You are creating the first canonical entry for Agile.
Act as an expert librarian. Provide a highly accurate entry for "Agile".
Include 1-3 aliases (alternative names or common search terms).
Your response must be in strict JSON format. Escape internal quotes with \.
{
"definition": "...",
"abstract": "...",
"description": "...",
"aliases": ["alias1", "alias2"]
}