Agent skill

Sandbox XML

Parse XML feeds and sitemaps in a Code node or CodeAct action, with fast-xml-parser running on the host

AGPL-3.0Auto-check passedMarketing & SEO

Install Sandbox XML

skills CLI

$ npx skills add nodetool-ai/nodetool --skill sandbox-xml -a claude-code

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

GitHub CLI

$ gh skill install nodetool-ai/nodetool sandbox-xml --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/nodetool-ai/nodetool.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/sandbox-packs/sandbox-xml .claude/skills/sandbox-xml && 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 "sandbox-xml" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-xml into .claude/skills/sandbox-xml/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-xml", 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/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-xml

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 nodetool-ai/nodetool --skill sandbox-xml -a codex

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

GitHub CLI

$ gh skill install nodetool-ai/nodetool sandbox-xml --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .agents/skills && cp -r skills-src/packages/sandbox-packs/sandbox-xml .agents/skills/sandbox-xml && 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 "sandbox-xml" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-xml into .agents/skills/sandbox-xml/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-xml", 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 nodetool-ai/nodetool --skill sandbox-xml -a cursor

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

GitHub CLI

$ gh skill install nodetool-ai/nodetool sandbox-xml --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/packages/sandbox-packs/sandbox-xml .cursor/skills/sandbox-xml && 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 "sandbox-xml" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-xml into .cursor/skills/sandbox-xml/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-xml", 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/nodetool-ai/nodetool.git --path packages/sandbox-packs/sandbox-xml

--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 nodetool-ai/nodetool --skill sandbox-xml -a gemini-cli

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

GitHub CLI

$ gh skill install nodetool-ai/nodetool sandbox-xml --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/nodetool-ai/nodetool.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/packages/sandbox-packs/sandbox-xml .gemini/skills/sandbox-xml && 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 "sandbox-xml" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-xml into .gemini/skills/sandbox-xml/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-xml", 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 nodetool-ai/nodetool sandbox-xml

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 nodetool-ai/nodetool --skill sandbox-xml -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .github/skills && cp -r skills-src/packages/sandbox-packs/sandbox-xml .github/skills/sandbox-xml && 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 "sandbox-xml" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-xml into .github/skills/sandbox-xml/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-xml", 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 nodetool-ai/nodetool --skill sandbox-xml -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 nodetool-ai/nodetool sandbox-xml --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/nodetool-ai/nodetool.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/packages/sandbox-packs/sandbox-xml .opencode/skills/sandbox-xml && 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 "sandbox-xml" agent skill from https://github.com/nodetool-ai/nodetool/tree/main/packages/sandbox-packs/sandbox-xml into .opencode/skills/sandbox-xml/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sandbox-xml", 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: sandbox-xml
GitHub stars: 560
Token cost: ~293 tokens
SKILL.md length: 128 words
Files: 2
Skills in repo: 127
Repo updated: Oct 9, 2026
First seen: Oct 7, 2026
Licence: AGPL-3.0

At a glance

Parse XML feeds and sitemaps in a Code node or CodeAct action, with fast-xml-parser running on the host

Tasks that involve Technical SEO
SKILL.md covers parse — XML to a plain object and Gotchas
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Sandbox XML is an agent skill from nodetool-ai/nodetool. Parse XML feeds and sitemaps in a Code node or CodeAct action, with fast-xml-parser running on the host

Its SKILL.md is about 290 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `package.json`).

It sits in Marketing & SEO, covering Technical SEO. The repository describes itself as: Agent-first Creative Workspace. The licence is AGPL-3.0.

When your agent uses it

Tasks that involve Technical SEO

Example prompts

“/sandbox-xml”

What it can do on your machine

Read from SKILL.md and the folder at commit 58765d3. 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 javascript).
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

Sandbox XML loads about 293 tokens when it runs. Until then it costs about 29 tokens; SKILL.md has 128 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~29
When it runs · the whole SKILL.md, loaded when a task matches: ~293

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 nodetool-ai/nodetool at commit 58765d3, republished under its AGPL-3.0 licence (© nodetool-ai). 128 words, ~293 tokens.

