writing-skills

writing-skills is an agent for Claude Code from origammi-digital/agents-marketplace. It costs 81 tokens per session (3,067 once invoked), scanned A, original, no licence file.

Orientação para criar, editar e revisar skills, que são instruções reutilizáveis para agentes de programação. Explica como escrever descrições que indiquem quando uma skill deve ser acionada e como organizar diferentes tipos de skill.

In plain words
What is it for?
Serve para escrever novas skills, melhorar as existentes e investigar por que uma skill não está sendo acionada em um marketplace de add-ons.
Why use it?
Ajuda a evitar instruções vagas ou skills que não são usadas quando deveriam. Também oferece critérios para revisar o texto e o comportamento esperado.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the meta plugin — 2 skills, 2 agents shipped together

Good fit Serve para escrever novas skills, melhorar as existentes e investigar por que uma skill não está sendo acionada em um marketplace de add-ons.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/origammi-digital/agents-marketplace/writing-skills
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/origammi-digital/agents-marketplace

Made for: Claude Code.

Or install meta, the plugin that ships this one along with the rest of its 2 skills, 2 agents.

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 writing-skills

README.md
[![agentmods](https://agentmods.dev/badge/agents/origammi-digital/agents-marketplace/writing-skills/github.svg)](https://agentmods.dev/agents/origammi-digital/agents-marketplace/writing-skills)
Your own site
<a href="https://agentmods.dev/agents/origammi-digital/agents-marketplace/writing-skills"><img src="https://agentmods.dev/badge/agents/origammi-digital/agents-marketplace/writing-skills/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 writing-skills

Your own site · 80×15
<a href="https://agentmods.dev/agents/origammi-digital/agents-marketplace/writing-skills"><img src="https://agentmods.dev/badge/agents/origammi-digital/agents-marketplace/writing-skills.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,067 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 unknown 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 $0.00081 $0.03067
Opus 5 $0.00041 $0.01533
Sonnet 5 $0.00016 $0.00613
Haiku 4.5 $0.00008 $0.00307

Measured 12d ago against content hash cf6aee9de63f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

writing-skills 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 12d 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.

plugins/meta/agents/writing-skills.md · 160 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 12d ago First seen · 160 lines · 81 tokens per session scan A cf6aee9de63f

Subscribe to this mod's changes

writing-skills is an agent published in the GitHub repository origammi-digital/agents-marketplace (2 stars, last pushed 2d ago), with no licence file. It adds 81 tokens to every session and 3,067 once invoked, about $0.0004 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 2026-08-31.

Related

Other agents, from other repositories