---
title: "My first agent-skill for ESM validation"
description: "A first agent-skill for Tequila was built and published: three ESM compatibility checks, from issue to npm package in about 40 minutes."
date: 2026-03-26
display_date: "March 26, 2026"
image: "/img/brand/agent-skills-cover.png"
image_alt: "My first agent-skill for ESM validation"
---

# My first agent-skill for ESM validation

<zoom-img src="/img/brand/agent-skills-cover.png"
        alt="My first agent-skill for ESM validation" width="100px"></zoom-img>

With help from Codex, I built my first **agent-skill** for the Tequila platform:
        a validator for ESM code compatibility with the project setup. It ended up being just three checks,
        but the full path from task brief to working result made the process easy to follow.

The publication itself took about 40 minutes, from the first issue to the package being published on npm.
        For me, the lesson was clear: this kind of work can be carried almost entirely by the agent. Agent-skill
        development was new to me, yet the route from idea to publication proved manageable without
        digging into every detail by hand.

The package is here:
        [@flancer32/skill-teqfw-esm-validator](https://www.npmjs.com/package/@flancer32/skill-teqfw-esm-validator).