Agent skill

Package Add

Install a Unity package from the registry, a Git URL, or a local path.

Apache-2.0Auto-check passedGame Development

Install Package Add

skills CLI

$ npx skills add IvanMurzak/Unity-MCP --skill package-add -a claude-code

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

GitHub CLI

$ gh skill install IvanMurzak/Unity-MCP package-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/package-add .claude/skills/package-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/

Paste into Claude Code

Install the "package-add" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/package-add into .claude/skills/package-add/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "package-add", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/package-add

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add IvanMurzak/Unity-MCP --skill package-add -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install IvanMurzak/Unity-MCP package-add --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/IvanMurzak/Unity-MCP.git skills-src && mkdir -p .agents/skills && cp -r skills-src/Unity-MCP-Plugin/.claude/skills/package-add .agents/skills/package-add && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "package-add" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/package-add into .agents/skills/package-add/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "package-add", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add IvanMurzak/Unity-MCP --skill package-add -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install IvanMurzak/Unity-MCP package-add --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/IvanMurzak/Unity-MCP.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/Unity-MCP-Plugin/.claude/skills/package-add .cursor/skills/package-add && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "package-add" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/package-add into .cursor/skills/package-add/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "package-add", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/IvanMurzak/Unity-MCP.git --path Unity-MCP-Plugin/.claude/skills/package-add

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add IvanMurzak/Unity-MCP --skill package-add -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install IvanMurzak/Unity-MCP package-add --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/IvanMurzak/Unity-MCP.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/Unity-MCP-Plugin/.claude/skills/package-add .gemini/skills/package-add && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "package-add" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/package-add into .gemini/skills/package-add/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "package-add", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install IvanMurzak/Unity-MCP package-add

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add IvanMurzak/Unity-MCP --skill package-add -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/IvanMurzak/Unity-MCP.git skills-src && mkdir -p .github/skills && cp -r skills-src/Unity-MCP-Plugin/.claude/skills/package-add .github/skills/package-add && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "package-add" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/package-add into .github/skills/package-add/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "package-add", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add IvanMurzak/Unity-MCP --skill package-add -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install IvanMurzak/Unity-MCP package-add --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/IvanMurzak/Unity-MCP.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/Unity-MCP-Plugin/.claude/skills/package-add .opencode/skills/package-add && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "package-add" agent skill from https://github.com/IvanMurzak/Unity-MCP/tree/main/Unity-MCP-Plugin/.claude/skills/package-add into .opencode/skills/package-add/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "package-add", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: package-add
GitHub stars: 4.4k
Used in: 1 other repo
Token cost: ~665 tokens
SKILL.md length: 228 words
Files: 1
Skills in repo: 80
Repo updated: Oct 4, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Install a Unity package from the registry, a Git URL, or a local path.

Package resolution
SKILL.md covers packageId formats, Processing model, How to Call and Input, plus 1 more section
Calls npm and npx; reaches github.com
May also trigger a domain reload — the final result is delivered after the reload via the requests requestId

What it does

Package Add is an agent skill from IvanMurzak/Unity-MCP. Install a Unity package from the registry, a Git URL, or a local path. Modifies manifest.json and triggers package resolution; may also trigger a domain reload — the final result is delivered after the reload via the request's requestId. Use 'package-search' / 'package-list' for discovery first.

Its SKILL.md is about 670 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, covering Game development. It works with Git and 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

Package resolution
May also trigger a domain reload — the final result is delivered after the reload via the requests requestId

Example prompts

“s requestId. Use”
“package-list”
“/package-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
Hosts in commands or code, which the agent is likely to contact:
- github.com
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

Package Add loads about 665 tokens when it runs. Until then it costs about 78 tokens; SKILL.md has 228 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~78
When it runs · the whole SKILL.md, loaded when a task matches: ~665

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). 228 words, ~665 tokens.

Download SKILL.mdSave it as .claude/skills/package-add/SKILL.md (or your agent's skills folder).

name: package-add
description: Install a Unity package from the registry, a Git URL, or a local path. Modifies `manifest.json` and triggers package resolution; may also trigger a domain reload — the final result is delivered after the reload via the request's `requestId`. Use 'package-search' / 'package-list' for discovery first.

Package Manager / Add

Install a package from the Unity Package Manager registry, Git URL, or local path. This operation modifies the project's manifest.json and triggers package resolution. Note: Package installation may trigger a domain reload. The result will be sent after the reload completes. Use 'package-search' tool to search for packages and 'package-list' to list installed packages.

