third-brain-v7-skills: Instructions file for Claude Code

CLAUDE.md

third-brain-v7-skills CLAUDE.md is an instructions file for Claude Code from Mark393295827/third-brain-v7-skills. It costs 1,124 tokens per session, scanned A, original, MIT.

A set of instructions for organizing a multi-domain personal knowledge system used with Claude Code and Codex.

In plain words
What is it for?
Managing the knowledge vault’s taxonomy, including concept areas, entity categories, source pools, and output folders.
Why use it?
It keeps notes, entities, sources, and generated outputs in a consistent structure instead of scattering them across arbitrary folders.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions subagents; mentions Claude Code.

This is Mark393295827/third-brain-v7-skills's own configuration. It tells Claude Code how to work on third-brain-v7-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything third-brain-v7-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Mark393295827/third-brain-v7-skills. 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/Mark393295827/third-brain-v7-skills/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/Mark393295827/third-brain-v7-skills

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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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Per session 1,124 This file is loaded in full into every session.
When invoked 1,124 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 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 $0.01124 $0.01124
Opus 5 $0.00562 $0.00562
Sonnet 5 $0.00225 $0.00225
Haiku 4.5 $0.00112 $0.00112

Measured 11d ago against content hash e908df7fdc3a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

third-brain-v7-skills 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 11d 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 · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Third Brain V8.1 Skills — Claude Code

For detailed installation, usage, and workflow scenarios, see GUIDE.md.

This file is a Claude Code compatibility adapter. Codex OS and AGENTS.md are the primary project host contract. The repository exposes 21 Agent Skills under skills/; compatible installations may mirror them to ~/.claude/skills/ or ~/.agents/skills/.

V8.1 Multi-Domain Taxonomy Specification

contracts/vault-contract.json defines the machine-enforced multi-domain taxonomy. Always resolve an explicit Vault root; no personal path is part of this contract.

  1. wiki/concepts/ (13 Domain Subdirectories): ai-engineering, ai-economics, ai-science, behavioral-econ, business-strategy, entrepreneurship, general-concepts, geopolitics-energy, identity-culture, investing-macro, investing-quant, investing-vc, knowledge-systems.

  2. wiki/entities/ (5 Category Subdirectories): people, companies, funds-investors, products, orgs.

  3. sources/ (6 Pool Subdirectories): YYYY-MM/ (e.g. 2026-07/), pre-2026/, books/ (>100KB).

  4. wiki/outputs/ (3 Category Subdirectories): gmail-digests/, evaluations/, compilations/.

  5. maps/ (4 Map Tier Subdirectories): domain-mocs/, system-indexes/, project-maps/, canvases/ (plus Home.md & 中央索引.md).

  6. system/ (Log Rotation Contract): Active log at system/log.md (keep <100KB); archive historical entries to system/logs/log-archive-historical.md.


20 Core Skills Overview

📥 Knowledge Pipeline

  • wiki-ingest — STOW pipeline with 13-domain concept placement, 5-category entity placement, block refs, Karpathy understanding gate, governance notes, and post-ingest lint.
  • knowledge-ops — Multi-layer knowledge management with Markdown-first retrieval, optional ChromaDB vector support, evidence hierarchy, deduplication, and knowledge debt queues.
  • wiki-lint — Health-check the wiki across graph health, link integrity, taxonomy compliance, provenance debt, clipping lifecycle, understanding integrity, and drift.

Read the full file on GitHub · 75 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. 11d ago First seen · 75 lines · 1,124 tokens per session scan A e908df7fdc3a

Subscribe to this mod's changes

third-brain-v7-skills CLAUDE.md is an instructions file published in the GitHub repository Mark393295827/third-brain-v7-skills (138 stars, last pushed 20d ago), licensed MIT. It adds 1,124 tokens to every session, about $0.0056 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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