cloudflare-r2 SKILL.md skillA
cloudflare-r2 from secondsky/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add secondsky/claude-skills/cloudflare-r2@v3.0.0Pins v3.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- secondsky/claude-skills
- Path
plugins/cloudflare-r2/skills/cloudflare-r2/SKILL.md- Versions recorded
- 5
- Latest version
- v3.0.0, committed Aug 3, 2026
- First version recorded
- Dec 24, 2025
- Size
- 14,156 bytes
- Repository stars
- 247
- License
- MIT
Cloudflare R2 S3-compatible object storage. Use for buckets, uploads, CORS, presigned URLs, or encountering R2_ERROR, CORS failures, multipart issues.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Cloudflare R2 Object Storage
**Status**: Production Ready ✅ | **Last Verified**: 2025-12-27 | **v3.0.0**
**Contents**: [Quick Start](#quick-start-5-minutes) • [New Features](#new-r2-features-2025) • [Core R2 API](#core-r2-workers-api-quick-reference) • [Critical Rules](#critical-rules) • [Agents & Commands](#available-agents--commands) • [References](#when-to-load-references)
---
## Quick Start (5 Minutes)
### 1. Create R2 Bucket
```bash
bunx wrangler r2 bucket create my-bucket
```
**Bucket naming:** 3-63 chars, lowercase, numbers, hyphens only
### 2. Configure Binding
Add to `wrangler.jsonc`:
```jsonc
{
"name": "my-worker",
"main": "src/index.ts",
"compatibility_date": "2025-10-11",
"r2_buckets": [
{
"binding": "MY_BUCKET", // env.MY_BUCKET
"bucket_name": "my-bucket", // Actual bucket
"preview_bucket_name": "my-bucket-preview" // Optional: dev bucket
}
]
}
```
**CRITICAL:** `binding` = code access name, `bucket_name` = actual R2 bucket
### 3. Basic Upload/Download
```typescript
import { Hono } from 'hono';
type Bindings = {
MY_BUCKET: R2Bucket;
};
const app = new Hono<{ Bindings: Bindings }>();
// Upload
…Read the whole file at its exact version.
How to install
mdr add secondsky/claude-skills/cloudflare-r2@sha256:6b3a989d73deddd2The line at the top of this page pins the label v3.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_4ws3pvhtex6gvouj)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Dec 24, 2025 and Aug 3, 2026, about one every 56 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v3.0.0 latest | 2026-08-03 | 76d3746 | 14,156 B | A | view · diff |
| v3.0.0 | 2026-04-29 | 5f7b93b | 14,156 B | A | view · diff |
| v3.0.0 | 2026-04-26 | 852a9f7 | 14,034 B | A | view · diff |
| v3.0.0 | 2025-12-28 | 06a5a8a | 14,021 B | A | view · diff |
| v2.0.0 | 2025-12-24 | ba827ce | 11,476 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (14156 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
secondsky/claude-skills · 247 stars · license MIT · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4ws3pvhtex6gvouj GET https://markdownregistry.com/api/v1/resolve?ref=secondsky/claude-skills/cloudflare-r2 GET https://markdownregistry.com/api/v1/blob/6b3a989d73deddd2139c90ba496a18b75f6b7ca70595dc9de47996e042c70e2e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.