`packageId` formats

Plain package ID: com.unity.textmeshpro (installs latest compatible version).
Pinned version: com.unity.textmeshpro@3.0.6.
Git URL: https://github.com/user/repo.git.
Git URL with branch/tag: https://github.com/user/repo.git#v1.0.0.
Local path: file:../MyPackage.

Processing model

Returns Processing immediately with the supplied requestId. Once Client.Add completes, a follow-up result is delivered: success → SchedulePostDomainReloadNotification (delivers after the reload finishes), failure → an immediate error notification with the underlying Unity error message.

How to Call

bash

unity-mcp-cli run-tool package-add --input '{
  "packageId": "string_value"
}'

For complex input (multi-line strings, code), save the JSON to a file and use:
bash
unity-mcp-cli run-tool package-add --input-file args.json
Or pipe via stdin (recommended):
bash
unity-mcp-cli run-tool package-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

Name	Type	Required	Description
`packageId`	`string`	Yes	The package ID to install. Formats: Package ID 'com.unity.textmeshpro' (installs latest compatible version), Package ID with version 'com.unity.textmeshpro@3.0.6', Git URL 'https://github.com/user/repo.git', Git URL with branch/tag 'https://github.com/user/repo.git#v1.0.0', Local path 'file:../MyPackage'.

Input JSON Schema

json

{
  "type": "object",
  "properties": {
    "packageId": {
      "type": "string"
    }
  },
  "required": [
    "packageId"
  ]
}

Output

This tool does not return structured output.

Files

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

Open the folder on GitHubat commit 4c8056f

Used in 1 other repository

We found 10 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in IvanMurzak/Unity-MCP, which our catalogue first saw on October 7, 2026.

majiayu000/claude-skill-registryskills/bash/package-add skills/bash/package-add-punkouter26-posumo+8 more

Compare with similar skills

Package 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.

Package Add compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Package Add this skillIvanMurzak/Unity-MCP	4.4k	1 repos	~665	Automated safety check: Pass	Apache-2.0	4 days ago
Sprite Genaldegad/sprite-gen	2.6k	—	~4.5k	Automated safety check: Pass	Apache-2.0	yesterday
Unreal Blueprint Authoringflopperam/unreal-engine-mcp	1.1k	—	~1.6k	Automated safety check: Pass	None	3 mo ago
MCP DriverRandallLiuXin/GodotMaker	549	1 repos	~1.1k	Automated safety check: Pass	Custom licence	21 days ago
UMG Material MCPwinyunq/UnrealMotionGraphicsMCP	208	—	~913	Automated safety check: Pass	MIT	2 mo ago
Unity PluginTomLeeLive/openclaw-unity-plugin	107	—	~5.1k	Automated safety check: Pass	Apache-2.0	1 mo ago

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Questions about Package Add

What does Package Add do?

Install a Unity package from the registry, a Git URL, or a local path. Package Add is an agent skill from IvanMurzak/Unity-MCP. Install a Unity package from the registry, a Git URL, or a local path.

When should I use Package Add?

Package Add fits situations like: package resolution; may also trigger a domain reload — the final result is delivered after the reload via the requests requestId.

How do I install Package Add in Claude Code?

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

How do I install Package Add in Codex?

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

Can I use Package 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 package-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/package-add, .gemini/skills/package-add, .github/skills/package-add and .opencode/skills/package-add in your project.

What does Package Add need to run?

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

Does Package Add access the network?

SKILL.md names 1 domain. In commands or code: github.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Package 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 Package Add use?

Package 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 Package Add use?

About 665 tokens (SKILL.md is roughly 2.7k 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 Package Add?

Skills that share tags, products or a category with Package Add: Sprite Gen (aldegad/sprite-gen, 2.6k stars), Unreal Blueprint Authoring (flopperam/unreal-engine-mcp, 1.1k stars), MCP Driver (RandallLiuXin/GodotMaker, 549 stars) and UMG Material MCP (winyunq/UnrealMotionGraphicsMCP, 208 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Package 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.

Install Package Add

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Package Manager / Add

packageId formats

Processing model

How to Call

Troubleshooting

Input

Input JSON Schema

Output

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from IvanMurzak/Unity-MCP

Related

Questions about Package Add

`packageId` formats