brain

brain is a skill for Claude Code from pwdev-solucoes/pwdev-claude-marketplace. It costs 154 tokens per session (1,330 once invoked), scanned A, original, Apache-2.0.

A persistent Markdown knowledge base maintained as a cited wiki. It uses an Open Knowledge Format bundle, with original sources kept separately from written concepts.

In plain words
What is it for?
Ingesting sources, querying the stored knowledge, generating reports, and validating or organizing the wiki through its defined commands.
Why use it?
It keeps notes traceable to their sources and requires discussion and user approval before information is added or changed.

Skill for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the pwdev-brain plugin — 1 skill, 5 commands, 2 agents shipped together

Good fit Ingesting sources, querying the stored knowledge, generating reports, and validating or organizing the wiki through its defined commands.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add pwdev-solucoes/pwdev-claude-marketplace
Claude Code
/plugin install pwdev-brain

Made for: Claude Code.

Or install pwdev-brain, the plugin that ships this one along with the rest of its 1 skill, 5 commands, 2 agents.

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 brain

README.md
[![agentmods](https://agentmods.dev/badge/skills/pwdev-solucoes/pwdev-claude-marketplace/brain/github.svg)](https://agentmods.dev/skills/pwdev-solucoes/pwdev-claude-marketplace/brain)
Your own site
<a href="https://agentmods.dev/skills/pwdev-solucoes/pwdev-claude-marketplace/brain"><img src="https://agentmods.dev/badge/skills/pwdev-solucoes/pwdev-claude-marketplace/brain/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 brain

Your own site · 80×15
<a href="https://agentmods.dev/skills/pwdev-solucoes/pwdev-claude-marketplace/brain"><img src="https://agentmods.dev/badge/skills/pwdev-solucoes/pwdev-claude-marketplace/brain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 154 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,330 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 $0.00154 $0.01330
Opus 5 $0.00077 $0.00665
Sonnet 5 $0.00031 $0.00266
Haiku 4.5 $0.00015 $0.00133

Measured 9d ago against content hash bd0f5874f59c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

brain 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 9d 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.

plugins/pwdev-brain/skills/brain/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Brain — segundo cérebro em LLM Wiki (OKF v0.2)

Papel

Roteador e guardião do formato: leva cada intenção do usuário para a operação certa e impede escrita fora do fluxo.

Princípio central

Nada entra na wiki sem discussão e sem citação. A wiki acumula valor porque cada afirmação tem fonte e cada mudança passa pelo usuário — gravar direto "para agilizar" destrói exatamente o que a torna confiável.

Antes de começar

  1. Leia .claude/pwdev-brain-context.md — idioma, caminho do brain, identidade e preferências.
  2. Sem contexto ou sem <brain>/wiki/index.md válido → pare e aponte /pwdev-brain:init.
  3. Idioma conforme ${CLAUDE_PLUGIN_ROOT}/references/language.md; formato conforme ${CLAUDE_PLUGIN_ROOT}/references/okf-spec.md.

Framework — intenção → operação

Intenção do usuário Operação
"adiciona/salva/ingere isso" (arquivo, link, artigo, paper) /pwdev-brain:ingest <fonte>
"o que minha wiki/brain diz/sabe sobre X", perguntas sobre o acervo /pwdev-brain:query <pergunta>
"gera um relatório/comparativo a partir do meu brain" /pwdev-brain:query (artefato em wiki/output/)
"valida/limpa/organiza a wiki", "tem link quebrado?" /pwdev-brain:lint
"cria/configura meu segundo cérebro" /pwdev-brain:init
"como está meu brain?" /pwdev-brain:status

Mapa de intenção → tool MCP (leitura rápida)

Path A — MCP brain conectado: para leituras pontuais em conversa natural, use as tools direto — mais barato em contexto que abrir arquivos:

Intenção Tool
Panorama/diagnóstico do brain brain_info (caminho, resolved_via, contagens)
Ponto de entrada da wiki brain_index
Listar conceitos (filtro por type/status/tag) brain_list
Buscar por termo (ranqueado, com snippets) brain_search
Ler conceito ou fonte (wiki/…, raw/…) brain_get
Histórico de mudanças brain_log

Path B — MCP ausente ou falhando: não simule resultado de tool. Siga o fluxo filesystem dos comandos (index → conceitos → Grep dirigido). Falha com brain válido é quase sempre sessão iniciada antes do plugin/env var ou node ausente — aponte /pwdev-brain:status e reinício de sessão.

Read the full file on GitHub · 105 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. 9d ago First seen · 105 lines · 154 tokens per session scan A bd0f5874f59c

Subscribe to this mod's changes

brain is a skill published in the GitHub repository pwdev-solucoes/pwdev-claude-marketplace (2 stars, last pushed 3d ago), licensed Apache-2.0. It adds 154 tokens to every session and 1,330 once invoked, about $0.0008 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 2026-08-31.

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