feat: explain common agent skills

README.md

@@ -4,6 +4,8 @@ A lightweight, presentation-style field guide to AI-assisted engineering.
 
 It explains how to combine a strong planning/review model with faster workers,
 reusable skills, subagent handoffs, Git worktrees, and explicit verification.
+An interactive field kit compares common behavior skills such as
+`ponytail-lite`, `caveman`, `unlazy`, research, debugging, and review.
 
 ## Run locally
 

app.js

@@ -27,19 +27,28 @@ const interactiveCopy = {
     references: { icon: '≡', title: 'references/', en: 'Stable facts loaded only when the procedure needs them. Keep the main instruction lean.', pt: 'Fatos estáveis carregados apenas quando o procedimento precisa. Mantenha a instrução principal enxuta.' },
     scripts: { icon: '›_', title: 'scripts/', en: 'Deterministic checks and repeated operations. Prefer executable proof over prose.', pt: 'Verificações determinísticas e operações repetidas. Prefira prova executável a prosa.' },
     assets: { icon: '▧', title: 'assets/', en: 'Templates and examples the agent can copy without reinventing the expected shape.', pt: 'Templates e exemplos que o agente pode copiar sem reinventar o formato esperado.' }
+  },
+  commonSkills: {
+    ponytail: { number: '01', kind: { en: 'SIMPLIFICATION INSTINCT', pt: 'INSTINTO DE SIMPLIFICAÇÃO' }, title: 'ponytail-lite', rule: { en: 'Stop at the first rung that holds.', pt: 'Pare no primeiro degrau que sustenta.' }, use: { en: 'Use when a request invites frameworks, dependencies, abstractions, or speculative scaffolding. It checks reuse, standard library, and native platform features before adding code.', pt: 'Use quando um pedido convida frameworks, dependências, abstrações ou scaffolding especulativo. Verifica reúso, biblioteca padrão e recursos nativos antes de adicionar código.' }, example: { en: 'Date picker? Start with <input type="date">.', pt: 'Seletor de data? Comece com <input type="date">.' }, caution: { en: 'Never simplify away security, accessibility, validation, or real edge cases.', pt: 'Nunca simplifique segurança, acessibilidade, validação ou casos extremos reais.' } },
+    caveman: { number: '02', kind: { en: 'COMMUNICATION STYLE', pt: 'ESTILO DE COMUNICAÇÃO' }, title: 'caveman', rule: { en: 'Signal first. Drop filler.', pt: 'Sinal primeiro. Corte o excesso.' }, use: { en: 'Use for routine status, handoffs, and technical summaries where speed matters. Short fragments make actions and evidence easy to scan.', pt: 'Use em status, handoffs e resumos técnicos rotineiros onde velocidade importa. Fragmentos curtos facilitam localizar ações e evidências.' }, example: { en: 'Built. Tests pass. Published.', pt: 'Feito. Testes passaram. Publicado.' }, caution: { en: 'Drop the style for security warnings, irreversible actions, and sequences where terse wording can be misread.', pt: 'Abandone o estilo em alertas de segurança, ações irreversíveis e sequências onde concisão pode causar erro.' } },
+    unlazy: { number: '03', kind: { en: 'COMPLETION DISCIPLINE', pt: 'DISCIPLINA DE CONCLUSÃO' }, title: 'unlazy', rule: { en: 'Define observable gates. Finish against evidence.', pt: 'Defina gates observáveis. Termine com evidências.' }, use: { en: 'Use for substantial autonomous builds, audits, and parallel work where quiet omissions are expensive. It turns “done” into runnable acceptance checks.', pt: 'Use em builds autônomos grandes, auditorias e trabalho paralelo onde omissões custam caro. Transforma “pronto” em verificações executáveis.' }, example: { en: 'Gate: language toggle persists. Check: browser reload. Expect: pt-BR.', pt: 'Gate: idioma persiste. Check: recarregar navegador. Esperado: pt-BR.' }, caution: { en: 'Too heavy for trivial edits or factual answers.', pt: 'Pesado demais para edições triviais ou respostas factuais.' } },