Download SKILL.mdSave it as .claude/skills/sandbox-xml/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: sandbox-xml
description: Parse XML feeds and sitemaps in a Code node or CodeAct action, with fast-xml-parser running on the host

XML in the sandbox

Specifier: @nodetool-ai/sandbox-xml. Import it at the top of the body.

fast-xml-parser reads a bare window, which the guest does not have, so it cannot be compiled in. This pack is a host module: the import resolves to a generated facade over NodeTool's own implementation.

parse — XML to a plain object

import { parse } from "@nodetool-ai/sandbox-xml";

const feed = await parse(inputs.xml);
const items = feed?.rss?.channel?.item ?? [];
return { titles: items.map((i) => i.title) };

Attributes ride along prefixed @_ so they never collide with child-element keys; pass { attributes: false } to drop them. Text values stay text — a numeric-looking id must not change shape between runs.

Invalid XML throws with the parser's own reason rather than returning a partial tree.

Gotchas

parse is async.
5 MB of text per call.
A single child is not an array. channel.item is one object when the feed has one item; normalize with [].concat(x ?? []).

Files

SKILL.md and 1 other file in packages/sandbox-packs/sandbox-xml of nodetool-ai/nodetool.

SKILL.md
package.json

Open the folder on GitHubat commit 58765d3

Compare with similar skills

Sandbox XML 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.

Sandbox XML compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Sandbox XML this skillnodetool-ai/nodetool	560	—	~293	Automated safety check: Pass	AGPL-3.0	today
Hreflang and International SEOAgriciDaniel/claude-seo	19k	5 repos	~3.4k	Automated safety check: Pass	MIT	4 days ago
Google SEO APIsAgriciDaniel/claude-seo	19k	1 repos	~4.2k	Automated safety check: Pass	MIT	4 days ago
GEO-First SEO Audit Toolzubair-trabzada/geo-seo-claude	11k	—	~2.8k	Automated safety check: Notes	MIT	today
SEO Optimizerailabs-393/ai-labs-claude-skills	454	1 repos	~3.2k	Automated safety check: Pass	MIT	11 mo ago
SEO Drift MonitorAgriciDaniel/claude-seo	19k	1 repos	~1.9k	Automated safety check: Pass	MIT	4 days ago

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Questions about Sandbox XML

What does Sandbox XML do?

Parse XML feeds and sitemaps in a Code node or CodeAct action, with fast-xml-parser running on the host. Sandbox XML is an agent skill from nodetool-ai/nodetool.

When should I use Sandbox XML?

Sandbox XML fits situations like: tasks that involve Technical SEO.

How do I install Sandbox XML in Claude Code?

Run `npx skills add nodetool-ai/nodetool --skill sandbox-xml -a claude-code`. Or copy the skill folder (packages/sandbox-packs/sandbox-xml in nodetool-ai/nodetool) into .claude/skills/sandbox-xml in your project. Claude Code loads it when a task matches its description.

How do I install Sandbox XML in Codex?

Run `npx skills add nodetool-ai/nodetool --skill sandbox-xml -a codex`. Or copy the skill folder (packages/sandbox-packs/sandbox-xml in nodetool-ai/nodetool) into .agents/skills/sandbox-xml in your project. Codex loads it when a task matches its description.

Can I use Sandbox XML 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 nodetool-ai/nodetool --skill sandbox-xml -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sandbox-xml, .gemini/skills/sandbox-xml, .github/skills/sandbox-xml and .opencode/skills/sandbox-xml in your project.

What does Sandbox XML need to run?

SKILL.md names no scripts, command-line tools or credentials: Sandbox XML is instructions for the agent only.

Does Sandbox XML 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 Sandbox XML 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 Sandbox XML use?

Sandbox XML is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Sandbox XML use?

About 293 tokens (SKILL.md is roughly 1.2k 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 Sandbox XML?

Skills that share tags, products or a category with Sandbox XML: Hreflang and International SEO (AgriciDaniel/claude-seo, 19k stars), Google SEO APIs (AgriciDaniel/claude-seo, 19k stars), GEO-First SEO Audit Tool (zubair-trabzada/geo-seo-claude, 11k stars) and SEO Optimizer (ailabs-393/ai-labs-claude-skills, 454 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sandbox XML?

nodetool-ai (a GitHub organization) maintains it in nodetool-ai/nodetool, which has 560 GitHub stars. The repository holds 127 skills in this directory. The repository was last updated on October 9, 2026.

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

Install Sandbox XML

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

XML in the sandbox

parse — XML to a plain object

Gotchas

Files

Compare with similar skills

Similar skills

More from nodetool-ai/nodetool

Related

Questions about Sandbox XML