1use crate::{
2 ContextServerRegistry, CopyPathTool, CreateDirectoryTool, DbLanguageModel, DbThread,
3 DeletePathTool, DiagnosticsTool, EditFileTool, FetchTool, FindPathTool, GrepTool,
4 ListDirectoryTool, MovePathTool, NowTool, OpenTool, ProjectSnapshot, ReadFileTool,
5 RestoreFileFromDiskTool, SaveFileTool, StreamingEditFileTool, SubagentTool,
6 SystemPromptTemplate, Template, Templates, TerminalTool, ThinkingTool, ToolPermissionDecision,
7 WebSearchTool, decide_permission_from_settings,
8};
9use acp_thread::{MentionUri, UserMessageId};
10use action_log::ActionLog;
11use feature_flags::{FeatureFlagAppExt as _, SubagentsFeatureFlag};
12
13use agent_client_protocol as acp;
14use agent_settings::{
15 AgentProfileId, AgentProfileSettings, AgentSettings, SUMMARIZE_THREAD_DETAILED_PROMPT,
16 SUMMARIZE_THREAD_PROMPT,
17};
18use anyhow::{Context as _, Result, anyhow};
19use chrono::{DateTime, Utc};
20use client::UserStore;
21use cloud_api_types::Plan;
22use cloud_llm_client::CompletionIntent;
23use collections::{HashMap, HashSet, IndexMap};
24use fs::Fs;
25use futures::stream;
26use futures::{
27 FutureExt,
28 channel::{mpsc, oneshot},
29 future::Shared,
30 stream::FuturesUnordered,
31};
32use gpui::{
33 App, AppContext, AsyncApp, Context, Entity, EventEmitter, SharedString, Task, WeakEntity,
34};
35use language_model::{
36 LanguageModel, LanguageModelCompletionError, LanguageModelCompletionEvent, LanguageModelId,
37 LanguageModelImage, LanguageModelProviderId, LanguageModelRegistry, LanguageModelRequest,
38 LanguageModelRequestMessage, LanguageModelRequestTool, LanguageModelToolResult,
39 LanguageModelToolResultContent, LanguageModelToolSchemaFormat, LanguageModelToolUse,
40 LanguageModelToolUseId, Role, SelectedModel, StopReason, TokenUsage, ZED_CLOUD_PROVIDER_ID,
41};
42use project::Project;
43use prompt_store::ProjectContext;
44use schemars::{JsonSchema, Schema};
45use serde::{Deserialize, Serialize};
46use settings::{LanguageModelSelection, Settings, ToolPermissionMode, update_settings_file};
47use smol::stream::StreamExt;
48use std::{
49 collections::BTreeMap,
50 ops::RangeInclusive,
51 path::Path,
52 rc::Rc,
53 sync::Arc,
54 time::{Duration, Instant},
55};
56use std::{fmt::Write, path::PathBuf};
57use util::{ResultExt, debug_panic, markdown::MarkdownCodeBlock, paths::PathStyle};
58use uuid::Uuid;
59
60const TOOL_CANCELED_MESSAGE: &str = "Tool canceled by user";
61pub const MAX_TOOL_NAME_LENGTH: usize = 64;
62pub const MAX_SUBAGENT_DEPTH: u8 = 4;
63pub const MAX_PARALLEL_SUBAGENTS: usize = 8;
64
65/// Context passed to a subagent thread for lifecycle management
66#[derive(Clone)]
67pub struct SubagentContext {
68 /// ID of the parent thread
69 pub parent_thread_id: acp::SessionId,
70
71 /// ID of the tool call that spawned this subagent
72 pub tool_use_id: LanguageModelToolUseId,
73
74 /// Current depth level (0 = root agent, 1 = first-level subagent, etc.)
75 pub depth: u8,
76
77 /// Prompt to send when subagent completes successfully
78 pub summary_prompt: String,
79
80 /// Prompt to send when context is running low (≤25% remaining)
81 pub context_low_prompt: String,
82}
83
84/// The ID of the user prompt that initiated a request.
85///
86/// This equates to the user physically submitting a message to the model (e.g., by pressing the Enter key).
87#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Serialize, Deserialize)]
88pub struct PromptId(Arc<str>);
89
90impl PromptId {
91 pub fn new() -> Self {
92 Self(Uuid::new_v4().to_string().into())
93 }
94}
95
96impl std::fmt::Display for PromptId {
97 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
98 write!(f, "{}", self.0)
99 }
100}
101
102pub(crate) const MAX_RETRY_ATTEMPTS: u8 = 4;
103pub(crate) const BASE_RETRY_DELAY: Duration = Duration::from_secs(5);
104
105#[derive(Debug, Clone)]
106enum RetryStrategy {
107 ExponentialBackoff {
108 initial_delay: Duration,
109 max_attempts: u8,
110 },
111 Fixed {
112 delay: Duration,
113 max_attempts: u8,
114 },
115}
116
117#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
118pub enum Message {
119 User(UserMessage),
120 Agent(AgentMessage),
121 Resume,
122}
123
124impl Message {
125 pub fn as_agent_message(&self) -> Option<&AgentMessage> {
126 match self {
127 Message::Agent(agent_message) => Some(agent_message),
128 _ => None,
129 }
130 }
131
132 pub fn to_request(&self) -> Vec<LanguageModelRequestMessage> {
133 match self {
134 Message::User(message) => {
135 if message.content.is_empty() {
136 vec![]
137 } else {
138 vec![message.to_request()]
139 }
140 }
141 Message::Agent(message) => message.to_request(),
142 Message::Resume => vec![LanguageModelRequestMessage {
143 role: Role::User,
144 content: vec!["Continue where you left off".into()],
145 cache: false,
146 reasoning_details: None,
147 }],
148 }
149 }
150
151 pub fn to_markdown(&self) -> String {
152 match self {
153 Message::User(message) => message.to_markdown(),
154 Message::Agent(message) => message.to_markdown(),
155 Message::Resume => "[resume]\n".into(),
156 }
157 }
158
159 pub fn role(&self) -> Role {
160 match self {
161 Message::User(_) | Message::Resume => Role::User,
162 Message::Agent(_) => Role::Assistant,
163 }
164 }
165}
166
167#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
168pub struct UserMessage {
169 pub id: UserMessageId,
170 pub content: Vec<UserMessageContent>,
171}
172
173#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
174pub enum UserMessageContent {
175 Text(String),
176 Mention { uri: MentionUri, content: String },
177 Image(LanguageModelImage),
178}
179
180impl UserMessage {
181 pub fn to_markdown(&self) -> String {
182 let mut markdown = String::from("## User\n\n");
183
184 for content in &self.content {
185 match content {
186 UserMessageContent::Text(text) => {
187 markdown.push_str(text);
188 markdown.push('\n');
189 }
190 UserMessageContent::Image(_) => {
191 markdown.push_str("<image />\n");
192 }
193 UserMessageContent::Mention { uri, content } => {
194 if !content.is_empty() {
195 let _ = writeln!(&mut markdown, "{}\n\n{}", uri.as_link(), content);
196 } else {
197 let _ = writeln!(&mut markdown, "{}", uri.as_link());
198 }
199 }
200 }
201 }
202
203 markdown
204 }
205
206 fn to_request(&self) -> LanguageModelRequestMessage {
207 let mut message = LanguageModelRequestMessage {
208 role: Role::User,
209 content: Vec::with_capacity(self.content.len()),
210 cache: false,
211 reasoning_details: None,
212 };
213
214 const OPEN_CONTEXT: &str = "<context>\n\
215 The following items were attached by the user. \
216 They are up-to-date and don't need to be re-read.\n\n";
217
218 const OPEN_FILES_TAG: &str = "<files>";
219 const OPEN_DIRECTORIES_TAG: &str = "<directories>";
220 const OPEN_SYMBOLS_TAG: &str = "<symbols>";
221 const OPEN_SELECTIONS_TAG: &str = "<selections>";
222 const OPEN_THREADS_TAG: &str = "<threads>";
223 const OPEN_FETCH_TAG: &str = "<fetched_urls>";
224 const OPEN_RULES_TAG: &str =
225 "<rules>\nThe user has specified the following rules that should be applied:\n";
226 const OPEN_DIAGNOSTICS_TAG: &str = "<diagnostics>";
227
228 let mut file_context = OPEN_FILES_TAG.to_string();
229 let mut directory_context = OPEN_DIRECTORIES_TAG.to_string();
230 let mut symbol_context = OPEN_SYMBOLS_TAG.to_string();
231 let mut selection_context = OPEN_SELECTIONS_TAG.to_string();
232 let mut thread_context = OPEN_THREADS_TAG.to_string();
233 let mut fetch_context = OPEN_FETCH_TAG.to_string();
234 let mut rules_context = OPEN_RULES_TAG.to_string();
235 let mut diagnostics_context = OPEN_DIAGNOSTICS_TAG.to_string();
236
237 for chunk in &self.content {
238 let chunk = match chunk {
239 UserMessageContent::Text(text) => {
240 language_model::MessageContent::Text(text.clone())
241 }
242 UserMessageContent::Image(value) => {
243 language_model::MessageContent::Image(value.clone())
244 }
245 UserMessageContent::Mention { uri, content } => {
246 match uri {
247 MentionUri::File { abs_path } => {
248 write!(
249 &mut file_context,
250 "\n{}",
251 MarkdownCodeBlock {
252 tag: &codeblock_tag(abs_path, None),
253 text: &content.to_string(),
254 }
255 )
256 .ok();
257 }
258 MentionUri::PastedImage => {
259 debug_panic!("pasted image URI should not be used in mention content")
260 }
261 MentionUri::Directory { .. } => {
262 write!(&mut directory_context, "\n{}\n", content).ok();
263 }
264 MentionUri::Symbol {
265 abs_path: path,
266 line_range,
267 ..
268 } => {
269 write!(
270 &mut symbol_context,
271 "\n{}",
272 MarkdownCodeBlock {
273 tag: &codeblock_tag(path, Some(line_range)),
274 text: content
275 }
276 )
277 .ok();
278 }
279 MentionUri::Selection {
280 abs_path: path,
281 line_range,
282 ..