+    research: { number: '04', kind: { en: 'SOURCE DISCIPLINE', pt: 'DISCIPLINA DE FONTES' }, title: 'research', rule: { en: 'Trace claims to owners.', pt: 'Leve afirmações até suas fontes.' }, use: { en: 'Use when APIs, standards, architecture facts, or current behavior must be verified. Capture findings in a cited note, prioritizing primary sources.', pt: 'Use quando APIs, padrões, fatos de arquitetura ou comportamento atual precisam ser verificados. Registre achados citados, priorizando fontes primárias.' }, example: { en: 'Git behavior → git-scm.com docs, not a remembered blog summary.', pt: 'Comportamento do Git → documentação git-scm.com, não memória de um blog.' }, caution: { en: 'Practitioner articles add context; they do not override official behavior.', pt: 'Artigos de praticantes dão contexto; não substituem comportamento oficial.' } },
+    debug: { number: '05', kind: { en: 'DIAGNOSTIC LOOP', pt: 'CICLO DE DIAGNÓSTICO' }, title: 'diagnosing-bugs', rule: { en: 'No red-capable loop, no theory.', pt: 'Sem ciclo capaz de falhar, sem teoria.' }, use: { en: 'Use for hard bugs, flakes, and regressions. First build a fast deterministic reproduction, then minimize, rank hypotheses, instrument, and fix the root cause.', pt: 'Use para bugs difíceis, flakes e regressões. Primeiro crie reprodução rápida e determinística; depois minimize, ranqueie hipóteses, instrumente e corrija a causa raiz.' }, example: { en: 'One command reproduces the exact symptom before any fix.', pt: 'Um comando reproduz o sintoma exato antes de qualquer correção.' }, caution: { en: 'Do not jump from error message straight to a patch.', pt: 'Não pule da mensagem de erro direto para um patch.' } },
+    review: { number: '06', kind: { en: 'INDEPENDENT REVIEW', pt: 'REVISÃO INDEPENDENTE' }, title: 'code-review', rule: { en: 'Check standards and intent separately.', pt: 'Verifique padrões e intenção separadamente.' }, use: { en: 'Use on a branch or PR. One axis checks repository standards; another checks whether the change actually satisfies its originating specification.', pt: 'Use em branch ou PR. Um eixo verifica padrões do repositório; outro verifica se a mudança realmente satisfaz a especificação original.' }, example: { en: 'Clean code can still solve the wrong problem.', pt: 'Código limpo ainda pode resolver o problema errado.' }, caution: { en: 'Pin the comparison point and source specification before reviewing.', pt: 'Fixe o ponto de comparação e a especificação antes de revisar.' } },
+    tokens: { number: '07', kind: { en: 'CONTEXT ECONOMY', pt: 'ECONOMIA DE CONTEXTO' }, title: 'token-saver', rule: { en: 'Keep signal. Strip command noise.', pt: 'Mantenha sinal. Corte ruído de comandos.' }, use: { en: 'Use around verbose tests, builds, Git output, and logs. Filtering preserves context for reasoning while retaining full failure output for recovery.', pt: 'Use em testes, builds, saídas Git e logs verbosos. Filtragem preserva contexto para raciocínio e mantém falhas completas para recuperação.' }, example: { en: '200 passing-test lines → one result; failures keep their trace.', pt: '200 linhas de testes passando → um resultado; falhas mantêm o trace.' }, caution: { en: 'Read raw output when exact wording or full diffs matter.', pt: 'Leia saída bruta quando texto exato ou diffs completos importarem.' } }
   }
 };
 
