Unity-MCP package-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.

install

source · Clone the upstream repo

git clone https://github.com/IvanMurzak/Unity-MCP

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/IvanMurzak/Unity-MCP "$T" && mkdir -p ~/.claude/skills && cp -r "$T/Unity-MCP-Plugin/.claude/skills/package-add" ~/.claude/skills/ivanmurzak-unity-mcp-package-add && rm -rf "$T"

manifest: Unity-MCP-Plugin/.claude/skills/package-add/SKILL.md

source content

Package Manager / Add

How to Call

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:

unity-mcp-cli run-tool package-add --input-file args.json

Or pipe via stdin (recommended):

unity-mcp-cli run-tool package-add --input-file - <<'EOF'
{"param": "value"}
EOF

Troubleshooting

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

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

Output

This tool does not return structured output.