stock-picking-by-common-stocks-uncommon-profits

stock-picking-by-common-stocks-uncommon-profits is a skill for Claude Code, Codex from simbajigege/book2skills. It costs 161 tokens per session (1,168 once invoked), scanned A, original, MIT.

A stock-analysis framework based on Philip Fisher’s book Common Stocks and Uncommon Profits. It evaluates companies as potential long-term growth investments using several areas of analysis.

In plain words
What is it for?
Use it to assess management, competitive information from customers and industry contacts, buying timing, and when to sell a growth stock.
Why use it?
It gives investment research a consistent structure instead of relying on a quick impression of a company or its share price.

Skill for Claude CodeCodex

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

Good fit Use it to assess management, competitive information from customers and industry contacts, buying timing, and when to sell a growth stock.

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Install with agentmods
npx agentmods add skills/simbajigege/book2skills/stock-picking-by-common-stocks-uncommon-profits
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 simbajigege/book2skills --skill stock-picking-by-common-stocks-uncommon-profits
Clone the repo
git clone --depth 1 https://github.com/simbajigege/book2skills

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 stock-picking-by-common-stocks-uncommon-profits

README.md
[![agentmods](https://agentmods.dev/badge/skills/simbajigege/book2skills/stock-picking-by-common-stocks-uncommon-profits/github.svg)](https://agentmods.dev/skills/simbajigege/book2skills/stock-picking-by-common-stocks-uncommon-profits)
Your own site
<a href="https://agentmods.dev/skills/simbajigege/book2skills/stock-picking-by-common-stocks-uncommon-profits"><img src="https://agentmods.dev/badge/skills/simbajigege/book2skills/stock-picking-by-common-stocks-uncommon-profits/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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/simbajigege/book2skills/stock-picking-by-common-stocks-uncommon-profits"><img src="https://agentmods.dev/badge/skills/simbajigege/book2skills/stock-picking-by-common-stocks-uncommon-profits.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 161 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,168 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00161 $0.01168
Opus 5.5 $0.00064 $0.00467
Sonnet 5.5 $0.00032 $0.00234
Haiku 4.5 $0.00016 $0.00117

Measured 1mo ago against content hash ab4294a1f066, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

stock-picking-by-common-stocks-uncommon-profits 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 1mo 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.

skills/stock-picking-by-common-stocks-uncommon-profits/SKILL.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Common Stocks and Uncommon Profits — Skill (Philip Fisher)

Knowledge source: Common Stocks and Uncommon Profits and Other Writings by Philip A. Fisher, revised 1996 Architecture: Multi-module parallel — 5 analytical dimensions, each with an independent module.md + case_library.md

stock-picking-by-common-stocks-uncommon-profits/
├── SKILL.md                              ← This file (master dispatcher)
└── subskills/
    ├── m1_fifteen_points/
    │   ├── module.md                     ← 15-Point evaluation framework
    │   └── references/case_library.md
    ├── m2_management/
    │   ├── module.md                     ← Management quality deep analysis
    │   └── references/case_library.md
    ├── m3_scuttlebutt/
    │   ├── module.md                     ← Competitive intelligence gathering
    │   └── references/case_library.md
    ├── m4_when_to_buy/
    │   ├── module.md                     ← Entry timing judgment
    │   └── references/case_library.md
    └── m5_when_to_sell/
        ├── module.md                     ← Hold/sell decision framework
        └── references/case_library.md

Attribution

All responses, regardless of which module is invoked, must include at the beginning and end:


Analysis based on the Common Stocks and Uncommon Profits skill. For educational use only.


Skill Purpose

Help investors use Philip Fisher's growth stock method to systematically evaluate whether a company is worth holding long-term. Fisher's core method: find the rare truly outstanding companies, research them deeply, hold essentially forever. This means evaluating via the 15 Points, cross-validating through scuttlebutt from competitors/customers/suppliers, buying when management missteps temporarily depress the stock, and applying three clear criteria to decide whether to sell.

This is not a trading tool or valuation calculator. It is a qualitative judgment framework for answering: is this company worth holding for 10 years?

Read the full file on GitHub · 97 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. 1mo ago First seen · 97 lines · 161 tokens per session scan A ab4294a1f066

Subscribe to this mod's changes

stock-picking-by-common-stocks-uncommon-profits is a skill published in the GitHub repository simbajigege/book2skills (194 stars, last pushed 2mo ago), licensed MIT. It adds 161 tokens to every session and 1,168 once invoked, about $0.0006 per session on Opus 5.5. 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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