execute-task

execute-task is a skill for Claude Code from JotJunior/cstk. It costs 63 tokens per session (6,389 once invoked), scanned A, original, MIT.

A guided workflow for completing one project task from a task list, with required checks at each step.

In plain words
What is it for?
Use it to select a pending task, read the related project documents, implement the task, and continue through the required completion checks.
Why use it?
It keeps implementation work aligned with the project's existing specifications and process, reducing skipped steps and unfinished dependencies.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: reads .claude/ paths; mentions CLAUDE.md.

Part of the cstk plugin — 23 skills, 7 commands, 7 agents, 1 MCP server shipped together

Good fit Use it to select a pending task, read the related project documents, implement the task, and continue through the required completion checks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jotjunior/cstk/execute-task
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.

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

Made for: Claude Code.

Or install cstk, the plugin that ships this one along with the rest of its 23 skills, 7 commands, 7 agents, 1 MCP server.

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 execute-task

README.md
[![agentmods](https://agentmods.dev/badge/skills/jotjunior/cstk/execute-task/github.svg)](https://agentmods.dev/skills/jotjunior/cstk/execute-task)
Your own site
<a href="https://agentmods.dev/skills/jotjunior/cstk/execute-task"><img src="https://agentmods.dev/badge/skills/jotjunior/cstk/execute-task/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 execute-task

Your own site · 80×15
<a href="https://agentmods.dev/skills/jotjunior/cstk/execute-task"><img src="https://agentmods.dev/badge/skills/jotjunior/cstk/execute-task.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,389 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 4 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 138
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 453
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Rogue Agent · line 7
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
  • medium MCP Rug Pull · line 139
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
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 $0.00063 $0.06389
Opus 5.5 $0.00025 $0.02556
Sonnet 5.5 $0.00013 $0.01278
Haiku 4.5 $0.00006 $0.00639

Measured 17d ago against content hash dde39b29ea7d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

execute-task scanned grade A with 1 finding 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 17d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| Forma de payload | curl/fetch real, NUNCA fixture/mock |
plugins/cstk/skills/execute-task/SKILL.md · 643 lines

How it starts

The opening of the file, as written. The whole thing — 643 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Executar Tarefa

Execute uma tarefa especifica do projeto seguindo o fluxo obrigatorio de execucao.

Pre-requisitos

Obrigatorio: arquivo de tasks existente contendo a tarefa a executar. Localizacoes suportadas: docs/specs/*/tasks.md (SDD), docs/tasks.md, docs/tasks-*.md, tasks.md, TODO.md.

Recomendado: spec.md, plan.md e documentacao relacionada ja existentes (a Etapa 1 da skill le esses antes de comecar).

Proximos passos

  1. /execute-task {proxima-id} — continuar com a proxima tarefa pendente
  2. Backlog esgotado (nenhuma tarefa - [ ]/- [~] remanescente)? Rode /converge <feature-dir> antes de /review-task — reconcilia spec/plano/codigo com o estado atual do codigo (ETAPA 8.3, FR-002 da feature pipeline-converge). Excecao: feature sem tasks.md/backlog (nunca passou por create-tasks) — nenhuma orientacao nova (FR-005)
  3. /review-task — revisar progresso e identificar dependencias desbloqueadas
  4. /analyze — se suspeita de drift entre implementacao e spec

Tarefa Solicitada

$ARGUMENTS


Leitura de artefatos foundational (briefing + constitution)

Quando a tarefa em execucao precisar consultar docs/briefing.md (ou o legado docs/01-briefing-discovery/briefing.md) ou docs/constitution.md (por exemplo, ETAPA 1 ANALISE ou ETAPA 6 VALIDACAO contra MUSTs), verifique se ha cache valido populado pelo agente-00c ou feature-00c. Aditivo — se nao houver cache, leia direto do disco conforme comportamento padrao (FR-CACHE-014).

  1. Detectar agente ativo: variavel AGENTE_00C_STATE_DIR setada, OU <projeto-alvo>/.claude/agente-00c-state/state.json existente, OU <projeto-alvo>/.claude/feature-00c-state/<short>/state.json.

  2. Se ativo, tente consumir o resumo via Bash:

    ~/.claude/skills/agente-00c-runtime/scripts/state-cache.sh get-resumo \
      --state-dir "$SD" --artifact briefing
    
    • Exit 0 + stdout nao-vazio: use o resumo como conteudo.
    • Exit 1: cache miss — caia em leitura direta.
    • Exit 2: erro fatal — aborte com diagnostico.

Read the full file on GitHub · 643 lines

Files

What ships with it

1 file 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. 17d ago Changed dde39b29ea7d
  2. 1mo ago First seen · 643 lines · 63 tokens per session scan A c2cd4e10b9a8

Subscribe to this mod's changes

execute-task is a skill published in the GitHub repository JotJunior/cstk (24 stars, last pushed 8d ago), licensed MIT. It adds 63 tokens to every session and 6,389 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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