Python Executor
cortega26/chile-hub
Execute Python code in a safe sandboxed environment via [inference.sh](https://inference.sh).
Full pipeline for building web scraping systems with agent team collaboration.
Install Web Scraper
$ npx skills add revfactory/harness-100 --skill web-scraper -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install revfactory/harness-100 web-scraper --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ 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/web-scraper .claude/skills/web-scraper && rm -rf skills-srcUse ~/.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/
Install the "web-scraper" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/web-scraper into .claude/skills/web-scraper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "web-scraper", 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 install https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/web-scraperType 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.
$ npx skills add revfactory/harness-100 --skill web-scraper -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install revfactory/harness-100 web-scraper --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ 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/web-scraper .agents/skills/web-scraper && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "web-scraper" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/web-scraper into .agents/skills/web-scraper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "web-scraper", 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.
$ npx skills add revfactory/harness-100 --skill web-scraper -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install revfactory/harness-100 web-scraper --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ 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/web-scraper .cursor/skills/web-scraper && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "web-scraper" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/web-scraper into .cursor/skills/web-scraper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "web-scraper", 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 https://github.com/revfactory/harness-100.git --path en/37-web-scraper/.claude/skills/web-scraper--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add revfactory/harness-100 --skill web-scraper -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install revfactory/harness-100 web-scraper --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ 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/web-scraper .gemini/skills/web-scraper && rm -rf skills-srcUse ~/.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/
Install the "web-scraper" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/web-scraper into .gemini/skills/web-scraper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "web-scraper", 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.
$ gh skill install revfactory/harness-100 web-scraperInstalls 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).
$ npx skills add revfactory/harness-100 --skill web-scraper -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ 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/web-scraper .github/skills/web-scraper && rm -rf skills-srcUse ~/.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/
Install the "web-scraper" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/web-scraper into .github/skills/web-scraper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "web-scraper", 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.
$ npx skills add revfactory/harness-100 --skill web-scraper -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install revfactory/harness-100 web-scraper --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ 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/web-scraper .opencode/skills/web-scraper && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "web-scraper" agent skill from https://github.com/revfactory/harness-100/tree/main/en/37-web-scraper/.claude/skills/web-scraper into .opencode/skills/web-scraper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "web-scraper", 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
web-scraper- GitHub stars
- 1.3k
- Token cost
- ~1.7k tokens
- SKILL.md length
- 677 words
- Files
- 1
- Skills in repo
- 464
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Full pipeline for building web scraping systems with agent team collaboration.
- Works in 3 steps: Preparation (performed directly by the… → Team Assembly and Execution → Integration and Final Deliverables
- Requests like build a web scraper
- SKILL.md covers Execution Mode, Agent Composition, Workflow and Execution Modes by Request Scope, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Web Scraper is an agent skill from revfactory/harness-100. Full pipeline for building web scraping systems with agent team collaboration. Use this skill for requests like 'build a web scraper', 'develop a crawler', 'collect site data', 'web crawling system', 'build a scraper', 'data collection automation', 'site parsing', 'web data extraction', etc. Also supports target-analysis-only mode for specific site analysis. Note: real-time streaming data processing (Kafka/Flink), browser automation testing (Selenium testing), and website performance monitoring are outside the…
Its SKILL.md is about 1.7k 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. It works with Selenium and Apache Kafka. The licence is Apache-2.0.
When your agent uses it
- Requests like build a web scraper
- Develop a crawler
- Collect site data
- Web crawling system
Example prompts
- “build a web scraper”
- “develop a crawler”
- “collect site data”
- “/web-scraper”
Workflow steps
3 steps, taken from the step headings in SKILL.md.
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.
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
Web Scraper loads about 1.7k tokens when it runs. Until then it costs about 137 tokens; SKILL.md has 677 words of instructions outside code blocks.
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). 677 words, ~1,729 tokens.
Download SKILL.mdSave it as
.claude/skills/web-scraper/SKILL.md (or your agent's skills folder).- name
- web-scraper
- description
- Full pipeline for building web scraping systems with agent team collaboration. Use this skill for requests like 'build a web scraper', 'develop a crawler', 'collect site data', 'web crawling system', 'build a scraper', 'data collection automation', 'site parsing', 'web data extraction', etc. Also supports target-analysis-only mode for specific site analysis. Note: real-time streaming data processing (Kafka/Flink), browser automation testing (Selenium testing), and website performance monitoring are outside the scope of this skill.
