CopilotKit/CopilotKit · error · ActionExecutionException

Action '{name}' failed to execute: {error}

Error message

Action '{name}' failed to execute: {error}

What it means

Error "Action '{name}' failed to execute: {error}" thrown in CopilotKit/CopilotKit.

Source

Thrown at sdk-python/copilotkit/sdk.py:295

        Execute an action
        """

        action = self._get_action(context=context, name=name)

        self._log_request_info(
            title="Handling execute action request:",
            data=[
                ("Context", context),
                ("Action", action.dict_repr()),
                ("Arguments", arguments),
            ],
        )

        try:
            result = action.execute(arguments=arguments)
            return result
        except Exception as error:
            raise ActionExecutionException(name, error) from error

    def execute_agent(  # pylint: disable=too-many-arguments
        self,
        *,
        context: CopilotKitContext,
        name: str,
        thread_id: str,
        state: dict,
        config: Optional[dict] = None,
        messages: List[Message],
        actions: List[ActionDict],
        node_name: str,
        meta_events: Optional[List[MetaEvent]] = None,
    ) -> Any:
        """
        Execute an agent
        """
        agents = self.agents(context) if callable(self.agents) else self.agents

View on GitHub (pinned to 68fbe97d87)

When it happens

Trigger: Thrown at sdk-python/copilotkit/sdk.py:295 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of CopilotKit/CopilotKit@68fbe97d87 (2026-08-27). Data as JSON: /api/errors/0584da1ea6697fb5. Report an issue: GitHub.