Stream Symbols

Last updated 2026-10-02

Stream event types, stream errors, SSE helpers, and read-cap constants.

Symbols

Symbol	Signature / contents
`StreamEvent`	`Type`, `TextDelta`, `ReasoningDelta`, `ToolCall`, `Usage`, `FinishReason`, `Err`
`StreamEventType`	`text` / `reasoning` / `tool_call` / `usage` / `done` / `error`
`ToolCallDelta`	`Index`, `ID`, `Name`, `Arguments`, `ThoughtSignature`
`StreamError`	`Provider`, `Code`, `Body`, `Err`; implements `Error()` and `Unwrap()`
`ErrStreamUnsupported`	`error`
`OpenStream`	`func(ctx, client http.Client, url string, headers map[string]string, body map[string]any, label string) (http.Response, error)`
`StreamChat` / `StreamResponses`	`func(resp *http.Response, label string) <-chan StreamEvent`
`ResponsesStreamError`	`func(label, data string) error`
`ScanSSE`	`func(reader *bufio.Reader, handle func(event, data string) bool) error`
`TruncateFrame`	`func(data string) string`
Read caps	`StreamBodyLimit` 64 MiB, `ErrorBodyLimit` 8 KiB, `ErrorFrameLimit` 512 B, `JSONBodyLimit` 64 KiB