An onboarding command for creating a WhatsApp business assistant with AgentKit. It reads project instructions, checks the environment, asks business questions, and generates the assistant's files and configuration.

Use it to set up a Python-based WhatsApp agent, connect a selected WhatsApp provider, add business knowledge, and generate its API, memory, and configuration files.

It replaces a lengthy setup process with a guided sequence that collects the required business and provider details.

How alanjmr21/whatsapp-agent-kit configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to alanjmr21/whatsapp-agent-kit. 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/alanjmr21/whatsapp-agent-kit/main/.claude/commands/build-agent.md

Clone the repo

git clone --depth 1 https://github.com/alanjmr21/whatsapp-agent-kit

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/commands/alanjmr21/whatsapp-agent-kit/build-agent/github.svg)](https://agentmods.dev/commands/alanjmr21/whatsapp-agent-kit/build-agent)

Your own site

<a href="https://agentmods.dev/commands/alanjmr21/whatsapp-agent-kit/build-agent"><img src="https://agentmods.dev/badge/commands/alanjmr21/whatsapp-agent-kit/build-agent/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/commands/alanjmr21/whatsapp-agent-kit/build-agent"><img src="https://agentmods.dev/badge/commands/alanjmr21/whatsapp-agent-kit/build-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 508 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	$0.00000	$0.00508
Opus 5.5	$0.00000	$0.00203
Sonnet 5.5	$0.00000	$0.00102
Haiku 4.5	$0.00000	$0.00051

Measured 2mo ago against content hash 3ec56b1cb9ec, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

build-agent 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 2mo 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/commands/build-agent.md · 50 lines

What it actually says

Lee el archivo CLAUDE.md completo. Contiene todas las instrucciones detalladas.

Ejecuta el flujo de onboarding de AgentKit siguiendo las 5 fases EN ORDEN:

FASE 1 — Bienvenida y verificación del entorno

Muestra el mensaje de bienvenida
Verifica Python >= 3.11
Crea las carpetas necesarias (agent/, agent/providers/, config/, knowledge/, tests/)
Genera requirements.txt e instala dependencias
Crea .env base

FASE 2 — Entrevista del negocio

Haz las 10 preguntas UNA POR UNA
Espera respuesta antes de continuar a la siguiente
PREGUNTA 9: el usuario elige su proveedor de WhatsApp (Whapi/Meta/Twilio)
PREGUNTA 10: pide las credenciales específicas del proveedor elegido
Guarda todas las respuestas para la Fase 3

FASE 3 — Generación del agente

Genera config/business.yaml con datos del negocio
Genera config/prompts.yaml con system prompt poderoso y específico
Si hay archivos en /knowledge, léelos e incorpóralos al prompt
Genera agent/providers/ con el proveedor elegido (base.py + init.py + adaptador)
Genera agent/main.py (FastAPI + webhook provider-agnostic)
Genera agent/brain.py (Claude API)
Genera agent/memory.py (SQLite + historial)
Genera agent/tools.py (herramientas según caso de uso)
Genera tests/test_local.py (simulador de chat)
Genera Dockerfile y docker-compose.yml
Configura .env con WHATSAPP_PROVIDER y las API keys del usuario

FASE 4 — Testing local

Ejecuta python tests/test_local.py
El usuario chatea con su agente en la terminal
Si hay ajustes, modifica prompts.yaml y repite
No avanza sin aprobación del usuario

FASE 5 — Deploy a Railway

Solo si el usuario quiere
Build Docker + instrucciones de Railway
Configuración de webhook específica para el proveedor elegido

REGLAS:

Habla siempre en español
Una pregunta a la vez
Nunca hardcodees API keys
No avances de fase sin confirmación
El agente debe funcionar antes de hablar de deploy
Genera SOLO el adaptador del proveedor elegido (no los 3)

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.

2mo ago First seen · 50 lines · 0 tokens per session scan A 3ec56b1cb9ec

Subscribe to this mod's changes

build-agent is a command published in the GitHub repository alanjmr21/whatsapp-agent-kit (14 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 508 tokens. 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.

Building agents

build-agent next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
build-agentalanjmr21/whatsapp-agent-kit	Command	14	6mo ago	MIT	A	0	Claude Code
checklistgithub/spec-kit	Command	148k	today	MIT	A	13	Claude Code
clarifygithub/spec-kit	Command	148k	today	MIT	A	27	Claude Code
specifygithub/spec-kit	Command	148k	today	MIT	A	13	Claude Code
analyzegithub/spec-kit	Command	148k	today	MIT	A	26	Claude Code
convergegithub/spec-kit	Command	148k	today	MIT	A	35	Claude Code
implementgithub/spec-kit	Command	148k	today	MIT	A	14	Claude Code

whatsapp-agent-kit: Command for Claude Code