Agent skill

Gameobject Component Add

by IvanMurzak in IvanMurzak/Unity-MCP

Add one or more Components to a GameObject in the opened Prefab or active Scene.

Apache-2.0Auto-check passedGame Development

Install Gameobject Component Add

skills CLI
$ npx skills add IvanMurzak/Unity-MCP --skill gameobject-component-add -a claude-code

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

GitHub CLI
$ gh skill install IvanMurzak/Unity-MCP gameobject-component-add --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/IvanMurzak/Unity-MCP.git skills-src && mkdir -p .claude/skills && cp -r skills-src/Unity-MCP-Plugin/.claude/skills/gameobject-component-add .claude/skills/gameobject-component-add && 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
gameobject-component-add
GitHub stars
4.4k
Token cost
~1.4k tokens
SKILL.md length
209 words
Files
1
Skills in repo
80
Repo updated
First seen
Licence
Apache-2.0

At a glance

Add one or more Components to a GameObject in the opened Prefab or active Scene.

  • Game Development work in your project
  • SKILL.md covers Inputs, Behavior, How to Call and Input, plus 1 more section
  • Calls npm and npx

What it does

Gameobject Component Add is an agent skill from IvanMurzak/Unity-MCP. Add one or more Components to a GameObject in the opened Prefab or active Scene. Component types are looked up by full name (with namespace) or by class-name fallback. Use 'gameobject-find' to locate the host GameObject and 'gameobject-component-list-all' to discover valid component type names.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Game Development. It works with Model Context Protocol. The repository describes itself as: AI Skills, MCP Tools, and CLI for Unity Engine. Full AI develop and test loop. Use cli for quick setup. Efficient token usage, advanced tools. Any C method may be turned into a… The licence is Apache-2.0.

When your agent uses it

  • Game Development work in your project

Example prompts

  • “gameobject-find”
  • “gameobject-component-list-all”
  • “/gameobject-component-add”

Requirements

  • Node.js

What it can do on your machine

Read from SKILL.md and the folder at commit 4c8056f. 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:

    • npm
    • npx

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

  • Network

    No URLs in SKILL.md. Its commands use npm and npx, which can reach the network depending on how they are called.

    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

Gameobject Component Add loads about 1.4k tokens when it runs. Until then it costs about 80 tokens; SKILL.md has 209 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~80
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

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 IvanMurzak/Unity-MCP at commit 4c8056f, republished under its Apache-2.0 licence (© IvanMurzak). 209 words, ~1,420 tokens.

Download SKILL.mdSave it as .claude/skills/gameobject-component-add/SKILL.md (or your agent's skills folder).
name
gameobject-component-add
description
Add one or more Components to a GameObject in the opened Prefab or active Scene. Component types are looked up by full name (with namespace) or by class-name fallback. Use 'gameobject-find' to locate the host GameObject and 'gameobject-component-list-all' to discover valid component type names.

GameObject / Component / Add

Add Component to GameObject in opened Prefab or in a Scene. Use 'gameobject-find' tool to find the target GameObject first. Use 'gameobject-component-list-all' tool to find the component type names to add.

Inputs

  • componentNames — list of component type names. Each entry may be a fully-qualified type name (preferred) or a bare class name (resolved via fallback to AllComponentTypes).
  • gameObjectRef — the target GameObject. Required.

Behavior

Per-name errors (unknown type, type not assignable to UnityEngine.Component, add-failed/duplicate) are accumulated in response.Errors / response.Warnings instead of throwing, so a single bad name does not abort the whole batch. Successful additions populate response.AddedComponents with ComponentDataShallow snapshots.

How to Call

bash
unity-mcp-cli run-tool gameobject-component-add --input '{
  "componentNames": "string_value",
  "gameObjectRef": "string_value"
}'

For complex input (multi-line strings, code), save the JSON to a file and use:

bash
unity-mcp-cli run-tool gameobject-component-add --input-file args.json

Or pipe via stdin (recommended):

bash
unity-mcp-cli run-tool gameobject-component-add --input-file - <<'EOF'
{"param": "value"}
EOF
Troubleshooting

If unity-mcp-cli is not found, either install it globally (npm install -g unity-mcp-cli) or use npx unity-mcp-cli instead. Read the /unity-initial-setup skill for detailed installation instructions.

Input

NameTypeRequiredDescription
componentNamesanyYesFull name of the Component. It should include full namespace path and the class name.
gameObjectRefanyYesFind GameObject in opened Prefab or in the active Scene.
Input JSON Schema
json
{
  "type": "object",
  "properties": {
    "componentNames": {
      "$ref": "#/$defs/System.String-1"
    },
    "gameObjectRef": {
      "$ref": "#/$defs/AIGD.GameObjectRef"
    }
  },
  "$defs": {
    "System.String-1": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "System.Type": {
      "type": "string"
    },
    "AIGD.GameObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "type": "integer",
          "description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
        },
        "path": {
          "type": "string",
          "description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
        },
        "name": {
          "type": "string",
          "description": "Name of a GameObject in hierarchy. Priority: 3."
        },
        "assetType": {
          "$ref": "#/$defs/System.Type",
          "description": "Type of the asset."
        },
        "assetPath": {
          "type": "string",
          "description": "Path to the asset within the project. Starts with 'Assets/'"
        },
        "assetGuid": {
          "type": "string",
          "description": "Unique identifier for the asset."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Find GameObject in opened Prefab or in the active Scene."
    }
  },
  "required": [
    "componentNames",
    "gameObjectRef"
  ]
}

