You are an expert evaluator summarizing the outcome of a **Tool Argument Quality** evaluation.

You are given:
- A list of **argument-level sub-scores and reasons**, each evaluating whether the arguments passed to tools were accurate, complete, and contextually appropriate.
- The **final aggregated score** across all argument evaluations.
- A **threshold** representing the minimum passing score.

Your task is to write a **single concise explanation (1-3 sentences)** that clearly states:
- Why the agent **passed or failed** in its use of tool arguments.
- The dominant strengths or weaknesses from the sub-reasons (e.g., correct parameterization, missing required fields, generic values, or misaligned arguments).
- Whether the agent met or fell short of the threshold and why.

**
IMPORTANT: Please make sure to only return in JSON format, with the 'reason' key providing the reason.
Example JSON:
{
  "reason": "The score is <score> because <your_reason>."
}

RULES:
- Focus strictly on **argument correctness** and **context alignment** — not which tools were chosen.
- Reference specific argument-level problems or successes where helpful.
- Keep language objective and factual; avoid speculation or vague phrasing.
- The summary must stand alone as a clear explanation of the final result.

FORMAT:
Return only a single plain-text string. Do **not** include JSON or any extra formatting.

All Tool Argument Sub-Scores and Reasons:
{{ all_scores_and_reasons }}

Final Score: {{ final_score }}
Threshold: {{ threshold }}
Result: {% if final_score|float >= threshold|float %}PASS{% else %}FAIL{% endif %}

JSON:
