rohitg00/ai-engineering-from-scratch · error · RuntimeError

expected input_required result

Error message

expected input_required result

What it means

Error "expected input_required result" thrown in rohitg00/ai-engineering-from-scratch.

Source

Thrown at certifications/claude/lessons/11-mcp-server-design-and-integration/code/main.py:551

        params: dict[str, Any] | None = None,
        *,
        server: MCPServer | None = None,
    ) -> dict[str, Any]:
        _request, result = self.send(method, params, server=server)
        return result

    def call_with_mrtr(
        self,
        params: dict[str, Any],
        *,
        first_server: MCPServer,
        retry_server: MCPServer,
    ) -> dict[str, Any]:
        first_request, input_required = self.send(
            "tools/call", params, server=first_server
        )
        if input_required.get("resultType") != "input_required":
            raise RuntimeError("expected input_required result")
        responses = self.fulfill(input_required["inputRequests"])
        retry_params = {
            **params,
            "inputResponses": responses,
            "requestState": input_required["requestState"],
        }
        retry_request, complete = self.send(
            "tools/call", retry_params, server=retry_server
        )
        return {
            "initialRequestId": first_request["id"],
            "retryRequestId": retry_request["id"],
            "inputRequired": input_required,
            "complete": complete,
        }

    @staticmethod
    def fulfill(input_requests: dict[str, Any]) -> dict[str, Any]:

View on GitHub (pinned to 39ea8a1c6d)

When it happens

Trigger: Thrown at certifications/claude/lessons/11-mcp-server-design-and-integration/code/main.py:551 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of rohitg00/ai-engineering-from-scratch@39ea8a1c6d (2026-08-26). Data as JSON: /api/errors/0af9ec5430924b3c. Report an issue: GitHub.