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Using Market Sages with Codex CLI

OpenAI Codex CLI respects AGENTS.md files for persistent instructions. Market Sages ships a ready-to-use AGENTS.md.

Installation

Option 1: Skill Installer (recommended, global install)

In any Codex session (natural language):

Install the market-sages skill from hyhmrright/market-sages

Or via command line:

python3 ~/.codex/skills/.system/skill-installer/scripts/install-skill-from-github.py \
  --repo hyhmrright/market-sages --path skills --name market-sages

Option 2: Project-level AGENTS.md

Run in your project directory:

First time (no existing AGENTS.md):

curl -sL https://raw.githubusercontent.com/hyhmrright/market-sages/main/AGENTS.md \
  -o ./AGENTS.md

Already have an AGENTS.md? Append instead:

curl -sL https://raw.githubusercontent.com/hyhmrright/market-sages/main/AGENTS.md \
  >> ./AGENTS.md

Option 3: Manual install

git clone https://github.com/hyhmrright/market-sages.git /tmp/market-sages
mkdir -p ~/.codex/skills/market-sages
cp -r /tmp/market-sages/skills/* ~/.codex/skills/market-sages/

Verify

codex "List the 13 Market Sages and their core philosophy"

Usage

# Full council analysis
codex "Analyze Apple using the Market Sages council"

# Specific sages
codex "Use only Benjamin Graham and Michael Burry to evaluate Intel"

# Growth focus
codex "Give me Cathie Wood and Peter Lynch's take on Palantir"

# Risk focus  
codex "Apply Nassim Taleb's antifragility framework to First Republic Bank"

# Comparison
codex "Compare Microsoft and Google through all 13 Market Sages"

# With data
codex "Analyze Nvidia with this data: Revenue $60B, P/E 65x, FCF $27B, data center growing 200% YoY"

Multi-turn Conversations

Codex CLI supports conversation history. Use follow-ups:

codex "Analyze Tesla with all 13 sages"
# After response:
codex "What would change Burry's bearish thesis on Tesla?"
codex "Which sage has the strongest conviction here and why?"

Tips

  • Paste earnings data directly in your prompt for current analysis
  • Name specific sages to get targeted perspectives
  • Ask for the math — especially Damodaran (DCF) and Graham (Graham Number)
  • Historical scenarios work well: "What would the sages say about Lehman in 2007?"

Example Full Session

$ codex "Market Sages analysis of $NVDA — here's Q3 data: Revenue $18B, Data Center $14.5B, FCF $9.7B, P/E 55x, EV/EBIT 42x, gross margin 74.6%"

[Codex output: Full 13-sage council analysis with Risk Manager and Portfolio Manager...]

$ codex "Taleb seemed bullish — why? Isn't high P/E fragile?"

[Codex follow-up: Taleb's nuanced view on Nvidia's optionality...]