insert_at_line

Inserts specified content at a specific line in a file, shifting existing content down. Ideal for targeted edits within code or text files without replacing entire sections. Suitable for precise modifications in a codebase.

Instructions

Inserts the given content at the given line in the file, pushing existing content of the line down. In general, symbolic insert operations like insert_after_symbol or insert_before_symbol should be preferred if you know which symbol you are looking for. However, this can also be useful for small targeted edits of the body of a longer symbol (without replacing the entire body).

Input Schema

Name	Required	Description
`content`	Yes	The content to be inserted.
`line`	Yes	The 0-based index of the line to insert content at.
`relative_path`	Yes	The relative path to the file.

Input Schema (JSON Schema)

{
  "properties": {
    "content": {
      "description": "The content to be inserted.",
      "title": "Content",
      "type": "string"
    },
    "line": {
      "description": "The 0-based index of the line to insert content at.",
      "title": "Line",
      "type": "integer"
    },
    "relative_path": {
      "description": "The relative path to the file.",
      "title": "Relative Path",
      "type": "string"
    }
  },
  "required": [
    "relative_path",
    "line",
    "content"
  ],
  "title": "applyArguments",
  "type": "object"
}

Serena MCP Server

insert_at_line

Instructions

Input Schema

Input Schema (JSON Schema)

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MCP directory API