Agent skill

Agents Dev

by fazer-ai in fazer-ai/agents

Modo desenvolvedor do fazer.ai agents: trabalhar no código-fonte.

Apache-2.0Auto-check passedDevelopment

Install Agents Dev

skills CLI
$ npx skills add fazer-ai/agents --skill agents-dev -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install fazer-ai/agents agents-dev --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/fazer-ai/agents.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/agents-dev .claude/skills/agents-dev && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
agents-dev
GitHub stars
118
Token cost
~653 tokens
SKILL.md length
255 words
Files
8 (incl. references)
Skills in repo
3
Repo updated
First seen
Licence
Apache-2.0

At a glance

Modo desenvolvedor do fazer.ai agents: trabalhar no código-fonte.

  • Works in 5 steps: Obter o código… → Layout + porta de qualidade… → Aditividade + invariantes… → …
  • Development work in your project
  • SKILL.md covers ⚠️ Distribuição: o Pro é privado, Fluxo, Guardrails and Skills irmãs, plus 1 more section
  • Calls bun

What it does

Agents Dev is an agent skill from fazer-ai/agents. Modo desenvolvedor do fazer.ai agents: trabalhar no código-fonte. Clona o repo (Free público ou Pro via git proxy do hub), orienta nas boas práticas e invariantes (separação Free/Full, aditividade e convenções de docs/), pergunta proativamente o que o usuário quer implementar e conduz a implementação, e ajuda a gerar a própria imagem de deploy. Use quando o usuário quer DESENVOLVER, estender ou contribuir com o código do fazer.ai agents, não apenas subir (onboarding) ou operar (operação) uma instância.

Its SKILL.md is about 650 tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files (for example `gotchas.md`, `guardrails.md` and `references/00-get-the-code.md`).

It sits in Development. It works with Git. The repository describes itself as: fazer.ai agents. Apache 2.0. The licence is Apache-2.0.

When your agent uses it

  • Development work in your project

Example prompts

  • “/agents-dev”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Obter o código (references/00-get-the-code.md), bifurca por edição: Free clona o repo público (sem credencial); Pro clona via git proxy do…
  2. Layout + porta de qualidade (references/01-layout-and-bun-check.md): mapa do repo, bun install/bun dev, o ciclo bun check.
  3. Aditividade + invariantes (references/02-free-full-and-invariants.md): aditividade e onde estão as convenções e os docs por subsistema.
  4. Implementação conduzida (references/03-implement.md): perguntar o que implementar, desenhar desafiando premissas, implementar no estilo…
  5. Imagem própria + deploy (references/04-own-image-and-deploy.md): gerar a própria imagem e plugá-la num deploy (casa com o Tier C da…

What it can do on your machine

Read from SKILL.md and the folder at commit 5c3b649. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • bun

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Agents Dev loads about 653 tokens when it runs, and up to ~2.1k if it reads all its reference files. Until then it costs about 130 tokens; SKILL.md has 255 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~130
When it runs · the whole SKILL.md, loaded when a task matches
~653
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from fazer-ai/agents at commit 5c3b649, republished under its Apache-2.0 licence (© fazer-ai). 255 words, ~653 tokens.

Download SKILL.mdSave it as .claude/skills/agents-dev/SKILL.md (or your agent's skills folder). This skill also uses 7 other files; get the full folder from GitHub.
name
agents-dev
description
Modo desenvolvedor do fazer.ai agents: trabalhar no código-fonte. Clona o repo (Free público ou Pro via git proxy do hub), orienta nas boas práticas e invariantes (separação Free/Full, aditividade e convenções de docs/), pergunta proativamente o que o usuário quer implementar e conduz a implementação, e ajuda a gerar a própria imagem de deploy. Use quando o usuário quer DESENVOLVER, estender ou contribuir com o código do fazer.ai agents, não apenas subir (onboarding) ou operar (operação) uma instância.

Modo desenvolvedor do fazer.ai agents

Leva um desenvolvedor de "quero mexer no código" até "implementou com as boas práticas do projeto e, se quiser, gerou a própria imagem". Audiência: desenvolvedor, não operador. Para subir uma instância do zero use a skill agents-onboarding; para debugar/ajustar uma instância em produção use agents-operation.

⚠️ Distribuição: o Pro é privado

  • O repositório Pro/Full (fazer-ai/agents-pro) e a imagem Pro são privados. Nunca publique o código, a imagem, ou trechos exclusivos do Full em local público (gist, fork público, registry público, post, screenshot).
  • O acesso ao Pro é concedido individualmente. Vazar repo/imagem quebra esse modelo.
  • Sugestões e contribuições vão para o repositório Free (open-source): fazer-ai/agents. Abra issues/PRs lá.

