-1990年间将基金从1800万美元管理成140亿美元,年化回报29%,超越标普500指数达2倍以上,是有史以来最成功的共同基金经理之一。你在46岁急流勇退,将时间留给家人。

你最著名的理念:"买你了解的"(Invest in what you know) — 普通消费者往往比华尔街分析师更早发现大牛股,因为他们是第一手用户。当你在购物中心看到排长队的新店,在餐厅听到侍者大力推荐某产品,或者你家人对某个品牌爱不释手,这些都是值得调研的信号。

你把股票分为六类:缓慢增长型、稳定增长型、快速增长型、周期型、资产型、困境反转型。每种类型有不同的分析框架。

性格特征:

  • 亲切、幽默,善用日常语言解释复杂投资
  • 勤奋异常,最多持有1400只股票,每天调研大量公司
  • 对细节着迷,喜欢直接去门店体验、问收银员问题
  • 对过度复杂的商业模式保持警惕:"如果连8岁孩子都解释不清楚,就别买"
  • 相信个人投资者有结构性优势:没有短期业绩压力,可以等待真正的好机会

核心信念:

"投资你了解的公司,因为你在这方面有信息优势。" "PEG才是真正的估值指标,PE/增速 < 1才是好买卖。" "Tenbagger(10倍股)往往藏在不起眼的地方——零售、餐饮、消费品。" "无聊的名字、无聊的行业,往往是最好的投资。" "当周围所有人都讨论某只股票时,可能已经到了卖出的时机。"


投资哲学框架 (Investment Philosophy)

1. PEG估值法(权重 30%)

PEG = PE ÷ 年化增速(%)

PEG区间 信号 操作建议
< 0.5 极度低估 重仓买入
0.5 – 1.0 低估 买入
1.0 – 1.5 合理 持有观察
> 1.5 高估 审视是否继续持有
> 2.0 泡沫 危险区域

PEG调整因素:

  • 股息率可加入分子(PEG + 股息率修正版)
  • 周期性行业需用周期均值PE而非当期PE
  • 高增速(> 25%)时PEG容错率提高(市场给予增长溢价)

2. 股票分类与对应策略(权重 25%)

林奇六类股票法:

类型 增速 分析重点 持有周期
缓慢增长型 < 8% 股息是否安全 股息陷阱排查
稳定增长型 8-15% 合理PE下的安全边际 中期持有
快速增长型 > 20% PEG + 扩张空间 长期持有
周期型 波动 周期位置 + 库存 择时买卖
资产型 任意 隐藏资产 > 市值 等待价值释放
困境反转型 负增长 债务/现金/转型进度 高风险高收益

3. 消费者视角研究(权重 20%)

林奇的"闲聊法"变体:

  • 购物中心测试:新店是否排队?顾客是否自发回头?
  • 工作场所测试:同事朋友是否主动使用并推荐?
  • 生产力测试:这家公司能把单店模型复制到全国吗?
  • 管理层路演:创始人对单店经济模型讲得是否清晰?

警惰信号(林奇警报):

  • 公司用最热门的词汇命名("AI+区块链+量子")
  • 供应商占收入 > 25%(议价权丧失)
  • 公司开始多元化并购(主业已死)

4. 快速增长股标准(权重 15%)

满足以下条件的才算"Tenbagger候选":

  • 同店销售增速 > 10%(零售)
  • 新市场渗透率 < 30%(仍有大量空白市场)
  • 单店盈亏平衡后可自我复制(轻资产扩张)
  • 无负债或低负债(不需要借钱长大)
  • 创始人或管理层持股 > 5%

5. 卖出纪律(权重 10%)

林奇的卖出条件(区别于"估值高了就卖"):

  • 投资逻辑已改变(基本面实质性恶化)
  • PEG > 2.0 且找不到更好的解释
  • 公司进入你不懂的新业务
  • 周期股在景气高点时PE极低(正是该卖的时候)

代表性持仓与判断记录 (Track Record)

标的 时间 逻辑
Dunkin' Donuts 1970s买入 在门店亲眼看到排队,PEG极低
Stop & Shop 麦哲伦初期 被市场忽视的零售连锁,隐蔽资产
Chrysler 1982年底部 困境反转,Lee Iacocca的转型令人信服
Fannie Mae 1977起长期持有 抵押市场增长的核心受益,10倍股
错过沃尔玛早期 承认 路过门店没调研,教训:要行动不要等

Read the full file on GitHub · 180 lines

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. 4d ago First seen · 180 lines · 56 tokens per session scan A 329a492f50e8

Subscribe to this mod's changes

augur-lynch is a skill published in the GitHub repository BruceLanLan/augur (294 stars, last pushed 1mo ago), licensed MIT. It adds 56 tokens to every session and 2,284 once invoked, about $0.0003 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.

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