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wshobson/file-conversion

Converta arquivos entre formatos — PDF para Word, HEIC para JPG, MP4 para MP3, CSV para JSON, EPUB para MOBI e 999 rotas no total entre imagens, vídeo, áudio, documentos, dados, fontes, ebooks e arquivos. Gratuito via changethisfile.com, sem necessidade de chave de API ou cadastro. Use quando o usuário precisar converter um arquivo para um formato diferente.

O que é file-conversion?

Esta skill oferece uma maneira simples e gratuita de converter arquivos entre centenas de formatos usando o serviço ChangeThisFile. São 999 rotas de conversão que cobrem desde documentos de escritório (PDF, DOCX), imagens (HEIC, JPG), vídeos (MP4, AVI), áudio (MP3, WAV), dados (CSV, JSON), fontes, ebooks e arquivos compactados, tudo sem necessidade de conta ou chave de API. A skill prioriza o uso de ferramentas MCP quando disponíveis (como em agentes que suportam MCP), mas também oferece um script shell local para ambientes sem conectividade MCP, além de comandos curl diretos para arquivos remotos. O processamento é feito no servidor usando tecnologias como FFmpeg, LibreOffice, Calibre e Ghostscript, e os arquivos enviados são deletados em até 24 horas. O limite de entrada é de 25 MB na rota gratuita, com taxa de 5 conversões por minuto por IP. Para arquivos maiores ou maior volume, há uma opção de chave de API gratuita que oferece 1.000 conversões por mês. A skill também permite consultar todas as rotas suportadas dinamicamente, evitando suposições sobre conversões exóticas.

Funciona com✓Claude Code~Codex CLI~Cursor
npx skills add https://github.com/wshobson/agents/tree/main/plugins/file-conversion/skills/file-conversion

Perguntar na sua IA favorita

Abre um novo chat com esta habilidade de agente já pré-carregada.

Documentação

Conversão de Arquivos (ChangeThisFile)

Converta arquivos entre 999 rotas de conversão usando o serviço gratuito ChangeThisFile. Não é necessária conta ou chave de API. As conversões são executadas no servidor (FFmpeg, LibreOffice, Calibre, 7-Zip, sharp, Ghostscript); os arquivos são excluídos em até 24 horas.

Ordem de decisão

  1. Se as ferramentas MCP do ChangeThisFile estiverem disponíveis (changethisfile:convert_file, changethisfile:list_conversions) — utilize-as diretamente. convert_file aceita source_url OU base64_content + source_format, além de target_format, e retorna uma URL de download temporária.
  2. Caso contrário, use o script incluso (requer acesso de rede a changethisfile.com):
scripts/convert.sh <arquivo-entrada> <formato-destino> [arquivo-saida]
# ex.: scripts/convert.sh relatorio.docx pdf
# exibe o caminho do arquivo de saída em caso de sucesso

O caminho do script é relativo ao diretório desta skill. Ele codifica o arquivo em base64, chama o endpoint MCP hospedado via HTTPS simples, baixa o resultado e o salva ao lado do arquivo de entrada (ou em [arquivo-saida]).

  1. Arquivo remoto (você tem uma URL, não um arquivo local) — pule o download/re-envio; um curl resolve:
curl -sS -X POST https://changethisfile.com/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"convert_file","arguments":{"source_url":"<URL_DO_ARQUIVO>","target_format":"pdf"}}}'

O texto da resposta contém uma URL de download — busque-a com curl -o <saida>.

Descobrindo rotas suportadas

Pergunte antes de adivinhar se uma conversão é exótica:

curl -sS -X POST https://changethisfile.com/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"list_conversions","arguments":{"source_format":"docx"}}}'

Omita source_format para um resumo agrupado de todas as 999 rotas.

Limites e erros

  • Tamanho máximo de entrada: 25 MB (rota gratuita). Arquivos maiores: obtenha uma chave de API gratuita (1.000 conversões/mês) em https://changethisfile.com/docs/authentication e use POST /v1/convert.
  • Limite de taxa: 5 conversões/minuto por IP. Em caso de "Limite de taxa excedido", aguarde 60 segundos e tente novamente uma vez.
  • Erros "Conversão não suportada: X→Y" listam os destinos válidos para o formato de origem.
  • URLs de download expiram após 1 hora — baixe imediatamente e trabalhe com o arquivo local.