 const translations = {
   pt: {
-    '.chapter-links a:nth-child(1)': '01 frota', '.chapter-links a:nth-child(2)': '02 worktrees', '.chapter-links a:nth-child(3)': '03 skills', '.edition': 'ENGENHARIA DE IA <i></i> 01 / 2026',
+    '.chapter-links a:nth-child(1)': '01 frota', '.chapter-links a:nth-child(2)': '02 worktrees', '.chapter-links a:nth-child(3)': '03 skills', '.chapter-links a:nth-child(4)': '04 kit de campo', '.edition': 'ENGENHARIA DE IA <i></i> 01 / 2026',
     '.hero .eyebrow': 'Uma apresentação para quem entrega software', '.lede': 'Você não precisa de um exército de modelos. Precisa de um sistema: uma mente para enquadrar o trabalho, várias mãos para executá-lo e uma fronteira clara entre cada tarefa.', '.hero-index span': 'NOTA DE CAMPO / 001', '.hero-index strong': 'Entregue o<br /><em>sistema.</em>', '.hero-index small': 'Skills · agentes · worktrees · evidências',
     '.hero-stats div:nth-child(1) span': 'modelo forte<br />para ambiguidade', '.hero-stats div:nth-child(2) span': 'workers delimitados<br />em paralelo', '.hero-stats div:nth-child(3) span': 'iterações<br />com evidências', '.hero-stats p': 'Leia isto como um mapa de rota, não como uma receita de prompt.',
     '.thesis span': 'REGRA ZERO', '.thesis strong': 'Modelo forte para ambiguidade.<br />Modelo leve para trabalho delimitado.', '.fleet .section-label span:nth-child(1)': 'Uma pequena frota', '.fleet .section-label span:nth-child(2)': 'coordenação antes do paralelismo', '.captain span': 'ORQUESTRADOR', '.captain h2': 'Decide o que<br />precisa acontecer.', '.worker-card[data-worker="ui"] strong': 'Componentes e estados visuais', '.worker-card[data-worker="tests"] strong': 'Casos de aceitação', '.worker-card[data-worker="docs"] strong': 'Guia e exemplos', '.caption': 'O orquestrador preserva a intenção, escreve pequenos contratos e reúne resultados verificáveis. Ele não precisa digitar cada linha.',
     '.failure-map .section-label span:nth-child(1)': 'Por que a fronteira importa', '.failure-map .section-label span:nth-child(2)': 'uma tarefa vaga / três falhas previsíveis', '.failure-grid article:nth-child(1) strong': 'Sopa de contexto', '.failure-grid article:nth-child(1) p': 'Cada worker lê tudo. Ninguém sabe quais fatos são essenciais.', '.failure-grid article:nth-child(2) strong': 'Colisão de branches', '.failure-grid article:nth-child(2) p': 'Dois agentes usam o mesmo checkout. O caminho mais rápido vira resolução de conflitos.', '.failure-grid article:nth-child(3) strong': 'Desvio confiante', '.failure-grid article:nth-child(3) p': 'O diff parece ótimo, mas ninguém verifica se resolveu o problema original.',
     '.workflow .eyebrow': 'O ciclo de subagentes', '#workflow-title': 'Clique em uma fase.<br /><em>Veja a passagem.</em>', '.workflow .copy > p:last-child': 'Delegar é mover uma tarefa delimitada para um contexto menor — não abrir mão da responsabilidade.', '.handoff .section-label span:nth-child(1)': 'O que atravessa contextos', '.handoff .section-label span:nth-child(2)': 'brief → diff → evidência', '.handoff thead th:nth-child(1)': 'Pacote', '.handoff thead th:nth-child(2)': 'Contém', '.handoff thead th:nth-child(3)': 'Por que importa',
     '.worktrees .eyebrow': 'Git worktrees', '.worktrees h2': 'Uma branch<br />por <em>mão.</em>', '.worktree-intro > p:nth-of-type(2)': 'Um worktree é outro diretório ligado ao mesmo repositório. Cada agente recebe seu próprio checkout e índice; o histórico continua compartilhado.', '.worktree-intro .interaction-hint': 'Selecione um nó para inspecionar checkout, responsável e próxima ação.', '.tree-toolbar > span:first-child': 'topologia do repositório', '.tree-live': '<i></i> 4 checkouts', '.tree-node.root span': 'RAIZ', '.tree-node.ui span': 'AGENTE DE UI', '.tree-node.tests span': 'AGENTE DE TESTES', '.tree-node.docs span': 'AGENTE DE DOCS', '.tree-node.root small': '● limpo', '.tree-node.ui small': '3 arquivos · trabalhando', '.tree-node.tests small': '8 verificações · pronto', '.tree-node.docs small': '2 páginas · revisão', '.routing .eyebrow': 'Roteamento de modelos', '.routing h2': 'Não pague por<br />raciocínio onde precisa<br />de <em>ritmo.