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Agent skill

Alfworld Object Retriever

by zjunlp in zjunlp/SkillNet

This skill picks up a target object from a specified receptacle after the object has been visually confirmed.

MITAuto-check passedAgent Workflows

Install Alfworld Object Retriever

skills CLI
$ npx skills add zjunlp/SkillNet --skill alfworld-object-retriever -a claude-code

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

GitHub CLI
$ gh skill install zjunlp/SkillNet alfworld-object-retriever --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/alfworld/alfworld-object-retriever .claude/skills/alfworld-object-retriever && 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
alfworld-object-retriever
GitHub stars
1.4k
Token cost
~211 tokens
SKILL.md length
69 words
Files
2 (incl. references)
Skills in repo
122
Repo updated
First seen
Licence
MIT

At a glance

This skill picks up a target object from a specified receptacle after the object has been visually confirmed.

  • Works in 2 steps: Visual Confirmation: You must have… → Proximity: You should be at or near the…
  • The agent has located an object in a receptacle and needs to acquire it
  • SKILL.md covers Prerequisites and Core Action Sequence
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Alfworld Object Retriever is an agent skill from zjunlp/SkillNet. This skill picks up a target object from a specified receptacle after the object has been visually confirmed. Use this skill when the agent has located an object in a receptacle and needs to acquire it. It requires the object and source receptacle as inputs and results in the object being added to the agent's inventory.

Its SKILL.md is about 210 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/trajectory_example.md`).

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

When your agent uses it

  • The agent has located an object in a receptacle and needs to acquire it

Example prompts

  • “/alfworld-object-retriever”

Workflow steps

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

  1. Visual Confirmation: You must have directly observed the target object within the specified source receptacle in a prior observation…
  2. Proximity: You should be at or near the location of the source receptacle.

What it can do on your machine

Read from SKILL.md and the folder at commit c527136. 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

Alfworld Object Retriever loads about 211 tokens when it runs, and up to ~512 if it reads all its reference files. Until then it costs about 87 tokens; SKILL.md has 69 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~87
When it runs · the whole SKILL.md, loaded when a task matches
~211
With references · SKILL.md plus every file in references/, read only if the agent opens them
~512

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 c527136, republished under its MIT licence (© zjunlp). 69 words, ~211 tokens.

Download SKILL.mdSave it as .claude/skills/alfworld-object-retriever/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
alfworld-object-retriever
description
This skill picks up a target object from a specified receptacle after the object has been visually confirmed. Use this skill when the agent has located an object in a receptacle and needs to acquire it. It requires the object and source receptacle as inputs and results in the object being added to the agent's inventory.

Instructions

Use this skill to acquire a target object from a known source receptacle in the ALFWorld environment.

Prerequisites

  1. Visual Confirmation: You must have directly observed the target object within the specified source receptacle in a prior observation (e.g., "On the {recep}, you see a {obj}...").
  2. Proximity: You should be at or near the location of the source receptacle.

Core Action Sequence

Execute the following action precisely:

© 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/alfworld/alfworld-object-retriever of zjunlp/SkillNet.

  • SKILL.md
  • references/trajectory_example.md

Open the folder on GitHubat commit c527136

Compare with similar skills

Alfworld Object Retriever 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.

Alfworld Object Retriever compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Alfworld Object Retriever this skillzjunlp/SkillNet1.4k—~211Automated safety check: PassMIT
MCP Server Builderanthropics/skills180k63 repos~2.3kAutomated safety check: PassApache-2.0
Hook Development for Claude Code Pluginsanthropics/claude-plugins-official38k10 repos~4.1kAutomated safety check: NotesApache-2.0
Using Superpowersfarm-fe/farm5.6k35 repos~1.4kAutomated safety check: PassMIT
Executing Plans Inlineobra/superpowers297k2 repos~5.1kAutomated safety check: PassMIT
Skill CreatorAzure/azqr79589 repos~8.2kAutomated safety check: PassApache-2.0

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More from zjunlp/SkillNet

All 122 skills in this repo

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  • Alfworld Receptacle Searcher

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  • Alfworld Device Operator

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  • Alfworld Environment Scanner

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    Performs an initial scan of the ALFWorld environment to identify all visible objects and receptacles.

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  • Alfworld Heat Object With Appliance

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Categories

Questions about Alfworld Object Retriever

What does Alfworld Object Retriever do?

This skill picks up a target object from a specified receptacle after the object has been visually confirmed. Alfworld Object Retriever is an agent skill from zjunlp/SkillNet. This skill picks up a target object from a specified receptacle after the object has been visually confirmed.

When should I use Alfworld Object Retriever?

Alfworld Object Retriever fits situations like: the agent has located an object in a receptacle and needs to acquire it.

How do I install Alfworld Object Retriever in Claude Code?

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

How do I install Alfworld Object Retriever in Codex?

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

Can I use Alfworld Object Retriever 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 alfworld-object-retriever -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/alfworld-object-retriever, .gemini/skills/alfworld-object-retriever, .github/skills/alfworld-object-retriever and .opencode/skills/alfworld-object-retriever in your project.

What does Alfworld Object Retriever need to run?

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

Does Alfworld Object Retriever 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 Alfworld Object Retriever 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 Alfworld Object Retriever use?

Alfworld Object Retriever 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 Alfworld Object Retriever use?

About 211 tokens (SKILL.md is roughly 844 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 301 tokens, read only when the agent opens those files.

What are the alternatives to Alfworld Object Retriever?

Skills that share tags, products or a category with Alfworld Object Retriever: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 297k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Alfworld Object Retriever?

zjunlp (a GitHub organization) maintains it in zjunlp/SkillNet, which has 1,394 GitHub stars. The repository holds 122 skills in this directory. The repository was last updated on October 9, 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.