checklist

checklist is a skill for Claude Code, Codex from JotJunior/cstk. It costs 49 tokens per session (3,602 once invoked), scanned A, original, MIT.

A quality checklist for written software requirements, organized by areas such as user experience, APIs, security, performance, and accessibility. It checks the requirements themselves, not the finished code.

In plain words
What is it for?
Use it as a requirements quality gate when reviewing a specification, either with traceable checks tied to that document or as a general checklist.
Why use it?
It finds vague, incomplete, or untestable wording before development. This makes requirements easier for people to understand and verify.

Skill for Claude CodeCodex

Part of the cstk plugin — 21 skills, 7 commands, 7 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/jotjunior/cstk/checklist
Any agent
npx skills add JotJunior/cstk --skill checklist
Clone the repo
git clone --depth 1 https://github.com/JotJunior/cstk

Made for: Claude Code, Codex.

Or install cstk, the plugin that ships this one along with the rest of its 21 skills, 7 commands, 7 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 checklist

README.md
[![agentmods](https://agentmods.dev/badge/skills/jotjunior/cstk/checklist.svg)](https://agentmods.dev/skills/jotjunior/cstk/checklist)
Your own site
<a href="https://agentmods.dev/skills/jotjunior/cstk/checklist"><img src="https://agentmods.dev/badge/skills/jotjunior/cstk/checklist.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,602 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00049 $0.03602
Opus 5 $0.00024 $0.01801
Sonnet 5 $0.00010 $0.00720
Haiku 4.5 $0.00005 $0.00360

Measured 4d ago against content hash 91813dde4e58, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

checklist 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 4d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/requirement-coverage.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/cstk/skills/checklist/SKILL.md · 335 lines

How it starts

The opening of the file, as written. The whole thing — 335 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Checklist de Qualidade de Requisitos

Gere checklists que validam a QUALIDADE dos requisitos — nao da implementacao. Conceito: "Unit Tests for English".

Pre-requisitos

Recomendado: spec.md existente para referenciar requisitos. Sem spec, a skill pode gerar um checklist generico de qualidade de requisitos, mas a rastreabilidade ([Spec §X.Y]) fica comprometida.

Proximos passos

  1. Revisar o checklist e marcar items atendidos
  2. /clarify — para resolver items que revelaram ambiguidades
  3. /plan ou /create-tasks — prosseguir no fluxo SDD se o gate passou

Argumentos

$ARGUMENTS


CONCEITO FUNDAMENTAL

Checklists sao UNIT TESTS PARA REQUISITOS — validam qualidade, clareza e completude dos requisitos escritos em linguagem natural.

NAO sao para verificacao/teste de implementacao:

  • Errado: "Verificar se o botao funciona corretamente"
  • Errado: "Testar se a API retorna 200"
  • Errado: "Confirmar que o error handling funciona"

SAO para validacao de qualidade dos requisitos:

  • Correto: "Sao os requisitos de hierarquia visual definidos para todos os tipos de card?"
  • Correto: "E 'exibicao proeminente' quantificado com sizing/positioning especificos?"
  • Correto: "Sao os requisitos de hover state consistentes entre todos os elementos interativos?"
  • Correto: "Sao os requisitos de acessibilidade definidos para navegacao por teclado?"

FLUXO DE EXECUCAO

1. CONTEXTO        Localizar artefatos da feature
     |
2. CLARIFICACAO    Perguntas de escopo (max 3)
     |
3. GERACAO         Criar items (com dono {auto}/{humano}) e auto-resolver {auto}
     |
4. SALVAMENTO      Salvar, consolidar follow-up dos gaps e reportar

ETAPA 1: CONTEXTO

1.1 Localizar Artefatos

Buscar artefatos da feature:

  1. docs/specs/*/spec.md — requisitos e escopo
  2. docs/specs/*/plan.md — detalhes tecnicos
  3. docs/specs/*/tasks.md — tarefas de implementacao

Carregar apenas porcoes relevantes (progressive disclosure, nao dump completo).

Read the full file on GitHub · 335 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 335 lines · 49 tokens per session scan A 91813dde4e58

Subscribe to this mod's changes

checklist is a skill published in the GitHub repository JotJunior/cstk (22 stars, last pushed 4d ago), licensed MIT. It adds 49 tokens to every session and 3,602 once invoked, about $0.0002 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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