283 } => {
284 write!(
285 &mut selection_context,
286 "\n{}",
287 MarkdownCodeBlock {
288 tag: &codeblock_tag(
289 path.as_deref().unwrap_or("Untitled".as_ref()),
290 Some(line_range)
291 ),
292 text: content
293 }
294 )
295 .ok();
296 }
297 MentionUri::Thread { .. } => {
298 write!(&mut thread_context, "\n{}\n", content).ok();
299 }
300 MentionUri::TextThread { .. } => {
301 write!(&mut thread_context, "\n{}\n", content).ok();
302 }
303 MentionUri::Rule { .. } => {
304 write!(
305 &mut rules_context,
306 "\n{}",
307 MarkdownCodeBlock {
308 tag: "",
309 text: content
310 }
311 )
312 .ok();
313 }
314 MentionUri::Fetch { url } => {
315 write!(&mut fetch_context, "\nFetch: {}\n\n{}", url, content).ok();
316 }
317 MentionUri::Diagnostics { .. } => {
318 write!(&mut diagnostics_context, "\n{}\n", content).ok();
319 }
320 MentionUri::TerminalSelection { .. } => {
321 write!(
322 &mut selection_context,
323 "\n{}",
324 MarkdownCodeBlock {
325 tag: "console",
326 text: content
327 }
328 )
329 .ok();
330 }
331 }
332
333 language_model::MessageContent::Text(uri.as_link().to_string())
334 }
335 };
336
337 message.content.push(chunk);
338 }
339
340 let len_before_context = message.content.len();
341
342 if file_context.len() > OPEN_FILES_TAG.len() {
343 file_context.push_str("</files>\n");
344 message
345 .content
346 .push(language_model::MessageContent::Text(file_context));
347 }
348
349 if directory_context.len() > OPEN_DIRECTORIES_TAG.len() {
350 directory_context.push_str("</directories>\n");
351 message
352 .content
353 .push(language_model::MessageContent::Text(directory_context));
354 }
355
356 if symbol_context.len() > OPEN_SYMBOLS_TAG.len() {
357 symbol_context.push_str("</symbols>\n");
358 message
359 .content
360 .push(language_model::MessageContent::Text(symbol_context));
361 }
362
363 if selection_context.len() > OPEN_SELECTIONS_TAG.len() {
364 selection_context.push_str("</selections>\n");
365 message
366 .content
367 .push(language_model::MessageContent::Text(selection_context));
368 }
369
370 if thread_context.len() > OPEN_THREADS_TAG.len() {
371 thread_context.push_str("</threads>\n");
372 message
373 .content
374 .push(language_model::MessageContent::Text(thread_context));
375 }
376
377 if fetch_context.len() > OPEN_FETCH_TAG.len() {
378 fetch_context.push_str("</fetched_urls>\n");
379 message
380 .content
381 .push(language_model::MessageContent::Text(fetch_context));
382 }
383
384 if rules_context.len() > OPEN_RULES_TAG.len() {
385 rules_context.push_str("</user_rules>\n");
386 message
387 .content
388 .push(language_model::MessageContent::Text(rules_context));
389 }
390
391 if diagnostics_context.len() > OPEN_DIAGNOSTICS_TAG.len() {
392 diagnostics_context.push_str("</diagnostics>\n");
393 message
394 .content
395 .push(language_model::MessageContent::Text(diagnostics_context));
396 }
397
398 if message.content.len() > len_before_context {
399 message.content.insert(
400 len_before_context,
401 language_model::MessageContent::Text(OPEN_CONTEXT.into()),
402 );
403 message
404 .content
405 .push(language_model::MessageContent::Text("</context>".into()));
406 }
407
408 message
409 }
410}
411
412fn codeblock_tag(full_path: &Path, line_range: Option<&RangeInclusive<u32>>) -> String {
413 let mut result = String::new();
414
415 if let Some(extension) = full_path.extension().and_then(|ext| ext.to_str()) {
416 let _ = write!(result, "{} ", extension);
417 }
418
419 let _ = write!(result, "{}", full_path.display());
420
421 if let Some(range) = line_range {
422 if range.start() == range.end() {
423 let _ = write!(result, ":{}", range.start() + 1);
424 } else {
425 let _ = write!(result, ":{}-{}", range.start() + 1, range.end() + 1);
426 }
427 }
428
429 result
430}
431
432impl AgentMessage {
433 pub fn to_markdown(&self) -> String {
434 let mut markdown = String::from("## Assistant\n\n");
435
436 for content in &self.content {
437 match content {
438 AgentMessageContent::Text(text) => {
439 markdown.push_str(text);
440 markdown.push('\n');
441 }
442 AgentMessageContent::Thinking { text, .. } => {
443 markdown.push_str("<think>");
444 markdown.push_str(text);
445 markdown.push_str("</think>\n");
446 }
447 AgentMessageContent::RedactedThinking(_) => {
448 markdown.push_str("<redacted_thinking />\n")
449 }
450 AgentMessageContent::ToolUse(tool_use) => {
451 markdown.push_str(&format!(
452 "**Tool Use**: {} (ID: {})\n",
453 tool_use.name, tool_use.id
454 ));
455 markdown.push_str(&format!(
456 "{}\n",
457 MarkdownCodeBlock {
458 tag: "json",
459 text: &format!("{:#}", tool_use.input)
460 }
461 ));
462 }
463 }
464 }
465
466 for tool_result in self.tool_results.values() {
467 markdown.push_str(&format!(
468 "**Tool Result**: {} (ID: {})\n\n",
469 tool_result.tool_name, tool_result.tool_use_id
470 ));
471 if tool_result.is_error {
472 markdown.push_str("**ERROR:**\n");
473 }
474
475 match &tool_result.content {
476 LanguageModelToolResultContent::Text(text) => {
477 writeln!(markdown, "{text}\n").ok();
478 }
479 LanguageModelToolResultContent::Image(_) => {
480 writeln!(markdown, "<image />\n").ok();
481 }
482 }
483
484 if let Some(output) = tool_result.output.as_ref() {
485 writeln!(
486 markdown,
487 "**Debug Output**:\n\n```json\n{}\n```\n",
488 serde_json::to_string_pretty(output).unwrap()
489 )
490 .unwrap();
491 }
492 }
493
494 markdown
495 }
496
497 pub fn to_request(&self) -> Vec<LanguageModelRequestMessage> {
498 let mut assistant_message = LanguageModelRequestMessage {
499 role: Role::Assistant,
500 content: Vec::with_capacity(self.content.len()),
501 cache: false,
502 reasoning_details: self.reasoning_details.clone(),
503 };
504 for chunk in &self.content {
505 match chunk {
506 AgentMessageContent::Text(text) => {
507 assistant_message
508 .content
509 .push(language_model::MessageContent::Text(text.clone()));
510 }
511 AgentMessageContent::Thinking { text, signature } => {
512 assistant_message
513 .content
514 .push(language_model::MessageContent::Thinking {
515 text: text.clone(),
516 signature: signature.clone(),
517 });
518 }
519 AgentMessageContent::RedactedThinking(value) => {
520 assistant_message.content.push(
521 language_model::MessageContent::RedactedThinking(value.clone()),
522 );
523 }
524 AgentMessageContent::ToolUse(tool_use) => {
525 if self.tool_results.contains_key(&tool_use.id) {
526 assistant_message
527 .content
528 .push(language_model::MessageContent::ToolUse(tool_use.clone()));
529 }
530 }
531 };
532 }
533
534 let mut user_message = LanguageModelRequestMessage {
535 role: Role::User,
536 content: Vec::new(),
537 cache: false,
538 reasoning_details: None,
539 };
540
541 for tool_result in self.tool_results.values() {
542 let mut tool_result = tool_result.clone();
543 // Surprisingly, the API fails if we return an empty string here.
544 // It thinks we are sending a tool use without a tool result.
545 if tool_result.content.is_empty() {
546 tool_result.content = "<Tool returned an empty string>".into();
547 }
548 user_message
549 .content
550 .push(language_model::MessageContent::ToolResult(tool_result));
551 }
552
553 let mut messages = Vec::new();
554 if !assistant_message.content.is_empty() {
555 messages.push(assistant_message);
556 }
557 if !user_message.content.is_empty() {
558 messages.push(user_message);
559 }
560 messages
561 }
562}
563
564#[derive(Default, Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
565pub struct AgentMessage {
566 pub content: Vec<AgentMessageContent>,
567 pub tool_results: IndexMap<LanguageModelToolUseId, LanguageModelToolResult>,
568 pub reasoning_details: Option<serde_json::Value>,
569}
570
571#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
572pub enum AgentMessageContent {
573 Text(String),
574 Thinking {
575 text: String,
576 signature: Option<String>,
577 },
578 RedactedThinking(String),
579 ToolUse(LanguageModelToolUse),
580}
581
582pub trait TerminalHandle {
583 fn id(&self, cx: &AsyncApp) -> Result<acp::TerminalId>;
584 fn current_output(&self, cx: &AsyncApp) -> Result<acp::TerminalOutputResponse>;
585 fn wait_for_exit(&self, cx: &AsyncApp) -> Result<Shared<Task<acp::TerminalExitStatus>>>;
586 fn kill(&self, cx: &AsyncApp) -> Result<()>;
587 fn was_stopped_by_user(&self, cx: &AsyncApp) -> Result<bool>;
588}
589
590pub trait ThreadEnvironment {
591 fn create_terminal(
592 &self,
593 command: String,
594 cwd: Option<PathBuf>,
595 output_byte_limit: Option<u64>,
596 cx: &mut AsyncApp,
597 ) -> Task<Result<Rc<dyn TerminalHandle>>>;
598}
599
600#[derive(Debug)]
601pub enum ThreadEvent {
602 UserMessage(UserMessage),
603 AgentText(String),
604 AgentThinking(String),
605 ToolCall(acp::ToolCall),
606 ToolCallUpdate(acp_thread::ToolCallUpdate),
607 ToolCallAuthorization(ToolCallAuthorization),
608 Retry(acp_thread::RetryStatus),
609 Stop(acp::StopReason),
610}
611
612#[derive(Debug)]
613pub struct NewTerminal {
614 pub command: String,
615 pub output_byte_limit: Option<u64>,
616 pub cwd: Option<PathBuf>,
617 pub response: oneshot::Sender<Result<Entity<acp_thread::Terminal>>>,
618}
619
620#[derive(Debug, Clone)]
621pub struct ToolPermissionContext {
622 pub tool_name: String,
623 pub input_value: String,
624}
625
626impl ToolPermissionContext {
627 pub fn new(tool_name: impl Into<String>, input_value: impl Into<String>) -> Self {
628 Self {
629 tool_name: tool_name.into(),
630 input_value: input_value.into(),
631 }
632 }
633
634 /// Builds the permission options for this tool context.
