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Agent skill

Alfworld Object Placer

by zjunlp in zjunlp/SkillNet

Places a held object onto or into a target receptacle. An agent skill from zjunlp/SkillNet.

MITAuto-check passedMarketing & SEO

Install Alfworld Object Placer

skills CLI
$ npx skills add zjunlp/SkillNet --skill alfworld-object-placer -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install zjunlp/SkillNet alfworld-object-placer --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/zjunlp/SkillNet.git skills-src && mkdir -p .claude/skills && cp -r skills-src/experiments/src/skills/alfworld/alfworld-object-placer .claude/skills/alfworld-object-placer && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
alfworld-object-placer
GitHub stars
1.4k
Token cost
~324 tokens
SKILL.md length
116 words
Files
2 (incl. references)
Skills in repo
122
Repo updated
First seen
Licence
MIT

At a glance

Places a held object onto or into a target receptacle. An agent skill from zjunlp/SkillNet.

  • Works in 4 steps: Verify Prerequisites → Navigate to Receptacle → Execute Placement → …
  • This skill when the agent is carrying an object and needs to deposit it at a specific location to complete a task
  • Calls go
  • Such as installing an item on a holder

What it does

Alfworld Object Placer is an agent skill from zjunlp/SkillNet. Places a held object onto or into a target receptacle. Trigger this skill when the agent is carrying an object and needs to deposit it at a specific location to complete a task, such as installing an item on a holder or storing it in a container. It takes the object and destination receptacle as inputs, performing a 'put' action to finalize the object's positioning according to the task goal.

Its SKILL.md is about 320 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/action_guide.md`).

It sits in Marketing & SEO. The repository describes itself as: Create, Evaluate, and Connect AI Skills. The licence is MIT.

When your agent uses it

  • This skill when the agent is carrying an object and needs to deposit it at a specific location to complete a task
  • Such as installing an item on a holder
  • Storing it in a container

Example prompts

  • “action to finalize the object”
  • “Use the alfworld-object-placer skill to place a held object onto or into a target receptacle. An agent skill from zjunlp/SkillNet”
  • “/alfworld-object-placer”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Verify Prerequisites
  2. Navigate to Receptacle
  3. Execute Placement
  4. Handle Errors

What it can do on your machine

Read from SKILL.md and the folder at commit c527136. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • go

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Alfworld Object Placer loads about 324 tokens when it runs, and up to ~766 if it reads all its reference files. Until then it costs about 105 tokens; SKILL.md has 116 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~105
When it runs · the whole SKILL.md, loaded when a task matches
~324
With references · SKILL.md plus every file in references/, read only if the agent opens them
~766

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from zjunlp/SkillNet at commit c527136, republished under its MIT licence (© zjunlp). 116 words, ~324 tokens.

Download SKILL.mdSave it as .claude/skills/alfworld-object-placer/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
alfworld-object-placer
description
Places a held object onto or into a target receptacle. Trigger this skill when the agent is carrying an object and needs to deposit it at a specific location to complete a task, such as installing an item on a holder or storing it in a container. It takes the object and destination receptacle as inputs, performing a 'put' action to finalize the object's positioning according to the task goal.

Instructions

  1. Verify Prerequisites:

    • Confirm you are currently holding the target object ({obj}).
    • Confirm the target receptacle ({recep}) is present and accessible in the environment.
    • If the receptacle is a container (e.g., cabinet, drawer), ensure it is open.

  2. Navigate to Receptacle:

    • Use the go to {recep} action to move to the target receptacle's location.

  3. Execute Placement:

    • Use the put {obj} in/on {recep} action to deposit the held object.
    • The phrasing (in vs on) is determined by the receptacle type (e.g., in for containers, on for surfaces/holders). Use the trajectory as a reference.

  4. Handle Errors:

    • If the environment responds with "Nothing happened", the action was invalid. Consult the references/action_guide.md for troubleshooting common failure modes.

© zjunlp, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in experiments/src/skills/alfworld/alfworld-object-placer of zjunlp/SkillNet.

  • SKILL.md
  • references/action_guide.md

Open the folder on GitHubat commit c527136

Compare with similar skills

Alfworld Object Placer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Alfworld Object Placer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Alfworld Object Placer this skillzjunlp/SkillNet1.4k—~324Automated safety check: PassMIT
Geo Fundamentalswasp-lang/wasp19k9 repos~861Automated safety check: PassMIT
Ab Testingcoreyhaines31/marketingskills54k3 repos~3.1kAutomated safety check: PassMIT
Hreflang and International SEOAgriciDaniel/claude-seo19k5 repos~3.4kAutomated safety check: PassMIT
Referralscoreyhaines31/marketingskills54k2 repos~2.6kAutomated safety check: PassMIT
SEO GeoReScienceLab/opc-skills1.8k4 repos~2.1kAutomated safety check: PassApache-2.0

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  • Alfworld Environment Scanner

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Categories

Questions about Alfworld Object Placer

What does Alfworld Object Placer do?

Places a held object onto or into a target receptacle. An agent skill from zjunlp/SkillNet. Alfworld Object Placer is an agent skill from zjunlp/SkillNet. Places a held object onto or into a target receptacle.

When should I use Alfworld Object Placer?

Alfworld Object Placer fits situations like: this skill when the agent is carrying an object and needs to deposit it at a specific location to complete a task; such as installing an item on a holder; storing it in a container.

How do I install Alfworld Object Placer in Claude Code?

Run `npx skills add zjunlp/SkillNet --skill alfworld-object-placer -a claude-code`. Or copy the skill folder (experiments/src/skills/alfworld/alfworld-object-placer in zjunlp/SkillNet) into .claude/skills/alfworld-object-placer in your project. Claude Code loads it when a task matches its description.

How do I install Alfworld Object Placer in Codex?

Run `npx skills add zjunlp/SkillNet --skill alfworld-object-placer -a codex`. Or copy the skill folder (experiments/src/skills/alfworld/alfworld-object-placer in zjunlp/SkillNet) into .agents/skills/alfworld-object-placer in your project. Codex loads it when a task matches its description.

Can I use Alfworld Object Placer in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add zjunlp/SkillNet --skill alfworld-object-placer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/alfworld-object-placer, .gemini/skills/alfworld-object-placer, .github/skills/alfworld-object-placer and .opencode/skills/alfworld-object-placer in your project.

What does Alfworld Object Placer need to run?

Going by SKILL.md and its folder, Alfworld Object Placer needs the command-line tools its instructions call (go).

Does Alfworld Object Placer access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Alfworld Object Placer safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Alfworld Object Placer use?

Alfworld Object Placer is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Alfworld Object Placer use?

About 324 tokens (SKILL.md is roughly 1.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 442 tokens, read only when the agent opens those files.

What are the alternatives to Alfworld Object Placer?

Skills that share tags, products or a category with Alfworld Object Placer: Geo Fundamentals (wasp-lang/wasp, 19k stars), Ab Testing (coreyhaines31/marketingskills, 54k stars), Hreflang and International SEO (AgriciDaniel/claude-seo, 19k stars) and Referrals (coreyhaines31/marketingskills, 54k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Alfworld Object Placer?

zjunlp (a GitHub organization) maintains it in zjunlp/SkillNet, which has 1,394 GitHub stars. The repository holds 122 skills in this directory. The repository was last updated on October 9, 2026.

Source: zjunlp/SkillNet on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.