agent2: Add now, grep, and web search tools (#35974)

Release Notes:

- N/A

---------

Co-authored-by: Bennet Bo Fenner <bennetbo@gmx.de>
Co-authored-by: Antonio Scandurra <me@as-cii.com>

Cargo.lock

@@ -191,6 +191,7 @@ dependencies = [
  "anyhow",
  "assistant_tool",
  "assistant_tools",
+ "chrono",
  "client",
  "clock",
  "cloud_llm_client",
@@ -227,10 +228,13 @@ dependencies = [
  "tempfile",
  "terminal",
  "theme",
+ "tree-sitter-rust",
  "ui",
+ "unindent",
  "util",
  "uuid",
  "watch",
+ "web_search",
  "which 6.0.3",
  "workspace-hack",
  "worktree",

crates/agent2/Cargo.toml

@@ -20,6 +20,7 @@ agent_settings.workspace = true
 anyhow.workspace = true
 assistant_tool.workspace = true
 assistant_tools.workspace = true
+chrono.workspace = true
 cloud_llm_client.workspace = true
 collections.workspace = true
 fs.workspace = true
@@ -49,6 +50,7 @@ ui.workspace = true
 util.workspace = true
 uuid.workspace = true
 watch.workspace = true
+web_search.workspace = true
 which.workspace = true
 workspace-hack.workspace = true
 
@@ -71,5 +73,7 @@ settings = { workspace = true, "features" = ["test-support"] }
 tempfile.workspace = true
 terminal = { workspace = true, "features" = ["test-support"] }
 theme = { workspace = true, "features" = ["test-support"] }
+tree-sitter-rust.workspace = true
+unindent = { workspace = true }
 worktree = { workspace = true, "features" = ["test-support"] }
 zlog.workspace = true

crates/agent2/src/agent.rs

@@ -1,7 +1,8 @@
 use crate::{AgentResponseEvent, Thread, templates::Templates};
 use crate::{
-    CopyPathTool, CreateDirectoryTool, EditFileTool, FindPathTool, ListDirectoryTool, MovePathTool,
+    CopyPathTool, CreateDirectoryTool, EditFileTool, FindPathTool, GrepTool, ListDirectoryTool,
-    OpenTool, ReadFileTool, TerminalTool, ThinkingTool, ToolCallAuthorization,
+    MovePathTool, NowTool, OpenTool, ReadFileTool, TerminalTool, ThinkingTool,
+    ToolCallAuthorization, WebSearchTool,
 };
 use acp_thread::ModelSelector;
 use agent_client_protocol as acp;
@@ -424,9 +425,13 @@ impl acp_thread::AgentConnection for NativeAgentConnection {
                         thread.add_tool(OpenTool::new(project.clone()));
                         thread.add_tool(ThinkingTool);
                         thread.add_tool(FindPathTool::new(project.clone()));
+                        thread.add_tool(GrepTool::new(project.clone()));
                         thread.add_tool(ReadFileTool::new(project.clone(), action_log));
                         thread.add_tool(EditFileTool::new(cx.entity()));
+                        thread.add_tool(NowTool);
                         thread.add_tool(TerminalTool::new(project.clone(), cx));
+                        // TODO: Needs to be conditional based on zed model or not
+                        thread.add_tool(WebSearchTool);
                         thread
                     });
 

crates/agent2/src/tools.rs

@@ -3,21 +3,27 @@ mod create_directory_tool;
 mod delete_path_tool;
 mod edit_file_tool;
 mod find_path_tool;
+mod grep_tool;
 mod list_directory_tool;
 mod move_path_tool;
+mod now_tool;
 mod open_tool;
 mod read_file_tool;
 mod terminal_tool;
 mod thinking_tool;
+mod web_search_tool;
 
 pub use copy_path_tool::*;
 pub use create_directory_tool::*;
 pub use delete_path_tool::*;
 pub use edit_file_tool::*;
 pub use find_path_tool::*;
+pub use grep_tool::*;
 pub use list_directory_tool::*;
 pub use move_path_tool::*;
+pub use now_tool::*;
 pub use open_tool::*;
 pub use read_file_tool::*;
 pub use terminal_tool::*;
 pub use thinking_tool::*;
+pub use web_search_tool::*;

