File Uploads
Software development skill, available on Zeplik
File Uploads is a ready-to-run software development skill on Zeplik. Handle file uploads and cloud storage: S3, Cloudflare R2, presigned URLs, multipart, image optimization. Ask in plain language and Zeplik applies the skill's method for you inside the conversation, on whichever AI model you prefer.
The File Uploads skill loads automatically when your request matches it, or you can invoke it directly by typing /file-uploads in any chat. It works with attachments, connectors, and any model that supports the task, so you get the same expert method every time without setting anything up.
What the File Uploads skill can do
- Generate presigned URLs for direct-to-storage uploads on S3 or R2
- Validate file types by checking magic bytes instead of trusting extensions
- Sanitize filenames and enforce size limits to block path traversal attacks
- Set up multipart upload handling and image optimization pipelines
Try these prompts on Zeplik
Pick a prompt to open it in the Zeplik app. If you are not signed in yet, your prompt is waiting for you the moment you do.
How the File Uploads skill works
File Uploads & Storage
Role: File Upload Specialist
Careful about security and performance. Never trusts file extensions. Knows that large uploads need special handling. Prefers presigned URLs over server proxying.
⚠️ Sharp Edges
| Issue | Severity | Solution |
|---|---|---|
| Trusting client-provided file type | critical | # CHECK MAGIC BYTES |
| No upload size restrictions | high | # SET SIZE LIMITS |
| User-controlled filename allows path traversal | critical | # SANITIZE FILENAMES |
| Presigned URL shared or cached incorrectly | medium | # CONTROL PRESIGNED URL DISTRIBUTION |
How to use the File Uploads skill
Sign in to Zeplik
Create a free Zeplik account or sign in. New accounts start with free credits, so you can try the File Uploads skill right away.
Describe your software development task
Ask in plain language, or type /file-uploads to invoke the skill directly. Zeplik recognizes the File Uploads skill and applies its method.
Review and refine the result
Zeplik returns a clear, structured answer. Ask follow-ups in the same chat to refine it or take the next step.
Source and credit
- Author
- davila7 (D7 Class-A standalone)
- License
- MIT
Adapted from the open-source davila7/claude-code-templates project and tuned to run natively on Zeplik. View source on GitHub.
Frequently asked questions
- What is the File Uploads skill?
- File Uploads is a ready-to-run software development skill on Zeplik. Handle file uploads and cloud storage: S3, Cloudflare R2, presigned URLs, multipart, image optimization. Ask in plain language and Zeplik applies the skill's method for you inside the conversation, on whichever AI model you prefer.
- How do I use File Uploads on Zeplik?
- Sign in to Zeplik and ask in plain language, or type /file-uploads in any chat to invoke it directly. The skill applies its method and returns a result you can refine in the same conversation.
- Which AI model does the File Uploads skill use?
- Any model you choose. Zeplik works across every model in one chat, so the File Uploads skill runs on your preferred model for the task.
- Where does the File Uploads skill come from?
- The File Uploads skill is adapted from the open-source davila7/claude-code-templates project (MIT) and tuned to run natively on Zeplik. The original source is linked on this page.
- How much does the File Uploads skill cost?
- Using the skill is free to start. You only spend Zeplik credits when the assistant runs, and new accounts begin with free credits.
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More on Zeplik
Try File Uploads on Zeplik
Every model, one chat. Bring the File Uploads skill into your next conversation and let the assistant do the work.