Agent skill

Anti Bot Analyzer

A skill for analyzing website anti-bot defense mechanisms and developing legitimate evasion strategies.

Apache-2.0Auto-check passedData & Analytics

Install Anti Bot Analyzer

skills CLI

$ npx skills add revfactory/harness-100 --skill anti-bot-analyzer -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 anti-bot-analyzer --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .claude/skills && cp -r skills-src/en/37-web-scraper/.claude/skills/anti-bot-analyzer .claude/skills/anti-bot-analyzer && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "anti-bot-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/anti-bot-analyzer into .claude/skills/anti-bot-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anti-bot-analyzer", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/anti-bot-analyzer

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add revfactory/harness-100 --skill anti-bot-analyzer -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 anti-bot-analyzer --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .agents/skills && cp -r skills-src/en/37-web-scraper/.claude/skills/anti-bot-analyzer .agents/skills/anti-bot-analyzer && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "anti-bot-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/anti-bot-analyzer into .agents/skills/anti-bot-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anti-bot-analyzer", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add revfactory/harness-100 --skill anti-bot-analyzer -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 anti-bot-analyzer --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/en/37-web-scraper/.claude/skills/anti-bot-analyzer .cursor/skills/anti-bot-analyzer && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "anti-bot-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/anti-bot-analyzer into .cursor/skills/anti-bot-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anti-bot-analyzer", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/revfactory/harness-100.git --path en/37-web-scraper/.claude/skills/anti-bot-analyzer

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add revfactory/harness-100 --skill anti-bot-analyzer -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 anti-bot-analyzer --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/en/37-web-scraper/.claude/skills/anti-bot-analyzer .gemini/skills/anti-bot-analyzer && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "anti-bot-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/anti-bot-analyzer into .gemini/skills/anti-bot-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anti-bot-analyzer", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install revfactory/harness-100 anti-bot-analyzer

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add revfactory/harness-100 --skill anti-bot-analyzer -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .github/skills && cp -r skills-src/en/37-web-scraper/.claude/skills/anti-bot-analyzer .github/skills/anti-bot-analyzer && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "anti-bot-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/anti-bot-analyzer into .github/skills/anti-bot-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anti-bot-analyzer", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add revfactory/harness-100 --skill anti-bot-analyzer -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 anti-bot-analyzer --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/en/37-web-scraper/.claude/skills/anti-bot-analyzer .opencode/skills/anti-bot-analyzer && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "anti-bot-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/anti-bot-analyzer into .opencode/skills/anti-bot-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anti-bot-analyzer", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: anti-bot-analyzer
GitHub stars: 1.3k
Token cost: ~1.1k tokens
SKILL.md length: 235 words
Files: 1
Skills in repo: 464
Repo updated: Mar 22, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

A skill for analyzing website anti-bot defense mechanisms and developing legitimate evasion strategies.

Requests like analyze anti-bot defenses
SKILL.md covers Target Agents, Anti-Bot Defense Layer…, Automated Defense Level… and Rate Limit Design Formula, plus 4 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
Bot blocking bypass

What it does

Anti Bot Analyzer is an agent skill from revfactory/harness-100. A skill for analyzing website anti-bot defense mechanisms and developing legitimate evasion strategies. Use for requests like 'analyze anti-bot defenses', 'bot blocking bypass', 'Cloudflare response', 'CAPTCHA detection', 'rate limit check', etc. Note: developing illegal bypass tools, CAPTCHA auto-solving services, and privacy-violating scraping are outside the scope of this skill.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Data & Analytics, covering Web scraping and Rate limiting. It works with Cloudflare. The licence is Apache-2.0.

When your agent uses it

Requests like analyze anti-bot defenses
Bot blocking bypass
Cloudflare response
CAPTCHA detection

Example prompts

“analyze anti-bot defenses”
“bot blocking bypass”
“Cloudflare response”
“/anti-bot-analyzer”

Requirements

Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit 8e8d35c. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are python and markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Anti Bot Analyzer loads about 1.1k tokens when it runs. Until then it costs about 101 tokens; SKILL.md has 235 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~101
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from revfactory/harness-100 at commit 8e8d35c, republished under its Apache-2.0 licence (© revfactory). 235 words, ~1,095 tokens.

