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Cloudflare Workers Bot Scan Defense

Category: Engineering  ·  Sub-category: cloud-platforms  ·  Last updated:
cloud:cloudflare
Make a Cloudflare Workers app resilient to bot scans that arrive within minutes of HTTPS publication via CT Log enumeration. Use when deploying a new Worker (especially with auth or paid bindings), when budget/cost is a concern, or when you want to detect "/.env" / "/admin" / "/wp-login.php" / "/.git/config" probing. Covers the mental model (CT Log → bot scan → which paths actually cost you money), the edge-cache absorption that makes most scans free, the narrow set of unauthenticated routes that do need rate limiting (auth `begin`/`verify`), the exact `wrangler.jsonc` `observability` + `ratelimits` config (plus the wrangler 3.x `unsafe.bindings` fallback for projects still on v3), the IP-keyed Hono middleware pattern (with the fail-open variant), the verification flow via `wrangler versions view` + Workers Observability — including the trap that v3's `versions view` renders neither the `unsafe` ratelimit binding nor `observability`, and a credential-free verification path for sandboxed agents / keyless CI — and the documented eventual-consistency caveat that makes synthetic burst tests look like the limiter is broken.
Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Cloudflare Workers Bot Scan Defense includes pricing or quota commentary; 10 code blocks for direct copy-paste. At roughly 2,778 words the SKILL.md is on the longer end of the catalog distribution.

License
MIT
Original author
okayus
Indexed lastmod
Catalog position
Engineering · cloud-platforms
Indexed related skills
10

How Cloudflare Workers Bot Scan Defense fits the catalog

Cloudflare Workers Bot Scan Defense sits in the Engineering category under the cloud-platforms sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

The day you point HTTPS at a domain — even a *.workers.dev subdomain you haven't told anyone about — your hostname appears in [Certificate Transparency Logs](https://certificate.transparency.dev/), and within minutes scanner bots start probing /.env, /.git/config, /admin, /wp-login.php, /index.php.bak, /.DS_Store, and dozens more. Family-only apps get scanned. Staging gets scanned. Internal tools get scanned. Even sites with no UI link anywhere get scanned.

What this skill does

Cloudflare Workers Bot Scan Defense is a community-contributed Claude Code skill in the cloud-platforms sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/cloudflare-workers-bot-scan-defense/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when deploying a new Worker (especially with auth or paid bindings), when budget/cost is a concern, or when you want to detect "/.env" / "/admin" / "/wp-login.

Who uses this skill

The Cloudflare Workers Bot Scan Defense Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 149,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/cloudflare-workers-bot-scan-defense
curl -L https://claudskills.com/skills/cloudflare-workers-bot-scan-defense/SKILL.md \
  -o ~/.claude/skills/cloudflare-workers-bot-scan-defense/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/cloudflare-workers-bot-scan-defense/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/cloudflare-workers-bot-scan-defense/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\cloudflare-workers-bot-scan-defense\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

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See pricing → Download desktop app

Frequently asked questions

How do I install the Cloudflare Workers Bot Scan Defense Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/cloudflare-workers-bot-scan-defense/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Cloudflare Workers Bot Scan Defense skill do?
Make a Cloudflare Workers app resilient to bot scans that arrive within minutes of HTTPS publication via CT Log enumeration. Use when deploying a new Worker (especially with auth or paid bindings), when budget/cost is a concern, or when you want to detect "/.env" / "/admin" / "/wp-login.php" / "/.git/config" probing. Covers the mental model (CT Log → bot scan → which paths actually cost you money), the edge-cache absorption that makes most scans free, the narrow set of unauthenticated routes that do need rate limiting (auth `begin`/`verify`), the exact `wrangler.jsonc` `observability` + `ratelimits` config (plus the wrangler 3.x `unsafe.bindings` fallback for projects still on v3), the IP-keyed Hono middleware pattern (with the fail-open variant), the verification flow via `wrangler versions view` + Workers Observability — including the trap that v3's `versions view` renders neither the `unsafe` ratelimit binding nor `observability`, and a credential-free verification path for sandboxed agents / keyless CI — and the documented eventual-consistency caveat that makes synthetic burst tests look like the limiter is broken.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Cloudflare Workers Bot Scan Defense skill?
Use Cloudflare Workers Bot Scan Defense when your Claude Code task falls under the Engineering category — specifically in the cloud platforms area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Cloudflare Workers Bot Scan Defense" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Cloudflare Workers Bot Scan Defense skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Cloudflare Workers Bot Scan Defense is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
okayus. (2026). Cloudflare Workers Bot Scan Defense [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/cloudflare-workers-bot-scan-defense/
BibTeX
@misc{cloudflare-workers-bot-scan-defense-2026,
  author    = {okayus},
  title     = {Cloudflare Workers Bot Scan Defense [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/cloudflare-workers-bot-scan-defense/}
}

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Security scan

Grade A · scanned 2026-07-11 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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