Fluxo

  1. Obter o código (references/00-get-the-code.md), bifurca por edição: Free clona o repo público (sem credencial); Pro clona via git proxy do hub (credencial per-user).
  2. Layout + porta de qualidade (references/01-layout-and-bun-check.md): mapa do repo, bun install/bun dev, o ciclo bun check.
  3. Aditividade + invariantes (references/02-free-full-and-invariants.md): aditividade e onde estão as convenções e os docs por subsistema.
  4. Implementação conduzida (references/03-implement.md): perguntar o que implementar, desenhar desafiando premissas, implementar no estilo vizinho, validar.
  5. Imagem própria + deploy (references/04-own-image-and-deploy.md): gerar a própria imagem e plugá-la num deploy (casa com o Tier C da agents-onboarding).

Guardrails

Ver guardrails.md (Pro privado, segredos fora do repo, bun check verde) e gotchas.md (armadilhas de DB/RLS/CSP).

Skills irmãs

  • agents-onboarding: subir uma instância nova num VPS (do zero ao agente).
  • agents-operation: debugar/ajustar uma instância em produção.

Pendências

  • Wording de não-redistribuição (Pro): é conteúdo público-facing; confirmar a redação com a revisão de licenciamento.

© fazer-ai, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 7 other files (references) in .claude/skills/agents-dev of fazer-ai/agents.

  • SKILL.md
  • gotchas.md
  • guardrails.md
  • references/00-get-the-code.md
  • references/01-layout-and-bun-check.md
  • references/02-free-full-and-invariants.md
  • references/03-implement.md
  • references/04-own-image-and-deploy.md

Open the folder on GitHubat commit 5c3b649

Compare with similar skills

Agents Dev next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Agents Dev compared with similar skills
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Agents Dev this skillfazer-ai/agents118—~653Automated safety check: PassApache-2.0
Finishing a Development Branchobra/superpowers296k5 repos~1.9kAutomated safety check: PassMIT
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT
Codebase Knowledge Graph Q&AEgonex-AI/Understand-Anything85k1 repos~1.2kAutomated safety check: PassMIT
Code Design Rationale Investigatorcursor/plugins10k9 repos~2.6kAutomated safety check: PassNone
Understand Diff AnalysisEgonex-AI/Understand-Anything85k1 repos~1.4kAutomated safety check: PassMIT

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Works with

Categories

Questions about Agents Dev

What does Agents Dev do?

Modo desenvolvedor do fazer.ai agents: trabalhar no código-fonte. Agents Dev is an agent skill from fazer-ai/agents.ai agents: trabalhar no código-fonte.

When should I use Agents Dev?

Agents Dev fits situations like: development work in your project.

How do I install Agents Dev in Claude Code?

Run `npx skills add fazer-ai/agents --skill agents-dev -a claude-code`. Or copy the skill folder (.claude/skills/agents-dev in fazer-ai/agents) into .claude/skills/agents-dev in your project. Claude Code loads it when a task matches its description.

How do I install Agents Dev in Codex?

Run `npx skills add fazer-ai/agents --skill agents-dev -a codex`. Or copy the skill folder (.claude/skills/agents-dev in fazer-ai/agents) into .agents/skills/agents-dev in your project. Codex loads it when a task matches its description.

Can I use Agents Dev in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add fazer-ai/agents --skill agents-dev -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agents-dev, .gemini/skills/agents-dev, .github/skills/agents-dev and .opencode/skills/agents-dev in your project.

What does Agents Dev need to run?

Going by SKILL.md and its folder, Agents Dev needs the command-line tools its instructions call (bun).

Does Agents Dev access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Agents Dev safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Agents Dev use?

Agents Dev is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Agents Dev use?

About 653 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.5k tokens, read only when the agent opens those files.

What are the alternatives to Agents Dev?

Skills that share tags, products or a category with Agents Dev: Finishing a Development Branch (obra/superpowers, 296k stars), Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars), Codebase Knowledge Graph Q&A (Egonex-AI/Understand-Anything, 85k stars) and Code Design Rationale Investigator (cursor/plugins, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Agents Dev?

fazer-ai (a GitHub organization) maintains it in fazer-ai/agents, which has 118 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 7, 2026.

Source: fazer-ai/agents on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.