修改

cmd/fake-acp-agent/main.go

@@ -7,6 +7,8 @@
 //	FAKE_ACP_FS_READ=path                  prompt 时发起 fs/read_text_file 请求该路径
 //	FAKE_ACP_FS_WRITE=path:content         prompt 时发起 fs/write_text_file
 //	FAKE_ACP_PROMPT_UPDATES=N              每 prompt 发 N 个 update（默认 3）
+//	FAKE_ACP_PERMISSION=toolName           prompt 时发起 session/request_permission
+//	                                       （options: allow_once/reject_once），阻塞等响应后再结束
 package main
 
 import (
@@ -66,14 +68,14 @@ func main() {
 		case "session/new":
 			respond(out, msg.ID, map[string]any{"sessionId": "fake-session-id"})
 		case "session/prompt":
-			handlePrompt(out, msg.ID)
+			handlePrompt(in, out, msg.ID)
 		case "session/cancel":
 			// ignore
 		}
 	}
 }
 
-func handlePrompt(out *bufio.Writer, id json.RawMessage) {
+func handlePrompt(in *bufio.Reader, out *bufio.Writer, id json.RawMessage) {
 	updates := 3
 	if v := os.Getenv("FAKE_ACP_PROMPT_UPDATES"); v != "" {
 		if n, _ := strconv.Atoi(v); n > 0 {
@@ -102,6 +104,10 @@ func handlePrompt(out *bufio.Writer, id json.RawMessage) {
 		}
 	}
 
+	if tool := os.Getenv("FAKE_ACP_PERMISSION"); tool != "" {
+		doRequestPermission(in, out, tool)
+	}
+
 	respond(out, id, map[string]any{"stopReason": "end_turn"})
 
 	if maxStr := os.Getenv("FAKE_ACP_CRASH_AFTER_PROMPTS"); maxStr != "" {
@@ -139,6 +145,43 @@ func doFsWrite(out *bufio.Writer, path, content string) error {
 	return nil
 }
 
+// doRequestPermission 发起 session/request_permission 并阻塞读取 stdin 直到收到
+// 匹配 id 的响应（期间忽略其它消息）。用于端到端验证人工审批/自动放行链路。
+func doRequestPermission(in *bufio.Reader, out *bufio.Writer, tool string) {
+	id := nextServerID.Add(1)
+	idJSON, _ := json.Marshal(id)
+	body := mustJSON(Message{
+		JSONRPC: "2.0", ID: idJSON, Method: "session/request_permission",
+		Params: mustJSON(map[string]any{
+			"sessionId": "fake-session-id",
+			"toolCall":  map[string]any{"name": tool},
+			"options": []map[string]any{
+				{"id": "allow_once", "name": "Allow"},
+				{"id": "reject_once", "name": "Reject"},
+			},
+		}),
+	})
+	_, _ = out.Write(body)
+	_, _ = out.Write([]byte{'\n'})
+	_ = out.Flush()
+
+	// 阻塞等待该 request 的响应（忽略中途其它帧）。
+	want := string(idJSON)
+	for {
+		line, err := in.ReadBytes('\n')
+		if err != nil {
+			return
+		}
+		var m Message
+		if err := json.Unmarshal(line, &m); err != nil {
+			continue
+		}
+		if len(m.ID) > 0 && string(m.ID) == want && (m.Result != nil || m.Error != nil) {
+			return
+		}
+	}
+}
+
 func respond(out *bufio.Writer, id json.RawMessage, result any) {
 	body := mustJSON(Message{JSONRPC: "2.0", ID: id, Result: mustJSON(result)})
 	_, _ = out.Write(body)