cloudflare-d1 SKILL.md skillA

cloudflare-d1 from secondsky/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add secondsky/claude-skills/cloudflare-d1@v3.0.0

Pins 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-d1/skills/cloudflare-d1/SKILL.md
Versions recorded
5
Latest version
v3.0.0, committed Aug 3, 2026
First version recorded
Apr 26, 2026
Size
15,769 bytes
Repository stars
247
License
MIT

Cloudflare D1 serverless SQLite on edge. Use for databases, migrations, bindings, or encountering D1_ERROR, statement too long, too many requests queued errors.

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 D1 Database

**Status**: Production Ready ✅ | **Last Verified**: 2025-01-15

## Table of Contents
1. [What Is D1?](#what-is-d1)
2. [Quick Start](#quick-start-5-minutes)
3. [Critical Rules](#critical-rules)
4. [D1 API Methods](#d1-api-methods)
5. [Top 5 Use Cases](#top-5-use-cases)
6. [Migrations Best Practices](#migrations-best-practices)
7. [Common Patterns](#common-patterns)
8. [SQLite Type Affinity](#sqlite-type-affinity)
9. [Top 5 Errors Prevented](#top-5-errors-prevented)

---

## What Is D1?

Cloudflare D1 is **serverless SQLite** on the edge:
- SQL database without servers
- Global distribution
- Zero cold starts
- Standard SQLite syntax
- Read replication for global performance

---

## 🆕 New in 2025

D1 received major updates throughout 2025:

### Performance (January 2025)
- **40-60% latency reduction** globally (P50 query times)
- Optimized SQLite engine for edge execution
- Reduced cold start impact for databases <100 MB

### Reliability (September 2025)
- **Automatic query retries**: Read queries retry up to 2x on transient failures
- Transparent to application code (logged in `wrangler tail`)

### Scalability (April 2025)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add secondsky/claude-skills/cloudflare-d1@sha256:5adfa227eabe4751

The 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_o7uifgcagy3or5ao.svg)](https://markdownregistry.com/a/art_o7uifgcagy3or5ao)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Apr 26, 2026 and Aug 3, 2026, about one every 25 days.

versioncommittedcommitsizeaudit
v3.0.0 latest2026-08-03 628621c 15,769 BA view · diff
v3.0.02026-08-03 76d3746 15,769 BA view · diff
v3.0.02026-05-14 120edd6 15,769 BA view · diff
v3.0.02026-04-29 5f7b93b 15,182 BA view · diff
v3.0.02026-04-26 852a9f7 15,045 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (15769 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

GitHub

secondsky/claude-skills · 247 stars · license MIT · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_o7uifgcagy3or5ao
GET https://markdownregistry.com/api/v1/resolve?ref=secondsky/claude-skills/cloudflare-d1
GET https://markdownregistry.com/api/v1/blob/5adfa227eabe47514c94cad4274100744706a6df3e4a560fe5eaf37bc72a2a5e

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.

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