Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Tencent SkillHub ยท Developer Tools
Cloudflare R2 CLI
Minimal Python CLI for secure upload, download, list, and delete operations on Cloudflare R2 storage using AWS Signature V4 authentication.
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Minimal Python CLI for secure upload, download, list, and delete operations on Cloudflare R2 storage using AWS Signature V4 authentication.
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Install for OpenClaw
Quick setup
- Download the package from Yavira.
- Extract the archive and review SKILL.md first.
- Import or place the package into your OpenClaw setup.
Package facts
- Download mode
- Yavira redirect
- Package format
- ZIP package
- Source platform
- Tencent SkillHub
- What's included
- SKILL.md, r2.py
Validation
- Use the Yavira download entry.
- Review SKILL.md after the package is downloaded.
- Confirm the extracted package contains the expected setup assets.
Install with your agent
Agent handoff
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
New install
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
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I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
Trust & source
Release facts
- Source
- Tencent SkillHub
- Verification
- Indexed source record
- Version
- 1.0.6
Provenance
- Publisher
- zororaka00
- Source page
- View original listing
- Canonical URL
- Open canonical page
Documentation
Skill Metadata
name: "r2-cli" description: "A minimal CLI tool for interacting with Cloudflare R2 storage using Python. Supports upload, download, list, and delete operations via S3-compatible API with AWS Signature V4." version: "1.0.6" author: username: "@zororaka00" name: "Web3 Hungry" x_account: "https://x.com/web3hungry" category: "storage" tags: ["cloudflare", "python", "r2", "storage"] source: "r2.py" credentials: required: true type: "environment" variables: - CF_R2_ACCOUNT_ID - CF_R2_ACCESS_KEY_ID - CF_R2_SECRET_ACCESS_KEY - CF_R2_BUCKET - CF_R2_REGION runtime: language: "python" version: "3.11+" dependencies: - "defusedxml>=0.7.1" env: - name: "CF_R2_ACCOUNT_ID" required: true description: "Cloudflare account ID" - name: "CF_R2_ACCESS_KEY_ID" required: true description: "R2 access key ID" - name: "CF_R2_SECRET_ACCESS_KEY" required: true description: "R2 secret access key" - name: "CF_R2_BUCKET" required: true description: "R2 bucket name" - name: "CF_R2_REGION" required: false description: "Region (default: auto)" required_env_vars: - CF_R2_ACCOUNT_ID - CF_R2_ACCESS_KEY_ID - CF_R2_SECRET_ACCESS_KEY - CF_R2_BUCKET - CF_R2_REGION primaryEnv: CF_R2_ACCESS_KEY_ID primarySecretEnv: CF_R2_SECRET_ACCESS_KEY
Overview
This skill provides a minimal CLI tool for interacting with Cloudflare R2 storage using Python. The script (r2.py) implements upload, download, list, and delete operations via the Cloudflare R2 S3-compatible API. It is designed for secure usage in restricted environments with minimal dependencies while following modern security best practices.
Dependencies
Python 3.11+ Requires: defusedxml (for secure XML parsing) The tool primarily uses the Python standard library. Only defusedxml is required to harden XML parsing against known attacks.
Installation
No package installation is required for the CLI itself. If defusedxml is not already available: pip install defusedxml
Features
Upload objects to a bucket Download objects from a bucket List objects in a bucket Delete objects from a bucket AWS Signature V4 compatible authentication (HMAC SHA256) Secure credential handling via environment variables Hardened HTTP client with HTTPS-only enforcement Safe XML parsing using defused XML protections
Prerequisites
Python 3.11+ Cloudflare account with R2 enabled Bucket created in Cloudflare R2 API keys with appropriate permissions (least privilege) Bucket name must be DNS-compliant (lowercase letters, numbers, hyphens, 3โ63 characters, no underscores)
Environment Variables
VariableDescriptionExampleCF_R2_ACCOUNT_IDCloudflare account ID123e4567-e89b-12d3-a456-426614174000CF_R2_ACCESS_KEY_IDR2 access key IDAKIAxxxxxxxxxxxxCF_R2_SECRET_ACCESS_KEYR2 secret keyxxxxxxxxxxxxxxxxxxxxxxxxCF_R2_BUCKETBucket namemy-r2-bucketCF_R2_REGIONRegion (default: auto)auto CF_R2_REGION behavior: auto (default): automatically selects the appropriate region for Cloudflare R2. Custom value: you may specify a region string if required by your environment (for example us-east-1 for compatibility scenarios).
Environment Setup
This tool reads credentials directly from operating system environment variables. Set the variables globally before running the CLI.
Linux / macOS (bash / zsh)
export CF_R2_ACCOUNT_ID="your_account_id" export CF_R2_ACCESS_KEY_ID="your_access_key" export CF_R2_SECRET_ACCESS_KEY="your_secret_key" export CF_R2_BUCKET="your_bucket_name" export CF_R2_REGION="auto" Security Note: These credentials should only be set temporarily in the current session. For production environments, use secure secret management solutions.
Windows (PowerShell)
$env:CF_R2_ACCOUNT_ID="your_account_id" $env:CF_R2_ACCESS_KEY_ID="your_access_key" $env:CF_R2_SECRET_ACCESS_KEY="your_secret_key" $env:CF_R2_BUCKET="your_bucket_name" $env:CF_R2_REGION="auto" Security Note: These credentials should only be set temporarily in the current session. For production environments, use secure secret management solutions.
Recommended Secure Credential Management
For production environments, consider using: Cloudflare Workers Secrets (for Cloudflare environments) AWS Secrets Manager (if using AWS) HashiCorp Vault (enterprise secret management) Docker Secrets (for containerized deployments) Kubernetes Secrets (for Kubernetes environments) OS-level keyring (e.g., keyring Python package)
Verify Environment
echo $CF_R2_ACCOUNT_ID If a value prints, the environment is configured correctly. Important: Never commit credentials to version control. Use environment variables provided by your operating system or a secure secret management solution.
Usage
# Upload a file python r2.py upload --file local_file.txt --key remote_file.txt # Download a file python r2.py download --key remote_file.txt --file local_file.txt # List objects python r2.py list # Delete an object python r2.py delete --key remote_file.txt
Security Best Practices
Never commit credentials to version control. Use environment variables managed by your operating system, container runtime, or secret manager. Apply least-privilege access when creating API keys. Rotate keys regularly and revoke compromised keys. All credentials are loaded at runtime from environment variables. HTTPS is strictly enforced and hostnames are validated to prevent unexpected network access. XML responses are parsed using the defusedxml library to prevent XXE and entity expansion attacks. Errors are handled without exposing sensitive information such as credentials or secrets.
Credential Security
Never store credentials inside source code or configuration files committed to version control. Use environment variables provided by your operating system or a secure secret management solution.
Future Improvements
Multipart uploads for large objects Retry with exponential backoff Progress indicators Bucket management commands Streaming upload/download to reduce memory usage
Category context
Code helpers, APIs, CLIs, browser automation, testing, and developer operations.
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Package contents
Included in package
1 Docs1 Scripts
- SKILL.md
- r2.py