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Agent skill

Alfworld Receptacle Operator

by zjunlp in zjunlp/SkillNet

This skill opens or closes a receptacle (like a fridge, cabinet, or microwave) to access its interior or secure it.

MITAuto-check passedAgent Workflows

Install Alfworld Receptacle Operator

skills CLI
$ npx skills add zjunlp/SkillNet --skill alfworld-receptacle-operator -a claude-code

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

GitHub CLI
$ gh skill install zjunlp/SkillNet alfworld-receptacle-operator --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-receptacle-operator .claude/skills/alfworld-receptacle-operator && 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-receptacle-operator
GitHub stars
1.4k
Token cost
~542 tokens
SKILL.md length
247 words
Files
2 (incl. references)
Skills in repo
122
Repo updated
First seen
Licence
MIT

At a glance

This skill opens or closes a receptacle (like a fridge, cabinet, or microwave) to access its interior or secure it.

  • Works in 2 steps: Access a closed receptacle to place an… → Secure an open receptacle after…
  • Agent Workflows work in your project
  • SKILL.md covers When to Use, Core Decision Logic, Example from Trajectory and Important Notes
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Alfworld Receptacle Operator is an agent skill from zjunlp/SkillNet. This skill opens or closes a receptacle (like a fridge, cabinet, or microwave) to access its interior or secure it. It should be triggered when an object needs to be placed inside/retrieved from a closed container, or when an open container should be closed (e.g., for energy efficiency or task cleanliness). The skill decides the appropriate 'open' or 'close' action based on the receptacle's current state and the task context.

Its SKILL.md is about 540 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/state_diagrams.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

  • Agent Workflows work in your project

Example prompts

  • “action based on the receptacle”
  • “/alfworld-receptacle-operator”

Workflow steps

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

  1. Access a closed receptacle to place an object inside or take an object out.
  2. Secure an open receptacle after accessing it (e.g., to conserve energy, maintain cleanliness, or complete a task step).

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 Receptacle Operator loads about 542 tokens when it runs, and up to ~560 if it reads all its reference files. Until then it costs about 115 tokens; SKILL.md has 247 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~115
When it runs · the whole SKILL.md, loaded when a task matches
~542
With references · SKILL.md plus every file in references/, read only if the agent opens them
~560

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). 247 words, ~542 tokens.

Download SKILL.mdSave it as .claude/skills/alfworld-receptacle-operator/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
alfworld-receptacle-operator
description
This skill opens or closes a receptacle (like a fridge, cabinet, or microwave) to access its interior or secure it. It should be triggered when an object needs to be placed inside/retrieved from a closed container, or when an open container should be closed (e.g., for energy efficiency or task cleanliness). The skill decides the appropriate 'open' or 'close' action based on the receptacle's current state and the task context.

Skill: Receptacle Operator

When to Use

Use this skill when you need to:

  1. Access a closed receptacle to place an object inside or take an object out.
  2. Secure an open receptacle after accessing it (e.g., to conserve energy, maintain cleanliness, or complete a task step).

Core Decision Logic

  1. Check the receptacle's state from the observation.
    • If it reports "is closed" or "is open", note the state.
    • If the interior is visible (e.g., "In it, you see..."), it is open.
  2. Choose action based on goal:
    • Goal requires interior access (e.g., "put in microwave", "take from fridge"):
      • If closed → open {recep}
      • If open → proceed with next step (e.g., put or take)
    • Goal requires securing receptacle (e.g., after accessing, or for efficiency):
      • If open → close {recep}
      • If closed → no action needed
  3. Execute the action using the exact format: Action: open {recep} or Action: close {recep}

Example from Trajectory

  • Task: "cool some tomato and put it in microwave"
  • Step 1: At closed fridge → Action: open fridge 1
  • Step 2: After checking interior → Action: close fridge 1 (for efficiency)
  • Step 3: At closed microwave → Action: open microwave 1

Important Notes

  • Always verify the receptacle state from the latest observation before acting.
  • The skill only handles open and close actions. Other actions (like take, put, cool) are separate skills.
  • If "Nothing happened" is observed after your action, the receptacle may already be in that state—re-check and adjust.

For detailed state diagrams and edge cases, see the reference documentation.

© 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-receptacle-operator of zjunlp/SkillNet.

  • SKILL.md
  • references/state_diagrams.md

Open the folder on GitHubat commit c527136

Compare with similar skills

Alfworld Receptacle Operator 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 Receptacle Operator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Alfworld Receptacle Operator this skillzjunlp/SkillNet1.4k—~542Automated 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/azqr79689 repos~8.2kAutomated safety check: PassApache-2.0

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Categories

Questions about Alfworld Receptacle Operator

What does Alfworld Receptacle Operator do?

This skill opens or closes a receptacle (like a fridge, cabinet, or microwave) to access its interior or secure it. Alfworld Receptacle Operator is an agent skill from zjunlp/SkillNet. This skill opens or closes a receptacle (like a fridge, cabinet, or microwave) to access its interior or secure it.

When should I use Alfworld Receptacle Operator?

Alfworld Receptacle Operator fits situations like: agent Workflows work in your project.

How do I install Alfworld Receptacle Operator in Claude Code?

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

How do I install Alfworld Receptacle Operator in Codex?

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

Can I use Alfworld Receptacle Operator 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-receptacle-operator -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-receptacle-operator, .gemini/skills/alfworld-receptacle-operator, .github/skills/alfworld-receptacle-operator and .opencode/skills/alfworld-receptacle-operator in your project.

What does Alfworld Receptacle Operator need to run?

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

Does Alfworld Receptacle Operator 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 Receptacle Operator 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 Receptacle Operator use?

Alfworld Receptacle Operator 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 Receptacle Operator use?

About 542 tokens (SKILL.md is roughly 2.2k 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 18 tokens, read only when the agent opens those files.

What are the alternatives to Alfworld Receptacle Operator?

Skills that share tags, products or a category with Alfworld Receptacle Operator: 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 Receptacle Operator?

zjunlp (a GitHub organization) maintains it in zjunlp/SkillNet, which has 1,397 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.