635 ///
636 /// This is the canonical source for permission option generation.
637 /// Tests should use this function rather than manually constructing options.
638 ///
639 /// # Shell Compatibility for Terminal Tool
640 ///
641 /// For the terminal tool, "Always allow" options are only shown when the user's
642 /// shell supports POSIX-like command chaining syntax (`&&`, `||`, `;`, `|`).
643 ///
644 /// **Why this matters:** When a user sets up an "always allow" pattern like `^cargo`,
645 /// we need to parse the command to extract all sub-commands and verify that EVERY
646 /// sub-command matches the pattern. Otherwise, an attacker could craft a command like
647 /// `cargo build && rm -rf /` that would bypass the security check.
648 ///
649 /// **Supported shells:** Posix (sh, bash, dash, zsh), Fish 3.0+, PowerShell 7+/Pwsh,
650 /// Cmd, Xonsh, Csh, Tcsh
651 ///
652 /// **Unsupported shells:** Nushell (uses `and`/`or` keywords), Elvish (uses `and`/`or`
653 /// keywords), Rc (Plan 9 shell - no `&&`/`||` operators)
654 ///
655 /// For unsupported shells, we hide the "Always allow" UI options entirely, and if
656 /// the user has `always_allow` rules configured in settings, `ToolPermissionDecision::from_input`
657 /// will return a `Deny` with an explanatory error message.
658 pub fn build_permission_options(&self) -> acp_thread::PermissionOptions {
659 use crate::pattern_extraction::*;
660 use util::shell::ShellKind;
661
662 let tool_name = &self.tool_name;
663 let input_value = &self.input_value;
664
665 // Check if the user's shell supports POSIX-like command chaining.
666 // See the doc comment above for the full explanation of why this is needed.
667 let shell_supports_always_allow = if tool_name == TerminalTool::NAME {
668 ShellKind::system().supports_posix_chaining()
669 } else {
670 true
671 };
672
673 let (pattern, pattern_display) = if tool_name == TerminalTool::NAME {
674 (
675 extract_terminal_pattern(input_value),
676 extract_terminal_pattern_display(input_value),
677 )
678 } else if tool_name == CopyPathTool::NAME || tool_name == MovePathTool::NAME {
679 // input_value is "source\ndestination"; extract a pattern from the
680 // common parent directory of both paths so that "always allow" covers
681 // future checks against both the source and the destination.
682 (
683 extract_copy_move_pattern(input_value),
684 extract_copy_move_pattern_display(input_value),
685 )
686 } else if tool_name == EditFileTool::NAME
687 || tool_name == DeletePathTool::NAME
688 || tool_name == CreateDirectoryTool::NAME
689 || tool_name == SaveFileTool::NAME
690 {
691 (
692 extract_path_pattern(input_value),
693 extract_path_pattern_display(input_value),
694 )
695 } else if tool_name == FetchTool::NAME {
696 (
697 extract_url_pattern(input_value),
698 extract_url_pattern_display(input_value),
699 )
700 } else {
701 (None, None)
702 };
703
704 let mut choices = Vec::new();
705
706 let mut push_choice = |label: String, allow_id, deny_id, allow_kind, deny_kind| {
707 choices.push(acp_thread::PermissionOptionChoice {
708 allow: acp::PermissionOption::new(
709 acp::PermissionOptionId::new(allow_id),
710 label.clone(),
711 allow_kind,
712 ),
713 deny: acp::PermissionOption::new(
714 acp::PermissionOptionId::new(deny_id),
715 label,
716 deny_kind,
717 ),
718 });
719 };
720
721 if shell_supports_always_allow {
722 push_choice(
723 format!("Always for {}", tool_name.replace('_', " ")),
724 format!("always_allow:{}", tool_name),
725 format!("always_deny:{}", tool_name),
726 acp::PermissionOptionKind::AllowAlways,
727 acp::PermissionOptionKind::RejectAlways,
728 );
729
730 if let (Some(pattern), Some(display)) = (pattern, pattern_display) {
731 let button_text = if tool_name == TerminalTool::NAME {
732 format!("Always for `{}` commands", display)
733 } else {
734 format!("Always for `{}`", display)
735 };
736 push_choice(
737 button_text,
738 format!("always_allow_pattern:{}\n{}", tool_name, pattern),
739 format!("always_deny_pattern:{}\n{}", tool_name, pattern),
740 acp::PermissionOptionKind::AllowAlways,
741 acp::PermissionOptionKind::RejectAlways,
742 );
743 }
744 }
745
746 push_choice(
747 "Only this time".to_string(),
748 "allow".to_string(),
749 "deny".to_string(),
750 acp::PermissionOptionKind::AllowOnce,
751 acp::PermissionOptionKind::RejectOnce,
752 );
753
754 acp_thread::PermissionOptions::Dropdown(choices)
755 }
756}
757
758#[derive(Debug)]
759pub struct ToolCallAuthorization {
760 pub tool_call: acp::ToolCallUpdate,
761 pub options: acp_thread::PermissionOptions,
762 pub response: oneshot::Sender<acp::PermissionOptionId>,
763 pub context: Option<ToolPermissionContext>,
764}
765
766#[derive(Debug, thiserror::Error)]
767enum CompletionError {
768 #[error("max tokens")]
769 MaxTokens,
770 #[error("refusal")]
771 Refusal,
772 #[error(transparent)]
773 Other(#[from] anyhow::Error),
774}
775
776pub struct Thread {
777 id: acp::SessionId,
778 prompt_id: PromptId,
779 updated_at: DateTime<Utc>,
780 title: Option<SharedString>,
781 pending_title_generation: Option<Task<()>>,
782 pending_summary_generation: Option<Shared<Task<Option<SharedString>>>>,
783 summary: Option<SharedString>,
784 messages: Vec<Message>,
785 user_store: Entity<UserStore>,
786 /// Holds the task that handles agent interaction until the end of the turn.
787 /// Survives across multiple requests as the model performs tool calls and
788 /// we run tools, report their results.
789 running_turn: Option<RunningTurn>,
790 /// Flag indicating the UI has a queued message waiting to be sent.
791 /// Used to signal that the turn should end at the next message boundary.
792 has_queued_message: bool,
793 pending_message: Option<AgentMessage>,
794 pub(crate) tools: BTreeMap<SharedString, Arc<dyn AnyAgentTool>>,
795 request_token_usage: HashMap<UserMessageId, language_model::TokenUsage>,
796 #[allow(unused)]
797 cumulative_token_usage: TokenUsage,
798 #[allow(unused)]
799 initial_project_snapshot: Shared<Task<Option<Arc<ProjectSnapshot>>>>,
800 pub(crate) context_server_registry: Entity<ContextServerRegistry>,
801 profile_id: AgentProfileId,
802 project_context: Entity<ProjectContext>,
803 pub(crate) templates: Arc<Templates>,
804 model: Option<Arc<dyn LanguageModel>>,
805 summarization_model: Option<Arc<dyn LanguageModel>>,
806 thinking_enabled: bool,
807 thinking_effort: Option<String>,
808 prompt_capabilities_tx: watch::Sender<acp::PromptCapabilities>,
809 pub(crate) prompt_capabilities_rx: watch::Receiver<acp::PromptCapabilities>,
810 pub(crate) project: Entity<Project>,
811 pub(crate) action_log: Entity<ActionLog>,
812 /// Tracks the last time files were read by the agent, to detect external modifications
813 pub(crate) file_read_times: HashMap<PathBuf, fs::MTime>,
814 /// True if this thread was imported from a shared thread and can be synced.
815 imported: bool,
816 /// If this is a subagent thread, contains context about the parent
817 subagent_context: Option<SubagentContext>,
818 /// Weak references to running subagent threads for cancellation propagation
819 running_subagents: Vec<WeakEntity<Thread>>,
820}
821
822impl Thread {
823 fn prompt_capabilities(model: Option<&dyn LanguageModel>) -> acp::PromptCapabilities {
824 let image = model.map_or(true, |model| model.supports_images());
825 acp::PromptCapabilities::new()
826 .image(image)
827 .embedded_context(true)
828 }
829
830 pub fn new(
831 project: Entity<Project>,
832 project_context: Entity<ProjectContext>,
833 context_server_registry: Entity<ContextServerRegistry>,
834 templates: Arc<Templates>,
835 model: Option<Arc<dyn LanguageModel>>,
836 cx: &mut Context<Self>,
837 ) -> Self {
838 let settings = AgentSettings::get_global(cx);
839 let profile_id = settings.default_profile.clone();
840 let enable_thinking = settings
841 .default_model
842 .as_ref()
843 .is_some_and(|model| model.enable_thinking);
844 let thinking_effort = settings
845 .default_model
846 .as_ref()
847 .and_then(|model| model.effort.clone());
848 let action_log = cx.new(|_cx| ActionLog::new(project.clone()));
849 let (prompt_capabilities_tx, prompt_capabilities_rx) =
850 watch::channel(Self::prompt_capabilities(model.as_deref()));
851 Self {
852 id: acp::SessionId::new(uuid::Uuid::new_v4().to_string()),
853 prompt_id: PromptId::new(),
854 updated_at: Utc::now(),
855 title: None,
856 pending_title_generation: None,
857 pending_summary_generation: None,
858 summary: None,
859 messages: Vec::new(),
860 user_store: project.read(cx).user_store(),
861 running_turn: None,
862 has_queued_message: false,
863 pending_message: None,
864 tools: BTreeMap::default(),
865 request_token_usage: HashMap::default(),
866 cumulative_token_usage: TokenUsage::default(),
867 initial_project_snapshot: {
868 let project_snapshot = Self::project_snapshot(project.clone(), cx);
869 cx.foreground_executor()
870 .spawn(async move { Some(project_snapshot.await) })
871 .shared()
872 },
873 context_server_registry,
874 profile_id,
875 project_context,
876 templates,
877 model,
878 summarization_model: None,
879 thinking_enabled: enable_thinking,
880 thinking_effort,
881 prompt_capabilities_tx,
882 prompt_capabilities_rx,
883 project,
884 action_log,
885 file_read_times: HashMap::default(),
886 imported: false,
887 subagent_context: None,
888 running_subagents: Vec::new(),
889 }
890 }
891
892 pub fn new_subagent(
893 project: Entity<Project>,
894 project_context: Entity<ProjectContext>,
895 context_server_registry: Entity<ContextServerRegistry>,
896 templates: Arc<Templates>,
897 model: Arc<dyn LanguageModel>,
898 subagent_context: SubagentContext,
899 parent_tools: BTreeMap<SharedString, Arc<dyn AnyAgentTool>>,
900 cx: &mut Context<Self>,
901 ) -> Self {
902 let settings = AgentSettings::get_global(cx);
903 let profile_id = settings.default_profile.clone();
904 let enable_thinking = settings
905 .default_model
906 .as_ref()
907 .is_some_and(|model| model.enable_thinking);
908 let thinking_effort = settings
909 .default_model
910 .as_ref()
911 .and_then(|model| model.effort.clone());
912 let action_log = cx.new(|_cx| ActionLog::new(project.clone()));
913 let (prompt_capabilities_tx, prompt_capabilities_rx) =
914 watch::channel(Self::prompt_capabilities(Some(model.as_ref())));
915
916 // Rebind tools that hold thread references to use this subagent's thread
917 // instead of the parent's thread. This is critical for tools like EditFileTool
918 // that make model requests using the thread's ID.
