feat: expand desktop computer-use APIs

.context/docker-test-zgvGyf/xdg-data/Library/Application Support/sandbox-agent/bin/agent_processes/mock-acp

@@ -0,0 +1,111 @@
+#!/usr/bin/env node
+const { createInterface } = require("node:readline");
+
+let nextSession = 0;
+
+function emit(value) {
+  process.stdout.write(JSON.stringify(value) + "\n");
+}
+
+function firstText(prompt) {
+  if (!Array.isArray(prompt)) {
+    return "";
+  }
+
+  for (const block of prompt) {
+    if (block && block.type === "text" && typeof block.text === "string") {
+      return block.text;
+    }
+  }
+
+  return "";
+}
+
+const rl = createInterface({
+  input: process.stdin,
+  crlfDelay: Infinity,
+});
+
+rl.on("line", (line) => {
+  let msg;
+  try {
+    msg = JSON.parse(line);
+  } catch {
+    return;
+  }
+
+  const hasMethod = typeof msg?.method === "string";
+  const hasId = Object.prototype.hasOwnProperty.call(msg, "id");
+  const method = hasMethod ? msg.method : undefined;
+
+  if (method === "session/prompt") {
+    const sessionId = typeof msg?.params?.sessionId === "string" ? msg.params.sessionId : "";
+    const text = firstText(msg?.params?.prompt);
+    emit({
+      jsonrpc: "2.0",
+      method: "session/update",
+      params: {
+        sessionId,
+        update: {
+          sessionUpdate: "agent_message_chunk",
+          content: {
+            type: "text",
+            text: "mock: " + text,
+          },
+        },
+      },
+    });
+  }
+
+  if (!hasMethod || !hasId) {
+    return;
+  }
+
+  if (method === "initialize") {
+    emit({
+      jsonrpc: "2.0",
+      id: msg.id,
+      result: {
+        protocolVersion: 1,
+        capabilities: {},
+        serverInfo: {
+          name: "mock-acp-agent",
+          version: "0.0.1",
+        },
+      },
+    });
+    return;
+  }
+
+  if (method === "session/new") {
+    nextSession += 1;
+    emit({
+      jsonrpc: "2.0",
+      id: msg.id,
+      result: {
+        sessionId: "mock-session-" + nextSession,
+      },
+    });
+    return;
+  }
+
+  if (method === "session/prompt") {
+    emit({
+      jsonrpc: "2.0",
+      id: msg.id,
+      result: {
+        stopReason: "end_turn",
+      },
+    });
+    return;
+  }
+
+  emit({
+    jsonrpc: "2.0",
+    id: msg.id,
+    result: {
+      ok: true,
+      echoedMethod: method,
+    },
+  });
+});

.context/docker-test-zgvGyf/xdg-data/sandbox-agent/bin/agent_processes/mock-acp

@@ -0,0 +1,111 @@
+#!/usr/bin/env node
+const { createInterface } = require("node:readline");
+
+let nextSession = 0;
+
+function emit(value) {
+  process.stdout.write(JSON.stringify(value) + "\n");
+}
+
+function firstText(prompt) {
+  if (!Array.isArray(prompt)) {
+    return "";
+  }
+
+  for (const block of prompt) {
+    if (block && block.type === "text" && typeof block.text === "string") {
+      return block.text;
+    }
+  }
+
+  return "";
+}
+
+const rl = createInterface({
+  input: process.stdin,
+  crlfDelay: Infinity,
+});
+
+rl.on("line", (line) => {
+  let msg;
+  try {
+    msg = JSON.parse(line);
+  } catch {
+    return;
+  }
+
+  const hasMethod = typeof msg?.method === "string";
+  const hasId = Object.prototype.hasOwnProperty.call(msg, "id");
+  const method = hasMethod ? msg.method : undefined;
+
+  if (method === "session/prompt") {
+    const sessionId = typeof msg?.params?.sessionId === "string" ? msg.params.sessionId : "";
+    const text = firstText(msg?.params?.prompt);
+    emit({
+      jsonrpc: "2.0",
+      method: "session/update",
+      params: {
+        sessionId,
+        update: {
+          sessionUpdate: "agent_message_chunk",
+          content: {
+            type: "text",
+            text: "mock: " + text,
+          },
+        },
+      },
+    });
+  }
+
+  if (!hasMethod || !hasId) {
+    return;
+  }
+
+  if (method === "initialize") {
+    emit({
+      jsonrpc: "2.0",
+      id: msg.id,
+      result: {
+        protocolVersion: 1,
+        capabilities: {},
+        serverInfo: {
+          name: "mock-acp-agent",
+          version: "0.0.1",
+        },
+      },
+    });
+    return;
+  }
+
+  if (method === "session/new") {
+    nextSession += 1;
+    emit({
+      jsonrpc: "2.0",
+      id: msg.id,
+      result: {
+        sessionId: "mock-session-" + nextSession,
+      },
+    });
+    return;
+  }
+
+  if (method === "session/prompt") {
+    emit({
+      jsonrpc: "2.0",
+      id: msg.id,
+      result: {
+        stopReason: "end_turn",
+      },
+    });
+    return;
+  }
+
+  emit({
+    jsonrpc: "2.0",
+    id: msg.id,
+    result: {
+      ok: true,
+      echoedMethod: method,
+    },
+  });
+});

.context/docker-test-zgvGyf/xdg-data/sandbox-agent/logs/log-03-08-26

@@ -0,0 +1,4 @@
+ts=2026-03-08T07:57:29.140584296Z level=info target=sandbox_agent::telemetry message="anonymous telemetry is enabled, disable with --no-telemetry"
+ts=2026-03-08T07:57:29.141203296Z level=info target=sandbox_agent::cli message="server listening" addr=0.0.0.0:3000
+ts=2026-03-08T07:57:29.298687421Z level=info target=sandbox_agent::router span=http.request span_path=http.request message=request method=GET uri=/v1/health
+ts=2026-03-08T07:57:29.302092338Z level=info target=sandbox_agent::router span=http.request span_path=http.request status="200 OK" latency_ms=3 method=GET uri=/v1/health

.context/docker-test-zgvGyf/xdg-data/sandbox-agent/telemetry_id

@@ -0,0 +1 @@
+5a1927c6af3d83586f34112f58e0c8d6