feature(ampcode): Enhances ampcode schema with new message types and fields

Adds support for system, user, assistant, and result message types to the AMP schema, along with associated fields like subtype, session_id, tools, and duration metrics. Updates the schema validation and adds corresponding test cases. Also improves the command-line argument handling in the agent management package to accommodate the new message types and streamlined permission flags.

The changes enhance the schema's flexibility for different interaction patterns and provide better tracking of agent operations.

resources/agent-schemas/artifacts/json-schema/amp.json

@@ -9,6 +9,10 @@
         "type": {
           "type": "string",
           "enum": [
+            "system",
+            "user",
+            "assistant",
+            "result",
             "message",
             "tool_call",
             "tool_result",
@@ -27,6 +31,45 @@
         },
         "error": {
           "type": "string"
+        },
+        "subtype": {
+          "type": "string"
+        },
+        "cwd": {
+          "type": "string"
+        },
+        "session_id": {
+          "type": "string"
+        },
+        "tools": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "mcp_servers": {
+          "type": "array",
+          "items": {
+            "type": "object"
+          }
+        },
+        "message": {
+          "type": "object"
+        },
+        "parent_tool_use_id": {
+          "type": "string"
+        },
+        "duration_ms": {
+          "type": "number"
+        },
+        "is_error": {
+          "type": "boolean"
+        },
+        "num_turns": {
+          "type": "number"
+        },
+        "result": {
+          "type": "string"
         }
       },
       "required": [

resources/agent-schemas/src/amp.ts

@@ -204,12 +204,27 @@ function createFallbackSchema(): NormalizedSchema {
       properties: {
         type: {
           type: "string",
-          enum: ["message", "tool_call", "tool_result", "error", "done"],
+          enum: ["system", "user", "assistant", "result", "message", "tool_call", "tool_result", "error", "done"],
         },
+        // Common fields
         id: { type: "string" },
         content: { type: "string" },
         tool_call: { $ref: "#/definitions/ToolCall" },
         error: { type: "string" },
+        // System message fields
+        subtype: { type: "string" },
+        cwd: { type: "string" },
+        session_id: { type: "string" },
+        tools: { type: "array", items: { type: "string" } },
+        mcp_servers: { type: "array", items: { type: "object" } },
+        // User/Assistant message fields
+        message: { type: "object" },
+        parent_tool_use_id: { type: "string" },
+        // Result fields
+        duration_ms: { type: "number" },
+        is_error: { type: "boolean" },
+        num_turns: { type: "number" },
+        result: { type: "string" },
       },
       required: ["type"],
     },