919 let weak_self = cx.weak_entity();
920 let tools: BTreeMap<SharedString, Arc<dyn AnyAgentTool>> = parent_tools
921 .into_iter()
922 .map(|(name, tool)| {
923 let rebound = tool.rebind_thread(weak_self.clone()).unwrap_or(tool);
924 (name, rebound)
925 })
926 .collect();
927
928 Self {
929 id: acp::SessionId::new(uuid::Uuid::new_v4().to_string()),
930 prompt_id: PromptId::new(),
931 updated_at: Utc::now(),
932 title: None,
933 pending_title_generation: None,
934 pending_summary_generation: None,
935 summary: None,
936 messages: Vec::new(),
937 user_store: project.read(cx).user_store(),
938 running_turn: None,
939 has_queued_message: false,
940 pending_message: None,
941 tools,
942 request_token_usage: HashMap::default(),
943 cumulative_token_usage: TokenUsage::default(),
944 initial_project_snapshot: Task::ready(None).shared(),
945 context_server_registry,
946 profile_id,
947 project_context,
948 templates,
949 model: Some(model),
950 summarization_model: None,
951 thinking_enabled: enable_thinking,
952 thinking_effort,
953 prompt_capabilities_tx,
954 prompt_capabilities_rx,
955 project,
956 action_log,
957 file_read_times: HashMap::default(),
958 imported: false,
959 subagent_context: Some(subagent_context),
960 running_subagents: Vec::new(),
961 }
962 }
963
964 pub fn id(&self) -> &acp::SessionId {
965 &self.id
966 }
967
968 /// Returns true if this thread was imported from a shared thread.
969 pub fn is_imported(&self) -> bool {
970 self.imported
971 }
972
973 pub fn replay(
974 &mut self,
975 cx: &mut Context<Self>,
976 ) -> mpsc::UnboundedReceiver<Result<ThreadEvent>> {
977 let (tx, rx) = mpsc::unbounded();
978 let stream = ThreadEventStream(tx);
979 for message in &self.messages {
980 match message {
981 Message::User(user_message) => stream.send_user_message(user_message),
982 Message::Agent(assistant_message) => {
983 for content in &assistant_message.content {
984 match content {
985 AgentMessageContent::Text(text) => stream.send_text(text),
986 AgentMessageContent::Thinking { text, .. } => {
987 stream.send_thinking(text)
988 }
989 AgentMessageContent::RedactedThinking(_) => {}
990 AgentMessageContent::ToolUse(tool_use) => {
991 self.replay_tool_call(
992 tool_use,
993 assistant_message.tool_results.get(&tool_use.id),
994 &stream,
995 cx,
996 );
997 }
998 }
999 }
1000 }
1001 Message::Resume => {}
1002 }
1003 }
1004 rx
1005 }
1006
1007 fn replay_tool_call(
1008 &self,
1009 tool_use: &LanguageModelToolUse,
1010 tool_result: Option<&LanguageModelToolResult>,
1011 stream: &ThreadEventStream,
1012 cx: &mut Context<Self>,
1013 ) {
1014 let tool = self.tools.get(tool_use.name.as_ref()).cloned().or_else(|| {
1015 self.context_server_registry
1016 .read(cx)
1017 .servers()
1018 .find_map(|(_, tools)| {
1019 if let Some(tool) = tools.get(tool_use.name.as_ref()) {
1020 Some(tool.clone())
1021 } else {
1022 None
1023 }
1024 })
1025 });
1026
1027 let Some(tool) = tool else {
1028 stream
1029 .0
1030 .unbounded_send(Ok(ThreadEvent::ToolCall(
1031 acp::ToolCall::new(tool_use.id.to_string(), tool_use.name.to_string())
1032 .status(acp::ToolCallStatus::Failed)
1033 .raw_input(tool_use.input.clone()),
1034 )))
1035 .ok();
1036 return;
1037 };
1038
1039 let title = tool.initial_title(tool_use.input.clone(), cx);
1040 let kind = tool.kind();
1041 stream.send_tool_call(
1042 &tool_use.id,
1043 &tool_use.name,
1044 title,
1045 kind,
1046 tool_use.input.clone(),
1047 );
1048
1049 let output = tool_result
1050 .as_ref()
1051 .and_then(|result| result.output.clone());
1052 if let Some(output) = output.clone() {
1053 // For replay, we use a dummy cancellation receiver since the tool already completed
1054 let (_cancellation_tx, cancellation_rx) = watch::channel(false);
1055 let tool_event_stream = ToolCallEventStream::new(
1056 tool_use.id.clone(),
1057 stream.clone(),
1058 Some(self.project.read(cx).fs().clone()),
1059 cancellation_rx,
1060 );
1061 tool.replay(tool_use.input.clone(), output, tool_event_stream, cx)
1062 .log_err();
1063 }
1064
1065 stream.update_tool_call_fields(
1066 &tool_use.id,
1067 acp::ToolCallUpdateFields::new()
1068 .status(
1069 tool_result
1070 .as_ref()
1071 .map_or(acp::ToolCallStatus::Failed, |result| {
1072 if result.is_error {
1073 acp::ToolCallStatus::Failed
1074 } else {
1075 acp::ToolCallStatus::Completed
1076 }
1077 }),
1078 )
1079 .raw_output(output),
1080 );
1081 }
1082
1083 pub fn from_db(
1084 id: acp::SessionId,
1085 db_thread: DbThread,
1086 project: Entity<Project>,
1087 project_context: Entity<ProjectContext>,
1088 context_server_registry: Entity<ContextServerRegistry>,
1089 templates: Arc<Templates>,
1090 cx: &mut Context<Self>,
1091 ) -> Self {
1092 let settings = AgentSettings::get_global(cx);
1093 let profile_id = db_thread
1094 .profile
1095 .unwrap_or_else(|| settings.default_profile.clone());
1096 let enable_thinking = settings
1097 .default_model
1098 .as_ref()
1099 .is_some_and(|model| model.enable_thinking);
1100 let thinking_effort = settings
1101 .default_model
1102 .as_ref()
1103 .and_then(|model| model.effort.clone());
1104
1105 let mut model = LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
1106 db_thread
1107 .model
1108 .and_then(|model| {
1109 let model = SelectedModel {
1110 provider: model.provider.clone().into(),
1111 model: model.model.into(),
1112 };
1113 registry.select_model(&model, cx)
1114 })
1115 .or_else(|| registry.default_model())
1116 .map(|model| model.model)
1117 });
1118
1119 if model.is_none() {
1120 model = Self::resolve_profile_model(&profile_id, cx);
1121 }
1122 if model.is_none() {
1123 model = LanguageModelRegistry::global(cx).update(cx, |registry, _cx| {
1124 registry.default_model().map(|model| model.model)
1125 });
1126 }
1127
1128 let (prompt_capabilities_tx, prompt_capabilities_rx) =
1129 watch::channel(Self::prompt_capabilities(model.as_deref()));
1130
1131 let action_log = cx.new(|_| ActionLog::new(project.clone()));
1132
1133 Self {
1134 id,
1135 prompt_id: PromptId::new(),
1136 title: if db_thread.title.is_empty() {
1137 None
1138 } else {
1139 Some(db_thread.title.clone())
1140 },
1141 pending_title_generation: None,
1142 pending_summary_generation: None,
1143 summary: db_thread.detailed_summary,
1144 messages: db_thread.messages,
1145 user_store: project.read(cx).user_store(),
1146 running_turn: None,
1147 has_queued_message: false,
1148 pending_message: None,
1149 tools: BTreeMap::default(),
1150 request_token_usage: db_thread.request_token_usage.clone(),
1151 cumulative_token_usage: db_thread.cumulative_token_usage,
1152 initial_project_snapshot: Task::ready(db_thread.initial_project_snapshot).shared(),
1153 context_server_registry,
1154 profile_id,
1155 project_context,
1156 templates,
1157 model,
1158 summarization_model: None,
1159 // TODO: Should we persist this on the `DbThread`?
1160 thinking_enabled: enable_thinking,
1161 thinking_effort,
1162 project,
1163 action_log,
1164 updated_at: db_thread.updated_at,
1165 prompt_capabilities_tx,
1166 prompt_capabilities_rx,
1167 file_read_times: HashMap::default(),
1168 imported: db_thread.imported,
1169 subagent_context: None,
1170 running_subagents: Vec::new(),
1171 }
1172 }
1173
1174 pub fn to_db(&self, cx: &App) -> Task<DbThread> {
1175 let initial_project_snapshot = self.initial_project_snapshot.clone();
1176 let mut thread = DbThread {
1177 title: self.title(),
1178 messages: self.messages.clone(),
1179 updated_at: self.updated_at,
1180 detailed_summary: self.summary.clone(),
1181 initial_project_snapshot: None,
1182 cumulative_token_usage: self.cumulative_token_usage,
1183 request_token_usage: self.request_token_usage.clone(),
1184 model: self.model.as_ref().map(|model| DbLanguageModel {
1185 provider: model.provider_id().to_string(),
1186 model: model.name().0.to_string(),
1187 }),
1188 profile: Some(self.profile_id.clone()),
1189 imported: self.imported,
1190 };
1191
1192 cx.background_spawn(async move {
1193 let initial_project_snapshot = initial_project_snapshot.await;
1194 thread.initial_project_snapshot = initial_project_snapshot;
1195 thread
1196 })
1197 }
1198
1199 /// Create a snapshot of the current project state including git information and unsaved buffers.
