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Agent skill

Scienceworld Object Classifier

by zjunlp in zjunlp/SkillNet

Moves a tested or examined object into a designated container (e.g., a specific colored box) based on a determined property.

MITAuto-check passedAgent Workflows

Install Scienceworld Object Classifier

skills CLI
$ npx skills add zjunlp/SkillNet --skill scienceworld-object-classifier -a claude-code

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

GitHub CLI
$ gh skill install zjunlp/SkillNet scienceworld-object-classifier --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-object-classifier .claude/skills/scienceworld-object-classifier && 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-object-classifier
GitHub stars
1.4k
Token cost
~534 tokens
SKILL.md length
268 words
Files
2 (incl. references)
Skills in repo
122
Repo updated
First seen
Licence
MIT

At a glance

Moves a tested or examined object into a designated container (e.g., a specific colored box) based on a determined property.

  • Works in 3 steps: Object Location: The object to be… → Container Location: The target container… → Decision Made: You must have already…
  • You have completed a test
  • SKILL.md covers Purpose, Prerequisites, Core Action and Workflow, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Scienceworld Object Classifier is an agent skill from zjunlp/SkillNet. Moves a tested or examined object into a designated container (e.g., a specific colored box) based on a determined property. Use when you have completed a test or inspection and need to fulfill a classification or sorting subtask. It takes the object and target container as inputs and performs the move action.

Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/conductivity_test_guide.md`).

It sits in Agent Workflows, covering Task breakdown. The repository describes itself as: Create, Evaluate, and Connect AI Skills. The licence is MIT.

When your agent uses it

  • You have completed a test
  • Inspection and need to fulfill a classification
  • Sorting subtask

Example prompts

  • “Use the scienceworld-object-classifier skill to move a tested or examined object into a designated container (e.g., a specific colored box) based on…”
  • “/scienceworld-object-classifier”

Workflow steps

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

  1. Object Location: The object to be classified must be present in the current room's environment (e.g., on the floor, on a table).
  2. Container Location: The target container (e.g., yellow box, purple box) must be present in the current room's environment.
  3. Decision Made: You must have already determined the object's property (e.g., electrically conductive vs. non-conductive) and know which…

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 Object Classifier loads about 534 tokens when it runs, and up to ~1.1k if it reads all its reference files. Until then it costs about 86 tokens; SKILL.md has 268 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~86
When it runs · the whole SKILL.md, loaded when a task matches
~534
With references · SKILL.md plus every file in references/, read only if the agent opens them
~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 zjunlp/SkillNet at commit 3fcebf8, republished under its MIT licence (© zjunlp). 268 words, ~534 tokens.

Download SKILL.mdSave it as .claude/skills/scienceworld-object-classifier/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
scienceworld-object-classifier
description
Moves a tested or examined object into a designated container (e.g., a specific colored box) based on a determined property. Use when you have completed a test or inspection and need to fulfill a classification or sorting subtask. It takes the object and target container as inputs and performs the move action.

Instructions

Purpose

This skill is used to finalize a classification task by moving an object into its designated container. It is triggered after a property test or inspection has been completed and a decision has been made.

Prerequisites

  1. Object Location: The object to be classified must be present in the current room's environment (e.g., on the floor, on a table).
  2. Container Location: The target container (e.g., yellow box, purple box) must be present in the current room's environment.
  3. Decision Made: You must have already determined the object's property (e.g., electrically conductive vs. non-conductive) and know which container corresponds to that property.

Core Action

Execute the move command to transfer the object into the correct container.

  • Command Format: move <OBJECT> to <CONTAINER>
  • Example: move metal pot to yellow box

Workflow

  1. Confirm Environment: Use look around to verify the object and target container are present.
  2. Execute Move: Perform the move action.
  3. Verify: Optionally, look at <CONTAINER> to confirm the object is now inside.

Important Notes

  • This skill is for the final sorting action only. Do not use it to perform the initial test or inspection.
  • Ensure the object is not in your inventory. If it is, drop it first (drop <OBJECT>).
  • The skill assumes the classification logic (e.g., interpreting a circuit test) has already been handled by a prior process.

Example

Task: Sort a metal pot after a conductivity test determined it is conductive.

  1. look around — confirm metal pot and yellow box are in the room.
  2. move metal pot to yellow box
  3. look at yellow box — verify: "containing a metal pot".

© 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-object-classifier of zjunlp/SkillNet.

  • SKILL.md
  • references/conductivity_test_guide.md

Open the folder on GitHubat commit 3fcebf8

Compare with similar skills

Scienceworld Object Classifier 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 Object Classifier compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Scienceworld Object Classifier this skillzjunlp/SkillNet1.4k—~534Automated safety check: PassMIT
MemPalace Task HandoffMemPalace/mempalace59k—~1.9kAutomated safety check: PassMIT
Planning And Task Breakdownabashev/vfs-s31068 repos~1.9kAutomated safety check: PassApache-2.0
Incremental Implementationaddyosmani/agent-skills103k1 repos~2.3kAutomated safety check: PassMIT
ULW Plan Workflowcode-yeongyu/oh-my-openagent70k—~3.9kAutomated safety check: PassCustom licence
Implementation Plan Creatortailcallhq/forgecode7.6k1 repos~1.1kAutomated safety check: PassApache-2.0

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Categories

Questions about Scienceworld Object Classifier

What does Scienceworld Object Classifier do?

Moves a tested or examined object into a designated container (e.g., a specific colored box) based on a determined property. Scienceworld Object Classifier is an agent skill from zjunlp/SkillNet., a specific colored box) based on a determined property.

When should I use Scienceworld Object Classifier?

Scienceworld Object Classifier fits situations like: you have completed a test; inspection and need to fulfill a classification; sorting subtask.

How do I install Scienceworld Object Classifier in Claude Code?

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

How do I install Scienceworld Object Classifier in Codex?

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

Can I use Scienceworld Object Classifier 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-object-classifier -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-object-classifier, .gemini/skills/scienceworld-object-classifier, .github/skills/scienceworld-object-classifier and .opencode/skills/scienceworld-object-classifier in your project.

What does Scienceworld Object Classifier need to run?

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

Does Scienceworld Object Classifier 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 Object Classifier 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 Object Classifier use?

Scienceworld Object Classifier 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 Object Classifier use?

About 534 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 535 tokens, read only when the agent opens those files.

What are the alternatives to Scienceworld Object Classifier?

Skills that share tags, products or a category with Scienceworld Object Classifier: MemPalace Task Handoff (MemPalace/mempalace, 59k stars), Planning And Task Breakdown (abashev/vfs-s3, 106 stars), Incremental Implementation (addyosmani/agent-skills, 103k stars) and ULW Plan Workflow (code-yeongyu/oh-my-openagent, 70k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Scienceworld Object Classifier?

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.