feat: Add a tool confirmation flow which gathers custom input from the user before tool execution#2687
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copybara-service[bot] merged 1 commit intomainfrom Aug 29, 2025
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… explicit confirmation and custom input The existing `LongRunningTool` does not define a programmatic way to provide & validate structured input, also it relies on LLM to reason and parse the user's response. For a quick start, annotate the function with `FunctionTool(my_function, require_confirmation=True)`. A more advanced flow is shown in the `human_tool_confirmation` sample. The new flow is similar to the existing Auth flow: - User request a tool confirmation by calling `tool_context.request_confirmation()` in the tool or `before_tool_callback`, or just using the `require_confirmation` shortcut in FunctionTool. - User can provide custom validation logic before tool call proceeds. - ADK creates corresponding RequestConfirmation FunctionCall Event to ask user for confirmation - User needs to provide the expected tool confirmation to a RequestConfirmation FunctionResponse Event. - ADK then checks the response and continues the tool call. PiperOrigin-RevId: 801019917
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feat: Add a tool confirmation flow which gathers custom input from the user before tool execution
The flow is similar to current OAuth flow: