generated: '2026-07-21'
method: searched
source: https://docs.copilotkit.ai/
summary: >-
  Cross-cutting runtime semantics for CopilotKit. The frontend talks to the
  Copilot Runtime over GraphQL (@copilotkit/runtime-client-gql); agent<->UI
  interaction is standardized by the AG-UI protocol, a bi-directional,
  event-streaming connection between a user-facing app and any agentic backend.
authentication:
  style: apiKey
  detail: Copilot Cloud public API key on the frontend provider; see authentication/tawkitai-authentication.yml
transport:
  runtime_protocol: GraphQL
  runtime_client: "@copilotkit/runtime-client-gql"
  agent_protocol: AG-UI
  streaming: >-
    AG-UI is bi-directional and event-based (streamed events between the app
    and the agent backend), supporting generative UI, tool calls, human-in-the-loop
    interrupts and reasoning updates.
persistence:
  threads: >-
    Automatic thread and state persistence across sessions and channels
    (managed by Copilot Cloud; retention varies by plan).
idempotency:
  supported: false
  note: No idempotency-key contract is documented for the runtime.
pagination:
  supported: unknown
  note: No cursor/offset pagination contract is documented at the framework level.
versioning:
  scheme: semver
  npm_current: 1.63.1
  note: The @copilotkit npm scope is released together under one semver line.
error_envelope:
  transport: GraphQL errors from the Copilot Runtime.
cross_links:
  authentication: authentication/tawkitai-authentication.yml
  lifecycle: lifecycle/tawkitai-lifecycle.yml
  packages: packages/tawkitai-packages.yml