Backend engineer who ships
agentic CLI tooling. Ingeniero backend que construye
herramientas CLI agentivas.

I build backends that stay out of the way and CLI skills that make AI agents actually useful.

Construyo backends que no estorban y skills CLI que hacen que los agentes IA sean realmente útiles.

runtimes

CLI skills

works

03y

backend in prod

runtimes

skills CLI

proyectos

03y

backend en prod

01 /

whoami

Multi-runtime backend developer working across Node, Python, Go, and PHP. I care about clean architecture, fast deploys, and systems that do one thing well.

For the past year I've been deep in agentic tooling — building skills for Claude Code, OpenCode, and Gemini CLI. The interface between humans and models is where the interesting problems live.

I believe in learning by shipping. Every project in this portfolio exists because I needed to solve a real problem, not because I wanted something to put in a portfolio.

Based in Colombia. Available for remote backend or AI-tooling roles.

Desarrollador backend multi-runtime trabajando con Node, Python, Go y PHP. Me importa la arquitectura limpia, los deploys rápidos y los sistemas que hacen una sola cosa bien.

Durante el último año estuve metido en herramientas agentivas — construyendo skills para Claude Code, OpenCode y Gemini CLI. La interfaz entre humanos y modelos es donde viven los problemas interesantes.

Creo en aprender haciendo. Cada proyecto en este portfolio existe porque necesité resolver un problema real, no porque quería algo para mostrar.

Basado en Colombia. Disponible para roles remotos de backend o AI-tooling.

02 /

stack & deps stack & deps

[+] NestJS production API framework of choice framework API principal en producción primary

[+] Django data-heavy backends and rapid prototypes backends con datos pesados y prototipos rápidos primary

[+] Golang CLI tooling and performance-critical paths herramientas CLI y paths críticos de rendimiento primary

[+] Laravel legacy systems and monolith-first projects sistemas legacy y proyectos monolito-first primary

[x] AWS EC2, S3, RDS, Lambda — daily driver EC2, S3, RDS, Lambda — uso diario infra

[-] Postgres default database for everything relational base de datos predeterminada para todo lo relacional data

[-] Docker local dev, CI pipelines, prod containers dev local, pipelines CI, contenedores prod infra

[x] Claude / OpenCode / Gemini agentic CLI skill targets targets de skills CLI agentivos ai

03 /

selected work trabajo seleccionado

› skills-kit 2025 open source

ShellMarkdownClaude CodeOpenCodeGemini CLI

Agent skills for repo setup, multi-CLI workflows, context loading, and API testing.

Skills de agente para setup de repos, workflows multi-CLI, carga de contexto y testing de APIs.

4 protocol-first skills: git-setup, swarm-forge, path-context, api-test
Multi-CLI support: Claude Code, OpenCode, Codex, and Gemini CLI
Install as a kit: npx skills add fxckcode/skills-kit

4 skills protocol-first: git-setup, swarm-forge, path-context, api-test
Soporte multi-CLI: Claude Code, OpenCode, Codex y Gemini CLI
Instalación como kit: npx skills add fxckcode/skills-kit

npx skills add fxckcode/skills-kit

› CaS — CLI as a Service 2025 reference arch

TypeScriptGoTerraformK8s

Reference architecture for corporate autonomous agents with policy control, isolated execution, and persistent memory.

Arquitectura de referencia para agentes autónomos corporativos con control de políticas, ejecución aislada y memoria persistente.

Control plane with orchestrator, planner, policy engine, and tools registry
Isolated execution runners (shell, CI/CD, data) with autonomy modes
Persistent org/project memory with semantic retrieval for long-running goals

Control plane con orquestador, planificador, motor de políticas y registro de herramientas
Runners aislados (shell, CI/CD, datos) con modos de autonomía
Memoria persistente de org/proyecto con recuperación semántica para objetivos de largo plazo

github.com/fxckcode/CaS

› webinfo 2024 cli tool

GoCobraRestyWappalyzer

Go-powered CLI that analyzes website infrastructure, security, and configuration in seconds.

CLI en Go que analiza infraestructura web, seguridad y configuración en segundos.

HTTP inspection + SSL/TLS certificate analysis + technology fingerprinting
DNS records (A, AAAA, MX, NS, TXT, CNAME) and WHOIS lookup
Built with Cobra CLI, Resty HTTP client, WappalyzerGo for tech detection

Inspección HTTP + análisis de certificados SSL/TLS + detección de tecnologías
Registros DNS (A, AAAA, MX, NS, TXT, CNAME) y consulta WHOIS
Diagnóstico con un solo comando: go install github.com/fxckcode/webinfo@latest

go install github.com/fxckcode/webinfo@latest

04 /

cli skills cli skills

git-setup-skill

Professional Git/GitHub repo setup: .gitignore, .gitattributes, README, licensing, metadata, tags, releases, and Actions. Configuración profesional de repos Git/GitHub: .gitignore, .gitattributes, README, licencias, metadata, tags, releases y Actions.

gitgithubci

swarm-forge-skill

Multi-CLI agent workflow setup across Claude Code, Codex, OpenCode, and Gemini CLI using TDD, BDD, ATDD, or SDD. Configura multi-agente para Claude Code, Codex, OpenCode y Gemini CLI con patrones TDD, BDD, ATDD o SDD.

agentsworkflowmulti-cli

path-context-skill

Loads external project folders as reference context with a 6-pass discovery heuristic and strict token budget. Carga carpetas de proyectos externos como contexto de referencia con descubrimiento heurístico y presupuesto de tokens.

contextdiscoveryworkflow

api-test-skill

Protocol-first, client-agnostic REST API testing from the terminal with auth inference, chaining, and assertions. Pruebas REST API protocol-first desde la terminal con inferencia de auth, encadenamiento y aserciones.

testingapirest

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