Summary
This handles the full lifecycle of file uploads: validation, sanitization, virus scanning, storage, and serving. You get reference implementations for Flask, FastAPI, and Express with Multer, plus S3 integration patterns. The examples cover the security essentials like MIME type validation, secure filename generation, and directory traversal prevention. Most useful when you're building upload features from scratch and want to avoid the common security pitfalls. The emphasis on signed URLs and CDN integration shows it's thinking beyond just accepting files. Solid starting point if you need more than a basic multipart form handler.
Install to Claude Code
npx -y skills add aj-geddes/useful-ai-prompts --skill file-upload-handling --agent claude-codeInstalls into .claude/skills of the current project.
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SKILL.md
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
