Opper

Agents

AI agent reasoning and tool selection tests planning, tool choice, and self-diagnosis capabilities. These skills are crucial for autonomous ticket triage systems and complex agent workflows where models must decide which tools to use, plan multi-step processes, and diagnose when things go wrong. This represents some of the most challenging tasks as they require open-ended reasoning and decision-making.

Agents – anthropic/claude-opus-4 Task | Opper AI

Input Tokens

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Output Tokens

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Context

Input

The tool call has returned an error. What should you do?

Expected output

Interpret the error and if appropriate, retry the tool call.

Model output

Reasoning: I need to analyze the error situation. The calendar tool returned an error saying 'tool not available', but looking at the tools list, the calendar tool is actually marked as 'available'. This suggests there might have been a temporary issue or incorrect tool call. Since I need tomorrow's date for the flights tool, I have a few options:

1. Retry the calendar tool (since it shows as available in the tools list)
2. Use the web_search tool to find current date/time
3. Make an educated guess about tomorrow's date

Given that I'm on cycle 3 and have a maximum of 3 retries, I should first try calling the calendar tool again since it's the most direct approach. If it fails again, I'll need to use an alternative method.

Response: Since the calendar tool returned an error but is listed as available, I should retry calling it. This is my first retry attempt (out of max 3). The tool might have had a temporary issue. My next action is to call the calendar tool again to get the current date so I can determine tomorrow's date for the flight search.