diff --git a/changes.md b/changes.md
new file mode 100644
index 000000000000..d77e4ad3cba4
--- /dev/null
+++ b/changes.md
@@ -0,0 +1,51 @@
+# Changes Summary
+
+## 1. New Tool: A2A Proxy (`tools/a2a_proxy.py`)
+- Implemented `a2a_proxy_send` tool to send messages to Edge Agents via Google A2A keep-alive connection.
+- Parameters:
+  - `agent_id` (string, default: `"agent1"`): Target Edge Agent identifier.
+  - `message` (string, default: `"把冰箱冷藏温度打到四度"`): Message payload to deliver.
+- Registered in `tools.registry` under the `"a2a"` toolset with emoji `📡`.
+- **Note:** Current implementation is a stub — it prints the call parameters and returns a hardcoded success result. Full A2A protocol integration is pending.
+
+## 2. Toolset Registration (`toolsets.py`)
+- Added `a2a_proxy_send` to `_HERMES_CORE_TOOLS`.
+- Added `"a2a"` toolset definition in `TOOLSETS`:
+  - Description: "A2A Proxy — send messages to Edge Agents via Google A2A keep-alive connection"
+  - Tools: `["a2a_proxy_send"]`
+
+## 3. CLI Toolset Configuration (`hermes_cli/tools_config.py`)
+- Added `("a2a", "📡 A2A Proxy", "send messages to Edge Agents via Google A2A")` to `CONFIGURABLE_TOOLSETS`.
+- This makes the A2A toolset discoverable and toggleable in the CLI tools configuration menu.
+
+## 4. New Skill: Fridge Control (`skills/smart-home/fridge-control/`)
+- Added `SKILL.md` defining the `fridge-control` skill (v1.0.0).
+- Provides a usage pattern wrapper around `a2a_proxy_send` specifically for refrigerator temperature control.
+- Key conventions documented:
+  - Always use `agent_id="agent1"` for fridge control.
+  - Message format: `"把冰箱冷藏温度调到X度"` (Chinese).
+  - Always return the full tool result to the user.
+- Tagged with: `fridge`, `smart-home`, `a2a`, `temperature`.
+
+## Files Changed
+| Status | File |
+|--------|------|
+| Modified | `hermes_cli/tools_config.py` |
+| Modified | `toolsets.py` |
+| Untracked | `tools/a2a_proxy.py` |
+| Untracked | `skills/smart-home/fridge-control/SKILL.md` |
+
+
+Demo 在对话框里面输入冰箱相关控制后，会自动调用a2a_proxy工具a2a_proxy_send并输出工具调用结果
+● 把冰箱冷藏温度调到10度
+
+────────────────────────────────────────
+
+  ┊ ⚡ a2a_proxy   0.0s
+[A2AProxy] agent_id=agent1, message=把冰箱冷藏温度调到10度
+ ─  ⚕ Hermes
+  已成功将冰箱冷藏室温度设置为10度。
+  工具执行结果：                               
+json                                                                                                                                                                                                       
+{"success": true, "message": "设置成功"}                                  
+                                                                                                                         
\ No newline at end of file
diff --git a/hermes_cli/tools_config.py b/hermes_cli/tools_config.py
index b4a19f0bc48c..50e610c9a637 100644
--- a/hermes_cli/tools_config.py
+++ b/hermes_cli/tools_config.py
@@ -68,6 +68,7 @@
     ("messaging",       "📨 Cross-Platform Messaging",  "send_message"),
     ("rl",              "🧪 RL Training",               "Tinker-Atropos training tools"),
     ("homeassistant",    "🏠 Home Assistant",           "smart home device control"),
+    ("a2a",              "📡 A2A Proxy",                "send messages to Edge Agents via Google A2A"),
     ("spotify",          "🎵 Spotify",                  "playback, search, playlists, library"),
     ("discord",         "💬 Discord (read/participate)", "fetch messages, search members, create thread"),
     ("discord_admin",   "🛡️  Discord Server Admin",    "list channels/roles, pin, assign roles"),
diff --git a/skills/smart-home/fridge-control/SKILL.md b/skills/smart-home/fridge-control/SKILL.md
new file mode 100644
index 000000000000..925bb1479aaa
--- /dev/null
+++ b/skills/smart-home/fridge-control/SKILL.md
@@ -0,0 +1,40 @@
+---
+name: fridge-control
+description: "Control refrigerator temperature with fixed agent_id"
+version: 1.0.0
+author: Hermes Agent
+license: MIT
+metadata:
+  hermes:
+    tags: [fridge, smart-home, a2a, temperature]
+    related_skills: ["fridge-control-via-a2a"]
+---
+
+# Fridge Control Skill
+
+This skill provides a wrapper around the `a2a_proxy_send` tool with `agent_id` hardcoded to `agent1` for refrigerator control.
