Agent skill

Alfworld Object Heater

by zjunlp in zjunlp/SkillNet

Heats a specified object using an available heating appliance (e.g., microwave, stoveburner).

MITAuto-check passedAgent Workflows

Install Alfworld Object Heater

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

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

GitHub CLI
$ gh skill install zjunlp/SkillNet alfworld-object-heater --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-heater .claude/skills/alfworld-object-heater && 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-heater
GitHub stars
1.4k
Token cost
~480 tokens
SKILL.md length
180 words
Files
2 (incl. references)
Skills in repo
122
Repo updated
First seen
Licence
MIT

At a glance

Heats a specified object using an available heating appliance (e.g., microwave, stoveburner).

  • Works in 4 steps: Navigate: go to {appliance} (e.g., go to… → Check state: If observation says… → Heat: heat {object} with {appliance} --… → …
  • You are holding an object that requires heating and need to navigate to and operate the heating appliance
  • SKILL.md covers Prerequisites, Workflow, Action Format and Error Recovery, plus 1 more section
  • Calls go

What it does

Alfworld Object Heater is an agent skill from zjunlp/SkillNet. Heats a specified object using an available heating appliance (e.g., microwave, stoveburner). Use when you are holding an object that requires heating and need to navigate to and operate the heating appliance. Takes the object and appliance as inputs and results in the object being in a heated state.

Its SKILL.md is about 480 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_breakdown.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

  • You are holding an object that requires heating and need to navigate to and operate the heating appliance

Example prompts

  • “Use the alfworld-object-heater skill to heat a specified object using an available heating appliance (e.g., microwave, stoveburner)”
  • “/alfworld-object-heater”

Workflow steps

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

  1. Navigate: go to {appliance} (e.g., go to microwave 1)
  2. Check state: If observation says appliance is closed, execute open {appliance} -- verify observation confirms it is now open
  3. Heat: heat {object} with {appliance} -- verify observation confirms "You heat the {object}"
  4. (Optional) Place: If the task requires it, navigate to the destination and place the heated object

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

    Shell commands in SKILL.md call:

    • go

    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 Heater loads about 480 tokens when it runs, and up to ~963 if it reads all its reference files. Until then it costs about 81 tokens; SKILL.md has 180 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~81
When it runs · the whole SKILL.md, loaded when a task matches
~480
With references · SKILL.md plus every file in references/, read only if the agent opens them
~963

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). 180 words, ~480 tokens.

Download SKILL.mdSave it as .claude/skills/alfworld-object-heater/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
alfworld-object-heater
description
Heats a specified object using an available heating appliance (e.g., microwave, stoveburner). Use when you are holding an object that requires heating and need to navigate to and operate the heating appliance. Takes the object and appliance as inputs and results in the object being in a heated state.

Instructions

Heat an object you are holding using a compatible heating appliance (microwave or stoveburner).

Prerequisites

  • The target object must be in your inventory
  • A heating appliance (microwave, stoveburner) must exist in the environment

Workflow

  1. Navigate: go to {appliance} (e.g., go to microwave 1)
  2. Check state: If observation says appliance is closed, execute open {appliance} -- verify observation confirms it is now open
  3. Heat: heat {object} with {appliance} -- verify observation confirms "You heat the {object}"
  4. (Optional) Place: If the task requires it, navigate to the destination and place the heated object

Action Format

  • go to microwave 1 / go to stoveburner 1
  • open microwave 1
  • heat {object} with {appliance} (e.g., heat potato 1 with microwave 1)

Error Recovery

  • "Nothing happened" on heat: Check (1) you are holding the object, (2) appliance is open, (3) appliance name is correct
  • Appliance occupied: Take the existing item out first, then retry

Example

Scenario: You are holding potato 1 and need to heat it.

Thought: I need to heat the potato. I'll go to the microwave.
Action: go to microwave 1
Observation: The microwave 1 is closed.
Action: open microwave 1
Observation: You open the microwave 1. The microwave 1 is open. In it, you see nothing.
Action: heat potato 1 with microwave 1
Observation: You heat the potato 1 using the microwave 1.

Result: The potato is now heated. Proceed to place it at the destination if required by the task.

© 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-heater of zjunlp/SkillNet.

  • SKILL.md
  • references/trajectory_breakdown.md

Open the folder on GitHubat commit c527136

Compare with similar skills

Alfworld Object Heater 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 Heater compared with similar skills
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Alfworld Object Heater this skillzjunlp/SkillNet1.4k—~480Automated 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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Categories

Questions about Alfworld Object Heater

What does Alfworld Object Heater do?

Heats a specified object using an available heating appliance (e.g., microwave, stoveburner). Alfworld Object Heater is an agent skill from zjunlp/SkillNet., microwave, stoveburner).

When should I use Alfworld Object Heater?

Alfworld Object Heater fits situations like: you are holding an object that requires heating and need to navigate to and operate the heating appliance.

How do I install Alfworld Object Heater in Claude Code?

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

How do I install Alfworld Object Heater in Codex?

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

Can I use Alfworld Object Heater 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-heater -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-heater, .gemini/skills/alfworld-object-heater, .github/skills/alfworld-object-heater and .opencode/skills/alfworld-object-heater in your project.

What does Alfworld Object Heater need to run?

Going by SKILL.md and its folder, Alfworld Object Heater needs the command-line tools its instructions call (go).

Does Alfworld Object Heater 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 Heater 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 Heater use?

Alfworld Object Heater 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 Heater use?

About 480 tokens (SKILL.md is roughly 1.9k 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 483 tokens, read only when the agent opens those files.

What are the alternatives to Alfworld Object Heater?

Skills that share tags, products or a category with Alfworld Object Heater: 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 Heater?

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.