Crawl4AI Web Scraping
smallnest/goclaw
Scrapes sites, handles JavaScript-heavy pages and extracts structured data with Crawl4AI, through its crwl CLI or Python SDK, including schema-based extraction without an LLM.
A skill your agent uses when writing scripts, cron jobs, data pipelines, or any automated process that may be run multiple times.
Install Idempotent Script Design
$ npx skills add aiming-lab/MetaClaw --skill idempotent-script-design -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiming-lab/MetaClaw idempotent-script-design --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/aiming-lab/MetaClaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/memory_data/skills/idempotent-script-design .claude/skills/idempotent-script-design && 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 "idempotent-script-design" agent skill from https://github.com/aiming-lab/MetaClaw/tree/main/memory_data/skills/idempotent-script-design into .claude/skills/idempotent-script-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "idempotent-script-design", 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/aiming-lab/MetaClaw/tree/main/memory_data/skills/idempotent-script-designType 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 aiming-lab/MetaClaw --skill idempotent-script-design -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiming-lab/MetaClaw idempotent-script-design --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiming-lab/MetaClaw.git skills-src && mkdir -p .agents/skills && cp -r skills-src/memory_data/skills/idempotent-script-design .agents/skills/idempotent-script-design && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "idempotent-script-design" agent skill from https://github.com/aiming-lab/MetaClaw/tree/main/memory_data/skills/idempotent-script-design into .agents/skills/idempotent-script-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "idempotent-script-design", 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 aiming-lab/MetaClaw --skill idempotent-script-design -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiming-lab/MetaClaw idempotent-script-design --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiming-lab/MetaClaw.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/memory_data/skills/idempotent-script-design .cursor/skills/idempotent-script-design && 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 "idempotent-script-design" agent skill from https://github.com/aiming-lab/MetaClaw/tree/main/memory_data/skills/idempotent-script-design into .cursor/skills/idempotent-script-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "idempotent-script-design", 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/aiming-lab/MetaClaw.git --path memory_data/skills/idempotent-script-design--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 aiming-lab/MetaClaw --skill idempotent-script-design -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiming-lab/MetaClaw idempotent-script-design --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiming-lab/MetaClaw.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/memory_data/skills/idempotent-script-design .gemini/skills/idempotent-script-design && 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 "idempotent-script-design" agent skill from https://github.com/aiming-lab/MetaClaw/tree/main/memory_data/skills/idempotent-script-design into .gemini/skills/idempotent-script-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "idempotent-script-design", 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 aiming-lab/MetaClaw idempotent-script-designInstalls 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 aiming-lab/MetaClaw --skill idempotent-script-design -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiming-lab/MetaClaw.git skills-src && mkdir -p .github/skills && cp -r skills-src/memory_data/skills/idempotent-script-design .github/skills/idempotent-script-design && 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 "idempotent-script-design" agent skill from https://github.com/aiming-lab/MetaClaw/tree/main/memory_data/skills/idempotent-script-design into .github/skills/idempotent-script-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "idempotent-script-design", 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 aiming-lab/MetaClaw --skill idempotent-script-design -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiming-lab/MetaClaw idempotent-script-design --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiming-lab/MetaClaw.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/memory_data/skills/idempotent-script-design .opencode/skills/idempotent-script-design && 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 "idempotent-script-design" agent skill from https://github.com/aiming-lab/MetaClaw/tree/main/memory_data/skills/idempotent-script-design into .opencode/skills/idempotent-script-design/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "idempotent-script-design", 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
idempotent-script-design- GitHub stars
- 3.5k
- Token cost
- ~249 tokens
- SKILL.md length
- 105 words
- Files
- 1
- Skills in repo
- 36
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when writing scripts, cron jobs, data pipelines, or any automated process that may be run multiple times.
- Writing scripts
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Any automated process that may be run multiple times
What it does
Idempotent Script Design is an agent skill from aiming-lab/MetaClaw. Use this skill when writing scripts, cron jobs, data pipelines, or any automated process that may be run multiple times. Design every operation to be safely re-runnable without side effects.
Its SKILL.md is about 250 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 Data pipelines and ETL. The repository describes itself as: 🦞 Just talk to your agent — it learns and EVOLVES 🧬. The licence is MIT.
When your agent uses it
- Writing scripts
- Any automated process that may be run multiple times
Example prompts
- “/idempotent-script-design”
What it can do on your machine
Read from SKILL.md and the folder at commit 922caf3. 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
Idempotent Script Design loads about 249 tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 105 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 aiming-lab/MetaClaw at commit 922caf3, republished under its MIT licence (© aiming-lab). 105 words, ~249 tokens.
