1use std::sync::Arc;
2
3use anyhow::{Result, anyhow, bail};
4use assistant_tool::{ActionLog, Tool, ToolResult, ToolSource};
5use context_server::{ContextServerId, types};
6use gpui::{AnyWindowHandle, App, Entity, Task};
7use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
8use project::{Project, context_server_store::ContextServerStore};
9use ui::IconName;
10
11pub struct ContextServerTool {
12 store: Entity<ContextServerStore>,
13 server_id: ContextServerId,
14 tool: types::Tool,
15}
16
17impl ContextServerTool {
18 pub fn new(
19 store: Entity<ContextServerStore>,
20 server_id: ContextServerId,
21 tool: types::Tool,
22 ) -> Self {
23 Self {
24 store,
25 server_id,
26 tool,
27 }
28 }
29}
30
31impl Tool for ContextServerTool {
32 fn name(&self) -> String {
33 self.tool.name.clone()
34 }
35
36 fn description(&self) -> String {
37 self.tool.description.clone().unwrap_or_default()
38 }
39
40 fn icon(&self) -> IconName {
41 IconName::Cog
42 }
43
44 fn source(&self) -> ToolSource {
45 ToolSource::ContextServer {
46 id: self.server_id.clone().0.into(),
47 }
48 }
49
50 fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
51 true
52 }
53
54 fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
55 let mut schema = self.tool.input_schema.clone();
56 assistant_tool::adapt_schema_to_format(&mut schema, format)?;
57 Ok(match schema {
58 serde_json::Value::Null => {
59 serde_json::json!({ "type": "object", "properties": [] })
60 }
61 serde_json::Value::Object(map) if map.is_empty() => {
62 serde_json::json!({ "type": "object", "properties": [] })
63 }
64 _ => schema,
65 })
66 }
67
68 fn ui_text(&self, _input: &serde_json::Value) -> String {
69 format!("Run MCP tool `{}`", self.tool.name)
70 }
71
72 fn run(
73 self: Arc<Self>,
74 input: serde_json::Value,
75 _messages: &[LanguageModelRequestMessage],
76 _project: Entity<Project>,
77 _action_log: Entity<ActionLog>,
78 _window: Option<AnyWindowHandle>,
79 cx: &mut App,
80 ) -> ToolResult {
81 if let Some(server) = self.store.read(cx).get_running_server(&self.server_id) {
82 let tool_name = self.tool.name.clone();
83 let server_clone = server.clone();
84 let input_clone = input.clone();
85
86 cx.spawn(async move |_cx| {
87 let Some(protocol) = server_clone.client() else {
88 bail!("Context server not initialized");
89 };
90
91 let arguments = if let serde_json::Value::Object(map) = input_clone {
92 Some(map.into_iter().collect())
93 } else {
94 None
95 };
96
97 log::trace!(
98 "Running tool: {} with arguments: {:?}",
99 tool_name,
100 arguments
101 );
102 let response = protocol.run_tool(tool_name, arguments).await?;
103
104 let mut result = String::new();
105 for content in response.content {
106 match content {
107 types::ToolResponseContent::Text { text } => {
108 result.push_str(&text);
109 }
110 types::ToolResponseContent::Image { .. } => {
111 log::warn!("Ignoring image content from tool response");
112 }
113 types::ToolResponseContent::Resource { .. } => {
114 log::warn!("Ignoring resource content from tool response");
115 }
116 }
117 }
118 Ok(result)
119 })
120 .into()
121 } else {
122 Task::ready(Err(anyhow!("Context server not found"))).into()
123 }
124 }
125}