feat: Update to 0.10.1 of the schema

schema/meta.json

@@ -22,5 +22,8 @@
     "terminal_release": "terminal/release",
     "terminal_wait_for_exit": "terminal/wait_for_exit"
   },
+  "protocolMethods": {
+    "cancel_request": "$/cancel_request"
+  },
   "version": 1
 }

schema/schema.json

@@ -458,6 +458,28 @@
       "x-method": "session/cancel",
       "x-side": "agent"
     },
+    "CancelRequestNotification": {
+      "description": "**UNSTABLE**\n\nThis capability is not part of the spec yet, and may be removed or changed at any point.\n\nNotification to cancel an ongoing request.\n\nSee protocol docs: [Cancellation](https://agentclientprotocol.com/protocol/cancellation)",
+      "properties": {
+        "_meta": {
+          "additionalProperties": true,
+          "description": "The _meta property is reserved by ACP to allow clients and agents to attach additional\nmetadata to their interactions. Implementations MUST NOT make assumptions about values at\nthese keys.\n\nSee protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)",
+          "type": ["object", "null"]
+        },
+        "requestId": {
+          "allOf": [
+            {
+              "$ref": "#/$defs/RequestId"
+            }
+          ],
+          "description": "The ID of the request to cancel."
+        }
+      },
+      "required": ["requestId"],
+      "type": "object",
+      "x-method": "$/cancel_request",
+      "x-side": "protocol"
+    },
     "ClientCapabilities": {
       "description": "Capabilities supported by the client.\n\nAdvertised during initialization to inform the agent about\navailable features and methods.\n\nSee protocol docs: [Client Capabilities](https://agentclientprotocol.com/protocol/initialization#client-capabilities)",
       "properties": {
@@ -1037,6 +1059,12 @@
           "format": "int32",
           "type": "integer"
         },
+        {
+          "const": -32800,
+          "description": "**Request cancelled**: **UNSTABLE**\n\nThis capability is not part of the spec yet, and may be removed or changed at any point.\n\nExecution of the method was aborted either due to a cancellation request from the caller or\nbecause of resource constraints or shutdown.",
+          "format": "int32",
+          "type": "integer"
+        },
         {
           "const": -32000,
           "description": "**Authentication required**: Authentication is required before this operation can be performed.",
@@ -1091,7 +1119,9 @@
       "description": "**UNSTABLE**\n\nThis capability is not part of the spec yet, and may be removed or changed at any point.\n\nRequest parameters for forking an existing session.\n\nCreates a new session based on the context of an existing one, allowing\noperations like generating summaries without affecting the original session's history.\n\nOnly available if the Agent supports the `session.fork` capability.",
       "properties": {
         "_meta": {
-          "description": "The _meta property is reserved by ACP to allow clients and agents to attach additional\nmetadata to their interactions. Implementations MUST NOT make assumptions about values at\nthese keys.\n\nSee protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)"
+          "additionalProperties": true,
+          "description": "The _meta property is reserved by ACP to allow clients and agents to attach additional\nmetadata to their interactions. Implementations MUST NOT make assumptions about values at\nthese keys.\n\nSee protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)",
+          "type": ["object", "null"]
         },
         "sessionId": {
           "allOf": [
@@ -1111,7 +1141,9 @@
       "description": "**UNSTABLE**\n\nThis capability is not part of the spec yet, and may be removed or changed at any point.\n\nResponse from forking an existing session.",
       "properties": {
         "_meta": {
-          "description": "The _meta property is reserved by ACP to allow clients and agents to attach additional\nmetadata to their interactions. Implementations MUST NOT make assumptions about values at\nthese keys.\n\nSee protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)"
+          "additionalProperties": true,
+          "description": "The _meta property is reserved by ACP to allow clients and agents to attach additional\nmetadata to their interactions. Implementations MUST NOT make assumptions about values at\nthese keys.\n\nSee protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)",
+          "type": ["object", "null"]
         },
         "models": {
           "anyOf": [
@@ -2284,7 +2316,9 @@
       "description": "**UNSTABLE**\n\nThis capability is not part of the spec yet, and may be removed or changed at any point.\n\nCapabilities for the `session/fork` method.\n\nBy supplying `{}` it means that the agent supports forking of sessions.",
       "properties": {
         "_meta": {
-          "description": "The _meta property is reserved by ACP to allow clients and agents to attach additional\nmetadata to their interactions. Implementations MUST NOT make assumptions about values at\nthese keys.\n\nSee protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)"
+          "additionalProperties": true,
+          "description": "The _meta property is reserved by ACP to allow clients and agents to attach additional\nmetadata to their interactions. Implementations MUST NOT make assumptions about values at\nthese keys.\n\nSee protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)",
+          "type": ["object", "null"]
         }
       },
       "type": "object"
@@ -3279,6 +3313,20 @@
       },
       "required": ["jsonrpc"],
       "type": "object"
+    },
+    {
+      "anyOf": [
+        {
+          "allOf": [
+            {
+              "$ref": "#/$defs/CancelRequestNotification"
+            }
+          ],
+          "description": "**UNSTABLE**\n\nThis capability is not part of the spec yet, and may be removed or\nchanged at any point.\n\nCancels an ongoing request.\n\nThis is a notification sent by the the side that sent a request to cancel that request.\n\nUpon receiving this notification, the receiver:\n\n1. MUST cancel the corresponding request activity and all nested activities\n2. MAY send any pending notifications.\n3. MUST send one of these responses for the original request:\n  - Valid response with appropriate data (partial results or cancellation marker)\n  - Error response with code `-32800` (Cancelled)\n\nSee protocol docs: [Cancellation](https://agentclientprotocol.com/protocol/cancellation)"
+        }
+      ],
+      "description": "General protocol-level notifications that all sides are expected to\nimplement.\n\nNotifications whose methods start with '$/' are messages which\nare protocol implementation dependent and might not be implementable in all\nclients or agents. For example if the implementation uses a single threaded\nsynchronous programming language then there is little it can do to react to\na `$/cancel_request` notification. If an agent or client receives\nnotifications starting with '$/' it is free to ignore the notification.\n\nNotifications do not expect a response."
     }
-  ]
+  ],
+  "title": "Agent Client Protocol"
 }

