Add Codex plan mode draft features

packages/server/src/shared/agent-feature-schemas.test.ts

@@ -14,6 +14,7 @@ describe("agent feature schemas", () => {
       id: "fast_mode",
       label: "Fast mode",
       description: "Uses lower latency service tier",
+      tooltip: "Toggle fast mode",
       icon: "bolt",
       value: true,
     });
@@ -31,6 +32,7 @@ describe("agent feature schemas", () => {
       id: "service_tier",
       label: "Service tier",
       description: "Choose a processing tier",
+      tooltip: "Select service tier",
       icon: "gauge",
       value: "flex",
       options: [
@@ -112,6 +114,7 @@ describe("agent feature schemas", () => {
           type: "toggle",
           id: "fast_mode",
           label: "Fast mode",
+          tooltip: "Toggle fast mode",
           value: false,
         },
       ],

packages/server/src/shared/messages.list-commands.test.ts

@@ -27,6 +27,9 @@ describe("list_commands_request schema", () => {
         modeId: "bypassPermissions",
         model: "gpt-5",
         thinkingOptionId: "off",
+        featureValues: {
+          plan_mode: true,
+        },
       },
       requestId: "req-456",
     });
@@ -41,6 +44,9 @@ describe("list_commands_request schema", () => {
       modeId: "bypassPermissions",
       model: "gpt-5",
       thinkingOptionId: "off",
+      featureValues: {
+        plan_mode: true,
+      },
     });
   });
 });

packages/server/src/shared/messages.ts

@@ -82,6 +82,7 @@ export const AgentFeatureToggleSchema = z.object({
   id: z.string(),
   label: z.string(),
   description: z.string().optional(),
+  tooltip: z.string().optional(),
   icon: z.string().optional(),
   value: z.boolean(),
 });
@@ -91,6 +92,7 @@ export const AgentFeatureSelectSchema = z.object({
   id: z.string(),
   label: z.string(),
   description: z.string().optional(),
+  tooltip: z.string().optional(),
   icon: z.string().optional(),
   value: z.string().nullable(),
   options: z.array(AgentSelectOptionSchema),
@@ -315,6 +317,10 @@ const ToolCallDetailPayloadSchema: z.ZodType<ToolCallDetail> = z.discriminatedUn
     text: z.string().optional(),
     icon: z.enum(TOOL_CALL_ICON_NAMES).optional(),
   }),
+  z.object({
+    type: z.literal("plan"),
+    text: z.string(),
+  }),
   z.object({
     type: z.literal("unknown"),
     input: UnknownValueSchema,
@@ -1154,6 +1160,13 @@ const ListCommandsDraftConfigSchema = z.object({
   modeId: z.string().optional(),
   model: z.string().optional(),
   thinkingOptionId: z.string().optional(),
+  featureValues: z.record(z.unknown()).optional(),
+});
+
+export const ListProviderFeaturesRequestMessageSchema = z.object({
+  type: z.literal("list_provider_features_request"),
+  draftConfig: ListCommandsDraftConfigSchema,
+  requestId: z.string(),
 });
 
 export const ListCommandsRequestSchema = z.object({
@@ -1260,6 +1273,7 @@ export const SessionInboundMessageSchema = z.discriminatedUnion("type", [
   CreateAgentRequestMessageSchema,
   ListProviderModelsRequestMessageSchema,
   ListProviderModesRequestMessageSchema,
+  ListProviderFeaturesRequestMessageSchema,
   ListAvailableProvidersRequestMessageSchema,
   ResumeAgentRequestMessageSchema,
   RefreshAgentRequestMessageSchema,
@@ -2179,6 +2193,17 @@ export const ListProviderModesResponseMessageSchema = z.object({
   }),
 });
 
+export const ListProviderFeaturesResponseMessageSchema = z.object({
+  type: z.literal("list_provider_features_response"),
+  payload: z.object({
+    provider: AgentProviderSchema,
+    features: z.array(AgentFeatureSchema).optional(),
+    error: z.string().nullable().optional(),
+    fetchedAt: z.string(),
+    requestId: z.string(),
+  }),
+});
+
 const ProviderAvailabilitySchema = z.object({
   provider: AgentProviderSchema,
   available: z.boolean(),
@@ -2386,6 +2411,7 @@ export const SessionOutboundMessageSchema = z.discriminatedUnion("type", [
   FileDownloadTokenResponseSchema,
   ListProviderModelsResponseMessageSchema,
   ListProviderModesResponseMessageSchema,
+  ListProviderFeaturesResponseMessageSchema,
   ListAvailableProvidersResponseSchema,
   ListCommandsResponseSchema,
   ListTerminalsResponseSchema,
@@ -2462,6 +2488,9 @@ export type ListProviderModelsResponseMessage = z.infer<
 export type ListProviderModesResponseMessage = z.infer<
   typeof ListProviderModesResponseMessageSchema
 >;
+export type ListProviderFeaturesResponseMessage = z.infer<
+  typeof ListProviderFeaturesResponseMessageSchema
+>;
 export type ListAvailableProvidersResponse = z.infer<typeof ListAvailableProvidersResponseSchema>;
 export type ChatCreateResponse = z.infer<typeof ChatCreateResponseSchema>;
 export type ChatListResponse = z.infer<typeof ChatListResponseSchema>;
@@ -2504,6 +2533,9 @@ export type ListProviderModelsRequestMessage = z.infer<
 export type ListProviderModesRequestMessage = z.infer<
   typeof ListProviderModesRequestMessageSchema
 >;
+export type ListProviderFeaturesRequestMessage = z.infer<
+  typeof ListProviderFeaturesRequestMessageSchema
+>;
 export type ListAvailableProvidersRequestMessage = z.infer<
   typeof ListAvailableProvidersRequestMessageSchema
 >;

packages/server/src/shared/tool-call-display.test.ts

@@ -140,4 +140,20 @@ describe("shared tool-call display mapping", () => {
       summary: "npm run test",
     });
   });
+
+  it("labels plan detail rows as Plan", () => {
+    const display = buildToolCallDisplayModel({
+      name: "plan",
+      status: "completed",
+      error: null,
+      detail: {
+        type: "plan",
+        text: "### Login Screen\n- Build layout",
+      },
+    });
+
+    expect(display).toEqual({
+      displayName: "Plan",
+    });
+  });
 });

packages/server/src/shared/tool-call-display.ts

@@ -109,6 +109,10 @@ function buildCanonicalDetailDisplay(input: ToolCallDisplayInput): DetailDisplay
       return {
         summary: input.detail.label,
       };
+    case "plan":
+      return {
+        displayName: "Plan",
+      };
     case "unknown":
       return {};
   }