refactor: type tau rpc stream events
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@@ -13,6 +13,7 @@ import { splitMediaFromOutput } from "../media/parse.js";
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import { enqueueCommand } from "../process/command-queue.js";
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import type { runCommandWithTimeout } from "../process/exec.js";
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import { runPiRpc } from "../process/tau-rpc.js";
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import type { AgentEvent, AssistantMessage, Message } from "@mariozechner/pi-ai";
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import { applyTemplate, type TemplateContext } from "./templating.js";
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import {
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formatToolAggregate,
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@@ -533,14 +534,10 @@ export async function runCommandReply(
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}
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};
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let lastStreamedAssistant: string | undefined;
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const streamAssistantFinal = (msg?: {
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role?: string;
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content?: unknown | unknown[];
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}) => {
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const streamAssistantFinal = (msg?: AssistantMessage) => {
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if (!onPartialReply || msg?.role !== "assistant") return;
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const content = msg.content;
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const textBlocks = Array.isArray(content)
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? (content as Array<{ type?: string; text?: string }>)
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const textBlocks = Array.isArray(msg.content)
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? (msg.content as Array<{ type?: string; text?: string }>)
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.filter((c) => c?.type === "text" && typeof c.text === "string")
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.map((c) => (c.text ?? "").trim())
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.filter(Boolean)
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@@ -575,19 +572,11 @@ export async function runCommandReply(
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}
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return copy;
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})();
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type RpcStreamEvent = {
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type?: string;
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message?: {
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role?: string;
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content?: unknown;
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toolCallId?: string;
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tool_call_id?: string;
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} & Record<string, unknown>;
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toolName?: string;
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toolCallId?: string;
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args?: unknown;
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[key: string]: unknown;
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};
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type RpcStreamEvent =
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| AgentEvent
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// Tau sometimes emits a bare "message" frame; treat it like message_end for parsing.
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| { type: "message"; message: Message }
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| { type: "message_end"; message: Message };
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const rpcResult = await runPiRpc({
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argv: rpcArgvForRun,
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@@ -625,14 +614,20 @@ export async function runCommandReply(
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}
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if (
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(ev.type === "message" || ev.type === "message_end") &&
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ev.message?.role === "tool_result" &&
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Array.isArray(ev.message.content)
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("message" in ev && ev.message) &&
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(ev.type === "message" || ev.type === "message_end")
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) {
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const toolName = inferToolName(ev.message);
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const toolCallId = ev.message.toolCallId ?? ev.message.tool_call_id;
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const msg = ev.message as Message;
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const role = (msg as any).role;
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const isToolResult = role === "toolResult" || role === "tool_result";
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if (!isToolResult || !Array.isArray(msg.content)) {
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// not a tool result message we care about
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} else {
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const toolName = inferToolName(msg);
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const toolCallId =
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(msg as any).toolCallId ?? (msg as any).tool_call_id;
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const meta =
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inferToolMeta(ev.message) ??
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inferToolMeta(msg) ??
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(toolCallId ? toolMetaById.get(toolCallId) : undefined);
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emitAgentEvent({
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@@ -672,10 +667,11 @@ export async function runCommandReply(
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flushPendingTool,
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TOOL_RESULT_DEBOUNCE_MS,
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);
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}
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}
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if (ev.type === "message_end") {
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streamAssistantFinal(ev.message);
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if (ev.type === "message_end" && "message" in ev && ev.message && ev.message.role === "assistant") {
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streamAssistantFinal(ev.message as AssistantMessage);
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const text = extractRpcAssistantText(line);
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if (text) {
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params.onAgentEvent?.({
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@@ -686,10 +682,10 @@ export async function runCommandReply(
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}
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// Preserve existing partial reply hook when provided.
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if (onPartialReply && ev.message?.role === "assistant") {
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if (onPartialReply && "message" in ev && ev.message?.role === "assistant") {
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// Let the existing logic reuse the already-parsed message.
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try {
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streamAssistantFinal(ev.message);
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streamAssistantFinal(ev.message as AssistantMessage);
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} catch {
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/* ignore */
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}
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