# Flow Exception Nodes Stop or redirect graph execution by raising exceptions: **Stop** ends the current run, **Input Value Error** reports invalid socket input, and **Acted As Character** signals that a character turn happened. See [Error Handling](../../core-concepts/error-handling.md). _3 nodes._ | Node | Registry path | | --- | --- | | [Acted As Character](#acted-as-character) | `raise/ActedAsCharacter` | | [Input Value Error](#input-value-error) | `raise/InputValueError` | | [Stop](#stop) | `raise/Stop` | ## Acted As Character `raise/ActedAsCharacter` Raises an ActedAsCharacter exception. This is used to communicate to the main scene loop that the user has performed an action as a specific character. **Inputs** | Input | Type | Description | | --- | --- | --- | | `state` | `any` | The current graph state | | `character_name` | `str` | The name of the character the user acted as | **Outputs** | Output | Type | Description | | --- | --- | --- | | `state` | `any` | The state input, passed through | ## Input Value Error `raise/InputValueError` Raises an InputValueError exception. **Inputs** | Input | Type | Description | | --- | --- | --- | | `state` | `any` | The current state | | `message` | `str` | The message to raise the exception with | | `field` | `str` | The field that caused the error | **Outputs** | Output | Type | Description | | --- | --- | --- | | `state` | `any` | The state input, passed through | **Properties** | Property | Type | Default | Description | | --- | --- | --- | --- | | `message` | `str` | `""` | The message to raise the exception with | | `field` | `str` | `""` | The field that caused the error | ## Stop `raise/Stop` Raises the specified node / scene loop exception to stop execution of the current graph **Inputs** | Input | Type | Description | | --- | --- | --- | | `state` | `any` | The current state | | `exception` | `any` | (optional) The exception to raise | **Outputs** | Output | Type | Description | | --- | --- | --- | | `state` | `any` | The current state | **Properties** | Property | Type | Default | Description | | --- | --- | --- | --- | | `exception` | `str` | `"StopGraphExecution"` | Exception. Choices: `StopGraphExecution`, `StopModule`, `LoopBreak`, `LoopContinue`, `LoopExit`, `ExitScene`, `RestartSceneLoop`, `ResetScene`, `StageExit`. |