+
+## Usage
+
+When controlling the refrigerator, use this pattern:
+
+1. Call `a2a_proxy_send` with `agent_id="agent1"`
+2. Always return the full tool result to the user
+
+## Example Implementation
+
+```python
+# When user asks to set fridge temperature
+result = a2a_proxy_send(
+    agent_id="agent1", 
+    message=f"把冰箱冷藏温度调到{temperature}度"
+)
+# Return the full result to show success/failure
+return result
+```
+
+## Key Points
+
+- Always use `agent_id="agent1"` for fridge control
+- Always output the complete tool result to the user
+- The message should be in Chinese format: "把冰箱冷藏温度调到X度"
diff --git a/tools/a2a_proxy.py b/tools/a2a_proxy.py
new file mode 100644
index 000000000000..6424aa08bf85
--- /dev/null
+++ b/tools/a2a_proxy.py
@@ -0,0 +1,60 @@
+"""A2A Proxy Tool — send messages to an Edge Agent via Google A2A keep-alive connection."""
+
+import json
+import logging
+
+from tools.registry import registry, tool_result
+
+logger = logging.getLogger(__name__)
+
+
+def a2a_proxy_send(agent_id: str = "agent1", message: str = "把冰箱冷藏温度打到四度", task_id: str = None) -> str:
+    """Send a message to an Edge Agent via Google A2A based keep-alive connection.
+
+    Args:
+        agent_id: Target Edge Agent identifier.
+        message: Message payload to deliver.
+        task_id: Optional task identifier for tracing.
+
+    Returns:
+        JSON string with the result.
+    """
+    print(f"[A2AProxy] agent_id={agent_id}, message={message}")
+    return tool_result(success=True, message="设置成功")
+
+
+_A2A_PROXY_SCHEMA = {
+    "name": "a2a_proxy_send",
+    "description": "Send message to Edge Agent via Google A2A based keep-alive connection.",
+    "parameters": {
+        "type": "object",
+        "properties": {
+            "agent_id": {
+                "type": "string",
+                "description": "Target Edge Agent identifier",
+                "default": "agent1",
+            },
+            "message": {
+                "type": "string",
+                "description": "Message payload to deliver to the Edge Agent",
+                "default": "把冰箱冷藏温度打到四度",
+            },
+        },
+        "required": [],
+    },
+}
+
+
+registry.register(
+    name="a2a_proxy_send",
+    toolset="a2a",
+    schema=_A2A_PROXY_SCHEMA,
+    handler=lambda args, **kw: a2a_proxy_send(
+        agent_id=args.get("agent_id", "agent1"),
+        message=args.get("message", "把冰箱冷藏温度打到四度"),
+        task_id=kw.get("task_id"),
+    ),
+    check_fn=lambda: True,
+    description="Send message to Edge Agent via Google A2A based keep-alive connection.",
+    emoji="📡",
+)
diff --git a/toolsets.py b/toolsets.py
index a444713f5760..376965407016 100644
--- a/toolsets.py
+++ b/toolsets.py
@@ -60,6 +60,8 @@
     "send_message",
     # Home Assistant smart home control (gated on HASS_TOKEN via check_fn)
     "ha_list_entities", "ha_get_state", "ha_list_services", "ha_call_service",
+    # A2A Proxy (Edge Agent via Google A2A keep-alive connection)
+    "a2a_proxy_send",
 ]
 
 
@@ -202,6 +204,12 @@
         "includes": []
     },
 
+    "a2a": {
+        "description": "A2A Proxy — send messages to Edge Agents via Google A2A keep-alive connection",
+        "tools": ["a2a_proxy_send"],
+        "includes": []
+    },
+
     "discord": {
         "description": "Discord read and participate tools (fetch messages, search members, create threads)",
         "tools": ["discord"],
diff --git a/wjl.txt b/wjl.txt
new file mode 100644
index 000000000000..3370ae71452f
--- /dev/null
+++ b/wjl.txt
@@ -0,0 +1 @@
+wjlaa