Web Scraper — Web Scraping System Construction Pipeline
An agent team collaborates to build target analysis, crawler design, parsing, storage, and monitoring for web scraping systems.
Execution Mode
Agent Team — Five agents communicate directly via SendMessage and perform cross-validation.
Agent Composition
| Agent | File | Role | Type |
|---|---|---|---|
| target-analyst | .claude/agents/target-analyst.md | Target site analysis, risk assessment | general-purpose |
| crawler-developer | .claude/agents/crawler-developer.md | Crawler architecture and implementation | general-purpose |
| parser-engineer | .claude/agents/parser-engineer.md | Parsing logic design and implementation | general-purpose |
| data-manager | .claude/agents/data-manager.md | Data storage, validation, export | general-purpose |
| monitor-operator | .claude/agents/monitor-operator.md | Monitoring, alerting, scheduling | general-purpose |
Workflow
Phase 1: Preparation (performed directly by the orchestrator)
- Extract the following from user input:
- Target site URL: Website to scrape
- Target data: What data to extract
- Purpose: Intended use of collected data (analysis/monitoring/archiving)
- Scale: Expected data volume, collection frequency
- Constraints (optional): Tech stack limitations, budget, legal requirements
- Create the
_workspace/directory at the project root - Organize the input and save it to
_workspace/00_input.md - Create the
_workspace/src/directory - If pre-existing files are available, copy them to
_workspace/and skip the corresponding phase - Determine the execution mode based on the scope of the request (see "Execution Modes" below)
Phase 2: Team Assembly and Execution
Assemble the team and assign tasks. Inter-task dependencies are as follows:
| Order | Task | Owner | Dependencies | Deliverable |
|---|---|---|---|---|
| 1 | Target site analysis | analyst | None | _workspace/01_target_analysis.md |
| 2a | Crawler design and implementation | crawler | Task 1 | _workspace/02_crawler_design.md + src/ |
| 2b | Parsing logic design and implementation | parser | Task 1 | _workspace/03_parser_logic.md + src/ |
| 3 | Data storage design | data-mgr | Task 2b | _workspace/04_data_storage.md + src/ |
| 4 | Monitoring configuration | monitor | Tasks 2a, 2b, 3 | _workspace/05_monitor_config.md + src/ |
Tasks 2a (crawler) and 2b (parser) run in parallel since both depend only on Task 1 (analysis).
Inter-agent communication flow:
- analyst completes > passes URL patterns, anti-bot info, rate limits to crawler; data points and DOM structure to parser
- crawler completes > passes raw data format to parser; crawler health checkpoints to monitor
- parser completes > passes data schema to data-mgr; parsing metrics to monitor
- data-mgr completes > passes data quality metrics to monitor
- monitor integrates all components to finalize operations configuration
Phase 3: Integration and Final Deliverables
- Verify all files in
_workspace/and_workspace/src/ - Validate cross-deliverable consistency (analysis > crawler > parser > storage > monitoring)
- Present the final summary and execution instructions to the user
Execution Modes by Request Scope
| User Request Pattern | Execution Mode | Agents Deployed |
|---|---|---|
| "Build a full scraping system" | Full pipeline | All 5 agents |
| "Analyze target site only" | Analysis mode | target-analyst only |
| "Build crawler only" | Crawler mode | target-analyst + crawler-developer |
| "Design parser only" | Parser mode | target-analyst + parser-engineer |
| "Monitor existing scraper" | Monitor mode | monitor-operator only |
Reusing existing files: If the user provides existing analysis results or crawler code, copy to _workspace/ and skip the corresponding agent.
