fix(sdk): handle all AgentEvent variants in stream output

Previously, many Rust AgentEvent variants (like ToolInputDelta,
AgentModeChanged, ConfirmationRequired, etc.) were not handled in
the From<RustAgentEvent> implementations for Node.js and Python SDKs,
causing them to fall through to a catch-all that returned type "unknown".

Now all event variants are explicitly handled and mapped to the
appropriate event type. A new "data" field (JSON-encoded) is used
to carry extra event data that doesn't fit the standard fields.

Also bumps version to 1.9.1 for both Node.js and Python SDKs.

Author: claude

core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "a3s-code-core"
-version = "1.9.0"
+version = "1.9.1"
 edition = "2021"
 authors = ["A3S Lab Team"]
 license = "MIT"

sdk/node/examples/streaming/stream_fix_test.ts

@@ -0,0 +1,66 @@
+#!/usr/bin/env npx tsx
+/**
+ * Stream fix verification test.
+ * Uses kimi model from config and logs ALL event types to verify no "unknown" appears.
+ */
+
+import { Agent, Session } from '../../index.js';
+import * as path from 'path';
+import * as os from 'os';
+
+async function main(): Promise<void> {
+  const configPath = process.env.A3S_CONFIG || path.join(os.homedir(), '.a3s', 'config.hcl');
+  console.log(`Using config: ${configPath}\n`);
+  console.log('='.repeat(80));
+  console.log('Stream Fix Verification Test');
+  console.log('='.repeat(80));
+  console.log();
+
+  const agent = await Agent.create(configPath);
+  const session = agent.session('.');
+
+  console.log('Streaming with prompt: "Say hello in 5 words"\n');
+
+  const stream = await session.stream('Say hello in 5 words');
+
+  const eventTypes = new Map<string, number>();
+  let totalEvents = 0;
+
+  while (true) {
+    const result = await stream.next();
+    if (!result.value || result.done) break;
+
+    const event = result.value;
+    totalEvents++;
+    const count = eventTypes.get(event.type) ?? 0;
+    eventTypes.set(event.type, count + 1);
+
+    // Log all events
+    console.log(`[${totalEvents}] type="${event.type}"` +
+      (event.text ? ` text="${event.text.slice(0, 50)}"` : '') +
+      (event.toolName ? ` toolName="${event.toolName}"` : '') +
+      (event.data ? ` data="${event.data.slice(0, 80)}"` : '') +
+      (event.error ? ` error="${event.error}"` : '') +
+    '');
+  }
+
+  console.log('\n' + '='.repeat(80));
+  console.log('Summary:');
+  console.log(`Total events: ${totalEvents}`);
+  console.log('Event types received:');
+  for (const [type, count] of eventTypes) {
+    console.log(`  ${type}: ${count}`);
+  }
+
+  if (eventTypes.has('unknown')) {
+    console.log('\n❌ FAILED: Still receiving "unknown" event types!');
+    process.exit(1);
+  } else {
+    console.log('\n✅ PASSED: No "unknown" event types detected.');
+  }
+}
+
+main().catch((err: unknown) => {
+  console.error('Test failed:', err);
+  process.exit(1);
+});

sdk/node/index.d.ts

@@ -179,6 +179,8 @@ export interface AgentEvent {
   question?: string
   /** For btw_answer event: the LLM's answer */
   answer?: string
+  /** Extra data for events that don't map to standard fields (JSON-encoded) */
+  data?: string
 }
 export interface ToolResult {
   name: string

sdk/node/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@a3s-lab/code",
-  "version": "1.9.0",
+  "version": "1.9.1",
   "description": "A3S Code - Native AI coding agent library for Node.js",
   "main": "index.js",
   "types": "index.d.ts",
@@ -44,11 +44,11 @@
     "test:loop": "tsx --tsconfig examples/tsconfig.json examples/test_loop_commands.ts"
   },
   "optionalDependencies": {
-    "@a3s-lab/code-darwin-arm64": "1.9.0",
-    "@a3s-lab/code-linux-x64-gnu": "1.9.0",
-    "@a3s-lab/code-linux-x64-musl": "1.9.0",
-    "@a3s-lab/code-linux-arm64-gnu": "1.9.0",
-    "@a3s-lab/code-linux-arm64-musl": "1.9.0",
-    "@a3s-lab/code-win32-x64-msvc": "1.9.0"
+    "@a3s-lab/code-darwin-arm64": "1.9.1",
+    "@a3s-lab/code-linux-x64-gnu": "1.9.1",
+    "@a3s-lab/code-linux-x64-musl": "1.9.1",
+    "@a3s-lab/code-linux-arm64-gnu": "1.9.1",
+    "@a3s-lab/code-linux-arm64-musl": "1.9.1",
+    "@a3s-lab/code-win32-x64-msvc": "1.9.1"
   }
 }