Unity-MCP script-update-or-create

Updates or creates script file with the provided C# code. Does AssetDatabase.Refresh() at the end. Provides compilation error details if the code has syntax errors. Use 'script-read' tool to read existing script files first.

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 "$T/Unity-MCP-Plugin/.claude/skills/script-update-or-create" ~/.claude/skills/ivanmurzak-unity-mcp-script-update-or-create && rm -rf "$T"

manifest: Unity-MCP-Plugin/.claude/skills/script-update-or-create/SKILL.md

source content

Script / Update or Create

How to Call

unity-mcp-cli run-tool script-update-or-create --input '{
  "filePath": "string_value",
  "content": "string_value"
}'

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

unity-mcp-cli run-tool script-update-or-create --input-file args.json

Or pipe via stdin (recommended):

unity-mcp-cli run-tool script-update-or-create --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
`filePath`	`string`	Yes	The path to the file. Sample: "Assets/Scripts/MyScript.cs".
`content`	`string`	Yes	C# code - content of the file.

Input JSON Schema

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

Output

This tool does not return structured output.