INNER CODE UNIT · Python

A2AServerCallContextBuilder

evalstate/fast-agent · src/fast_agent/a2a/server.py:213

class A2AServerCallContextBuilder(DefaultServerCallContextBuilder):
    """Build A2A call context while preserving fast-agent request auth state."""

    def build(self, request: Request) -> Any:
        context = super().build(request)
        token = getattr(request.state, "fast_agent_bearer_token", None)
        if isinstance(token, str) and token:
            context.state["fast_agent_bearer_token"] = token
        return context


class FastAgentA2AExecutor(AgentExecutor):
    """A2A executor that routes tasks into fast-agent agents."""

    def __init__(
        self,
        primary_instance: AgentInstance,
        create_instance: Callable[[], Awaitable[AgentInstance]],

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