Download SKILL.mdSave it as
.claude/skills/idempotent-script-design/SKILL.md (or your agent's skills folder).- name
- idempotent-script-design
- description
- Use this skill when writing scripts, cron jobs, data pipelines, or any automated process that may be run multiple times. Design every operation to be safely re-runnable without side effects.
- category
- automation
Idempotent Script Design
An idempotent operation produces the same result whether run once or ten times.
Techniques:
- Check before create:
CREATE TABLE IF NOT EXISTS,mkdir -p, check file existence before writing. - Upsert instead of insert: Use
INSERT ... ON CONFLICT DO UPDATEin SQL. - Atomic writes: Write to a temp file, then rename — prevents corrupt partial output.
- Track progress: Write a completion marker or checkpoint so reruns skip done work.
Testing idempotency: Run your script twice on the same input and verify the output is identical.
Anti-patterns:
- Appending to a file without checking if the data is already there.
- Inserting rows without checking for duplicates.
© aiming-lab, MIT. 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 memory_data/skills/idempotent-script-design of aiming-lab/MetaClaw.
Open the folder on GitHubat commit 922caf3
Compare with similar skills
Idempotent Script Design 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 |
|---|---|---|---|---|---|---|
| Idempotent Script Design this skillaiming-lab/MetaClaw | 3.5k | — | ~249 | Automated safety check: Pass | MIT | |
| Crawl4AI Web Scrapingsmallnest/goclaw | 598 | 1 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Glue 09 10 Migrationaws-samples/aws-glue-samples | 1.5k | — | ~2.4k | Automated safety check: Pass | MIT-0 | |
| Migrate Glue Devendpoint To Interactive Sessionsaws-samples/aws-glue-samples | 1.5k | — | ~3.6k | Automated safety check: Pass | MIT-0 | |
| Dbt Databricks PR Readydatabricks/dbt-databricks | 380 | — | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| Mz Dbt ReleaseMaterializeInc/materialize | 6.4k | — | ~1.2k | Automated safety check: Pass | Custom licence |
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Related
Categories
Questions about Idempotent Script Design
What does Idempotent Script Design do?
A skill your agent uses when writing scripts, cron jobs, data pipelines, or any automated process that may be run multiple times. Idempotent Script Design is an agent skill from aiming-lab/MetaClaw. Use this skill when writing scripts, cron jobs, data pipelines, or any automated process that may be run multiple times.
When should I use Idempotent Script Design?
Idempotent Script Design fits situations like: writing scripts; any automated process that may be run multiple times.
How do I install Idempotent Script Design in Claude Code?
Run `npx skills add aiming-lab/MetaClaw --skill idempotent-script-design -a claude-code`. Or copy the skill folder (memory_data/skills/idempotent-script-design in aiming-lab/MetaClaw) into .claude/skills/idempotent-script-design in your project. Claude Code loads it when a task matches its description.
How do I install Idempotent Script Design in Codex?
Run `npx skills add aiming-lab/MetaClaw --skill idempotent-script-design -a codex`. Or copy the skill folder (memory_data/skills/idempotent-script-design in aiming-lab/MetaClaw) into .agents/skills/idempotent-script-design in your project. Codex loads it when a task matches its description.
Can I use Idempotent Script Design 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 aiming-lab/MetaClaw --skill idempotent-script-design -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/idempotent-script-design, .gemini/skills/idempotent-script-design, .github/skills/idempotent-script-design and .opencode/skills/idempotent-script-design in your project.
What does Idempotent Script Design need to run?
SKILL.md names no scripts, command-line tools or credentials: Idempotent Script Design is instructions for the agent only.
Does Idempotent Script Design 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 Idempotent Script Design 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 Idempotent Script Design use?
Idempotent Script Design is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Idempotent Script Design use?
About 249 tokens (SKILL.md is roughly 996 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 Idempotent Script Design?
Skills that share tags, products or a category with Idempotent Script Design: Crawl4AI Web Scraping (smallnest/goclaw, 598 stars), Glue 09 10 Migration (aws-samples/aws-glue-samples, 1.5k stars), Migrate Glue Devendpoint To Interactive Sessions (aws-samples/aws-glue-samples, 1.5k stars) and Dbt Databricks PR Ready (databricks/dbt-databricks, 380 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Idempotent Script Design?
aiming-lab (a GitHub organization) maintains it in aiming-lab/MetaClaw, which has 3,458 GitHub stars. The repository holds 36 skills in this directory. The repository was last updated on June 7, 2026.
Source: aiming-lab/MetaClaw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.