</em>', '.routing .interaction-hint': 'Escolha um trabalho para entender por que o perfil do modelo muda.', '.route-table .head span:nth-child(1)': 'Trabalho', '.route-table .head span:nth-child(2)': 'Perfil', '.route-table .head span:nth-child(3)': 'Formato do prompt', '.route-table [data-route="plan"] strong': 'Planejar', '.route-table [data-route="build"] strong': 'Construir', '.route-table [data-route="explore"] strong': 'Explorar', '.route-table [data-route="review"] strong': 'Revisar', '.skills .eyebrow': 'Skills', '.skills h2': 'Escreva do jeito certo<br /><em>uma vez.</em>', '.skills > div:first-child > p': 'Uma skill é um procedimento reutilizável. Ela pode carregar instruções, referências, scripts e assets. Não é memória mágica e não substitui critérios de aceitação.',
-    '.skill-principles span:nth-child(1)': '01 / defina o gatilho', '.skill-principles span:nth-child(2)': '02 / carregue detalhes sob demanda', '.skill-principles span:nth-child(3)': '03 / devolva evidências', '.skill-package > span': 'PACOTE DE SKILL', '.rule span': 'O PAPEL HUMANO', '.rule strong': 'O agente pode ser autônomo na execução. Intenção, limites e evidências continuam sendo seus.', '.callout span': 'COMECE AQUI', '.callout strong': 'Comece com um agente e uma skill. Adicione paralelismo apenas quando as tarefas forem realmente independentes.', '.sources .section-label span:nth-child(1)': 'Continue aprendendo', '.sources .section-label span:nth-child(2)': '12 novas leituras + documentação primária', '.sources p': 'Aprofunde com documentação oficial, casos de produção, Medium e fluxos de praticantes. <a href="docs/references/README.md">Referências primárias →</a> <a href="docs/references/additional-reading.md">Trilha com 12 leituras →</a>'
+    '.skill-principles span:nth-child(1)': '01 / defina o gatilho', '.skill-principles span:nth-child(2)': '02 / carregue detalhes sob demanda', '.skill-principles span:nth-child(3)': '03 / devolva evidências', '.skill-package > span': 'PACOTE DE SKILL', '.skill-catalog .section-label span:nth-child(1)': 'Skills comuns', '.skill-catalog .section-label span:nth-child(2)': 'escolha o comportamento antes do modelo', '.catalog-intro .eyebrow': 'O kit de campo', '.catalog-intro h2': 'Trabalhos diferentes.<br />Instintos <em>diferentes.</em>', '.catalog-intro > p': 'Uma skill muda como o agente aborda o trabalho. Algumas moldam a comunicação. Outras impõem pesquisa, diagnóstico, revisão ou disciplina de conclusão. Selecione uma para inspecionar sua regra operacional.', '[data-common-skill="ponytail"] span': 'SIMPLIFICAR', '[data-common-skill="ponytail"] small': 'código mínimo que funciona', '[data-common-skill="caveman"] span': 'COMUNICAR', '[data-common-skill="caveman"] small': 'sinal sem excesso', '[data-common-skill="unlazy"] span': 'CONCLUIR', '[data-common-skill="unlazy"] small': 'gates e evidências', '[data-common-skill="research"] span': 'INVESTIGAR', '[data-common-skill="research"] small': 'fontes primárias primeiro', '[data-common-skill="debug"] span': 'DIAGNOSTICAR', '[data-common-skill="debug"] small': 'ciclo curto de feedback', '[data-common-skill="review"] span': 'REVISAR', '[data-common-skill="review"] small': 'padrões × especificação', '[data-common-skill="tokens"] span': 'ECONOMIZAR', '[data-common-skill="tokens"] small': 'comprima saídas ruidosas', '.skill-loadout > span': 'UM LOADOUT PRÁTICO', '.skill-loadout > div': '<b>PLANEJAR</b> unlazy <i>→</i> <b>CONSTRUIR</b> ponytail-lite <i>→</i> <b>DIAGNOSTICAR</b> diagnosing-bugs <i>→</i> <b>REPORTAR</b> caveman', '.rule span': 'O PAPEL HUMANO', '.rule strong': 'O agente pode ser autônomo na execução. Intenção, limites e evidências continuam sendo seus.', '.callout span': 'COMECE AQUI', '.callout strong': 'Comece com um agente e uma skill. Adicione paralelismo apenas quando as tarefas forem realmente independentes.', '.sources .section-label span:nth-child(1)': 'Continue aprendendo', '.sources .section-label span:nth-child(2)': '12 novas leituras + documentação primária', '.sources p': 'Aprofunde com documentação oficial, casos de produção, Medium e fluxos de praticantes. <a href="docs/references/README.md">Referências primárias →</a> <a href="docs/references/additional-reading.md">Trilha com 12 leituras →</a>'
   }
 };
 
