zjunlp/alfworld-object-storer

Skill: Object Storer

When to Use

Trigger this skill when:

1. The agent is holding the target object (optionally cleaned/heated/cooled as required)
2. A suitable storage receptacle has been identified
3. The agent needs to execute the final placement step

Core Workflow

1. Validate Prerequisites

• Confirm the agent is holding {object_name} (check inventory)
• Confirm the agent is at the location of {target_receptacle}
• If not at the receptacle, navigate there first: go to {target_receptacle}

2. Check Receptacle State

Evaluate the receptacle before placing:

| Receptacle State | Action | |-----------------|--------| | Open and empty/suitable | Proceed with put | | Closed (drawer, cabinet, safe) | open {target_receptacle} first, then put | | Unsuitable (wrong type, full) | Abort and search for alternative receptacle |

3. Execute Storage

• Run: put {object_name} in/on {target_receptacle}
• Check the observation for confirmation

4. Verify Placement

• A successful placement updates the receptacle contents in the observation
• If the observation confirms the object is now in/on the receptacle, storage is complete

Example

Task: "Clean the knife and put it in a drawer."

> go to drawer 1
The drawer 1 is closed.
> open drawer 1
You open the drawer 1. The drawer 1 is open. In it, you see nothing.
> put knife 1 in/on drawer 1
You put the knife 1 in/on the drawer 1.

Result: knife 1 is now stored in drawer 1. Task complete.

Example 2 — Open surface:

> go to bed 1
On the bed 1, you see a pillow 1.
> put cellphone 2 in/on bed 1
You put the cellphone 2 in/on the bed 1.

Error Handling

• "Nothing happened": The agent may not be holding the object, or the receptacle name is incorrect. Verify with inventory and re-check the receptacle identifier.
• Receptacle unsuitable: If the receptacle is not appropriate for the object, search for an alternative using the object-locator skill.
• Agent not at receptacle: Navigate to the receptacle with go to {target_receptacle} before attempting put.