1200 fn project_snapshot(
1201 project: Entity<Project>,
1202 cx: &mut Context<Self>,
1203 ) -> Task<Arc<ProjectSnapshot>> {
1204 let task = project::telemetry_snapshot::TelemetrySnapshot::new(&project, cx);
1205 cx.spawn(async move |_, _| {
1206 let snapshot = task.await;
1207
1208 Arc::new(ProjectSnapshot {
1209 worktree_snapshots: snapshot.worktree_snapshots,
1210 timestamp: Utc::now(),
1211 })
1212 })
1213 }
1214
1215 pub fn project_context(&self) -> &Entity<ProjectContext> {
1216 &self.project_context
1217 }
1218
1219 pub fn project(&self) -> &Entity<Project> {
1220 &self.project
1221 }
1222
1223 pub fn action_log(&self) -> &Entity<ActionLog> {
1224 &self.action_log
1225 }
1226
1227 pub fn is_empty(&self) -> bool {
1228 self.messages.is_empty() && self.title.is_none()
1229 }
1230
1231 pub fn model(&self) -> Option<&Arc<dyn LanguageModel>> {
1232 self.model.as_ref()
1233 }
1234
1235 pub fn set_model(&mut self, model: Arc<dyn LanguageModel>, cx: &mut Context<Self>) {
1236 let old_usage = self.latest_token_usage();
1237 self.model = Some(model);
1238 let new_caps = Self::prompt_capabilities(self.model.as_deref());
1239 let new_usage = self.latest_token_usage();
1240 if old_usage != new_usage {
1241 cx.emit(TokenUsageUpdated(new_usage));
1242 }
1243 self.prompt_capabilities_tx.send(new_caps).log_err();
1244 cx.notify()
1245 }
1246
1247 pub fn summarization_model(&self) -> Option<&Arc<dyn LanguageModel>> {
1248 self.summarization_model.as_ref()
1249 }
1250
1251 pub fn set_summarization_model(
1252 &mut self,
1253 model: Option<Arc<dyn LanguageModel>>,
1254 cx: &mut Context<Self>,
1255 ) {
1256 self.summarization_model = model;
1257 cx.notify()
1258 }
1259
1260 pub fn thinking_enabled(&self) -> bool {
1261 self.thinking_enabled
1262 }
1263
1264 pub fn set_thinking_enabled(&mut self, enabled: bool, cx: &mut Context<Self>) {
1265 self.thinking_enabled = enabled;
1266 cx.notify();
1267 }
1268
1269 pub fn thinking_effort(&self) -> Option<&String> {
1270 self.thinking_effort.as_ref()
1271 }
1272
1273 pub fn set_thinking_effort(&mut self, effort: Option<String>, cx: &mut Context<Self>) {
1274 self.thinking_effort = effort;
1275 cx.notify();
1276 }
1277
1278 pub fn last_message(&self) -> Option<Message> {
1279 if let Some(message) = self.pending_message.clone() {
1280 Some(Message::Agent(message))
1281 } else {
1282 self.messages.last().cloned()
1283 }
1284 }
1285
1286 pub fn add_default_tools(
1287 &mut self,
1288 environment: Rc<dyn ThreadEnvironment>,
1289 cx: &mut Context<Self>,
1290 ) {
1291 let language_registry = self.project.read(cx).languages().clone();
1292 self.add_tool(CopyPathTool::new(self.project.clone()));
1293 self.add_tool(CreateDirectoryTool::new(self.project.clone()));
1294 self.add_tool(DeletePathTool::new(
1295 self.project.clone(),
1296 self.action_log.clone(),
1297 ));
1298 self.add_tool(DiagnosticsTool::new(self.project.clone()));
1299 self.add_tool(EditFileTool::new(
1300 self.project.clone(),
1301 cx.weak_entity(),
1302 language_registry.clone(),
1303 Templates::new(),
1304 ));
1305 self.add_tool(StreamingEditFileTool::new(
1306 self.project.clone(),
1307 cx.weak_entity(),
1308 language_registry,
1309 Templates::new(),
1310 ));
1311 self.add_tool(FetchTool::new(self.project.read(cx).client().http_client()));
1312 self.add_tool(FindPathTool::new(self.project.clone()));
1313 self.add_tool(GrepTool::new(self.project.clone()));
1314 self.add_tool(ListDirectoryTool::new(self.project.clone()));
1315 self.add_tool(MovePathTool::new(self.project.clone()));
1316 self.add_tool(NowTool);
1317 self.add_tool(OpenTool::new(self.project.clone()));
1318 self.add_tool(ReadFileTool::new(
1319 cx.weak_entity(),
1320 self.project.clone(),
1321 self.action_log.clone(),
1322 ));
1323 self.add_tool(SaveFileTool::new(self.project.clone()));
1324 self.add_tool(RestoreFileFromDiskTool::new(self.project.clone()));
1325 self.add_tool(TerminalTool::new(self.project.clone(), environment));
1326 self.add_tool(ThinkingTool);
1327 self.add_tool(WebSearchTool);
1328
1329 if cx.has_flag::<SubagentsFeatureFlag>() && self.depth() < MAX_SUBAGENT_DEPTH {
1330 self.add_tool(SubagentTool::new(cx.weak_entity(), self.depth()));
1331 }
1332 }
1333
1334 pub fn add_tool<T: AgentTool>(&mut self, tool: T) {
1335 debug_assert!(
1336 !self.tools.contains_key(T::NAME),
1337 "Duplicate tool name: {}",
1338 T::NAME,
1339 );
1340 self.tools.insert(T::NAME.into(), tool.erase());
1341 }
1342
1343 pub fn remove_tool(&mut self, name: &str) -> bool {
1344 self.tools.remove(name).is_some()
1345 }
1346
1347 pub fn restrict_tools(&mut self, allowed: &collections::HashSet<SharedString>) {
1348 self.tools.retain(|name, _| allowed.contains(name));
1349 }
1350
1351 pub fn profile(&self) -> &AgentProfileId {
1352 &self.profile_id
1353 }
1354
1355 pub fn set_profile(&mut self, profile_id: AgentProfileId, cx: &mut Context<Self>) {
1356 if self.profile_id == profile_id {
1357 return;
1358 }
1359
1360 self.profile_id = profile_id;
1361
1362 // Swap to the profile's preferred model when available.
1363 if let Some(model) = Self::resolve_profile_model(&self.profile_id, cx) {
1364 self.set_model(model, cx);
1365 }
1366 }
1367
1368 pub fn cancel(&mut self, cx: &mut Context<Self>) -> Task<()> {
1369 for subagent in self.running_subagents.drain(..) {
1370 if let Some(subagent) = subagent.upgrade() {
1371 subagent.update(cx, |thread, cx| thread.cancel(cx)).detach();
1372 }
1373 }
1374
1375 let Some(running_turn) = self.running_turn.take() else {
1376 self.flush_pending_message(cx);
1377 return Task::ready(());
1378 };
1379
1380 let turn_task = running_turn.cancel();
1381
1382 cx.spawn(async move |this, cx| {
1383 turn_task.await;
1384 this.update(cx, |this, cx| {
1385 this.flush_pending_message(cx);
1386 })
1387 .ok();
1388 })
1389 }
1390
1391 pub fn set_has_queued_message(&mut self, has_queued: bool) {
1392 self.has_queued_message = has_queued;
1393 }
1394
1395 pub fn has_queued_message(&self) -> bool {
1396 self.has_queued_message
1397 }
1398
1399 fn update_token_usage(&mut self, update: language_model::TokenUsage, cx: &mut Context<Self>) {
1400 let Some(last_user_message) = self.last_user_message() else {
1401 return;
1402 };
1403
1404 self.request_token_usage
1405 .insert(last_user_message.id.clone(), update);
1406 cx.emit(TokenUsageUpdated(self.latest_token_usage()));
1407 cx.notify();
1408 }
1409
1410 pub fn truncate(&mut self, message_id: UserMessageId, cx: &mut Context<Self>) -> Result<()> {
1411 self.cancel(cx).detach();
1412 // Clear pending message since cancel will try to flush it asynchronously,
1413 // and we don't want that content to be added after we truncate
1414 self.pending_message.take();
1415 let Some(position) = self.messages.iter().position(
1416 |msg| matches!(msg, Message::User(UserMessage { id, .. }) if id == &message_id),
1417 ) else {
1418 return Err(anyhow!("Message not found"));
1419 };
1420
1421 for message in self.messages.drain(position..) {
1422 match message {
1423 Message::User(message) => {
1424 self.request_token_usage.remove(&message.id);
1425 }
1426 Message::Agent(_) | Message::Resume => {}
1427 }
1428 }
1429 self.clear_summary();
1430 cx.notify();
1431 Ok(())
1432 }
1433
1434 pub fn latest_request_token_usage(&self) -> Option<language_model::TokenUsage> {
1435 let last_user_message = self.last_user_message()?;
1436 let tokens = self.request_token_usage.get(&last_user_message.id)?;
1437 Some(*tokens)
1438 }
1439
1440 pub fn latest_token_usage(&self) -> Option<acp_thread::TokenUsage> {
1441 let usage = self.latest_request_token_usage()?;
1442 let model = self.model.clone()?;
1443 Some(acp_thread::TokenUsage {
1444 max_tokens: model.max_token_count(),
1445 used_tokens: usage.total_tokens(),
1446 input_tokens: usage.input_tokens,
1447 output_tokens: usage.output_tokens,
1448 })
1449 }
1450
1451 /// Get the total input token count as of the message before the given message.
1452 ///
1453 /// Returns `None` if:
1454 /// - `target_id` is the first message (no previous message)
1455 /// - The previous message hasn't received a response yet (no usage data)
1456 /// - `target_id` is not found in the messages
1457 pub fn tokens_before_message(&self, target_id: &UserMessageId) -> Option<u64> {
1458 let mut previous_user_message_id: Option<&UserMessageId> = None;
1459
1460 for message in &self.messages {
1461 if let Message::User(user_msg) = message {
1462 if &user_msg.id == target_id {
1463 let prev_id = previous_user_message_id?;
1464 let usage = self.request_token_usage.get(prev_id)?;
1465 return Some(usage.input_tokens);
1466 }
1467 previous_user_message_id = Some(&user_msg.id);
1468 }
1469 }
1470 None
1471 }
1472
1473 /// Look up the active profile and resolve its preferred model if one is configured.
1474 fn resolve_profile_model(
1475 profile_id: &AgentProfileId,
1476 cx: &mut Context<Self>,
1477 ) -> Option<Arc<dyn LanguageModel>> {
1478 let selection = AgentSettings::get_global(cx)
1479 .profiles
1480 .get(profile_id)?
1481 .default_model
1482 .clone()?;
1483 Self::resolve_model_from_selection(&selection, cx)
1484 }
1485
1486 /// Translate a stored model selection into the configured model from the registry.
1487 fn resolve_model_from_selection(
1488 selection: &LanguageModelSelection,
1489 cx: &mut Context<Self>,
1490 ) -> Option<Arc<dyn LanguageModel>> {
1491 let selected = SelectedModel {
1492 provider: LanguageModelProviderId::from(selection.provider.0.clone()),
1493 model: LanguageModelId::from(selection.model.clone()),
1494 };
1495 LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
1496 registry
1497 .select_model(&selected, cx)
1498 .map(|configured| configured.model)
1499 })
1500 }
1501
1502 pub fn resume(
1503 &mut self,
1504 cx: &mut Context<Self>,
1505 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
1506 self.messages.push(Message::Resume);
1507 cx.notify();
1508
1509 log::debug!("Total messages in thread: {}", self.messages.len());
1510 self.run_turn(cx)
1511 }
1512
1513 /// Sending a message results in the model streaming a response, which could include tool calls.
1514 /// After calling tools, the model will stops and waits for any outstanding tool calls to be completed and their results sent.
1515 /// The returned channel will report all the occurrences in which the model stops before erroring or ending its turn.
1516 pub fn send<T>(
1517 &mut self,
1518 id: UserMessageId,
1519 content: impl IntoIterator<Item = T>,
1520 cx: &mut Context<Self>,
1521 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>>
1522 where
1523 T: Into<UserMessageContent>,
1524 {
1525 let content = content.into_iter().map(Into::into).collect::<Vec<_>>();
1526 log::debug!("Thread::send content: {:?}", content);
1527
1528 self.messages
1529 .push(Message::User(UserMessage { id, content }));
1530 cx.notify();
1531
1532 self.send_existing(cx)
1533 }
1534
1535 pub fn send_existing(
1536 &mut self,
1537 cx: &mut Context<Self>,
1538 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
1539 let model = self.model().context("No language model configured")?;
1540
1541 log::info!("Thread::send called with model: {}", model.name().0);
1542 self.advance_prompt_id();
1543
1544 log::debug!("Total messages in thread: {}", self.messages.len());
1545 self.run_turn(cx)
1546 }
1547
1548 pub fn push_acp_user_block(
1549 &mut self,
1550 id: UserMessageId,
1551 blocks: impl IntoIterator<Item = acp::ContentBlock>,
1552 path_style: PathStyle,
1553 cx: &mut Context<Self>,
1554 ) {
1555 let content = blocks
1556 .into_iter()
1557 .map(|block| UserMessageContent::from_content_block(block, path_style))
1558 .collect::<Vec<_>>();
1559 self.messages
1560 .push(Message::User(UserMessage { id, content }));
1561 cx.notify();
1562 }
1563
1564 pub fn push_acp_agent_block(&mut self, block: acp::ContentBlock, cx: &mut Context<Self>) {
1565 let text = match block {
1566 acp::ContentBlock::Text(text_content) => text_content.text,
1567 acp::ContentBlock::Image(_) => "[image]".to_string(),
1568 acp::ContentBlock::Audio(_) => "[audio]".to_string(),
1569 acp::ContentBlock::ResourceLink(resource_link) => resource_link.uri,
1570 acp::ContentBlock::Resource(resource) => match resource.resource {
1571 acp::EmbeddedResourceResource::TextResourceContents(resource) => resource.uri,
1572 acp::EmbeddedResourceResource::BlobResourceContents(resource) => resource.uri,
1573 _ => "[resource]".to_string(),
1574 },
1575 _ => "[unknown]".to_string(),
1576 };
1577
1578 self.messages.push(Message::Agent(AgentMessage {
1579 content: vec![AgentMessageContent::Text(text)],
1580 ..Default::default()
1581 }));
1582 cx.notify();
1583 }
1584
1585 #[cfg(feature = "eval")]
1586 pub fn proceed(
1587 &mut self,
1588 cx: &mut Context<Self>,
1589 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
1590 self.run_turn(cx)
1591 }
1592
1593 fn run_turn(
1594 &mut self,
1595 cx: &mut Context<Self>,
1596 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
1597 // Flush the old pending message synchronously before cancelling,
1598 // to avoid a race where the detached cancel task might flush the NEW
1599 // turn's pending message instead of the old one.
1600 self.flush_pending_message(cx);
1601 self.cancel(cx).detach();
1602
1603 let model = self.model.clone().context("No language model configured")?;
1604 let profile = AgentSettings::get_global(cx)
1605 .profiles
1606 .get(&self.profile_id)
1607 .context("Profile not found")?;
1608 let (events_tx, events_rx) = mpsc::unbounded::<Result<ThreadEvent>>();
1609 let event_stream = ThreadEventStream(events_tx);
1610 let message_ix = self.messages.len().saturating_sub(1);
1611 self.clear_summary();
1612 let (cancellation_tx, mut cancellation_rx) = watch::channel(false);
1613 self.running_turn = Some(RunningTurn {
1614 event_stream: event_stream.clone(),
1615 tools: self.enabled_tools(profile, &model, cx),
1616 cancellation_tx,
1617 _task: cx.spawn(async move |this, cx| {
1618 log::debug!("Starting agent turn execution");
1619
1620 let turn_result = Self::run_turn_internal(
1621 &this,
1622 model,
1623 &event_stream,
1624 cancellation_rx.clone(),
1625 cx,
1626 )
1627 .await;
1628
1629 // Check if we were cancelled - if so, cancel() already took running_turn
1630 // and we shouldn't touch it (it might be a NEW turn now)
1631 let was_cancelled = *cancellation_rx.borrow();
1632 if was_cancelled {
1633 log::debug!("Turn was cancelled, skipping cleanup");
1634 return;
1635 }
1636
1637 _ = this.update(cx, |this, cx| this.flush_pending_message(cx));
1638
1639 match turn_result {
1640 Ok(()) => {
1641 log::debug!("Turn execution completed");
1642 event_stream.send_stop(acp::StopReason::EndTurn);
1643 }
1644 Err(error) => {
1645 log::error!("Turn execution failed: {:?}", error);
1646 match error.downcast::<CompletionError>() {
1647 Ok(CompletionError::Refusal) => {
1648 event_stream.send_stop(acp::StopReason::Refusal);
1649 _ = this.update(cx, |this, _| this.messages.truncate(message_ix));
1650 }
1651 Ok(CompletionError::MaxTokens) => {
1652 event_stream.send_stop(acp::StopReason::MaxTokens);
1653 }
1654 Ok(CompletionError::Other(error)) | Err(error) => {
1655 event_stream.send_error(error);
1656 }
1657 }
1658 }
1659 }
1660
1661 _ = this.update(cx, |this, _| this.running_turn.take());
1662 }),
1663 });
1664 Ok(events_rx)
1665 }
1666
1667 async fn run_turn_internal(
1668 this: &WeakEntity<Self>,
1669 model: Arc<dyn LanguageModel>,
1670 event_stream: &ThreadEventStream,
1671 mut cancellation_rx: watch::Receiver<bool>,
1672 cx: &mut AsyncApp,
1673 ) -> Result<()> {
1674 let mut attempt = 0;
1675 let mut intent = CompletionIntent::UserPrompt;
1676 loop {
1677 let request =
1678 this.update(cx, |this, cx| this.build_completion_request(intent, cx))??;
1679
1680 telemetry::event!(
1681 "Agent Thread Completion",
1682 thread_id = this.read_with(cx, |this, _| this.id.to_string())?,
1683 prompt_id = this.read_with(cx, |this, _| this.prompt_id.to_string())?,
1684 model = model.telemetry_id(),
1685 model_provider = model.provider_id().to_string(),
1686 attempt
1687 );
1688
1689 log::debug!("Calling model.stream_completion, attempt {}", attempt);
1690
1691 let (mut events, mut error) = match model.stream_completion(request, cx).await {
1692 Ok(events) => (events.fuse(), None),
1693 Err(err) => (stream::empty().boxed().fuse(), Some(err)),
1694 };
1695 let mut tool_results = FuturesUnordered::new();
1696 let mut cancelled = false;
1697 loop {
1698 // Race between getting the first event and cancellation
1699 let first_event = futures::select! {
1700 event = events.next().fuse() => event,
1701 _ = cancellation_rx.changed().fuse() => {
1702 if *cancellation_rx.borrow() {
1703 cancelled = true;
1704 break;
1705 }
1706 continue;
1707 }
1708 };
1709 let Some(first_event) = first_event else {
1710 break;
1711 };
1712
1713 // Collect all immediately available events to process as a batch
1714 let mut batch = vec![first_event];
1715 while let Some(event) = events.next().now_or_never().flatten() {
1716 batch.push(event);
1717 }
1718
1719 // Process the batch in a single update
1720 let batch_result = this.update(cx, |this, cx| {
1721 let mut batch_tool_results = Vec::new();
1722 let mut batch_error = None;
1723
1724 for event in batch {
1725 log::trace!("Received completion event: {:?}", event);
1726 match event {
1727 Ok(event) => {
1728 match this.handle_completion_event(
1729 event,
1730 event_stream,
1731 cancellation_rx.clone(),
1732 cx,
1733 ) {
1734 Ok(Some(task)) => batch_tool_results.push(task),
1735 Ok(None) => {}
1736 Err(err) => {
1737 batch_error = Some(err);
1738 break;
1739 }
1740 }
1741 }
1742 Err(err) => {
1743 batch_error = Some(err.into());
1744 break;
1745 }
1746 }
1747 }
1748
1749 cx.notify();
1750 (batch_tool_results, batch_error)
1751 })?;
1752
1753 tool_results.extend(batch_result.0);
1754 if let Some(err) = batch_result.1 {
1755 error = Some(err.downcast()?);
1756 break;
1757 }
1758 }
1759
1760 // Drop the stream to release the rate limit permit before tool execution.
1761 // The stream holds a semaphore guard that limits concurrent requests.
1762 // Without this, the permit would be held during potentially long-running
1763 // tool execution, which could cause deadlocks when tools spawn subagents
1764 // that need their own permits.
