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52 lines
2.6 KiB
Markdown
52 lines
2.6 KiB
Markdown
# AG-UI Package (agent-framework-ag-ui)
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AG-UI protocol integration for building agent UIs with the AG-UI standard.
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## Main Classes
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- **`AgentFrameworkAgent`** - Wraps agents for AG-UI compatibility
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- **`AgentFrameworkWorkflow`** - Wraps native `Workflow` objects, or accepts `workflow_factory(thread_id)` for thread-scoped workflow instances without subclassing
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- **`AGUIChatClient`** - Chat client that speaks AG-UI protocol
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- **`AGUIHttpService`** - HTTP service for AG-UI endpoints
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- **`AGUIEventConverter`** - Converts between Agent Framework and AG-UI events
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- **`add_agent_framework_fastapi_endpoint()`** - Add AG-UI endpoint to FastAPI app (`SupportsAgentRun` or `Workflow`)
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- **`InMemoryAGUIThreadSnapshotStore`** - Memory-only latest AG-UI Thread Snapshot store for local development, demos, and tests
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## Types
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- **`AGUIRequest`** / **`AGUIChatOptions`** - Request types
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- **`AGUIThreadSnapshot`** / **`AGUIThreadSnapshotStore`** - Replayable thread snapshot model and scoped async store protocol
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- **`availableInterrupts` / `resume`** - Optional canonical AG-UI `Interrupt` and `ResumeEntry` protocol data
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- **`AgentState`** / **`RunMetadata`** - State management types
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- **`PredictStateConfig`** - Configuration for state prediction
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## Protocol Notes
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- Outbound custom events are emitted as AG-UI `CUSTOM`.
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- Usage metadata from `Content(type="usage")` is surfaced as `CUSTOM` events with `name="usage"`.
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- Inbound custom event aliases are accepted: `CUSTOM`, `CUSTOM_EVENT`, and `custom_event`.
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- Multimodal user inputs support both legacy (`text`, `binary`) and draft-style (`image`, `audio`, `video`, `document`) shapes.
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- Interrupted runs complete with `RUN_FINISHED.outcome.type == "interrupt"` and canonical `outcome.interrupts`; do not document or add new flows that depend on the legacy top-level `RUN_FINISHED.interrupt` field.
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- `Interrupt` and `ResumeEntry` come from the `ag-ui-protocol` package (`ag_ui.core`), not from an Agent Framework-specific interrupt model.
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- SSE keepalive is endpoint-owned transport behavior configured through
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`add_agent_framework_fastapi_endpoint(keepalive_seconds=...)`. It emits SSE comments only; do not add `PING`,
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`HEARTBEAT`, or `KEEPALIVE` AG-UI events, and do not add runner-level keepalive settings.
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## Usage
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```python
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from agent_framework.ag_ui import add_agent_framework_fastapi_endpoint
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from fastapi import FastAPI
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app = FastAPI()
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add_agent_framework_fastapi_endpoint(app, agent)
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```
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## Import Path
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```python
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from agent_framework.ag_ui import AGUIChatClient, add_agent_framework_fastapi_endpoint
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# or directly:
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from agent_framework_ag_ui import AGUIChatClient
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```
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