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Agent skill

Scienceworld Tool User

by zjunlp in zjunlp/SkillNet

Uses a tool from inventory on a target object or location to perform a specific environmental interaction, such as digging, cutting, or measuring.

MITAuto-check passedFrontend & Design

Install Scienceworld Tool User

skills CLI
$ npx skills add zjunlp/SkillNet --skill scienceworld-tool-user -a claude-code

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

GitHub CLI
$ gh skill install zjunlp/SkillNet scienceworld-tool-user --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/zjunlp/SkillNet.git skills-src && mkdir -p .claude/skills && cp -r skills-src/experiments/src/skills/scienceworld/scienceworld-tool-user .claude/skills/scienceworld-tool-user && 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/

Facts

Skill name
scienceworld-tool-user
GitHub stars
1.4k
Token cost
~524 tokens
SKILL.md length
235 words
Files
2 (incl. references)
Skills in repo
122
Repo updated
First seen
Licence
MIT

At a glance

Uses a tool from inventory on a target object or location to perform a specific environmental interaction, such as digging, cutting, or measuring.

  • Works in 4 steps: Ensure Tool in Inventory: The required… → Identify Target: Determine the exact… → Execute: use TOOL on TARGET. → …
  • A task requires modifying the environment
  • SKILL.md covers Purpose, When to Use, Core Workflow and Key Actions, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Scienceworld Tool User is an agent skill from zjunlp/SkillNet. Uses a tool from inventory on a target object or location to perform a specific environmental interaction, such as digging, cutting, or measuring. Use this skill when a task requires modifying the environment or manipulating materials with a tool (e.g., using a shovel to dig soil, a thermometer to measure temperature, or an axe to cut wood). Takes the tool and target as inputs and outputs the result of the interaction.

Its SKILL.md is about 520 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/example_trajectory.md`).

It sits in Frontend & Design, covering Accessibility. The repository describes itself as: Create, Evaluate, and Connect AI Skills. The licence is MIT.

When your agent uses it

  • A task requires modifying the environment
  • Manipulating materials with a tool (e.g.
  • Using a shovel to dig soil
  • A thermometer to measure temperature

Example prompts

  • “Use the scienceworld-tool-user skill to use a tool from inventory on a target object or location to perform a specific environmental interaction…”
  • “/scienceworld-tool-user”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Ensure Tool in Inventory: The required tool (e.g., shovel, thermometer, axe) must be in your inventory. Use pick up OBJ if it is not.
  2. Identify Target: Determine the exact target object or location name (e.g., ground, tree, metal fork).
  3. Execute: use TOOL on TARGET.
  4. Interpret Result: Read the observation output to determine the outcome (e.g., temperature reading, state change).

What it can do on your machine

Read from SKILL.md and the folder at commit 3fcebf8. 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

Scienceworld Tool User loads about 524 tokens when it runs, and up to ~751 if it reads all its reference files. Until then it costs about 111 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
~111
When it runs · the whole SKILL.md, loaded when a task matches
~524
With references · SKILL.md plus every file in references/, read only if the agent opens them
~751

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 zjunlp/SkillNet at commit 3fcebf8, republished under its MIT licence (© zjunlp). 235 words, ~524 tokens.

Download SKILL.mdSave it as .claude/skills/scienceworld-tool-user/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
scienceworld-tool-user
description
Uses a tool from inventory on a target object or location to perform a specific environmental interaction, such as digging, cutting, or measuring. Use this skill when a task requires modifying the environment or manipulating materials with a tool (e.g., using a shovel to dig soil, a thermometer to measure temperature, or an axe to cut wood). Takes the tool and target as inputs and outputs the result of the interaction.

Skill: Tool User

Purpose

Perform a physical action on the environment using a tool from your inventory. The core action is use TOOL on TARGET.

When to Use

  • A task requires modifying the environment (digging, cutting, heating).
  • You need to measure a property of an object (temperature, conductivity).
  • A tool-based interaction is the next step in your experiment workflow.

Core Workflow

  1. Ensure Tool in Inventory: The required tool (e.g., shovel, thermometer, axe) must be in your inventory. Use pick up OBJ if it is not.
  2. Identify Target: Determine the exact target object or location name (e.g., ground, tree, metal fork).
  3. Execute: use TOOL on TARGET.
  4. Interpret Result: Read the observation output to determine the outcome (e.g., temperature reading, state change).

Key Actions

ActionPurpose
pick up OBJAcquire tool if not in inventory
use OBJ on OBJPerform tool interaction
look aroundConfirm target identity and location

Example

Task: Measure the temperature of a metal fork using a thermometer.

  1. pick up thermometer — ensure tool is in inventory
  2. use thermometer on metal fork
  3. Observation: "a thermometer, currently reading a temperature of 72 degrees celsius"

Important Notes

  • The tool must be in your inventory before use. The pick up action is a prerequisite.
  • Use exact object names as they appear in the environment description.
  • Some tools produce measurable outputs (thermometer readings); others produce state changes (shovel digs soil). Interpret accordingly.

© zjunlp, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in experiments/src/skills/scienceworld/scienceworld-tool-user of zjunlp/SkillNet.

  • SKILL.md
  • references/example_trajectory.md

Open the folder on GitHubat commit 3fcebf8

Compare with similar skills

Scienceworld Tool User 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.

Scienceworld Tool User compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Scienceworld Tool User this skillzjunlp/SkillNet1.4k—~524Automated safety check: PassMIT
Web Interface Guidelines Reviewervercel-labs/openreview1.7k98 repos~308Automated safety check: PassNone
Accessibility Reviewmarkmead/hyperui12k1 repos~1.1kAutomated safety check: PassMIT
Web Animation DesignbaptisteArno/typebot.io11k2 repos~2.7kAutomated safety check: PassCustom licence
Accessibility Fixeribelick/ui-skills9.5k4 repos~1.2kAutomated safety check: PassMIT
Wcag Audit PatternsvmDeshpande/ai-agent-automation17811 repos~610Automated safety check: PassApache-2.0

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Categories

Questions about Scienceworld Tool User

What does Scienceworld Tool User do?

Uses a tool from inventory on a target object or location to perform a specific environmental interaction, such as digging, cutting, or measuring. Scienceworld Tool User is an agent skill from zjunlp/SkillNet. Uses a tool from inventory on a target object or location to perform a specific environmental interaction, such as digging, cutting, or measuring.

When should I use Scienceworld Tool User?

Scienceworld Tool User fits situations like: A task requires modifying the environment; manipulating materials with a tool (e.g; using a shovel to dig soil; A thermometer to measure temperature.

How do I install Scienceworld Tool User in Claude Code?

Run `npx skills add zjunlp/SkillNet --skill scienceworld-tool-user -a claude-code`. Or copy the skill folder (experiments/src/skills/scienceworld/scienceworld-tool-user in zjunlp/SkillNet) into .claude/skills/scienceworld-tool-user in your project. Claude Code loads it when a task matches its description.

How do I install Scienceworld Tool User in Codex?

Run `npx skills add zjunlp/SkillNet --skill scienceworld-tool-user -a codex`. Or copy the skill folder (experiments/src/skills/scienceworld/scienceworld-tool-user in zjunlp/SkillNet) into .agents/skills/scienceworld-tool-user in your project. Codex loads it when a task matches its description.

Can I use Scienceworld Tool User 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 zjunlp/SkillNet --skill scienceworld-tool-user -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/scienceworld-tool-user, .gemini/skills/scienceworld-tool-user, .github/skills/scienceworld-tool-user and .opencode/skills/scienceworld-tool-user in your project.

What does Scienceworld Tool User need to run?

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

Does Scienceworld Tool User 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 Scienceworld Tool User 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 Scienceworld Tool User use?

Scienceworld Tool User 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 Scienceworld Tool User use?

About 524 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 227 tokens, read only when the agent opens those files.

What are the alternatives to Scienceworld Tool User?

Skills that share tags, products or a category with Scienceworld Tool User: Web Interface Guidelines Reviewer (vercel-labs/openreview, 1.7k stars), Accessibility Review (markmead/hyperui, 12k stars), Web Animation Design (baptisteArno/typebot.io, 11k stars) and Accessibility Fixer (ibelick/ui-skills, 9.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Scienceworld Tool User?

zjunlp (a GitHub organization) maintains it in zjunlp/SkillNet, which has 1,393 GitHub stars. The repository holds 122 skills in this directory. The repository was last updated on October 7, 2026.

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