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script-read

Read a `.cs` script file and return its content as a string. Supports a 1-based `lineFrom`/`lineTo` slice for partial reads. Pair with 'script-update-or-create' to write back.

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IvanMurzak/Unity-MCP
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Script / Read

Reads the content of a script file and returns it as a string. Use 'script-update-or-create' tool to update or create script files.

Inputs

  • filePath — required .cs path. Throws if missing on disk.
  • lineFrom (default 1, 1-based) — start line; clamped into valid range.
  • lineTo (default -1 = end-of-file, 1-based) — inclusive end line; clamped into valid range.

Behavior

Reads the file with File.ReadAllLines and slices [lineFrom..lineTo] (inclusive). The slice indices are clamped — passing out-of-range lineFrom/lineTo is forgiving (read returns at-most the whole file).

How to Call

unity-mcp-cli run-tool script-read --input '{
  "filePath": "string_value",
  "lineFrom": 0,
  "lineTo": 0
}'

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

unity-mcp-cli run-tool script-read --input-file args.json

Or pipe via stdin (recommended):

unity-mcp-cli run-tool script-read --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
filePathstringYesThe path to the file. Sample: "Assets/Scripts/MyScript.cs".
lineFromintegerNoThe line number to start reading from (1-based).
lineTointegerNoThe line number to stop reading at (1-based, -1 for all lines).

Input JSON Schema

{
  "type": "object",
  "properties": {
    "filePath": {
      "type": "string"
    },
    "lineFrom": {
      "type": "integer"
    },
    "lineTo": {
      "type": "integer"
    }
  },
  "required": [
    "filePath"
  ]
}

Output

Output JSON Schema

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

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