@@ -95,11 +104,22 @@ function renderSkillFile(id) {
   selectButtons('[data-skill-file]', id, 'skillFile');
 }
 
+function renderCommonSkill(id) {
+  const item = interactiveCopy.commonSkills[id];
+  const language = currentLanguage;
+  const labels = language === 'pt'
+    ? ['QUANDO USAR', 'EXEMPLO', 'CUIDADO']
+    : ['WHEN TO USE', 'EXAMPLE', 'WATCH OUT'];
+  document.querySelector('#common-skill-detail').innerHTML = `<header><span>${item.number}</span><small>${item.kind[language]}</small></header><h3>${item.title}</h3><blockquote>${item.rule[language]}</blockquote><div class="common-skill-notes"><div><span>${labels[0]}</span><p>${item.use[language]}</p></div><div><span>${labels[1]}</span><p>${item.example[language]}</p></div><div><span>${labels[2]}</span><p>${item.caution[language]}</p></div></div>`;
+  selectButtons('[data-common-skill]', id, 'commonSkill');
+}
+
 function renderInteractive() {
   renderWorker(document.querySelector('[data-worker].active')?.dataset.worker || 'ui');
   renderTree(document.querySelector('[data-tree].active')?.dataset.tree || 'main');
   renderRoute(document.querySelector('[data-route].active')?.dataset.route || 'plan');
   renderSkillFile(document.querySelector('[data-skill-file].active')?.dataset.skillFile || 'skill');
+  renderCommonSkill(document.querySelector('[data-common-skill].active')?.dataset.commonSkill || 'ponytail');
 }
 
