implementar

implementar is a command for Claude Code from doncheli/don-cheli-sdd. It costs 19 tokens per session (1,996 once invoked), scanned A, original, Apache-2.0.

An automated implementation command that works through planned tasks in phases, using TDD inside Docker with checkpoints. TDD means writing a failing test first, making it pass, and then improving the code.

In plain words
What is it for?
Use it to execute task files phase by phase, create the initial project files, write unit tests, run them in Docker, and pause at review checkpoints.
Why use it?
It gives implementation a repeatable order and isolated environment while checking that requirements are mapped to tests.

Command for Claude Code

Part of the don-cheli-sdd plugin — 28 skills, 115 commands, 1 agent 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 commands/doncheli/don-cheli-sdd/implementar
Clone the repo
git clone --depth 1 https://github.com/doncheli/don-cheli-sdd

Made for: Claude Code.

Or install don-cheli-sdd, the plugin that ships this one along with the rest of its 28 skills, 115 commands, 1 agent.

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 implementar

README.md
[![agentmods](https://agentmods.dev/badge/commands/doncheli/don-cheli-sdd/implementar.svg)](https://agentmods.dev/commands/doncheli/don-cheli-sdd/implementar)
Your own site
<a href="https://agentmods.dev/commands/doncheli/don-cheli-sdd/implementar"><img src="https://agentmods.dev/badge/commands/doncheli/don-cheli-sdd/implementar.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,996 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 $0.00019 $0.01996
Opus 5 $0.00010 $0.00998
Sonnet 5 $0.00004 $0.00399
Haiku 4.5 $0.00002 $0.00200

Measured yesterday against content hash f75db25eedea, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

implementar 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 yesterday.

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.

scripts/.claude/commands/dc/implementar.md · 228 lines

How it starts

The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/dc:implementar

Objetivo

Ejecutar las tareas generadas por /dc:desglosar de forma automatizada, siguiendo el ciclo TDD (RED → GREEN → REFACTOR) dentro de un entorno Docker aislado, con checkpoints formalizados para intervención humana.

Adaptado del comando speckit.implement de Specular. Mejorado con Taxonomía de Checkpoints de Get Shit Done (gsd-build/get-shit-done).

Uso

/dc:implementar @specs/features/<dominio>/<Feature>.tasks.md
/dc:implementar --fase <numero>
/dc:implementar --seco   # Solo mostrar plan sin ejecutar

Comportamiento

  1. Leer archivo .tasks.md
  2. Verificar que Docker está disponible
  3. Verificar Nyquist — Validar mapeo tests↔requisitos (Puerta 5)
  4. Ejecutar tareas fase por fase con checkpoints

Flujo por Fase

┌─ Fase 1: Setup ───────────────────────────────┐
│  Crear archivos vacíos: modelos, servicios,    │
│  repositorios, controladores, tests            │
│  → Verificar: archivos existen                 │
└────────────────────────────────────────────────┘
         │
┌─ Fase 2: Tests Unitarios (RED) ───────────────┐
│  Escribir tests que FALLAN                     │
│  → docker compose run --rm test                │
│  → Verificar: tests existen y FALLAN (RED)     │
└────────────────────────────────────────────────┘
         │
┌─ Fase 3: Tests BDD/Integración (RED) ────────┐
│  Escribir tests BDD desde Gherkin              │
│  → Aplicar patrones ISA (isa.yml)             │
│  → docker compose run --rm test                │
│  → Verificar: tests BDD existen y FALLAN       │
└────────────────────────────────────────────────┘
         │
┌─ Fase 4: Lógica de Negocio (GREEN) ──────────┐
│  Implementar código que hace pasar los tests   │
│  → docker compose run --rm test                │
│  → [DETECCIÓN STUBS] automática                │
│  → Verificar: TODOS los tests PASAN (GREEN)    │
└────────────────────────────────────────────────┘
         │
┌─ Fase 5: Lint & Tipos ───────────────────────┐
│  → docker compose run --rm lint                │
│  → Verificar: sin errores de lint/tipos        │
└────────────────────────────────────────────────┘

Read the full file on GitHub · 228 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. yesterday First seen · 228 lines · 19 tokens per session scan A f75db25eedea

Subscribe to this mod's changes

implementar is a command published in the GitHub repository doncheli/don-cheli-sdd (57 stars, last pushed 24d ago), licensed Apache-2.0. It adds 19 tokens to every session and 1,996 once invoked, about $0.0001 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 2026-09-03.