alfworld-receptacle-preparer
This skill verifies and prepares a target receptacle for receiving an object. It is triggered before placing an item into a receptacle (e.g., a garbage can) to ensure the receptacle is accessible and suitable. The skill involves navigating to the receptacle, observing its state (e.g., open/closed, occupied), and performing any necessary preparatory actions like opening it, resulting in a ready-to-use target location.
Best use case
alfworld-receptacle-preparer is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
This skill verifies and prepares a target receptacle for receiving an object. It is triggered before placing an item into a receptacle (e.g., a garbage can) to ensure the receptacle is accessible and suitable. The skill involves navigating to the receptacle, observing its state (e.g., open/closed, occupied), and performing any necessary preparatory actions like opening it, resulting in a ready-to-use target location.
Teams using alfworld-receptacle-preparer should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/alfworld-receptacle-preparer/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How alfworld-receptacle-preparer Compares
| Feature / Agent | alfworld-receptacle-preparer | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
This skill verifies and prepares a target receptacle for receiving an object. It is triggered before placing an item into a receptacle (e.g., a garbage can) to ensure the receptacle is accessible and suitable. The skill involves navigating to the receptacle, observing its state (e.g., open/closed, occupied), and performing any necessary preparatory actions like opening it, resulting in a ready-to-use target location.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# Instructions
**Trigger:** This skill is invoked when the agent's goal requires placing an object into a target receptacle (e.g., "put X in/on Y").
## Core Procedure
1. **Navigate:** Use `go to {target_receptacle}` to move to the target receptacle's location.
2. **Observe:** Upon arrival, carefully read the environment's observation. It will describe the receptacle's state and any contents.
3. **Analyze & Prepare:** Based on the observation, determine if the receptacle is ready.
* **Ready State:** The receptacle is described as present and accessible (e.g., "On the garbagecan 1, you see a cd 1."). No further action is needed. Proceed to place the object.
* **Blocked/Closed State:** If the receptacle is closed, latched, or obstructed, use the appropriate action (`open {recep}`, `toggle {obj} {recep}`) to prepare it.
* **Invalid Target:** If the observation indicates the receptacle does not exist or cannot be interacted with ("Nothing happened"), you must abort this skill and re-plan your task strategy.
4. **Confirm:** After any preparatory action, observe the environment's feedback to confirm the receptacle is now ready.
## Key Principles
* **Efficiency:** This skill is a preparatory step. Do not spend turns searching for the object to be placed here. That is a separate "search" skill.
* **Context:** The observation text is your only source of truth about the receptacle's state. Interpret it literally.
* **Idempotency:** If the receptacle is already ready, this skill completes immediately with no action required beyond observation.
## Example from Trajectory
**Goal Context:** "find two pen and put them in garbagecan."
**Skill Execution:**
1. Thought: "I'll check the garbage can first to ensure it's open and ready to receive items."
2. Action: `go to garbagecan 1`
3. Observation: "On the garbagecan 1, you see a cd 1."
4. Analysis: The garbage can is present and accessible (a CD inside does not block new items). It is **ready**.
5. Outcome: Skill completes. The agent proceeds to `put pen 3 in/on garbagecan 1`.Related Skills
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This skill uses an appliance to change the state of an object (e.g., cooling, heating, cleaning). It should be triggered when the task requires altering an object's temperature or cleanliness using a specific device (like cooling with a fridge or heating with a microwave). The skill requires the object, the target state, and the appliance as inputs, and executes the corresponding modifier action (e.g., 'cool X with Y').
alfworld-location-navigator
Moves the agent to a specified receptacle or object location within the Alfworld environment. Use this skill when the agent needs to physically approach a target to inspect or interact with it, such as when checking an object's state or preparing for pickup. The skill takes a target location name as input and executes the 'go to' action, resulting in the agent being positioned at the destination for subsequent operations.
alfworld-appliance-navigator
This skill navigates the agent to a target appliance (like a microwave, stove, or fridge) needed for a task. It should be triggered when the agent has an object that requires processing (heating, cooling, cleaning) and needs to move to the appropriate station. The skill identifies the appliance from the environment and executes the movement action.
alfworld-object-locator
This skill scans the current environment observation to identify the presence and location of a target object needed for a task. It should be triggered when the agent's goal requires an object that is not currently in the agent's inventory, and the observation does not explicitly state where the object is. The skill analyzes the textual observation to find receptacles that likely contain the target, based on common sense or domain knowledge (e.g., a 'dishsponge' might be on a 'cart'), and outputs the identified target receptacle location for navigation.
alfworld-object-picker
Picks up a specified object from a given receptacle. Use this skill when the agent has located a required object and needs to acquire it for later use, such as taking an item from a surface or container. The skill requires the object and source receptacle as inputs, executing a 'take' action to transfer the object into the agent's inventory, enabling further manipulation like placement or usage.
alfworld-object-disposer
This skill disposes of an object by placing it into a disposal receptacle like a garbage can. It should be triggered when the task requires discarding an object (e.g., 'put it in garbagecan') and the agent is at the disposal location with the object in hand. The skill executes the 'put' action to place the object in/on the target receptacle, completing the disposal subtask.
alfworld-object-state-inspector
Checks the current state or contents of a specified object or receptacle. Trigger this skill when the agent needs to determine if an object is present, missing, or in a certain condition before proceeding with a task, such as verifying if a holder is empty or if an item is available. It typically follows navigation and involves observing the environment's feedback, providing crucial information for decision-making in the task flow.
alfworld-open-receptacle
This skill opens a closed receptacle to access its contents. It should be triggered when an agent needs to interact with items inside a closed container (e.g., fridge, microwave, drawer). The skill takes a receptacle identifier as input, performs the open action, and outputs the observation of the interior, enabling subsequent item retrieval or placement.
alfworld-object-cooler
This skill cools a held object using an appropriate cooling appliance, such as a fridge. It should be triggered when the task requires reducing the temperature of an object (e.g., a hot pot). The skill assumes the agent is holding the object and is near the cooling receptacle; it performs the 'cool' action to achieve the desired state change, preparing the object for subsequent steps like placement or serving.
alfworld-object-storer
This skill places an object into a selected storage receptacle after confirming its suitability. It should be triggered when the agent has identified an appropriate storage location and is ready to complete the storage task. The skill takes the object and target receptacle as inputs and results in the object being stored.
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