Output

Output JSON Schema
json
{
  "type": "object",
  "properties": {
    "result": {
      "$ref": "#/$defs/AIGD.AddComponentResponse"
    }
  },
  "$defs": {
    "System.Collections.Generic.List(AIGD.ComponentDataShallow)": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/AIGD.ComponentDataShallow"
      }
    },
    "AIGD.ComponentDataShallow": {
      "type": "object",
      "properties": {
        "instanceID": {
          "type": "integer"
        },
        "typeName": {
          "type": "string"
        },
        "isEnabled": {
          "type": "string",
          "enum": [
            "False",
            "True",
            "NA"
          ]
        }
      },
      "required": [
        "instanceID",
        "isEnabled"
      ]
    },
    "System.Collections.Generic.List(System.String)": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "AIGD.AddComponentResponse": {
      "type": "object",
      "properties": {
        "AddedComponents": {
          "$ref": "#/$defs/System.Collections.Generic.List(AIGD.ComponentDataShallow)",
          "description": "List of successfully added components."
        },
        "Messages": {
          "$ref": "#/$defs/System.Collections.Generic.List(System.String)",
          "description": "List of success messages for added components."
        },
        "Warnings": {
          "$ref": "#/$defs/System.Collections.Generic.List(System.String)",
          "description": "List of warnings encountered during component addition."
        },
        "Errors": {
          "$ref": "#/$defs/System.Collections.Generic.List(System.String)",
          "description": "List of errors encountered during component addition."
        }
      }
    }
  },
  "required": [
    "result"
  ]
}

© IvanMurzak, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in Unity-MCP-Plugin/.claude/skills/gameobject-component-add of IvanMurzak/Unity-MCP.

Open the folder on GitHubat commit 4c8056f

Compare with similar skills

Gameobject Component Add 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.

Gameobject Component Add compared with similar skills
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Gameobject Component Add this skillIvanMurzak/Unity-MCP4.4k—~1.4kAutomated safety check: PassApache-2.0
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Multi Account Isolationantibrow/anti-detect-browser-skills9321 repos~2.9kAutomated safety check: PassMIT
Blockbench Pluginsjasonjgardner/blockbench-mcp-plugin491—~2.8kAutomated safety check: PassGPL-3.0
Unreal Blueprint Authoringflopperam/unreal-engine-mcp1.1k—~1.6kAutomated safety check: PassNone
Locus Unity BridgeMisaka-Mikoto-Tech/agent-skills275—~4kAutomated safety check: PassMIT

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Questions about Gameobject Component Add

What does Gameobject Component Add do?

Add one or more Components to a GameObject in the opened Prefab or active Scene. Gameobject Component Add is an agent skill from IvanMurzak/Unity-MCP. Add one or more Components to a GameObject in the opened Prefab or active Scene.

When should I use Gameobject Component Add?

Gameobject Component Add fits situations like: game Development work in your project.

How do I install Gameobject Component Add in Claude Code?

Run `npx skills add IvanMurzak/Unity-MCP --skill gameobject-component-add -a claude-code`. Or copy the skill folder (Unity-MCP-Plugin/.claude/skills/gameobject-component-add in IvanMurzak/Unity-MCP) into .claude/skills/gameobject-component-add in your project. Claude Code loads it when a task matches its description.

How do I install Gameobject Component Add in Codex?

Run `npx skills add IvanMurzak/Unity-MCP --skill gameobject-component-add -a codex`. Or copy the skill folder (Unity-MCP-Plugin/.claude/skills/gameobject-component-add in IvanMurzak/Unity-MCP) into .agents/skills/gameobject-component-add in your project. Codex loads it when a task matches its description.

Can I use Gameobject Component Add 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 IvanMurzak/Unity-MCP --skill gameobject-component-add -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gameobject-component-add, .gemini/skills/gameobject-component-add, .github/skills/gameobject-component-add and .opencode/skills/gameobject-component-add in your project.

What does Gameobject Component Add need to run?

Going by SKILL.md and its folder, Gameobject Component Add needs the command-line tools its instructions call (npm and npx). Our summary lists: Node.js.

Does Gameobject Component Add access the network?

SKILL.md contains no URLs. Its commands use npm and npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Gameobject Component Add 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 Gameobject Component Add use?

Gameobject Component Add is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Gameobject Component Add use?

About 1.4k tokens (SKILL.md is roughly 5.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Gameobject Component Add?

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Who maintains Gameobject Component Add?

IvanMurzak (a GitHub user) maintains it in IvanMurzak/Unity-MCP, which has 4,398 GitHub stars. The repository holds 80 skills in this directory. The repository was last updated on October 4, 2026.

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