fix(model): add agent prompt and visibility fields to the button block element

json-logs/samples/api/views.open.json

@@ -2598,7 +2598,10 @@
             },
             "style": ""
           },
-          "accessibility_label": ""
+          "accessibility_label": "",
+          "agent_prompt": "",
+          "agent_prompt_display": "",
+          "visible_to_user_ids": []
         },
         "dispatch_action": false,
         "hint": {
@@ -3205,7 +3208,10 @@
               },
               "style": ""
             },
-            "accessibility_label": ""
+            "accessibility_label": "",
+            "agent_prompt": "",
+            "agent_prompt_display": "",
+            "visible_to_user_ids": []
           },
           {
             "type": "workflow_button",

json-logs/samples/api/views.publish.json

@@ -2598,7 +2598,10 @@
             },
             "style": ""
           },
-          "accessibility_label": ""
+          "accessibility_label": "",
+          "agent_prompt": "",
+          "agent_prompt_display": "",
+          "visible_to_user_ids": []
         },
         "dispatch_action": false,
         "hint": {
@@ -3205,7 +3208,10 @@
               },
               "style": ""
             },
-            "accessibility_label": ""
+            "accessibility_label": "",
+            "agent_prompt": "",
+            "agent_prompt_display": "",
+            "visible_to_user_ids": []
           },
           {
             "type": "workflow_button",

json-logs/samples/api/views.push.json

@@ -2598,7 +2598,10 @@
             },
             "style": ""
           },
-          "accessibility_label": ""
+          "accessibility_label": "",
+          "agent_prompt": "",
+          "agent_prompt_display": "",
+          "visible_to_user_ids": []
         },
         "dispatch_action": false,
         "hint": {
@@ -3205,7 +3208,10 @@
               },
               "style": ""
             },
-            "accessibility_label": ""
+            "accessibility_label": "",
+            "agent_prompt": "",
+            "agent_prompt_display": "",
+            "visible_to_user_ids": []
           },
           {
             "type": "workflow_button",

json-logs/samples/api/views.update.json

@@ -2598,7 +2598,10 @@
             },
             "style": ""
           },
-          "accessibility_label": ""
+          "accessibility_label": "",
+          "agent_prompt": "",
+          "agent_prompt_display": "",
+          "visible_to_user_ids": []
         },
         "dispatch_action": false,
         "hint": {
@@ -3205,7 +3208,10 @@
               },
               "style": ""
             },
-            "accessibility_label": ""
+            "accessibility_label": "",
+            "agent_prompt": "",
+            "agent_prompt_display": "",
+            "visible_to_user_ids": []
           },
           {
             "type": "workflow_button",

slack-api-model-kotlin-extension/src/main/kotlin/com/slack/api/model/kotlin_extension/block/element/ButtonElementBuilder.kt

@@ -17,6 +17,9 @@ class ButtonElementBuilder : Builder<ButtonElement> {
     private var style: String? = null
     private var confirm: ConfirmationDialogObject? = null
     private var accessibilityLabel: String? = null
+    private var agentPrompt: String? = null
+    private var agentPromptDisplay: String? = null
+    private var visibleToUserIds: List<String>? = null
 
     /**
      * An identifier for this action. You can use this when you receive an interaction payload to identify the source
@@ -103,6 +106,44 @@ class ButtonElementBuilder : Builder<ButtonElement> {
         this.accessibilityLabel = accessibilityLabel
     }
 
+    /**
+     * A prompt sent to Slackbot when the button is clicked, if Slackbot AI is available to the user.
+     * Maximum length for this field is 4000 characters.
+     *
+     * @see <a href="https://docs.slack.dev/reference/block-kit/block-elements/button-element">Button element documentation</a>
+     */
+    fun agentPrompt(agentPrompt: String) {
+        this.agentPrompt = agentPrompt
+    }
+
+    /**
+     * Short text shown instead of the full agent_prompt in the user's Slackbot message.
+     * Requires agent_prompt and defaults to the button's text.
+     *
+     * @see <a href="https://docs.slack.dev/reference/block-kit/block-elements/button-element">Button element documentation</a>
+     */
+    fun agentPromptDisplay(agentPromptDisplay: String) {
+        this.agentPromptDisplay = agentPromptDisplay
+    }
+
+    /**
+     * An array of user IDs for which the button appears. If not provided, the button is visible to all users.
+     *
+     * @see <a href="https://docs.slack.dev/reference/block-kit/block-elements/button-element">Button element documentation</a>
+     */
+    fun visibleToUserIds(visibleToUserIds: List<String>) {
+        this.visibleToUserIds = visibleToUserIds
+    }
+
+    /**
+     * An array of user IDs for which the button appears. If not provided, the button is visible to all users.
+     *
+     * @see <a href="https://docs.slack.dev/reference/block-kit/block-elements/button-element">Button element documentation</a>
+     */
+    fun visibleToUserIds(vararg visibleToUserIds: String) {
+        this.visibleToUserIds = visibleToUserIds.toList()
+    }
+
     override fun build(): ButtonElement {
         return ButtonElement.builder()
             .actionId(actionId)
@@ -112,6 +153,9 @@ class ButtonElementBuilder : Builder<ButtonElement> {
             .style(style)
             .confirm(confirm)
             .accessibilityLabel(accessibilityLabel)
+            .agentPrompt(agentPrompt)
+            .agentPromptDisplay(agentPromptDisplay)
+            .visibleToUserIds(visibleToUserIds)
             .build()
     }
 }

slack-api-model-kotlin-extension/src/test/kotlin/test_locally/block/ActionsBlockTest.kt