Notas de ambiente

  • Requer HTTPS de saída para changethisfile.com. No claude.ai, o sandbox de execução de código restringe a saída por padrão — prefira o conector MCP lá, ou o usuário pode permitir o domínio em Configurações → Capacidades.
  • Documentação completa: https://changethisfile.com/docs/mcp

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

wshobson/accessibility-compliance

Implement WCAG 2.2 compliant interfaces with mobile accessibility, inclusive design patterns, and assistive technology support. Use when auditing accessibility, implementing ARIA patterns, building for screen readers, or ensuring inclusive user experiences.

wshobson/airflow-dag-patterns

Build production Apache Airflow DAGs with best practices for operators, sensors, testing, and deployment. Use when creating data pipelines, orchestrating workflows, or scheduling batch jobs.

wshobson/angular-migration

Migrate from AngularJS to Angular using hybrid mode, incremental component rewriting, and dependency injection updates. Use when upgrading AngularJS applications, planning framework migrations, or modernizing legacy Angular code.

wshobson/anti-reversing-techniques

Understand anti-reversing, obfuscation, and protection techniques encountered during software analysis. Use this skill when analyzing malware evasion techniques, when implementing anti-debugging protections for CTF challenges, when reverse engineering packed binaries, or when building security research tools that need to detect virtualized environments.

wshobson/api-design-principles

Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers. Use when designing new APIs, reviewing API specifications, or establishing API design standards.

wshobson/architecture-decision-records

Write and maintain Architecture Decision Records (ADRs) following best practices for technical decision documentation. Use when documenting significant technical decisions, reviewing past architectural choices, or establishing decision processes.

wshobson/architecture-patterns

Implement proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design. Use this skill when designing clean architecture for a new microservice, when refactoring a monolith to use bounded contexts, when implementing hexagonal or onion architecture patterns, or when debugging dependency cycles between application layers.

wshobson/async-python-patterns

Master Python asyncio, concurrent programming, and async/await patterns for high-performance applications. Use when building async APIs, concurrent systems, or I/O-bound applications requiring non-blocking operations.

wshobson/attack-tree-construction

Build comprehensive attack trees to visualize threat paths. Use when mapping attack scenarios, identifying defense gaps, or communicating security risks to stakeholders.

wshobson/auth-implementation-patterns

Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems. Use when implementing auth systems, securing APIs, or debugging security issues.

wshobson/avoid-ai-writing

Audit and rewrite prose so it stops reading as machine-generated. Use this skill when asked to remove AI-isms, clean up AI writing, edit a draft for AI tells, audit a README, changelog, release note, PR description, or blog post for machine-sounding prose, or make text sound less like AI. Supports a detect-only mode, a rewrite mode, and an edit-in-place mode, with optional voice and context profiles.

wshobson/backtesting-frameworks

Build robust backtesting systems for trading strategies with proper handling of look-ahead bias, survivorship bias, and transaction costs. Use when developing trading algorithms, validating strategies, or building backtesting infrastructure.

wshobson/bash-defensive-patterns

Master defensive Bash programming techniques for production-grade scripts. Use when writing robust shell scripts, CI/CD pipelines, or system utilities requiring fault tolerance and safety.

wshobson/bats-testing-patterns

Master Bash Automated Testing System (Bats) for comprehensive shell script testing. Use when writing tests for shell scripts, CI/CD pipelines, or requiring test-driven development of shell utilities.

wshobson/bazel-build-optimization

Optimize Bazel builds for large-scale monorepos. Use when configuring Bazel, implementing remote execution, or optimizing build performance for enterprise codebases.

wshobson/before-you-build

Pre-build product and feature risk review for founders, product managers, and AI-assisted builders. Use this skill when the user is about to build a landing page, MVP, SaaS product, internal tool, agent workflow, or major feature and needs to check demand, positioning, monetization, retention, trust, distribution, and adoption risk before implementation starts.

wshobson/billing-automation

Build automated billing systems for recurring payments, invoicing, subscription lifecycle, and dunning management. Use when implementing subscription billing, automating invoicing, or managing recurring payment systems.

wshobson/binary-analysis-patterns

Master binary analysis patterns including disassembly, decompilation, control flow analysis, and code pattern recognition. Use when analyzing executables, understanding compiled code, or performing static analysis on binaries.

wshobson/block-no-verify-hook

Configure a PreToolUse hook to prevent AI agents from skipping git pre-commit hooks with --no-verify and other bypass flags. Use when setting up Claude Code projects that enforce commit quality gates.

wshobson/brand-landingpage

Brand-first landing page designer — runs a brand-identity interview (colors, typography, shape language), then generates and iterates on a polished landing page via Stitch with deployment-ready HTML. Use when the user asks to create, design, or build a landing page, homepage, or marketing page and has no established visual direction. Skip when they have a design mockup, need a dashboard or app UI, are working at component level, building a multi-page app, or restyling with known design tokens — use frontend-design instead.

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