Api client

Skill MauricioPerera/llms-txt-skills/skills/api-client

RFC v0.8 + implementación de referencia para publicar Agent Skills a través de llms.txt. Incluye parser, validador, schema JSON y skills de ejemplo.

Install

npx -y skills add MauricioPerera/llms-txt-skills --skill api-client

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Patterns for consuming the img.automators.work placeholder image API via HTTP. Use when building HTML mockups, CSS backgrounds, or design prototypes that need SVG placeholder images of specific dimensions and colors.

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SKILL.md

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api-client

Patterns for calling the img.automators.work HTTP API to generate SVG placeholder images.

When to use

The user needs a placeholder image for a UI mockup.
The user wants an SVG with specific dimensions ({width}x{height}).
The user wants a colored background (?bg={hex6}).
The user is building HTML or CSS that references a placeholder image.

Do NOT use this skill for:

Production images, photography, or real content.
Images larger than 4000px in any dimension.
When the user is already using a design system with built-in skeleton components.

Base URL

https://img.automators.work

Endpoint

GET /{width}x{height}[?bg={hex6}]

width, height: integers in px, each <= 4000.
bg (optional): 6-digit hex without #. Defaults to cccccc.

Python request pattern

import urllib.request

url = "https://img.automators.work/400x300?bg=1e3a5f"
req = urllib.request.Request(url, headers={"Accept": "image/svg+xml"})
with urllib.request.urlopen(req, timeout=15) as resp:
    svg = resp.read().decode("utf-8")

Error handling

import urllib.error

try:
    with urllib.request.urlopen(req, timeout=15) as resp:
        svg = resp.read().decode("utf-8")
except urllib.error.HTTPError as e:
    if e.code == 400:
        raise RuntimeError("Invalid dimensions: must be integers in format {width}x{height}")
    raise RuntimeError(f"HTTP {e.code}: {e.reason}")
except urllib.error.URLError as e:
    raise RuntimeError(f"Connection failed: {e.reason}")

Constraints

Stateless, no auth, no rate limit beyond Cloudflare platform default.
Responses are immutable and cached one year.
Only endpoint is /{W}x{H}. Do not invent paths.

Failure modes

HTTP 400: width or height is not an integer, or path does not match {int}x{int}.
Invalid bg: SVG still returns but with default gray background (cccccc).