@@ -31,6 +31,25 @@ class ActionsBlockTest {
         assertEquals(expected, result)
     }
 
+    @Test
+    fun buttonWithAgentPrompt() {
+        val gson = GsonFactory.createSnakeCase()
+        val blocks = withBlocks {
+            actions {
+                button {
+                    actionId("summarize_incident")
+                    text("Summarize with Slackbot")
+                    agentPrompt("Summarize this incident and suggest next steps.")
+                    agentPromptDisplay("Summarize this incident")
+                    visibleToUserIds("U123456")
+                }
+            }
+        }
+        val result = gson.toJson(blocks)
+        val expected = """[{"type":"actions","elements":[{"type":"button","text":{"type":"plain_text","text":"Summarize with Slackbot"},"action_id":"summarize_incident","agent_prompt":"Summarize this incident and suggest next steps.","agent_prompt_display":"Summarize this incident","visible_to_user_ids":["U123456"]}]}]"""
+        assertEquals(expected, result)
+    }
+
     @Test
     fun `multi-selects`() {
         val gson = GsonFactory.createSnakeCase()

slack-api-model/src/main/java/com/slack/api/model/block/element/ButtonElement.java

@@ -4,6 +4,8 @@
 import com.slack.api.model.block.composition.PlainTextObject;
 import lombok.*;
 
+import java.util.List;
+
 /**
  * https://docs.slack.dev/reference/block-kit/block-elements/button-element
  */
@@ -68,4 +70,21 @@ public class ButtonElement extends BlockElement {
      * Maximum length for this field is 75 characters.
      */
     private String accessibilityLabel;
+
+    /**
+     * A prompt sent to Slackbot when the button is clicked, if Slackbot AI is available to the user.
+     * Maximum length for this field is 4000 characters.
+     */
+    private String agentPrompt;
+
+    /**
+     * Short text shown instead of the full agent_prompt in the user's Slackbot message.
+     * Requires agent_prompt and defaults to the button's text.
+     */
+    private String agentPromptDisplay;
+
+    /**
+     * An array of user IDs for which the button appears. If not provided, the button is visible to all users.
+     */
+    private List<String> visibleToUserIds;
 }

slack-api-model/src/test/java/test_locally/api/model/block/BlockKitTest.java

@@ -1313,6 +1313,35 @@ public void parseContextActionsBlock() {
         assertEquals(Arrays.asList("USLACKBOT", "U0123456789"), iconButton.getVisibleToUserIds());
     }
 
+    @Test
+    public void parseButtonWithAgentPrompt() {
+        String json = "{\n" +
+                "  \"type\": \"actions\",\n" +
+                "  \"elements\": [\n" +
+                "    {\n" +
+                "      \"type\": \"button\",\n" +
+                "      \"text\": {\n" +
+                "        \"type\": \"plain_text\",\n" +
+                "        \"text\": \"Summarize with Slackbot\"\n" +
+                "      },\n" +
+                "      \"action_id\": \"summarize_incident\",\n" +
+                "      \"agent_prompt\": \"Summarize this incident and suggest next steps.\",\n" +
+                "      \"agent_prompt_display\": \"Summarize this incident\",\n" +
+                "      \"visible_to_user_ids\": [\"U123456\"]\n" +
+                "    }\n" +
+                "  ]\n" +
+                "}";
+        ActionsBlock block = GsonFactory.createSnakeCase().fromJson(json, ActionsBlock.class);
+        ButtonElement button = (ButtonElement) block.getElements().get(0);
+        assertEquals("Summarize this incident and suggest next steps.", button.getAgentPrompt());
+        assertEquals("Summarize this incident", button.getAgentPromptDisplay());
+        assertEquals(Arrays.asList("U123456"), button.getVisibleToUserIds());
+        String serialized = GsonFactory.createSnakeCase().toJson(block);
+        assertThat(serialized, containsString("\"agent_prompt\":\"Summarize this incident and suggest next steps.\""));
+        assertThat(serialized, containsString("\"agent_prompt_display\":\"Summarize this incident\""));
+        assertThat(serialized, containsString("\"visible_to_user_ids\":[\"U123456\"]"));
+    }
+
     String richTextSkinTone = "{ \"blocks\": [\n" +
             "  {\n" +
             "    \"type\": \"rich_text\",\n" +