What is trading-second-brain CLAUDE.md?

A set of instructions for the trading-second-brain project, a system for organising and using trading knowledge. It describes the project's agents, knowledge structure, writing rules, and handling of text and images.

Following the project's agent map, checking its knowledge hierarchy before answering trading questions, applying its writing rules, and processing text or visual information.

It gives the coding agent project-specific guidance, so trading questions are answered according to the project's chosen sources and workflow.

How kain26/trading-second-brain configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to kain26/trading-second-brain. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/kain26/trading-second-brain/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/kain26/trading-second-brain

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/kain26/trading-second-brain/claude-md/github.svg)](https://agentmods.dev/instructions/kain26/trading-second-brain/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/kain26/trading-second-brain/claude-md"><img src="https://agentmods.dev/badge/instructions/kain26/trading-second-brain/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/kain26/trading-second-brain/claude-md"><img src="https://agentmods.dev/badge/instructions/kain26/trading-second-brain/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 635 This file is loaded in full into every session.

When invoked 635 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00635	$0.00635
Opus 5.5	$0.00254	$0.00254
Sonnet 5.5	$0.00127	$0.00127
Haiku 4.5	$0.00064	$0.00064

Measured 2mo ago against content hash c22c44be3f38, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

trading-second-brain CLAUDE.md 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 2mo 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.

CLAUDE.md · 66 lines

The source is not reproduced here

No licence file

Read it on GitHub

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.

2mo ago First seen · 66 lines · 635 tokens per session scan A c22c44be3f38

Subscribe to this mod's changes

trading-second-brain CLAUDE.md is an instructions file published in the GitHub repository kain26/trading-second-brain (54 stars, last pushed 2mo ago), with no licence file. It adds 635 tokens to every session, about $0.0025 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.

Finance and fintech Memory and context

trading-second-brain CLAUDE.md next to 6 instructions from other repositories
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trading-second-brain CLAUDE.mdkain26/trading-second-brain	Instructions file	54	2mo ago	none	A	635	Claude Code
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trading-second-brain: Instructions file for Claude Code