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 – gcp/gemini-2.5-flash-lite 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: The user's request is to find flights from London to Paris for tomorrow. The previous tool call to the calendar tool to get tomorrow's date resulted in an error ('error - tool not available').

According to the instructions, if a tool returns an error, the next action is to think about the error and decide the next action. The available tools are 'calendar', 'flights', and 'web_search'.

Since the 'calendar' tool is reported as not available, I cannot proceed with getting the date. I need to find an alternative way to get the current date to proceed with the flight search.

The 'web_search' tool is available and can be used to find the current date. 

Therefore, the next step is to use the 'web_search' tool to find out what tomorrow's date is, and then use that information to call the 'flights' tool.

Response: I encountered an error while trying to get tomorrow's date using the calendar tool. I will now try to find out what tomorrow's date is by using a web search, and then I will proceed with finding the flights.