How do I install the Scienceworld Tool Validator skill?

Run npx skillmds add zjunlp/scienceworld-tool-validator 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 Tool Validator 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 Tool Validator?

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 Tool Validator free to use?

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

Who published Scienceworld Tool Validator?

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

Scienceworld Tool Validator by zjunlp

Name: Scienceworld Tool Validator
Rating: 4.2 (5 reviews)
Author: zjunlp

Scienceworld Tool Validator

Use when the agent has acquired a tool or instrument and needs to verify it is operational before first use in a critical task step. This skill performs a lightweight pre-use check via "focus on [TOOL] in inventory" and confirms readiness based on the system's response, ensuring the tool is functional before measurement, activation, or connection operations.

zjunlp fa944cb 2 files · 3.2 KB Updated Sep 10, 2026

File contents

Skill: scienceworld-tool-validator

Purpose

Perform a pre-use functionality check on a tool or instrument to confirm it is operational before employing it in a critical ScienceWorld task step such as measurement, activation, or connection.

When to Use

Immediately after acquiring a tool (e.g., pick up thermometer) and before its first use
When switching to a different tool mid-task and needing to confirm readiness
When resuming a task after navigation and needing to re-confirm tool availability

Workflow

Acquire the tool -- Ensure the target tool is in inventory. If not, locate it with look around and retrieve it with pick up [TOOL].
Execute validation -- Run: focus on [TOOL] in inventory.
Confirm readiness -- A successful response ("You focus on the [TOOL].") confirms the tool is operational. No further diagnostic steps are needed unless an error is observed.
Proceed -- Use the validated tool in the task operation (e.g., use thermometer on [TARGET]).

Examples

Example 1: Validating a thermometer before measurement

> pick up thermometer
You pick up the thermometer.

> focus on thermometer in inventory
You focus on the thermometer.

The thermometer is validated. Proceed with measurement:

> use thermometer on unknown substance B
The thermometer measures a temperature of 42 degrees celsius.

Example 2: Validating a scale after teleporting to a new room

> teleport to workshop
You teleport to the workshop.

> pick up scale
You pick up the scale.

> focus on scale in inventory
You focus on the scale.

The scale is validated and ready to weigh objects.

Key Principles

Timing -- Validate immediately after acquisition, before any task-sensitive operation.
Simplicity -- The focus on action is the primary, lightweight validation method. Avoid unnecessary examine or use actions during the check.
State awareness -- Ensure containers are open and items are accessible before attempting to pick up tools. Use teleport to for efficient navigation.

---name: scienceworld-tool-validatordescription: Use when the agent has acquired a tool or instrument and needs to verify it is operational before first use in a critical task step. This skill performs a lightweight pre-use check via "focus on [TOOL] in inventory" and confirms readiness based on the system's response, ensuring the tool is functional before measurement, activation, or connection operations.---# Skill: scienceworld-tool-validator## PurposePerform a pre-use functionality check on a tool or instrument to confirm it is operational before employing it in a critical ScienceWorld task step such as measurement, activation, or connection.## When to Use- Immediately after acquiring a tool (e.g., `pick up thermometer`) and before its first use- When switching to a different tool mid-task and needing to confirm readiness- When resuming a task after navigation and needing to re-confirm tool availability## Workflow1. **Acquire the tool** -- Ensure the target tool is in inventory. If not, locate it with `look around` and retrieve it with `pick up [TOOL]`.2. **Execute validation** -- Run: `focus on [TOOL] in inventory`.3. **Confirm readiness** -- A successful response (`"You focus on the [TOOL]."`) confirms the tool is operational. No further diagnostic steps are needed unless an error is observed.4. **Proceed** -- Use the validated tool in the task operation (e.g., `use thermometer on [TARGET]`).## Examples### Example 1: Validating a thermometer before measurement```> pick up thermometerYou pick up the thermometer.> focus on thermometer in inventoryYou focus on the thermometer.```The thermometer is validated. Proceed with measurement:```> use thermometer on unknown substance BThe thermometer measures a temperature of 42 degrees celsius.```### Example 2: Validating a scale after teleporting to a new room```> teleport to workshopYou teleport to the workshop.> pick up scaleYou pick up the scale.> focus on scale in inventoryYou focus on the scale.```The scale is validated and ready to weigh objects.## Key Principles- **Timing** -- Validate immediately after acquisition, before any task-sensitive operation.- **Simplicity** -- The `focus on` action is the primary, lightweight validation method. Avoid unnecessary `examine` or `use` actions during the check.- **State awareness** -- Ensure containers are open and items are accessible before attempting to pick up tools. Use `teleport to` for efficient navigation.

Frequently asked questions