DOCS
Stream
1 つの POST、1 つの SSE 応答。@sveda-ai/core と sveda-server のイベントは整合。
Stream
1 つの POST、1 つの SSE 応答。@sveda-ai/core と sveda-server のイベントは整合。
イベント型、Accept と Content-Type、クライアントでの tool.call と message.end の処理。
Framing
Each event is an SSE line
data: {json}
followed by a blank line. The stream ends with
data: [DONE].
Client Accept in sveda mode is
application/vnd.sveda.stream+json.
Response
Content-Type
is
text/event-stream.
The runtime sets
x-sveda-protocol-version: 1.0.
POST /sveda/stream
Accept: application/vnd.sveda.stream+json
Content-Type: application/json
x-sveda-embed-token: sveda_embed_…
Content-Type: text/event-stream
x-sveda-protocol-version: 1.0POST /sveda/stream Accept: application/vnd.sveda.stream+json Content-Type: application/json x-sveda-embed-token: sveda_embed_… Content-Type: text/event-stream x-sveda-protocol-version: 1.0
data: {"type":"message.start","chatId":"chat_1"}
data: {"type":"text.delta","delta":"Hello","chatId":"chat_1"}
data: {"type":"message.end","finishReason":"stop","chatId":"chat_1"}
data: [DONE]data: {"type":"message.start","chatId":"chat_1"}
data: {"type":"text.delta","delta":"Hello","chatId":"chat_1"}
data: {"type":"message.end","finishReason":"stop","chatId":"chat_1"}
data: [DONE] Event list
Closed set from
StreamEvent.
Do not invent aliases.
message.start Turn opened. Optional chatId, messageId, timestamp.
text.delta Assistant token. Field delta.
reasoning.delta Reasoning token. Field delta.
tool.call toolCallId, toolName, input, target backend | frontend. Optional confirmation: "required" pauses until toolDecisions.
tool.result toolCallId, toolName, output; optional renderHint, renderData.
tool.progress Optional phase plus tasks[{ id, label, status, detail }].
context.usage usedTokens, maxTokens, percent.
chat.title Generated title for the chat.
max_steps maxSteps, canContinue. Client may continueAfterMaxSteps().
message.end Optional finishReason and usage. Turn closed.
error code and message.
tool.call target
target
is
backend
or
frontend.
Backend tools run in
sveda-server
(builtins and host MCP). Frontend tools run in the browser via
SvedaToolRegistry
—
MCP and tools.
data: {"type":"tool.call","toolCallId":"call_1","toolName":"search_code","target":"backend","input":{"query":"SvedaClient"}}
data: {"type":"tool.call","toolCallId":"call_2","toolName":"get_selection","target":"frontend","input":{}}data: {"type":"tool.call","toolCallId":"call_1","toolName":"search_code","target":"backend","input":{"query":"SvedaClient"}}
data: {"type":"tool.call","toolCallId":"call_2","toolName":"get_selection","target":"frontend","input":{}}
When a tool requires chat confirmation, the same event includes
confirmation: "required"
and the runtime does not execute it until the client sends
toolDecisions
on the next POST. See
tool confirmation.