Agent skill · Workflow & Productivity

scienceworld-substance-fetcher

Locates and retrieves a target substance or material from a container in the environment. Use this skill when the task requires processing a specific substance (e.g., chocolate, sodium chloride, a chemical) and you need to find and acquire it. Searches rooms and containers (fridge, cupboard, counter) and retrieves the substance via pick up or move actions.

zjunlpgithub.com/zjunlpGitHub ↗
claude-codeMIT
Install
npx skills add zjunlp/SkillNet --skill scienceworld-substance-fetcher --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 2
SKILL.md size: 3 KB
Bundled scripts: none
Path: experiments/src/skills/scienceworld/scienceworld-substance-fetcher/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 1,117
Language: Python

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Skill: Substance Fetcher ## Primary Objective Locate a specified target substance (e.g., `chocolate`, `sodium chloride`) within the environment and retrieve it for subsequent processing. ## Core Logic & Workflow 1. **Identify Target:** The target substance name is provided as part of the task initiation (e.g., "Your task is to measure the melting point of **chocolate**"). 2. **Search Strategy:** * If the current room does not contain the target, use `teleport to [room]` to navigate to likely locations (e.g., `kitchen`, `workshop`, `greenhouse`). * Use `look around` to survey a room and identify containers. 3. **Locate in Container:** * Examine open containers (`fridge`, `cupboard`, `counter`, `drawer`) listed in the room description. * The target substance is often found inside a container (e.g., "In the fridge is: **chocolate**"). 4. **Retrieval Action:** * If the substance is a portable object, use `pick up [substance]`. * If the substance is inside another object (e.g., in a pot), use `move [substance] to [destination container]` to prepare it for use. * **Key Assumption:** All containers are already open. Do not use `open` or `close` actions. ## Critical Constraints & Notes *

What's inside
Steps it walks through
  1. Primary Objective
  2. Core Logic & Workflow
  3. Critical Constraints & Notes
  4. Example Execution (Based on Trajectory)
  5. Error Handling
Ships with 1 file
  • references/action_primer.md
More from SkillNet
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About this skill
What does the scienceworld-substance-fetcher skill do?

Locates and retrieves a target substance or material from a container in the environment. Use this skill when the task requires processing a specific substance (e.g., chocolate, sodium chloride, a chemical) and you need to find and acquire it. Searches rooms and containers (fridge, cupboard, counter) and retrieves the substance via pick up or move actions.

How do I install it?

Run `npx skills add zjunlp/SkillNet --skill scienceworld-substance-fetcher --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From zjunlp/SkillNet, a repository with 1,117 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

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