Download SKILL.mdSave it as .claude/skills/anti-bot-analyzer/SKILL.md (or your agent's skills folder).

name: anti-bot-analyzer
description: A skill for analyzing website anti-bot defense mechanisms and developing legitimate evasion strategies. Use for requests like 'analyze anti-bot defenses', 'bot blocking bypass', 'Cloudflare response', 'CAPTCHA detection', 'rate limit check', etc. Note: developing illegal bypass tools, CAPTCHA auto-solving services, and privacy-violating scraping are outside the scope of this skill.

Anti-Bot Analyzer — Anti-Bot Defense Analysis + Legitimate Response

A skill that enhances target-analyst's and crawler-developer's anti-bot analysis capabilities.

Target Agents

target-analyst — Pre-assesses the defense level of target sites
crawler-developer — Develops legitimate crawler strategies based on analysis results

Anti-Bot Defense Layer Classification

Level 1: Basic Defense (Difficulty: Low)

Defense	Detection Method	Response Strategy
robots.txt	`GET /robots.txt`	Comply with rules (Crawl-delay, Disallow)
User-Agent filter	403/429 response	Set real browser UA header
Referer check	Blocked on empty Referer	Set appropriate Referer header
IP Rate Limit	429 on rapid requests	`time.sleep()` + random delay

Level 2: Intermediate Defense (Difficulty: Medium)

Defense	Detection Method	Response Strategy
Cookie-based sessions	Set-Cookie tracking	Maintain `requests.Session()`
JavaScript rendering required	Empty HTML body	Use Playwright/Puppeteer
Dynamic tokens (CSRF)	Hidden input	Extract token and include in request
API authentication	401 response	Analyze public API keys

Level 3: Advanced Defense (Difficulty: High)

Defense	Detection Method	Response Strategy
Cloudflare	`cf-` cookies, challenge page	Explore legitimate API alternatives
Akamai Bot Manager	`_abck` cookie	Explore official API/RSS alternatives
Browser fingerprinting	navigator/WebGL checks	Stealth plugins
reCAPTCHA/hCaptcha	`g-recaptcha` DOM	Use API alternatives
TLS fingerprinting (JA3)	Non-standard TLS blocked	curl_cffi

Automated Defense Level Detection Flow

1. HTTP request (no UA)
   ├── 200 OK -> Level 0 (no defense)
   └── 403/503 -> UA filter suspected

2. HTTP request (Chrome UA)
   ├── 200 + data -> Level 1
   ├── 200 + empty body -> JS rendering required (Level 2)
   └── 403/503 -> Level 2+

3. Response header analysis
   ├── server: cloudflare -> Cloudflare
   ├── x-akamai-* -> Akamai
   └── set-cookie: __cf_bm -> CF Bot Management

4. HTML analysis
   ├── <script src="captcha"> -> CAPTCHA
   └── API endpoint discovery (XHR/fetch)

5. Final: Level 0-3 + defense list output

Rate Limit Design Formula

python

base_delay = max(robots_crawl_delay, response_time * 5, 1.0)
actual_delay = base_delay + random.uniform(0, base_delay * 0.5)

# Exponential backoff on 429
backoff_delay = base_delay * (2 ** retry_count)
max_backoff = 300  # Maximum 5 minutes

# Business hours consideration
if is_business_hours(target_tz):
    actual_delay *= 2

robots.txt Analysis Checklist

1. Crawl-delay -> Apply to base_delay
2. Sitemap URL -> Collect crawling targets
3. Disallow patterns -> Apply URL filters
4. Allow exceptions -> Specify permitted paths
5. UA-specific rules -> Custom UA strategy

Legitimate Alternative Search Order

1. Official API -> Top priority
2. RSS/Atom feeds -> /feed, /rss
3. Sitemap XML -> URL list
4. Open Data / Public APIs -> government data portals
5. Partnership/Partner APIs
6. Web Archives -> web.archive.org

Legal Risk Checklist

Item	Risk Level
robots.txt compliance	Mandatory
ToS anti-scraping clauses	High
No personal data collection	Mandatory
Copyright verification	High
No excessive server load	Mandatory
No login credential usage	Medium
Data purpose (analysis vs. resale)	High

Report Template

markdown

## Anti-Bot Analysis Report
### Target: [URL]
### Defense Level: Level [0-3]
### Detected Defense Mechanisms
| Defense Type | Details | Counterable |
### robots.txt Analysis
### Recommended Strategy
### Legitimate Alternatives
### Legal Risk Assessment: [Low/Medium/High]

Files

Just SKILL.md in en/37-web-scraper/.claude/skills/anti-bot-analyzer of revfactory/harness-100.

