How do I install the Scienceworld Object Selector skill?

Run npx skillmds add zjunlp/scienceworld-object-selector in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Scienceworld Object Selector safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Scienceworld Object Selector?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Scienceworld Object Selector free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Scienceworld Object Selector?

zjunlp (@zjunlp) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Scienceworld Object Selector by zjunlp

Name: Scienceworld Object Selector
Rating: 4.666666666666667 (3 reviews)
Author: zjunlp

Scienceworld Object Selector

Use when the agent needs to choose a specific object from multiple candidates in the environment based on task criteria such as object type (non-living thing, electrical component, container), properties, or category. This skill surveys visible objects with "look around", evaluates each against the task requirements, selects the most suitable candidate, and signals intent with "focus on [OBJECT]".

zjunlp dafe791 2 files · 4.4 KB Updated Sep 10, 2026

File contents

Skill: scienceworld-object-selector

Purpose

Identify and select the correct object from visible candidates in the ScienceWorld environment based on task-defined criteria (e.g., "non-living thing", "electrical component", "container"), then signal intent with a focus on action.

When to Use

When a task requires choosing a specific type of object from multiple visible options
When the agent must classify objects by property (living/non-living, material type, function) to select one
When the task instructs finding and interacting with a particular category of object

Workflow

Survey the environment -- Use look around to list all visible objects in the current location.
Evaluate candidates -- For each visible object, determine if it matches the task criteria. Exclude target containers (e.g., destination boxes) and fixed furniture from candidates.
Select the best match -- Choose the first suitable, portable object unless the task specifies a preference (e.g., "largest", "closest").
Signal intent -- Execute focus on [OBJECT] to confirm selection.
Execute the task action -- Proceed with the required action (e.g., pick up, move, use).

Examples

Example 1: Find a non-living thing and move it

Task: "Find a non-living thing. First, focus on the thing. Then, move it to the purple box."

> look around
You see: purple box, table, battery, black wire, blue light bulb, red light bulb, red wire, switch, violet light bulb, yellow wire, ultra low temperature freezer.

Evaluation: Purple box is the destination. Table and freezer are fixed furniture. Remaining items (battery, wires, bulbs, switch) are all non-living and portable.

> focus on black wire
You focus on the black wire.

> move black wire to purple box
You move the black wire to the purple box.

Example 2: Find an electrical component

Task: "Find an electrical component and place it on the workbench."

> look around
You see: workbench, chair, battery, glass cup, red wire, notebook.

> focus on battery
You focus on the battery.

> move battery to workbench
You move the battery to the workbench.

Key Principles

Exclude destinations -- Never select the target container or destination as the candidate object.
Verify if uncertain -- Use examine [OBJECT] for more detail about an object's properties before selecting.
Task alignment -- The selection should enable the next action in the task sequence.

---name: scienceworld-object-selectordescription: Use when the agent needs to choose a specific object from multiple candidates in the environment based on task criteria such as object type (non-living thing, electrical component, container), properties, or category. This skill surveys visible objects with "look around", evaluates each against the task requirements, selects the most suitable candidate, and signals intent with "focus on [OBJECT]".---# Skill: scienceworld-object-selector## PurposeIdentify and select the correct object from visible candidates in the ScienceWorld environment based on task-defined criteria (e.g., "non-living thing", "electrical component", "container"), then signal intent with a `focus on` action.## When to Use- When a task requires choosing a specific type of object from multiple visible options- When the agent must classify objects by property (living/non-living, material type, function) to select one- When the task instructs finding and interacting with a particular category of object## Workflow1. **Survey the environment** -- Use `look around` to list all visible objects in the current location.2. **Evaluate candidates** -- For each visible object, determine if it matches the task criteria. Exclude target containers (e.g., destination boxes) and fixed furniture from candidates.3. **Select the best match** -- Choose the first suitable, portable object unless the task specifies a preference (e.g., "largest", "closest").4. **Signal intent** -- Execute `focus on [OBJECT]` to confirm selection.5. **Execute the task action** -- Proceed with the required action (e.g., `pick up`, `move`, `use`).## Examples### Example 1: Find a non-living thing and move it**Task:** "Find a non-living thing. First, focus on the thing. Then, move it to the purple box."```> look aroundYou see: purple box, table, battery, black wire, blue light bulb, red light bulb, red wire, switch, violet light bulb, yellow wire, ultra low temperature freezer.```**Evaluation:** Purple box is the destination. Table and freezer are fixed furniture. Remaining items (battery, wires, bulbs, switch) are all non-living and portable.```> focus on black wireYou focus on the black wire.> move black wire to purple boxYou move the black wire to the purple box.```### Example 2: Find an electrical component**Task:** "Find an electrical component and place it on the workbench."```> look aroundYou see: workbench, chair, battery, glass cup, red wire, notebook.> focus on batteryYou focus on the battery.> move battery to workbenchYou move the battery to the workbench.```## Key Principles- **Exclude destinations** -- Never select the target container or destination as the candidate object.- **Verify if uncertain** -- Use `examine [OBJECT]` for more detail about an object's properties before selecting.- **Task alignment** -- The selection should enable the next action in the task sequence.

Frequently asked questions