add chunk overlap

Author: nexxeln

eval/chunkers/ast.ts

@@ -10,6 +10,10 @@ import { chunk } from '../../src'
 /**
  * Chunk a file using AST-aware chunking and return results
  * in a format compatible with the evaluation
+ *
+ * @param filepath - Path to the file
+ * @param code - Source code content
+ * @param maxNws - Maximum NWS characters per chunk (default: 1500)
  */
 export async function chunkFile(
 	filepath: string,