scripts/generate.js

@@ -5,7 +5,7 @@ import * as fs from "fs/promises";
 import { dirname } from "path";
 import * as prettier from "prettier";
 
-const CURRENT_SCHEMA_RELEASE = "v0.10.0";
+const CURRENT_SCHEMA_RELEASE = "v0.10.1";
 
 await main();
 

src/schema/types.gen.ts

@@ -287,6 +287,34 @@ export type CancelNotification = {
   sessionId: SessionId;
 };
 
+/**
+ * **UNSTABLE**
+ *
+ * This capability is not part of the spec yet, and may be removed or changed at any point.
+ *
+ * Notification to cancel an ongoing request.
+ *
+ * See protocol docs: [Cancellation](https://agentclientprotocol.com/protocol/cancellation)
+ *
+ * @experimental
+ */
+export type CancelRequestNotification = {
+  /**
+   * The _meta property is reserved by ACP to allow clients and agents to attach additional
+   * metadata to their interactions. Implementations MUST NOT make assumptions about values at
+   * these keys.
+   *
+   * See protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)
+   */
+  _meta?: {
+    [key: string]: unknown;
+  } | null;
+  /**
+   * The ID of the request to cancel.
+   */
+  requestId: RequestId;
+};
+
 /**
  * Capabilities supported by the client.
  *
@@ -647,6 +675,7 @@ export type ErrorCode =
   | -32601
   | -32602
   | -32603
+  | -32800
   | -32000
   | -32002
   | number;
@@ -727,7 +756,9 @@ export type ForkSessionRequest = {
    *
    * See protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)
    */
-  _meta?: unknown;
+  _meta?: {
+    [key: string]: unknown;
+  } | null;
   /**
    * The ID of the session to fork.
    */
@@ -751,7 +782,9 @@ export type ForkSessionResponse = {
    *
    * See protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)
    */
-  _meta?: unknown;
+  _meta?: {
+    [key: string]: unknown;
+  } | null;
   /**
    * **UNSTABLE**
    *
@@ -1848,7 +1881,9 @@ export type SessionForkCapabilities = {
    *
    * See protocol docs: [Extensibility](https://agentclientprotocol.com/protocol/extensibility)
    */
-  _meta?: unknown;
+  _meta?: {
+    [key: string]: unknown;
+  } | null;
 };
 
 /**

src/schema/zod.gen.ts

@@ -82,6 +82,7 @@ export const zErrorCode = z.union([
   z.literal(-32601),
   z.literal(-32602),
   z.literal(-32603),
+  z.literal(-32800),
   z.literal(-32000),
   z.literal(-32002),
   z.number().int(),
@@ -455,6 +456,22 @@ export const zReleaseTerminalResponse = z.object({
  */
 export const zRequestId = z.union([z.null(), z.coerce.bigint(), z.string()]);
 
+/**
+ * **UNSTABLE**
+ *
+ * This capability is not part of the spec yet, and may be removed or changed at any point.
+ *
+ * Notification to cancel an ongoing request.
+ *
+ * See protocol docs: [Cancellation](https://agentclientprotocol.com/protocol/cancellation)
+ *
+ * @experimental
+ */
+export const zCancelRequestNotification = z.object({
+  _meta: z.union([z.record(z.string(), z.unknown()), z.null()]).optional(),
+  requestId: zRequestId,
+});
+
 /**
  * The sender or recipient of messages and data in a conversation.
  */
@@ -547,7 +564,7 @@ export const zRequestPermissionResponse = z.object({
  * @experimental
  */
 export const zSessionForkCapabilities = z.object({
-  _meta: z.unknown().optional(),
+  _meta: z.union([z.record(z.string(), z.unknown()), z.null()]).optional(),
 });
 
 /**
@@ -605,7 +622,7 @@ export const zCreateTerminalRequest = z.object({
  * @experimental
  */
 export const zForkSessionRequest = z.object({
-  _meta: z.unknown().optional(),
+  _meta: z.union([z.record(z.string(), z.unknown()), z.null()]).optional(),
   sessionId: zSessionId,
 });
 
@@ -821,7 +838,7 @@ export const zSessionModelState = z.object({
  * @experimental
  */
 export const zForkSessionResponse = z.object({
-  _meta: z.unknown().optional(),
+  _meta: z.union([z.record(z.string(), z.unknown()), z.null()]).optional(),
   models: z.union([zSessionModelState, z.null()]).optional(),
   modes: z.union([zSessionModeState, z.null()]).optional(),
   sessionId: zSessionId,