# Agent task completion

`AgentTaskCompletionJudge` reviews an agent run (often a natural-language summary of what happened) and decides whether the high-level objective was met. It is particularly helpful for multi-step agents where success cannot be inferred from the final response alone.

```python title="Did the agent finish the job?"
from opik.evaluation.metrics import AgentTaskCompletionJudge

metric = AgentTaskCompletionJudge()

payload = """TASK: Extract company name, address, and tax ID from the invoice.
OUTCOME: Agent retrieved company name and address but failed to extract the tax ID.
"""

score = metric.score(output=payload)

print(score.value)  # 0.0–1.0 after normalisation
print(score.reason)
```

## Inputs

| Argument | Type  | Required | Description                                                       |
| -------- | ----- | -------- | ----------------------------------------------------------------- |
| `output` | `str` | **Yes**  | Payload describing the task, evidence, and outcome for the judge. |

## Configuration

| Parameter      | Default      | Notes                                                 |
| -------------- | ------------ | ----------------------------------------------------- |
| `model`        | `gpt-5-nano` | Switch to heavier evaluators for complex workflows.   |
| `temperature`  | `0.0`        | Increase slightly if you want more creative feedback. |
| `track`        | `True`       | Toggle evaluation logging.                            |
| `project_name` | `None`       | Override project for logging.                         |

The evaluator returns an integer between 0 and 10; Opik divides it by 10 so `score.value` falls in the 0.0–1.0 range, while `score.reason` summarises which sub-tasks were completed or missed.

## Related pages

- [Overview](./evaluation-metrics-overview.md)
- [Heuristic metrics](./evaluation-metrics-heuristic-metrics.md)
- [Hallucination](./evaluation-metrics-hallucination.md)
- [LLM Juries](./evaluation-metrics-llm-juries.md)
- [G-Eval](./evaluation-metrics-g-eval.md)
- [Conversation-level GEval Metrics](./evaluation-metrics-g-eval-conversation-metrics.md)
- [Compliance risk](./evaluation-metrics-compliance-risk.md)
- [Prompt uncertainty](./evaluation-metrics-prompt-diagnostics.md)
- [Moderation](./evaluation-metrics-moderation.md)
- [Meaning Match](./evaluation-metrics-meaning-match.md)

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