refactor(core): keep mcp prompts static

packages/core/src/mcp/client.ts

@@ -13,7 +13,6 @@ import {
   ListToolsResultSchema,
   type LoggingMessageNotification,
   LoggingMessageNotificationSchema,
-  PromptListChangedNotificationSchema,
   ResourceListChangedNotificationSchema,
   ToolListChangedNotificationSchema,
   ToolSchema,
@@ -108,8 +107,6 @@ export interface Connection {
   readonly onLog: (callback: (message: LogMessage) => void) => void
   /** Registers a callback fired when the server announces its tool list changed; no-op if unsupported. */
   readonly onToolsChanged: (callback: () => void) => void
-  /** Registers a callback fired when the server announces its prompt list changed; no-op if unsupported. */
-  readonly onPromptsChanged: (callback: () => void) => void
   /** Registers a callback fired when the server announces its resource list changed; no-op if unsupported. */
   readonly onResourcesChanged: (callback: () => void) => void
 }
@@ -273,10 +270,6 @@ export const connect = Effect.fnUntraced(function* (
         if (!client.getServerCapabilities()?.tools?.listChanged) return
         client.setNotificationHandler(ToolListChangedNotificationSchema, async () => callback())
       },
-      onPromptsChanged: (callback) => {
-        if (!client.getServerCapabilities()?.prompts?.listChanged) return
-        client.setNotificationHandler(PromptListChangedNotificationSchema, async () => callback())
-      },
       onResourcesChanged: (callback) => {
         if (!client.getServerCapabilities()?.resources?.listChanged) return
         client.setNotificationHandler(ResourceListChangedNotificationSchema, async () => callback())

packages/core/src/mcp/index.ts

@@ -268,7 +268,6 @@ export const layer = Layer.effect(
           Effect.all(
             [
               events.publish(McpEvent.ToolsChanged, { server: name }),
-              events.publish(McpEvent.PromptsChanged, { server: name }),
               events.publish(McpEvent.ResourcesChanged, { server: name }),
             ],
             { discard: true },
@@ -284,9 +283,6 @@ export const layer = Layer.effect(
           ),
         )
       })
-      connection.onPromptsChanged(() => {
-        fork(events.publish(McpEvent.PromptsChanged, { server: name }).pipe(Effect.ignore))
-      })
       connection.onResourcesChanged(() => {
         fork(events.publish(McpEvent.ResourcesChanged, { server: name }).pipe(Effect.ignore))
       })