Show full SKILL.md (241 more words)Show less
Data Transfer Protocol
| Strategy | Method | Purpose |
|---|---|---|
| File-based | _workspace/ directory | Design documents |
| Code-based | _workspace/src/ | Executable scraping code |
| Message-based | SendMessage | Key information transfer, feedback |
Error Handling
| Error Type | Strategy |
|---|---|
| Target site inaccessible | Analyze via cached/archived versions; explore alternative URLs |
| robots.txt blocks all crawling | Check for public API; propose API-based approach |
| Anti-bot blocks all requests | Escalate difficulty; propose headless browser or API alternatives |
| Dynamic rendering failure | Switch to Playwright; increase timeouts |
| Agent failure | Retry once; if still failing, proceed without that deliverable |
Test Scenarios
Normal Flow
Prompt: "Build a scraper to collect product prices from this e-commerce site daily" Expected result:
- Analysis: Site structure, pagination, anti-bot mechanisms, robots.txt compliance plan
- Crawler: Async httpx-based crawler with rate limiting and retry logic
- Parser: CSS selector-based price/title/URL extraction with validation
- Storage: SQLite with upsert deduplication, CSV daily export
- Monitoring: Cron schedule, parsing success rate alerts, site change detection
Analysis-Only Flow
Prompt: "Analyze whether this site can be scraped" Expected result:
- target-analyst performs full analysis and risk assessment
- Other agents are not deployed
Error Flow
Prompt: "Scrape data from this SPA with Cloudflare protection" Expected result:
- target-analyst identifies Cloudflare challenge and SPA rendering
- crawler-developer uses Playwright with appropriate wait strategies
- parser-engineer handles dynamic DOM with robust selectors
- monitor-operator sets up change detection for frequently updated selectors
Agent Extension Skills
| Skill | Path | Enhanced Agent | Role |
|---|---|---|---|
| selector-generator | .claude/skills/selector-generator/skill.md | parser-engineer | CSS/XPath selector generation, robustness scoring, change detection |
| anti-bot-analyzer | .claude/skills/anti-bot-analyzer/skill.md | target-analyst, crawler-developer | Anti-bot defense layer analysis, rate limit detection, legal risk assessment |
© revfactory, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in en/37-web-scraper/.claude/skills/web-scraper of revfactory/harness-100.
Open the folder on GitHubat commit 8e8d35c
Compare with similar skills
Web Scraper 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Web Scraper this skillrevfactory/harness-100 | 1.3k | — | ~1.7k | Automated safety check: Pass | Apache-2.0 | |
| Python Executorcortega26/chile-hub | 113 | 2 repos | ~1.5k | Automated safety check: Pass | MIT | |
| Selenium Opinion Crawler123321kk/opinion-agent-ultimate | 107 | — | ~631 | Automated safety check: Pass | None | |
| Web Scraping AutomationaAAaqwq/AGI-Super-Team | 105 | 1 repos | ~795 | Automated safety check: Notes | MIT | |
| Tmuxtrpc-group/trpc-agent-go | 1.8k | 23 repos | ~868 | Automated safety check: Pass | Apache-2.0 | |
| Ketch1broseidon/ketch | 696 | 1 repos | ~3.9k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Web Scraper
What does Web Scraper do?
Full pipeline for building web scraping systems with agent team collaboration. Web Scraper is an agent skill from revfactory/harness-100. Full pipeline for building web scraping systems with agent team collaboration.
When should I use Web Scraper?
Web Scraper fits situations like: requests like build a web scraper; develop a crawler; collect site data; web crawling system.
How do I install Web Scraper in Claude Code?
Run `npx skills add revfactory/harness-100 --skill web-scraper -a claude-code`. Or copy the skill folder (en/37-web-scraper/.claude/skills/web-scraper in revfactory/harness-100) into .claude/skills/web-scraper in your project. Claude Code loads it when a task matches its description.
How do I install Web Scraper in Codex?
Run `npx skills add revfactory/harness-100 --skill web-scraper -a codex`. Or copy the skill folder (en/37-web-scraper/.claude/skills/web-scraper in revfactory/harness-100) into .agents/skills/web-scraper in your project. Codex loads it when a task matches its description.
Can I use Web Scraper 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 web-scraper -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/web-scraper, .gemini/skills/web-scraper, .github/skills/web-scraper and .opencode/skills/web-scraper in your project.
What does Web Scraper need to run?
SKILL.md names no scripts, command-line tools or credentials: Web Scraper is instructions for the agent only.
Does Web Scraper 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 Web Scraper 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 Web Scraper use?
Web Scraper 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 Web Scraper use?
About 1.7k tokens (SKILL.md is roughly 6.9k 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 Web Scraper?
Skills that share tags, products or a category with Web Scraper: Python Executor (cortega26/chile-hub, 113 stars), Selenium Opinion Crawler (123321kk/opinion-agent-ultimate, 107 stars), Web Scraping Automation (aAAaqwq/AGI-Super-Team, 105 stars) and Tmux (trpc-group/trpc-agent-go, 1.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Web Scraper?
revfactory (a GitHub user) maintains it in revfactory/harness-100, which has 1,290 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.