 function applyLanguage(language) {
@@ -119,6 +139,7 @@ document.querySelectorAll('[data-worker]').forEach((button) => button.addEventLi
 document.querySelectorAll('[data-tree]').forEach((button) => button.addEventListener('click', () => renderTree(button.dataset.tree)));
 document.querySelectorAll('[data-route]').forEach((button) => button.addEventListener('click', () => renderRoute(button.dataset.route)));
 document.querySelectorAll('[data-skill-file]').forEach((button) => button.addEventListener('click', () => renderSkillFile(button.dataset.skillFile)));
+document.querySelectorAll('[data-common-skill]').forEach((button) => button.addEventListener('click', () => renderCommonSkill(button.dataset.commonSkill)));
 window.addEventListener('scroll', () => { const height = document.documentElement.scrollHeight - window.innerHeight; document.querySelector('.reading-progress span').style.width = `${height > 0 ? (window.scrollY / height) * 100 : 0}%`; }, { passive: true });
 
 let savedLanguage = 'en';

index.html

@@ -11,7 +11,7 @@
 <body>
 <div class="reading-progress" aria-hidden="true"><span></span></div>
 <main>
-<header class="topbar"><a class="brand" href="#top"><span class="mark">A</span> field guide</a><nav class="chapter-links" aria-label="Chapter sections"><a href="#fleet">01 fleet</a><a href="#worktrees">02 worktrees</a><a href="#skills">03 skills</a></nav><div class="topbar-tools"><div class="lang-switch" aria-label="Language"><button class="active" data-lang="en" aria-pressed="true">EN</button><span>/</span><button data-lang="pt" aria-pressed="false">PT</button></div><span class="edition">AI ENGINEERING <i></i> 01 / 2026</span></div></header>
+<header class="topbar"><a class="brand" href="#top"><span class="mark">A</span> field guide</a><nav class="chapter-links" aria-label="Chapter sections"><a href="#fleet">01 fleet</a><a href="#worktrees">02 worktrees</a><a href="#skills">03 skills</a><a href="#field-kit">04 field kit</a></nav><div class="topbar-tools"><div class="lang-switch" aria-label="Language"><button class="active" data-lang="en" aria-pressed="true">EN</button><span>/</span><button data-lang="pt" aria-pressed="false">PT</button></div><span class="edition">AI ENGINEERING <i></i> 01 / 2026</span></div></header>
 <section class="hero" id="top"><div><p class="eyebrow">A presentation for humans who ship</p><h1>AI for<br /><em>dummies.</em></h1><p class="lede">You do not need an army of models. You need a system: one mind to frame the work, several hands to execute it, and a clean boundary between every task.</p></div><aside class="hero-index"><span>FIELD NOTE / 001</span><strong>Ship the<br /><em>system.</em></strong><small>Skills · agents · worktrees · proof</small></aside></section>
 <section class="hero-stats" aria-label="Chapter summary"><div><strong>01</strong><span>strong model<br />for ambiguity</span></div><div><strong>03</strong><span>bounded workers<br />in parallel</span></div><div><strong>∞</strong><span>iterations<br />with evidence</span></div><p>Read this as a route map, not a prompt recipe.</p></section>
 <section class="thesis"><div><span>RULE ZERO</span><strong>Strong model for ambiguity.<br />Light model for bounded work.</strong></div><div class="signal" aria-hidden="true"><b>THINK</b><i></i><i></i><i></i><b>MAKE</b></div></section>
@@ -22,6 +22,7 @@
 <section class="worktrees" id="worktrees"><div class="worktree-intro"><p class="eyebrow">Git worktrees</p><h2>One branch<br />per <em>hand.</em></h2><p>A worktree is another directory linked to the same repository. Each agent gets its own checkout and index; history remains shared.</p><p class="interaction-hint">Select a node to inspect its checkout, owner, and next action.</p></div><div class="tree-lab"><div class="tree-toolbar"><span>repository topology</span><span class="tree-live"><i></i> 4 checkouts</span></div><div class="tree-stage" role="tree" aria-label="Repository worktree topology"><svg viewBox="0 0 760 330" preserveAspectRatio="none" aria-hidden="true"><path class="tree-edge trunk" d="M380 48 V118"/><path class="tree-edge" d="M380 118 C380 170 110 150 110 224"/><path class="tree-edge" d="M380 118 V224"/><path class="tree-edge" d="M380 118 C380 170 650 150 650 224"/></svg><button class="tree-node root active" data-tree="main" role="treeitem" aria-selected="true"><span>ROOT</span><strong>main</strong><small>● clean</small></button><button class="tree-node branch ui" data-tree="ui" role="treeitem" aria-selected="false"><span>UI AGENT</span><strong>agent/ui</strong><small>3 files · working</small></button><button class="tree-node branch tests" data-tree="tests" role="treeitem" aria-selected="false"><span>TEST AGENT</span><strong>agent/tests</strong><small>8 checks · ready</small></button><button class="tree-node branch docs" data-tree="docs" role="treeitem" aria-selected="false"><span>DOCS AGENT</span><strong>agent/docs</strong><small>2 pages · review</small></button></div><article class="tree-detail" id="tree-detail" aria-live="polite"></article></div></section>
 <section class="routing"><div><p class="eyebrow">Model routing</p><h2>Do not pay for<br />reasoning where<br />you need <em>rhythm.</em></h2><p class="interaction-hint">Choose a job to see why the model profile changes.</p></div><div class="route-console"><div class="route-table"><div class="head"><span>Work</span><span>Profile</span><span>Prompt shape</span></div><button class="active" data-route="plan" aria-pressed="true"><strong>Plan</strong><b>strong / broad</b><small>What changes? What can break?</small></button><button data-route="build" aria-pressed="false"><strong>Build</strong><b>fast / focused</b><small>Implement this slice. Run these checks.</small></button><button data-route="explore" aria-pressed="false"><strong>Explore</strong><b>read-only / light</b><small>Find where this contract is used.</small></button><button data-route="review" aria-pressed="false"><strong>Review</strong><b>independent</b><small>Does the diff satisfy the brief?</small></button></div><article class="route-detail" id="route-detail" aria-live="polite"></article></div></section>