1765 drop(events);
1766
1767 let end_turn = tool_results.is_empty();
1768 while let Some(tool_result) = tool_results.next().await {
1769 log::debug!("Tool finished {:?}", tool_result);
1770
1771 event_stream.update_tool_call_fields(
1772 &tool_result.tool_use_id,
1773 acp::ToolCallUpdateFields::new()
1774 .status(if tool_result.is_error {
1775 acp::ToolCallStatus::Failed
1776 } else {
1777 acp::ToolCallStatus::Completed
1778 })
1779 .raw_output(tool_result.output.clone()),
1780 );
1781 this.update(cx, |this, _cx| {
1782 this.pending_message()
1783 .tool_results
1784 .insert(tool_result.tool_use_id.clone(), tool_result);
1785 })?;
1786 }
1787
1788 this.update(cx, |this, cx| {
1789 this.flush_pending_message(cx);
1790 if this.title.is_none() && this.pending_title_generation.is_none() {
1791 this.generate_title(cx);
1792 }
1793 })?;
1794
1795 if cancelled {
1796 log::debug!("Turn cancelled by user, exiting");
1797 return Ok(());
1798 }
1799
1800 if let Some(error) = error {
1801 attempt += 1;
1802 let retry = this.update(cx, |this, cx| {
1803 let user_store = this.user_store.read(cx);
1804 this.handle_completion_error(error, attempt, user_store.plan())
1805 })??;
1806 let timer = cx.background_executor().timer(retry.duration);
1807 event_stream.send_retry(retry);
1808 timer.await;
1809 this.update(cx, |this, _cx| {
1810 if let Some(Message::Agent(message)) = this.messages.last() {
1811 if message.tool_results.is_empty() {
1812 intent = CompletionIntent::UserPrompt;
1813 this.messages.push(Message::Resume);
1814 }
1815 }
1816 })?;
1817 } else if end_turn {
1818 return Ok(());
1819 } else {
1820 let has_queued = this.update(cx, |this, _| this.has_queued_message())?;
1821 if has_queued {
1822 log::debug!("Queued message found, ending turn at message boundary");
1823 return Ok(());
1824 }
1825 intent = CompletionIntent::ToolResults;
1826 attempt = 0;
1827 }
1828 }
1829 }
1830
1831 fn handle_completion_error(
1832 &mut self,
1833 error: LanguageModelCompletionError,
1834 attempt: u8,
1835 plan: Option<Plan>,
1836 ) -> Result<acp_thread::RetryStatus> {
1837 let Some(model) = self.model.as_ref() else {
1838 return Err(anyhow!(error));
1839 };
1840
1841 let auto_retry = if model.provider_id() == ZED_CLOUD_PROVIDER_ID {
1842 plan.is_some()
1843 } else {
1844 true
1845 };
1846
1847 if !auto_retry {
1848 return Err(anyhow!(error));
1849 }
1850
1851 let Some(strategy) = Self::retry_strategy_for(&error) else {
1852 return Err(anyhow!(error));
1853 };
1854
1855 let max_attempts = match &strategy {
1856 RetryStrategy::ExponentialBackoff { max_attempts, .. } => *max_attempts,
1857 RetryStrategy::Fixed { max_attempts, .. } => *max_attempts,
1858 };
1859
1860 if attempt > max_attempts {
1861 return Err(anyhow!(error));
1862 }
1863
1864 let delay = match &strategy {
1865 RetryStrategy::ExponentialBackoff { initial_delay, .. } => {
1866 let delay_secs = initial_delay.as_secs() * 2u64.pow((attempt - 1) as u32);
1867 Duration::from_secs(delay_secs)
1868 }
1869 RetryStrategy::Fixed { delay, .. } => *delay,
1870 };
1871 log::debug!("Retry attempt {attempt} with delay {delay:?}");
1872
1873 Ok(acp_thread::RetryStatus {
1874 last_error: error.to_string().into(),
1875 attempt: attempt as usize,
1876 max_attempts: max_attempts as usize,
1877 started_at: Instant::now(),
1878 duration: delay,
1879 })
1880 }
1881
1882 /// A helper method that's called on every streamed completion event.
1883 /// Returns an optional tool result task, which the main agentic loop will
1884 /// send back to the model when it resolves.
1885 fn handle_completion_event(
1886 &mut self,
1887 event: LanguageModelCompletionEvent,
1888 event_stream: &ThreadEventStream,
1889 cancellation_rx: watch::Receiver<bool>,
1890 cx: &mut Context<Self>,
1891 ) -> Result<Option<Task<LanguageModelToolResult>>> {
1892 log::trace!("Handling streamed completion event: {:?}", event);
1893 use LanguageModelCompletionEvent::*;
1894
1895 match event {
1896 StartMessage { .. } => {
1897 self.flush_pending_message(cx);
1898 self.pending_message = Some(AgentMessage::default());
1899 }
1900 Text(new_text) => self.handle_text_event(new_text, event_stream),
1901 Thinking { text, signature } => {
1902 self.handle_thinking_event(text, signature, event_stream)
1903 }
1904 RedactedThinking { data } => self.handle_redacted_thinking_event(data),
1905 ReasoningDetails(details) => {
1906 let last_message = self.pending_message();
1907 // Store the last non-empty reasoning_details (overwrites earlier ones)
1908 // This ensures we keep the encrypted reasoning with signatures, not the early text reasoning
1909 if let serde_json::Value::Array(ref arr) = details {
1910 if !arr.is_empty() {
1911 last_message.reasoning_details = Some(details);
1912 }
1913 } else {
1914 last_message.reasoning_details = Some(details);
1915 }
1916 }
1917 ToolUse(tool_use) => {
1918 return Ok(self.handle_tool_use_event(tool_use, event_stream, cancellation_rx, cx));
1919 }
1920 ToolUseJsonParseError {
1921 id,
1922 tool_name,
1923 raw_input,
1924 json_parse_error,
1925 } => {
1926 return Ok(Some(Task::ready(
1927 self.handle_tool_use_json_parse_error_event(
1928 id,
1929 tool_name,
1930 raw_input,
1931 json_parse_error,
1932 ),
1933 )));
1934 }
1935 UsageUpdate(usage) => {
1936 telemetry::event!(
1937 "Agent Thread Completion Usage Updated",
1938 thread_id = self.id.to_string(),
1939 prompt_id = self.prompt_id.to_string(),
1940 model = self.model.as_ref().map(|m| m.telemetry_id()),
1941 model_provider = self.model.as_ref().map(|m| m.provider_id().to_string()),
1942 input_tokens = usage.input_tokens,
1943 output_tokens = usage.output_tokens,
1944 cache_creation_input_tokens = usage.cache_creation_input_tokens,
1945 cache_read_input_tokens = usage.cache_read_input_tokens,
1946 );
1947 self.update_token_usage(usage, cx);
1948 }
1949 Stop(StopReason::Refusal) => return Err(CompletionError::Refusal.into()),
1950 Stop(StopReason::MaxTokens) => return Err(CompletionError::MaxTokens.into()),
1951 Stop(StopReason::ToolUse | StopReason::EndTurn) => {}
1952 Started | Queued { .. } => {}
1953 }
1954
1955 Ok(None)
1956 }
1957
1958 fn handle_text_event(&mut self, new_text: String, event_stream: &ThreadEventStream) {
1959 event_stream.send_text(&new_text);
1960
1961 let last_message = self.pending_message();
1962 if let Some(AgentMessageContent::Text(text)) = last_message.content.last_mut() {
1963 text.push_str(&new_text);
1964 } else {
1965 last_message
1966 .content
1967 .push(AgentMessageContent::Text(new_text));
1968 }
1969 }
1970
1971 fn handle_thinking_event(
1972 &mut self,
1973 new_text: String,
1974 new_signature: Option<String>,
1975 event_stream: &ThreadEventStream,
1976 ) {
1977 event_stream.send_thinking(&new_text);
1978
1979 let last_message = self.pending_message();
1980 if let Some(AgentMessageContent::Thinking { text, signature }) =
1981 last_message.content.last_mut()
1982 {
1983 text.push_str(&new_text);
1984 *signature = new_signature.or(signature.take());
1985 } else {
1986 last_message.content.push(AgentMessageContent::Thinking {
1987 text: new_text,
1988 signature: new_signature,
1989 });
1990 }
1991 }
1992
1993 fn handle_redacted_thinking_event(&mut self, data: String) {
1994 let last_message = self.pending_message();
1995 last_message
1996 .content
1997 .push(AgentMessageContent::RedactedThinking(data));
1998 }
1999
2000 fn handle_tool_use_event(
2001 &mut self,
2002 tool_use: LanguageModelToolUse,
2003 event_stream: &ThreadEventStream,
2004 cancellation_rx: watch::Receiver<bool>,
2005 cx: &mut Context<Self>,
2006 ) -> Option<Task<LanguageModelToolResult>> {
2007 cx.notify();
2008
2009 let tool = self.tool(tool_use.name.as_ref());
2010 let mut title = SharedString::from(&tool_use.name);
2011 let mut kind = acp::ToolKind::Other;
2012 if let Some(tool) = tool.as_ref() {
2013 title = tool.initial_title(tool_use.input.clone(), cx);
2014 kind = tool.kind();
2015 }
2016
2017 // Ensure the last message ends in the current tool use
2018 let last_message = self.pending_message();
2019 let push_new_tool_use = last_message.content.last_mut().is_none_or(|content| {
2020 if let AgentMessageContent::ToolUse(last_tool_use) = content {
2021 if last_tool_use.id == tool_use.id {
2022 *last_tool_use = tool_use.clone();
2023 false
2024 } else {
2025 true
2026 }
2027 } else {
2028 true
2029 }
2030 });
2031
2032 if push_new_tool_use {
2033 event_stream.send_tool_call(
2034 &tool_use.id,
2035 &tool_use.name,
2036 title,
2037 kind,
2038 tool_use.input.clone(),
2039 );
2040 last_message
2041 .content
2042 .push(AgentMessageContent::ToolUse(tool_use.clone()));
2043 } else {
2044 event_stream.update_tool_call_fields(
2045 &tool_use.id,
2046 acp::ToolCallUpdateFields::new()
2047 .title(title.as_str())
2048 .kind(kind)
2049 .raw_input(tool_use.input.clone()),
2050 );
2051 }
2052
2053 if !tool_use.is_input_complete {
2054 return None;
2055 }
2056
2057 let Some(tool) = tool else {
2058 let content = format!("No tool named {} exists", tool_use.name);
2059 return Some(Task::ready(LanguageModelToolResult {
2060 content: LanguageModelToolResultContent::Text(Arc::from(content)),
