agent: Add websearch tool (#28621)

Staff only for now. We'll work on making this usable for non zed.dev
users later

Release Notes:

- N/A

---------

Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
Co-authored-by: Marshall Bowers <git@maxdeviant.com>

crates/agent/src/active_thread.rs

@@ -5,11 +5,12 @@ use crate::thread::{
     ThreadEvent, ThreadFeedback,
 };
 use crate::thread_store::{RulesLoadingError, ThreadStore};
-use crate::tool_use::{PendingToolUseStatus, ToolUse, ToolUseStatus};
+use crate::tool_use::{PendingToolUseStatus, ToolUse};
 use crate::ui::{AddedContext, AgentNotification, AgentNotificationEvent, ContextPill};
 use crate::{AssistantPanel, OpenActiveThreadAsMarkdown};
 use anyhow::Context as _;
 use assistant_settings::{AssistantSettings, NotifyWhenAgentWaiting};
+use assistant_tool::ToolUseStatus;
 use collections::{HashMap, HashSet};
 use editor::scroll::Autoscroll;
 use editor::{Editor, EditorElement, EditorStyle, MultiBuffer};
@@ -943,8 +944,8 @@ impl ActiveThread {
                         &tool_use.input,
                         self.thread
                             .read(cx)
-                            .tool_result(&tool_use.id)
-                            .map(|result| result.content.clone().into())
+                            .output_for_tool(&tool_use.id)
+                            .map(|output| output.clone().into())
                             .unwrap_or("".into()),
                         cx,
                     );
@@ -2279,12 +2280,15 @@ impl ActiveThread {
         window: &mut Window,
         cx: &mut Context<Self>,
     ) -> impl IntoElement + use<> {
+        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
+            return card.render(&tool_use.status, window, cx);
+        }
+
         let is_open = self
             .expanded_tool_uses
             .get(&tool_use.id)
             .copied()
             .unwrap_or_default();
-
         let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
 
         let fs = self
@@ -2381,6 +2385,7 @@ impl ActiveThread {
                                         open_markdown_link(text, workspace.clone(), window, cx);
                                     }
                                 })
+                                .into_any_element()
                             }),
                         )),
                 ),
@@ -2437,6 +2442,7 @@ impl ActiveThread {
                                             open_markdown_link(text, workspace.clone(), window, cx);
                                         }
                                     })
+                                    .into_any_element()
                                 })),
                         ),
                 ),
@@ -2767,7 +2773,7 @@ impl ActiveThread {
                         )
                     })
             }
-        })
+        }).into_any_element()
     }
 
     fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {

crates/agent/src/thread.rs

@@ -6,7 +6,7 @@ use std::time::Instant;
 
 use anyhow::{Context as _, Result, anyhow};
 use assistant_settings::AssistantSettings;
-use assistant_tool::{ActionLog, Tool, ToolWorkingSet};
+use assistant_tool::{ActionLog, AnyToolCard, Tool, ToolWorkingSet};
 use chrono::{DateTime, Utc};
 use collections::{BTreeMap, HashMap};
 use feature_flags::{self, FeatureFlagAppExt};
@@ -631,6 +631,14 @@ impl Thread {
         self.tool_use.tool_result(id)
     }
 
+    pub fn output_for_tool(&self, id: &LanguageModelToolUseId) -> Option<&Arc<str>> {
+        Some(&self.tool_use.tool_result(id)?.content)
+    }
+
+    pub fn card_for_tool(&self, id: &LanguageModelToolUseId) -> Option<AnyToolCard> {
+        self.tool_use.tool_result_card(id).cloned()
+    }
+
     pub fn message_has_tool_results(&self, message_id: MessageId) -> bool {
         self.tool_use.message_has_tool_results(message_id)
     }
@@ -1426,6 +1434,12 @@ impl Thread {
             )
         };
 
+        // Store the card separately if it exists
+        if let Some(card) = tool_result.card.clone() {
+            self.tool_use
+                .insert_tool_result_card(tool_use_id.clone(), card);
+        }
+
         cx.spawn({
             async move |thread: WeakEntity<Thread>, cx| {
                 let output = tool_result.output.await;

crates/agent/src/tool_use.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
 use anyhow::Result;
-use assistant_tool::{Tool, ToolWorkingSet};
+use assistant_tool::{AnyToolCard, Tool, ToolUseStatus, ToolWorkingSet};
 use collections::HashMap;
 use futures::FutureExt as _;
 use futures::future::Shared;
@@ -27,26 +27,7 @@ pub struct ToolUse {
     pub needs_confirmation: bool,
 }
 
-#[derive(Debug, Clone)]
-pub enum ToolUseStatus {
-    NeedsConfirmation,
-    Pending,
-    Running,
-    Finished(SharedString),
-    Error(SharedString),
-}
-
-impl ToolUseStatus {
-    pub fn text(&self) -> SharedString {
-        match self {
-            ToolUseStatus::NeedsConfirmation => "".into(),
-            ToolUseStatus::Pending => "".into(),
-            ToolUseStatus::Running => "".into(),
-            ToolUseStatus::Finished(out) => out.clone(),
-            ToolUseStatus::Error(out) => out.clone(),
-        }
-    }
-}
+pub const USING_TOOL_MARKER: &str = "<using_tool>";
 
 pub struct ToolUseState {
     tools: Entity<ToolWorkingSet>,
@@ -54,10 +35,9 @@ pub struct ToolUseState {
     tool_uses_by_user_message: HashMap<MessageId, Vec<LanguageModelToolUseId>>,
     tool_results: HashMap<LanguageModelToolUseId, LanguageModelToolResult>,
     pending_tool_uses_by_id: HashMap<LanguageModelToolUseId, PendingToolUse>,
+    tool_result_cards: HashMap<LanguageModelToolUseId, AnyToolCard>,
 }
 
-pub const USING_TOOL_MARKER: &str = "<using_tool>";
-
 impl ToolUseState {
     pub fn new(tools: Entity<ToolWorkingSet>) -> Self {
         Self {
@@ -66,6 +46,7 @@ impl ToolUseState {
             tool_uses_by_user_message: HashMap::default(),
             tool_results: HashMap::default(),
             pending_tool_uses_by_id: HashMap::default(),
+            tool_result_cards: HashMap::default(),
         }
     }
 
@@ -257,6 +238,18 @@ impl ToolUseState {
         self.tool_results.get(tool_use_id)
     }
 
+    pub fn tool_result_card(&self, tool_use_id: &LanguageModelToolUseId) -> Option<&AnyToolCard> {
+        self.tool_result_cards.get(tool_use_id)
+    }
+
+    pub fn insert_tool_result_card(
+        &mut self,
+        tool_use_id: LanguageModelToolUseId,
+        card: AnyToolCard,
+    ) {
+        self.tool_result_cards.insert(tool_use_id, card);
+    }
+
     pub fn request_tool_use(
         &mut self,
         assistant_message_id: MessageId,