 <section class="skills" id="skills"><div><p class="eyebrow">Skills</p><h2>Write the right way<br /><em>once.</em></h2><p>A skill is a reusable procedure. It can carry instructions, references, scripts, and assets. It is not magical memory, and it does not replace acceptance criteria.</p><div class="skill-principles"><span>01 / trigger clearly</span><span>02 / load detail on demand</span><span>03 / return evidence</span></div></div><div class="skill-explorer"><div class="skill-package" role="tree" aria-label="Skill package files"><span>SKILL PACKAGE</span><button class="active" data-skill-file="skill" role="treeitem" aria-selected="true"><code>SKILL.md</code><small>procedure and limits</small></button><button data-skill-file="references" role="treeitem" aria-selected="false"><code>references/</code><small>facts to consult</small></button><button data-skill-file="scripts" role="treeitem" aria-selected="false"><code>scripts/</code><small>repeatable checks</small></button><button data-skill-file="assets" role="treeitem" aria-selected="false"><code>assets/</code><small>templates and examples</small></button></div><article class="skill-detail" id="skill-detail" aria-live="polite"></article></div><pre><code>name: review-ui · check focus, mobile, reduced motion · run verification · return evidence</code></pre></section>
+<section class="skill-catalog" id="field-kit"><div class="section-label"><span>Common skills</span><span>choose behavior before model</span></div><div class="catalog-intro"><div><p class="eyebrow">The field kit</p><h2>Different jobs.<br />Different <em>instincts.</em></h2></div><p>A skill changes how an agent approaches work. Some shape communication. Others enforce research, debugging, review, or completion discipline. Select one to inspect its operating rule.</p></div><div class="skill-deck"><div class="skill-index" role="tablist" aria-label="Common agent skills"><button class="active" data-common-skill="ponytail" role="tab" aria-selected="true"><span>SIMPLIFY</span><strong>ponytail-lite</strong><small>minimum code that holds</small></button><button data-common-skill="caveman" role="tab" aria-selected="false"><span>COMMUNICATE</span><strong>caveman</strong><small>signal without filler</small></button><button data-common-skill="unlazy" role="tab" aria-selected="false"><span>COMPLETE</span><strong>unlazy</strong><small>gates and evidence</small></button><button data-common-skill="research" role="tab" aria-selected="false"><span>INVESTIGATE</span><strong>research</strong><small>primary sources first</small></button><button data-common-skill="debug" role="tab" aria-selected="false"><span>DIAGNOSE</span><strong>diagnosing-bugs</strong><small>tight feedback loop</small></button><button data-common-skill="review" role="tab" aria-selected="false"><span>REVIEW</span><strong>code-review</strong><small>standards × spec</small></button><button data-common-skill="tokens" role="tab" aria-selected="false"><span>ECONOMIZE</span><strong>token-saver</strong><small>compress noisy output</small></button></div><article class="common-skill-detail" id="common-skill-detail" aria-live="polite"></article></div><div class="skill-loadout"><span>ONE PRACTICAL LOADOUT</span><div><b>PLAN</b> unlazy <i>→</i> <b>BUILD</b> ponytail-lite <i>→</i> <b>DEBUG</b> diagnosing-bugs <i>→</i> <b>REPORT</b> caveman</div></div></section>
 <aside class="rule"><span>THE HUMAN JOB</span><strong>The agent may be autonomous in execution. Intent, boundaries, and evidence remain yours.</strong></aside><aside class="callout"><span>START HERE</span><strong>Begin with one agent and one skill. Add parallelism only when the tasks are truly independent.</strong></aside>
 <section class="sources"><div class="section-label"><span>Keep learning</span><span>12 new readings + primary docs</span></div><p>Go deeper with official documentation, production case studies, Medium, and practitioner workflows. <a href="docs/references/README.md">Primary references →</a> <a href="docs/references/additional-reading.md">12-part reading path →</a></p></section>
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 .worker-card:focus-visible,.tree-node:focus-visible,.route-table button:focus-visible,.skill-package button:focus-visible{outline:3px solid var(--gold);outline-offset:-3px}
+
+/* Skill shelf */
+.skill-catalog{margin-bottom:130px;padding-top:80px;border-top:1px solid var(--line)}
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@@ -6,8 +6,8 @@ const refs = read('docs/references/README.md');
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+for (const token of ['data-phase="plan"','data-phase="build"','data-phase="review"','data-tree="main"','data-tree="ui"','data-worker="ui"','data-route="plan"','data-skill-file="skill"','data-common-skill="ponytail"','data-common-skill="caveman"','data-common-skill="unlazy"','additional-reading.md','role="tablist"','<table']) if (!html.includes(token)) throw new Error(`missing content ${token}`);
-for (const token of ['const phases','addEventListener','render(\'plan\')','renderTree','renderWorker','renderRoute','renderSkillFile']) if (!js.includes(token)) throw new Error(`missing interaction ${token}`);
+for (const token of ['const phases','addEventListener','render(\'plan\')','renderTree','renderWorker','renderRoute','renderSkillFile','renderCommonSkill']) if (!js.includes(token)) throw new Error(`missing interaction ${token}`);
 for (const token of ['medium.com','anthropic.com/engineering','openai.com/business','git-scm.com/docs/git-worktree']) if (!additional.includes(token)) throw new Error(`missing additional source ${token}`);
 if ((additional.match(/^### \d+\./gm) || []).length < 5) throw new Error('fewer than five additional readings');
 console.log('interaction verification passed');