A planning skill that turns a requested feature or behavior change into a checked specification before coding starts. It classifies the change, asks about unresolved decisions, and writes the required project documents.

Defining new features, endpoints, screens, or behavior changes in a numbered specification and preparing the questions and acceptance details developers need.

It prevents implementation from starting with unclear requirements, hidden assumptions, or conflicts with the project's governance rules.

How darcivieira/kanbanize-sdk configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to darcivieira/kanbanize-sdk. 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/darcivieira/kanbanize-sdk/main/.claude/skills/spec-nova/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/darcivieira/kanbanize-sdk

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/skills/darcivieira/kanbanize-sdk/spec-nova/github.svg)](https://agentmods.dev/skills/darcivieira/kanbanize-sdk/spec-nova)

Your own site

<a href="https://agentmods.dev/skills/darcivieira/kanbanize-sdk/spec-nova"><img src="https://agentmods.dev/badge/skills/darcivieira/kanbanize-sdk/spec-nova/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/skills/darcivieira/kanbanize-sdk/spec-nova"><img src="https://agentmods.dev/badge/skills/darcivieira/kanbanize-sdk/spec-nova.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 656 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.

Model	Per session	Once invoked
Fable 5.1	$0.00105	$0.00656
Opus 5	$0.00053	$0.00328
Sonnet 5	$0.00021	$0.00131
Haiku 4.5	$0.00011	$0.00066

Measured 6d ago against content hash 4d5089a9d8fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

spec-nova 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 6d 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/skills/spec-nova/SKILL.md · 59 lines

What it actually says

spec-nova

Transforma um pedido em requisito verificável antes de existir código.

Passo 1 — Classificar

Leia specs/governanca/03-limites-agente.md e declare no formato:

CLASSIFICAÇÃO: 🟡 YELLOW
MOTIVO: <uma frase>

Se for 🟢 GREEN, não crie spec. Diga que é GREEN e implemente direto — burocracia em mudança trivial destrói a adesão ao processo.

Passo 2 — Contexto

Carregue o mínimo: governanca/01-constituicao.md, visao/GLOSSARIO.md, e os modulos/ ou ui/telas/ que o pedido toca. Não carregue specs/ inteiro.

Verifique specs/ACTIVE.md. Se já houver mudança em curso, pergunte antes de abrir outra — duas frentes simultâneas é como o processo apodrece.

Passo 3 — Interrogar

Escreva o rascunho e marque cada suposição com [PRECISA DECISÃO]. Depois pergunte apenas sobre elas — no máximo 5 por vez, com opções concretas, não perguntas abertas.

Perguntas que sempre valem a pena:

O que acontece no caminho infeliz? (dado ausente, permissão negada, serviço fora)
Isso muda algo que já está em produção?
Qual o comportamento com volume grande / lista vazia?
Quem pode fazer isso?

Passo 4 — Escrever

Numere o diretório: próximo NNN livre em specs/mudancas/, 3 dígitos. Use specs/_templates/MUDANCA-spec.md. Preencha tudo, especialmente:

Fora de escopo — o que impede expansão silenciosa
RF numerados e testáveis — se não dá para escrever o teste, o RF está vago
Critérios de aceite em Dado/Quando/Então
Impacto no existente com caminhos reais, obtidos por leitura do código

Atualize specs/ACTIVE.md com o id da mudança.

Passo 5 — Parar

Nenhum [PRECISA DECISÃO] pode sobreviver. Resolva todos com o humano.

Depois: apresente um resumo curto e pare. Não gere plano, não escreva código. O próximo passo é a skill spec-plano, e ele é do humano.

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.

6d ago First seen · 59 lines · 105 tokens per session scan A 4d5089a9d8fe

Subscribe to this mod's changes

spec-nova is a skill published in the GitHub repository darcivieira/kanbanize-sdk (2 stars, last pushed 28d ago), licensed MIT. It adds 105 tokens to every session and 656 once invoked, about $0.0005 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 2026-09-04.

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kanbanize-sdk: Skill for Claude Code