- LangflowClient (list/export, x-api-key auth, error mapping) - import_from_langflow: export -> versioned definition -> LFX deploy - POST /api/flows/import, GET /api/flows/langflow/available - scripts/deploy_flow.py CLI - 25 tests green (Langflow faked via dependency override + respx client tests; respx passthrough proven unreliable for LFX traffic)