Rename Loop Var

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

Refactor for readability without changing behavior. Return only Python code.

def active_count(users):
    c = 0
    for x in users:
        if x["active"]:
            c += 1
    return c

{
  "expected_contains": [
    "for user in users",
    "count = 0"
  ]
}