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r2-upload

Upload files to Cloudflare R2, AWS S3, or any S3-compatible storage (like MinIO) and generate secure, time-limited presigned download links with configurable expiration, typically set to 5 minutes. Use when the user needs to upload a file to cloud storage and get a shareable link, or mentions R2, S3, presigned URLs, temporary links, or file uploads with expiration.

The English summary is being prepared. Showing the original description.

Works withCloudflareAWS
See how to install

Files included (11)

  • SKILL.md3.5 KB
  • _meta.json128 B
  • CLAWDHUB.md3.2 KB
  • example-config.yml1.1 KB
  • package.json1.1 KB
  • pnpm-lock.yaml77.3 KB
  • README.md2.9 KB
  • SECURITY.md4.8 KB
  • src/index.ts11.8 KB
  • src/onboard.ts7.1 KB
  • tsconfig.json427 B

SKILL.md (original)

Review the instructions the agent will receive before you install.

Send Me My Files - R2 Upload with Short Lived Signed URLs

Upload files to Cloudflare R2 or any S3-compatible storage and generate presigned download links.

Features

  • Upload files to R2/S3 buckets
  • Generate presigned download URLs (configurable expiration)
  • Support for any S3-compatible storage (R2, AWS S3, MinIO, etc.)
  • Multiple bucket configurations
  • Automatic content-type detection

Configuration

Create ~/.r2-upload.yml (or set R2_UPLOAD_CONFIG env var):

# Default bucket (used when no bucket specified)
default: my-bucket

# Bucket configurations
buckets:
  my-bucket:
    endpoint: https://abc123.r2.cloudflarestorage.com
    access_key_id: your_access_key
    secret_access_key: your_secret_key
    bucket_name: my-bucket
    public_url: https://files.example.com  # Optional: custom domain
    region: auto  # For R2, use "auto"

  # Additional buckets
  personal:
    endpoint: https://xyz789.r2.cloudflarestorage.com
    access_key_id: ...
    secret_access_key: ...
    bucket_name: personal-files
    region: auto

Cloudflare R2 Setup

  1. Go to Cloudflare Dashboard → R2
  2. Create a bucket
  3. Go to R2 API Tokens: https://dash.cloudflare.com/<ACCOUNT_ID>/r2/api-tokens
  4. Create a new API token
    • Important: Apply to specific bucket (select your bucket)
    • Permissions: Object Read & Write
  5. Copy the Access Key ID and Secret Access Key
  6. Use endpoint format: https://<account_id>.r2.cloudflarestorage.com
  7. Set region: auto

AWS S3 Setup

aws-bucket:
  endpoint: https://s3.us-east-1.amazonaws.com
  access_key_id: ...
  secret_access_key: ...
  bucket_name: my-aws-bucket
  region: us-east-1

Usage

Upload a file

r2-upload /path/to/file.pdf
# Returns: https://files.example.com/abc123/file.pdf?signature=...

Upload with custom path

r2-upload /path/to/file.pdf --key uploads/2026/file.pdf

Upload to specific bucket

r2-upload /path/to/file.pdf --bucket personal

Custom expiration (default: 5 minutes)

r2-upload /path/to/file.pdf --expires 24h
r2-upload /path/to/file.pdf --expires 1d
r2-upload /path/to/file.pdf --expires 300  # seconds

Public URL (no signature)

r2-upload /path/to/file.pdf --public

Tools

  • r2_upload - Upload file and get presigned URL
  • r2_list - List recent uploads
  • r2_delete - Delete a file

Environment Variables

  • R2_UPLOAD_CONFIG - Path to config file (default: ~/.r2-upload.yml)
  • R2_DEFAULT_BUCKET - Override default bucket
  • R2_DEFAULT_EXPIRES - Default expiration in seconds (default: 300 = 5 minutes)

Notes

  • Uploaded files are stored with their original filename unless --key is specified
  • Automatic UUID prefix added to prevent collisions (e.g., abc123/file.pdf)
  • Content-Type automatically detected from file extension
  • Presigned URLs expire after the configured duration

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