crates/agent2/src/tools/now_tool.rs

@@ -0,0 +1,66 @@
+use std::sync::Arc;
+
+use agent_client_protocol as acp;
+use anyhow::Result;
+use chrono::{Local, Utc};
+use gpui::{App, SharedString, Task};
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+
+use crate::{AgentTool, ToolCallEventStream};
+
+#[derive(Debug, Serialize, Deserialize, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum Timezone {
+    /// Use UTC for the datetime.
+    Utc,
+    /// Use local time for the datetime.
+    Local,
+}
+
+/// Returns the current datetime in RFC 3339 format.
+/// Only use this tool when the user specifically asks for it or the current task would benefit from knowing the current datetime.
+#[derive(Debug, Serialize, Deserialize, JsonSchema)]
+pub struct NowToolInput {
+    /// The timezone to use for the datetime.
+    timezone: Timezone,
+}
+
+pub struct NowTool;
+
+impl AgentTool for NowTool {
+    type Input = NowToolInput;
+    type Output = String;
+
+    fn name(&self) -> SharedString {
+        "now".into()
+    }
+
+    fn kind(&self) -> acp::ToolKind {
+        acp::ToolKind::Other
+    }
+
+    fn initial_title(&self, _input: Result<Self::Input, serde_json::Value>) -> SharedString {
+        "Get current time".into()
+    }
+
+    fn run(
+        self: Arc<Self>,
+        input: Self::Input,
+        event_stream: ToolCallEventStream,
+        _cx: &mut App,
+    ) -> Task<Result<String>> {
+        let now = match input.timezone {
+            Timezone::Utc => Utc::now().to_rfc3339(),
+            Timezone::Local => Local::now().to_rfc3339(),
+        };
+        let content = format!("The current datetime is {now}.");
+
+        event_stream.update_fields(acp::ToolCallUpdateFields {
+            content: Some(vec![content.clone().into()]),
+            ..Default::default()
+        });
+
+        Task::ready(Ok(content))
+    }
+}

crates/agent2/src/tools/web_search_tool.rs

@@ -0,0 +1,105 @@
+use std::sync::Arc;
+
+use crate::{AgentTool, ToolCallEventStream};
+use agent_client_protocol as acp;
+use anyhow::{Result, anyhow};
+use cloud_llm_client::WebSearchResponse;
+use gpui::{App, AppContext, Task};
+use language_model::LanguageModelToolResultContent;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+use ui::prelude::*;
+use web_search::WebSearchRegistry;
+
+/// Search the web for information using your query.
+/// Use this when you need real-time information, facts, or data that might not be in your training. \
+/// Results will include snippets and links from relevant web pages.
+#[derive(Debug, Serialize, Deserialize, JsonSchema)]
+pub struct WebSearchToolInput {
+    /// The search term or question to query on the web.
+    query: String,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(transparent)]
+pub struct WebSearchToolOutput(WebSearchResponse);
+
+impl From<WebSearchToolOutput> for LanguageModelToolResultContent {
+    fn from(value: WebSearchToolOutput) -> Self {
+        serde_json::to_string(&value.0)
+            .expect("Failed to serialize WebSearchResponse")
+            .into()
+    }
+}
+
+pub struct WebSearchTool;
+
+impl AgentTool for WebSearchTool {
+    type Input = WebSearchToolInput;
+    type Output = WebSearchToolOutput;
+
+    fn name(&self) -> SharedString {
+        "web_search".into()
+    }
+
+    fn kind(&self) -> acp::ToolKind {
+        acp::ToolKind::Fetch
+    }
+
+    fn initial_title(&self, _input: Result<Self::Input, serde_json::Value>) -> SharedString {
+        "Searching the Web".into()
+    }
+
+    fn run(
+        self: Arc<Self>,
+        input: Self::Input,
+        event_stream: ToolCallEventStream,
+        cx: &mut App,
+    ) -> Task<Result<Self::Output>> {
+        let Some(provider) = WebSearchRegistry::read_global(cx).active_provider() else {
+            return Task::ready(Err(anyhow!("Web search is not available.")));
+        };
+
+        let search_task = provider.search(input.query, cx);
+        cx.background_spawn(async move {
+            let response = match search_task.await {
+                Ok(response) => response,
+                Err(err) => {
+                    event_stream.update_fields(acp::ToolCallUpdateFields {
+                        title: Some("Web Search Failed".to_string()),
+                        ..Default::default()
+                    });
+                    return Err(err);
+                }
+            };
+
+            let result_text = if response.results.len() == 1 {
+                "1 result".to_string()
+            } else {
+                format!("{} results", response.results.len())
+            };
+            event_stream.update_fields(acp::ToolCallUpdateFields {
+                title: Some(format!("Searched the web: {result_text}")),
+                content: Some(
+                    response
+                        .results
+                        .iter()
+                        .map(|result| acp::ToolCallContent::Content {
+                            content: acp::ContentBlock::ResourceLink(acp::ResourceLink {
+                                name: result.title.clone(),
+                                uri: result.url.clone(),
+                                title: Some(result.title.clone()),
+                                description: Some(result.text.clone()),
+                                mime_type: None,
+                                annotations: None,
+                                size: None,
+                            }),
+                        })
+                        .collect(),
+                ),
+                ..Default::default()
+            });
+            Ok(WebSearchToolOutput(response))
+        })
+    }
+}

crates/cloud_llm_client/src/cloud_llm_client.rs

@@ -263,12 +263,12 @@ pub struct WebSearchBody {
     pub query: String,
 }
 
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct WebSearchResponse {
     pub results: Vec<WebSearchResult>,
 }
 
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct WebSearchResult {
     pub title: String,
     pub url: String,