buffett

buffett is a skill for Claude Code, Codex from Ertinox7711/SGRR-AGI-V2. It costs 164 tokens per session (2,360 once invoked), scanned A, original, MIT.

An investing analysis framework based on Warren Buffett's stated approach to businesses, including understanding how a company earns money, its long-term durability, management, and competitive advantages.

In plain words
What is it for?
Use it to analyze stocks, companies, annual reports, shareholder letters, investment opportunities, and business advantages.
Why use it?
Investment decisions can be driven by confusing reports or short-term excitement. This gives you a structured way to examine a company and decide whether it fits your criteria.

Skill for Claude CodeCodex

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

Good fit Use it to analyze stocks, companies, annual reports, shareholder letters, investment opportunities, and business advantages.

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Install with agentmods
npx agentmods add skills/ertinox7711/sgrr-agi-v2/buffett
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 Ertinox7711/SGRR-AGI-V2 --skill buffett
Clone the repo
git clone --depth 1 https://github.com/Ertinox7711/SGRR-AGI-V2

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 buffett

README.md
[![agentmods](https://agentmods.dev/badge/skills/ertinox7711/sgrr-agi-v2/buffett/github.svg)](https://agentmods.dev/skills/ertinox7711/sgrr-agi-v2/buffett)
Your own site
<a href="https://agentmods.dev/skills/ertinox7711/sgrr-agi-v2/buffett"><img src="https://agentmods.dev/badge/skills/ertinox7711/sgrr-agi-v2/buffett/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 buffett

Your own site · 80×15
<a href="https://agentmods.dev/skills/ertinox7711/sgrr-agi-v2/buffett"><img src="https://agentmods.dev/badge/skills/ertinox7711/sgrr-agi-v2/buffett.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 164 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,360 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 $0.00164 $0.02360
Opus 5.5 $0.00066 $0.00944
Sonnet 5.5 $0.00033 $0.00472
Haiku 4.5 $0.00016 $0.00236

Measured 1mo ago against content hash fbad6a2bf83a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

buffett 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/buffett/SKILL.md · 199 lines

How it starts

The opening of the file, as written. The whole thing — 199 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Buffett Investment Thinking System

What you embody is the complete investment wisdom Warren Buffett accumulated over 70 years: Graham's margin of safety, Munger's quality premium, Berkshire's capital allocation philosophy, and the common sense and honesty that runs throughout.

Not applying formulas — thinking the way he actually thinks.

Read reference files: Use the Read tool, with path = the Base directory shown at the top when the skill loads + /references/filename. Construction: {Base directory}/references/03-business-moat.md (replace {Base directory} with the actual path displayed). Files must actually be read before analysis — do not rely on built-in knowledge as a substitute.


Quick Filter (2 minutes, 8 questions)

Run these 8 questions first. Two "No" answers require strong justification; four "No" answers means pass and move on to the next opportunity.

# Dimension Question No = Red Flag
1 Circle of Competence Can I explain in one paragraph how this business makes money? Can't explain = outside circle of competence
2 Durability Will this company still exist and be more competitive in 10 years? No = technology/model disruption risk
3 Moat Could a competitor replicate its core advantage with serious effort? Yes = no moat
4 Pricing Power Can it raise prices 5–10% without losing a significant share of customers? No = commodity-type business
5 Earnings Quality Does profit genuinely convert to cash (rather than accounting tricks)? No = earnings quality problem
6 Debt Safety In the industry's worst-case scenario (revenue −30%), can it survive? No = leverage risk
7 Management Integrity Does management honestly confront problems rather than hide them? No = automatic veto
8 Reasonable Price Is the gap between current price and intrinsic value large enough? No = wait or skip

Integrity (Q7) is an automatic veto — no matter how good everything else looks.

Read the full file on GitHub · 199 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 · 199 lines · 164 tokens per session scan A fbad6a2bf83a

Subscribe to this mod's changes

buffett is a skill published in the GitHub repository Ertinox7711/SGRR-AGI-V2 (1 stars, last pushed 1mo ago), licensed MIT. It adds 164 tokens to every session and 2,360 once invoked, about $0.0007 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 2026-09-09.

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