MeghaOS Docs

Parameters

Name	Type	Required	Description
`input_path`	string	yes	Absolute path to the dataset.
`output_path`	string	yes	Absolute path to save the transformed dataset.
`new_column_name`	string	yes	Name of the new column to create.
`expression`	string	yes	Pandas eval() compatible expression (e.g., 'price * quantity', 'age > 18'). Column names must match exactly.
`sheet_name`	string	—	For Excel files only: specific sheet to analyze. Default is the first sheet.

How to use it

You normally trigger this by describing what you want in chat — the agent selects TRANSFORM_DATA automatically. For example:

Try saying

“use analyst tools to transform …”

In a workflow

As a step in a multi-step workflow DAG:

{
  "id": "s1",
  "agent": "analyst_tools",
  "action": "TRANSFORM_DATA",
  "args": {
    "input_path": "/Users/me/Documents/file.txt",
    "output_path": "/Users/me/Documents/file.txt",
    "new_column_name": "…",
    "expression": "…"
  },
  "depends_on": [],
  "outputs": []
}

Direct call

For scripting, call it directly via POST /execute_tool. Every tool returns { success, message, data }.

curl -X POST http://127.0.0.1:8000/execute_tool \
  -H "Content-Type: application/json" \
  -d '{"tool_name":"TRANSFORM_DATA","args":{"input_path":"/Users/me/Documents/file.txt","output_path":"/Users/me/Documents/file.txt","new_column_name":"…","expression":"…"}}'

Part of the analyst_tools plugin. Browse the full Plugin & Tool Catalog or the relevant feature guide.