project-starter-template-es-ai: Skill for Claude Code

.claude/skills/copywriting/SKILL.md

copywriting is a skill for Claude Code from brayandiazc/project-starter-template-es-ai. It costs 99 tokens per session (460 once invoked), scanned A, original, MIT.

A guide for writing or reviewing text that people see in a product, including interface labels, headings, buttons, errors, and marketing copy. It matches the project's existing voice and terminology.

In plain words
What is it for?
Use it to create or improve interface messages, calls to action, empty states, error messages, and other visible copy.
Why use it?
It helps make user-facing text clear, consistent, and useful across the product.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is brayandiazc/project-starter-template-es-ai's own configuration. It tells Claude Code how to work on project-starter-template-es-ai itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything project-starter-template-es-ai configures →

Reuse

Borrowing it

Nothing to install: this file belongs to brayandiazc/project-starter-template-es-ai. 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/brayandiazc/project-starter-template-es-ai/main/.claude/skills/copywriting/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/brayandiazc/project-starter-template-es-ai

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.

agentmods badge for copywriting

README.md
[![agentmods](https://agentmods.dev/badge/skills/brayandiazc/project-starter-template-es-ai/copywriting/github.svg)](https://agentmods.dev/skills/brayandiazc/project-starter-template-es-ai/copywriting)
Your own site
<a href="https://agentmods.dev/skills/brayandiazc/project-starter-template-es-ai/copywriting"><img src="https://agentmods.dev/badge/skills/brayandiazc/project-starter-template-es-ai/copywriting/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.

agentmods 80×15 button for copywriting

Your own site · 80×15
<a href="https://agentmods.dev/skills/brayandiazc/project-starter-template-es-ai/copywriting"><img src="https://agentmods.dev/badge/skills/brayandiazc/project-starter-template-es-ai/copywriting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 460 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00099 $0.00460
Opus 5 $0.00049 $0.00230
Sonnet 5 $0.00020 $0.00092
Haiku 4.5 $0.00010 $0.00046

Measured 3d ago against content hash da44916d7a43, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

copywriting 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 3d 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/skills/copywriting/SKILL.md · 22 lines

What it actually says

Revisa o produce textos visibles para la persona usuaria que coincidan con la voz del proyecto.

  1. Establece la voz y el tono:
    • Si existe un documento de marca/voz/estilo (busca docs/brand/, docs/voice.md, docs/conventions/copy.md, STYLEGUIDE.md o similar), léelo y síguelo.
    • De lo contrario, infiere la voz a partir de los textos existentes en el producto (cadenas de UI, README, landing page) y mantén la coherencia con ellos.
  2. Confirma el contexto: qué superficie es esta (botón, error, onboarding, marketing), la audiencia y el objetivo del texto.
  3. Aplica los principios comunes de copy, anulados por el documento/voz del proyecto:
    • Sé claro y conciso; encabeza con el beneficio para la persona usuaria.
    • Usa terminología y capitalización consistentes.
    • Escribe etiquetas de botón/CTA accionables; haz que los mensajes de error expliquen qué pasó y qué hacer a continuación.
    • Respeta la i18n — puede que el copy deba añadirse como claves de traducción (consulta el skill i18n-parity).
  4. Entrega el copy (o las ediciones) más una justificación de una línea que vincule cada elección con la voz/los principios. Ofrece 1-2 alternativas para las cadenas clave.

Ejemplo: botón SubmitCreate account (más claro, indica el resultado).

NO inventes hechos del producto, afirmaciones legales ni funcionalidades que no existen. NO cambies la terminología establecida del producto sin señalarlo.

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. 3d ago Changed · -2 lines da44916d7a43
  2. 10d ago First seen · 24 lines · 99 tokens per session scan A e13944695c65

Subscribe to this mod's changes

copywriting is a skill published in the GitHub repository brayandiazc/project-starter-template-es-ai (15 stars, last pushed 4d ago), licensed MIT. It adds 99 tokens to every session and 460 once invoked, about $0.0005 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 2026-09-01.