dev-technical-writing

dev-technical-writing is a skill for Claude Code from joaoguirunas/team-os. It costs 36 tokens per session (972 once invoked), scanned A, original, MIT.

A guide to writing technical documents such as Architecture Decision Records, module specifications, and decision logs in Markdown, with Mermaid diagrams for readable technical drawings.

In plain words
What is it for?
It is for architects and technical leads documenting designs, module responsibilities, trade-offs, and system diagrams.
Why use it?
It helps teams record why decisions were made and how complex parts of a system are structured.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit It is for architects and technical leads documenting designs, module responsibilities, trade-offs, and system diagrams.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/joaoguirunas/team-os/dev-technical-writing
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.

Any agent
npx skills add joaoguirunas/team-os --skill dev-technical-writing
Clone the repo
git clone --depth 1 https://github.com/joaoguirunas/team-os

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 dev-technical-writing

README.md
[![agentmods](https://agentmods.dev/badge/skills/joaoguirunas/team-os/dev-technical-writing/github.svg)](https://agentmods.dev/skills/joaoguirunas/team-os/dev-technical-writing)
Your own site
<a href="https://agentmods.dev/skills/joaoguirunas/team-os/dev-technical-writing"><img src="https://agentmods.dev/badge/skills/joaoguirunas/team-os/dev-technical-writing/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 dev-technical-writing

Your own site · 80×15
<a href="https://agentmods.dev/skills/joaoguirunas/team-os/dev-technical-writing"><img src="https://agentmods.dev/badge/skills/joaoguirunas/team-os/dev-technical-writing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 972 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 $0.00036 $0.00972
Opus 5.5 $0.00014 $0.00389
Sonnet 5.5 $0.00007 $0.00194
Haiku 4.5 $0.00004 $0.00097

Measured 27d ago against content hash e6d324b03a73, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dev-technical-writing 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 27d 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/dev-technical-writing/SKILL.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Technical Writing para Software Complexo

ADR — Architecture Decision Record

Toda decisão arquitetural relevante deve ser documentada em docs/decisions/YYYY-MM-DD-{slug}.md.

Template ADR

# ADR-{NNN}: {Título da Decisão}

**Data:** YYYY-MM-DD
**Status:** Proposto | Aceito | Depreciado | Substituído por ADR-{NNN}
**Contexto:** {O problema que precisa ser resolvido. Forças em jogo.}

## Decisão

{A decisão tomada, explicada de forma direta.}

## Consequências

**Positivas:**
- {benefício 1}

**Negativas:**
- {trade-off 1}

## Alternativas Consideradas

| Alternativa | Por que descartada |
|---|---|
| {opção A} | {motivo} |

## Diagrama (se aplicável)

\`\`\`mermaid
graph TD
    A[Cliente] --> B[API Gateway]
    B --> C[Auth Service]
    B --> D[Core Service]
\`\`\`

Module Spec

Documentação de módulo em docs/modules/{module-name}.md.

Template Module Spec

# Módulo: {Nome}

**Responsabilidade:** {Uma frase descrevendo o que este módulo faz}
**Owner:** {Agente ou pessoa responsável}

## Interface pública

\`\`\`typescript
// Exports principais
export function {functionName}(params: {ParamsType}): {ReturnType}
\`\`\`

## Dependências

- **Requer:** {módulos que este consome}
- **Expõe para:** {módulos que consomem este}

## Fluxo de dados

\`\`\`mermaid
sequenceDiagram
    participant C as Client
    participant M as {Module}
    participant D as Database
    C->>M: request
    M->>D: query
    D-->>M: result
    M-->>C: response
\`\`\`

## Decisões relevantes

- [ADR-{NNN}]({link}) — {título}

Smart Memory — Formato Obsidian

Documentos em docs/smart-memory/ usam frontmatter com links relativos para navegação:

---
title: {Título}
type: overview | story | decision | schema | research | task-log
agent: {nome-do-agente}
created: YYYY-MM-DD
updated: YYYY-MM-DD
tags: [tag1, tag2]
related: ["[[caminho/relativo]]"]
---

Links internos entre documentos: [[caminho/relativo]] — compatível com Obsidian.

Read the full file on GitHub · 156 lines

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. 27d ago Changed e6d324b03a73
  2. 1mo ago First seen · 156 lines · 36 tokens per session scan A 7b475d0a979f

Subscribe to this mod's changes

dev-technical-writing is a skill published in the GitHub repository joaoguirunas/team-os (5 stars, last pushed 3d ago), licensed MIT. It adds 36 tokens to every session and 972 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-03.

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