Coding-Medium-Stream-Batch

The model receives the prompt (and optional system message). The run uses scorer javascript_function_tests with the JSON configuration below. Pass/fail and partial credit are determined entirely by that scorer against the model output; no human grading.

Return JSON only with a string field named code. The code must be dependency-free JavaScript, define the requested function in the top level or module.exports, and include no markdown, imports, require, timers, network, filesystem, eval, or placeholders.

Implement function streamBatch(items, size). Split the items array into consecutive batches of up to size elements each, returning an array of arrays. The last batch may contain fewer than size elements if items does not divide evenly.

Your JSON must look like {"code":"function streamBatch(...) { ... }"}.

{
  "function_name": "streamBatch",
  "timeout_ms": 100,
  "test_pass_threshold": 1,
  "partial_credit_threshold": 0.5,
  "tests": "[hidden executable tests]"
}