Open the folder on GitHubat commit 8e8d35c

Compare with similar skills

Anti Bot Analyzer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Anti Bot Analyzer compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Anti Bot Analyzer this skillrevfactory/harness-100	1.3k	—	~1.1k	Automated safety check: Pass	Apache-2.0	6 mo ago
Firecrawl Rate Limitsjeremylongshore/tons-of-skills-marketplace	2.8k	—	~1.1k	Automated safety check: Pass	MIT	today
ScraplingCedriccmh/claude-code-skill-scrapling	444	—	~1.1k	Automated safety check: Pass	MIT	3 mo ago
News9600dev/mmr	131	—	~6.1k	Automated safety check: Pass	Custom licence	24 days ago
ScraplingTommy-yw/RunbookHermes	546	3 repos	~2.3k	Automated safety check: Pass	MIT	4 mo ago
Scraplingarchibate/dotfiles-opencode	108	1 repos	~4.9k	Automated safety check: Warn	BSD-3-Clause	5 mo ago

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Questions about Anti Bot Analyzer

What does Anti Bot Analyzer do?

A skill for analyzing website anti-bot defense mechanisms and developing legitimate evasion strategies. Anti Bot Analyzer is an agent skill from revfactory/harness-100. A skill for analyzing website anti-bot defense mechanisms and developing legitimate evasion strategies.

When should I use Anti Bot Analyzer?

Anti Bot Analyzer fits situations like: requests like analyze anti-bot defenses; bot blocking bypass; cloudflare response; CAPTCHA detection.

How do I install Anti Bot Analyzer in Claude Code?

Run `npx skills add revfactory/harness-100 --skill anti-bot-analyzer -a claude-code`. Or copy the skill folder (en/37-web-scraper/.claude/skills/anti-bot-analyzer in revfactory/harness-100) into .claude/skills/anti-bot-analyzer in your project. Claude Code loads it when a task matches its description.

How do I install Anti Bot Analyzer in Codex?

Run `npx skills add revfactory/harness-100 --skill anti-bot-analyzer -a codex`. Or copy the skill folder (en/37-web-scraper/.claude/skills/anti-bot-analyzer in revfactory/harness-100) into .agents/skills/anti-bot-analyzer in your project. Codex loads it when a task matches its description.

Can I use Anti Bot Analyzer in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add revfactory/harness-100 --skill anti-bot-analyzer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/anti-bot-analyzer, .gemini/skills/anti-bot-analyzer, .github/skills/anti-bot-analyzer and .opencode/skills/anti-bot-analyzer in your project.

What does Anti Bot Analyzer need to run?

SKILL.md names no scripts, command-line tools or credentials: Anti Bot Analyzer is instructions for the agent only. Our summary lists: Python 3.

Does Anti Bot Analyzer access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Anti Bot Analyzer safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Anti Bot Analyzer use?

Anti Bot Analyzer is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Anti Bot Analyzer use?

About 1.1k tokens (SKILL.md is roughly 4.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Anti Bot Analyzer?

Skills that share tags, products or a category with Anti Bot Analyzer: Firecrawl Rate Limits (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), Scrapling (Cedriccmh/claude-code-skill-scrapling, 444 stars), News (9600dev/mmr, 131 stars) and Scrapling (Tommy-yw/RunbookHermes, 546 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Anti Bot Analyzer?

revfactory (a GitHub user) maintains it in revfactory/harness-100, which has 1,295 GitHub stars. The repository holds 464 skills in this directory. The repository was last updated on March 22, 2026.

Source: revfactory/harness-100 on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Anti Bot Analyzer

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Anti-Bot Analyzer — Anti-Bot Defense Analysis + Legitimate Response

Target Agents

Anti-Bot Defense Layer Classification

Level 1: Basic Defense (Difficulty: Low)

Level 2: Intermediate Defense (Difficulty: Medium)

Level 3: Advanced Defense (Difficulty: High)

Automated Defense Level Detection Flow

Rate Limit Design Formula

robots.txt Analysis Checklist

Legitimate Alternative Search Order

Legal Risk Checklist

Report Template

Files

Compare with similar skills

Similar skills

More from revfactory/harness-100

Related

Questions about Anti Bot Analyzer