2061 tool_use_id: tool_use.id,
2062 tool_name: tool_use.name,
2063 is_error: true,
2064 output: None,
2065 }));
2066 };
2067
2068 let fs = self.project.read(cx).fs().clone();
2069 let tool_event_stream = ToolCallEventStream::new(
2070 tool_use.id.clone(),
2071 event_stream.clone(),
2072 Some(fs),
2073 cancellation_rx,
2074 );
2075 tool_event_stream.update_fields(
2076 acp::ToolCallUpdateFields::new().status(acp::ToolCallStatus::InProgress),
2077 );
2078 let supports_images = self.model().is_some_and(|model| model.supports_images());
2079 let tool_result = tool.run(tool_use.input, tool_event_stream, cx);
2080 log::debug!("Running tool {}", tool_use.name);
2081 Some(cx.foreground_executor().spawn(async move {
2082 let tool_result = tool_result.await.and_then(|output| {
2083 if let LanguageModelToolResultContent::Image(_) = &output.llm_output
2084 && !supports_images
2085 {
2086 return Err(anyhow!(
2087 "Attempted to read an image, but this model doesn't support it.",
2088 ));
2089 }
2090 Ok(output)
2091 });
2092
2093 match tool_result {
2094 Ok(output) => LanguageModelToolResult {
2095 tool_use_id: tool_use.id,
2096 tool_name: tool_use.name,
2097 is_error: false,
2098 content: output.llm_output,
2099 output: Some(output.raw_output),
2100 },
2101 Err(error) => LanguageModelToolResult {
2102 tool_use_id: tool_use.id,
2103 tool_name: tool_use.name,
2104 is_error: true,
2105 content: LanguageModelToolResultContent::Text(Arc::from(error.to_string())),
2106 output: Some(error.to_string().into()),
2107 },
2108 }
2109 }))
2110 }
2111
2112 fn handle_tool_use_json_parse_error_event(
2113 &mut self,
2114 tool_use_id: LanguageModelToolUseId,
2115 tool_name: Arc<str>,
2116 raw_input: Arc<str>,
2117 json_parse_error: String,
2118 ) -> LanguageModelToolResult {
2119 let tool_output = format!("Error parsing input JSON: {json_parse_error}");
2120 LanguageModelToolResult {
2121 tool_use_id,
2122 tool_name,
2123 is_error: true,
2124 content: LanguageModelToolResultContent::Text(tool_output.into()),
2125 output: Some(serde_json::Value::String(raw_input.to_string())),
2126 }
2127 }
2128
2129 pub fn title(&self) -> SharedString {
2130 self.title.clone().unwrap_or("New Thread".into())
2131 }
2132
2133 pub fn is_generating_summary(&self) -> bool {
2134 self.pending_summary_generation.is_some()
2135 }
2136
2137 pub fn is_generating_title(&self) -> bool {
2138 self.pending_title_generation.is_some()
2139 }
2140
2141 pub fn summary(&mut self, cx: &mut Context<Self>) -> Shared<Task<Option<SharedString>>> {
2142 if let Some(summary) = self.summary.as_ref() {
2143 return Task::ready(Some(summary.clone())).shared();
2144 }
2145 if let Some(task) = self.pending_summary_generation.clone() {
2146 return task;
2147 }
2148 let Some(model) = self.summarization_model.clone() else {
2149 log::error!("No summarization model available");
2150 return Task::ready(None).shared();
2151 };
2152 let mut request = LanguageModelRequest {
2153 intent: Some(CompletionIntent::ThreadContextSummarization),
2154 temperature: AgentSettings::temperature_for_model(&model, cx),
2155 ..Default::default()
2156 };
2157
2158 for message in &self.messages {
2159 request.messages.extend(message.to_request());
2160 }
2161
2162 request.messages.push(LanguageModelRequestMessage {
2163 role: Role::User,
2164 content: vec![SUMMARIZE_THREAD_DETAILED_PROMPT.into()],
2165 cache: false,
2166 reasoning_details: None,
2167 });
2168
2169 let task = cx
2170 .spawn(async move |this, cx| {
2171 let mut summary = String::new();
2172 let mut messages = model.stream_completion(request, cx).await.log_err()?;
2173 while let Some(event) = messages.next().await {
2174 let event = event.log_err()?;
2175 let text = match event {
2176 LanguageModelCompletionEvent::Text(text) => text,
2177 _ => continue,
2178 };
2179
2180 let mut lines = text.lines();
2181 summary.extend(lines.next());
2182 }
2183
2184 log::debug!("Setting summary: {}", summary);
2185 let summary = SharedString::from(summary);
2186
2187 this.update(cx, |this, cx| {
2188 this.summary = Some(summary.clone());
2189 this.pending_summary_generation = None;
2190 cx.notify()
2191 })
2192 .ok()?;
2193
2194 Some(summary)
2195 })
2196 .shared();
2197 self.pending_summary_generation = Some(task.clone());
2198 task
2199 }
2200
2201 pub fn generate_title(&mut self, cx: &mut Context<Self>) {
2202 let Some(model) = self.summarization_model.clone() else {
2203 return;
2204 };
2205
2206 log::debug!(
2207 "Generating title with model: {:?}",
2208 self.summarization_model.as_ref().map(|model| model.name())
2209 );
2210 let mut request = LanguageModelRequest {
2211 intent: Some(CompletionIntent::ThreadSummarization),
2212 temperature: AgentSettings::temperature_for_model(&model, cx),
2213 ..Default::default()
2214 };
2215
2216 for message in &self.messages {
2217 request.messages.extend(message.to_request());
2218 }
2219
2220 request.messages.push(LanguageModelRequestMessage {
2221 role: Role::User,
2222 content: vec![SUMMARIZE_THREAD_PROMPT.into()],
2223 cache: false,
2224 reasoning_details: None,
2225 });
2226 self.pending_title_generation = Some(cx.spawn(async move |this, cx| {
2227 let mut title = String::new();
2228
2229 let generate = async {
2230 let mut messages = model.stream_completion(request, cx).await?;
2231 while let Some(event) = messages.next().await {
2232 let event = event?;
2233 let text = match event {
2234 LanguageModelCompletionEvent::Text(text) => text,
2235 _ => continue,
2236 };
2237
2238 let mut lines = text.lines();
2239 title.extend(lines.next());
2240
2241 // Stop if the LLM generated multiple lines.
2242 if lines.next().is_some() {
2243 break;
2244 }
2245 }
2246 anyhow::Ok(())
2247 };
2248
2249 if generate.await.context("failed to generate title").is_ok() {
2250 _ = this.update(cx, |this, cx| this.set_title(title.into(), cx));
2251 }
2252 _ = this.update(cx, |this, _| this.pending_title_generation = None);
2253 }));
2254 }
2255
2256 pub fn set_title(&mut self, title: SharedString, cx: &mut Context<Self>) {
2257 self.pending_title_generation = None;
2258 if Some(&title) != self.title.as_ref() {
2259 self.title = Some(title);
2260 cx.emit(TitleUpdated);
2261 cx.notify();
2262 }
2263 }
2264
2265 fn clear_summary(&mut self) {
2266 self.summary = None;
2267 self.pending_summary_generation = None;
2268 }
2269
2270 fn last_user_message(&self) -> Option<&UserMessage> {
2271 self.messages
2272 .iter()
2273 .rev()
2274 .find_map(|message| match message {
2275 Message::User(user_message) => Some(user_message),
2276 Message::Agent(_) => None,
2277 Message::Resume => None,
2278 })
2279 }
2280
2281 fn pending_message(&mut self) -> &mut AgentMessage {
2282 self.pending_message.get_or_insert_default()
2283 }
2284
2285 fn flush_pending_message(&mut self, cx: &mut Context<Self>) {
2286 let Some(mut message) = self.pending_message.take() else {
2287 return;
2288 };
2289
2290 if message.content.is_empty() {
2291 return;
2292 }
2293
2294 for content in &message.content {
2295 let AgentMessageContent::ToolUse(tool_use) = content else {
2296 continue;
2297 };
2298
2299 if !message.tool_results.contains_key(&tool_use.id) {
2300 message.tool_results.insert(
2301 tool_use.id.clone(),
2302 LanguageModelToolResult {
2303 tool_use_id: tool_use.id.clone(),
2304 tool_name: tool_use.name.clone(),
2305 is_error: true,
2306 content: LanguageModelToolResultContent::Text(TOOL_CANCELED_MESSAGE.into()),
2307 output: None,
2308 },
2309 );
2310 }
2311 }
2312
2313 self.messages.push(Message::Agent(message));
2314 self.updated_at = Utc::now();
2315 self.clear_summary();
2316 cx.notify()
2317 }
2318
2319 pub(crate) fn build_completion_request(
2320 &self,
2321 completion_intent: CompletionIntent,
2322 cx: &App,
2323 ) -> Result<LanguageModelRequest> {
2324 let model = self.model().context("No language model configured")?;
2325 let tools = if let Some(turn) = self.running_turn.as_ref() {
2326 turn.tools
2327 .iter()
2328 .filter_map(|(tool_name, tool)| {
2329 log::trace!("Including tool: {}", tool_name);
2330 Some(LanguageModelRequestTool {
2331 name: tool_name.to_string(),
2332 description: tool.description().to_string(),
2333 input_schema: tool.input_schema(model.tool_input_format()).log_err()?,
2334 })
2335 })
2336 .collect::<Vec<_>>()
2337 } else {
2338 Vec::new()
2339 };
2340
2341 log::debug!("Building completion request");
2342 log::debug!("Completion intent: {:?}", completion_intent);
2343
2344 let available_tools: Vec<_> = self
2345 .running_turn
2346 .as_ref()
2347 .map(|turn| turn.tools.keys().cloned().collect())
2348 .unwrap_or_default();
2349
2350 log::debug!("Request includes {} tools", available_tools.len());
2351 let messages = self.build_request_messages(available_tools, cx);
2352 log::debug!("Request will include {} messages", messages.len());
2353
2354 let request = LanguageModelRequest {
2355 thread_id: Some(self.id.to_string()),
2356 prompt_id: Some(self.prompt_id.to_string()),
2357 intent: Some(completion_intent),
2358 messages,
2359 tools,
2360 tool_choice: None,
2361 stop: Vec::new(),
2362 temperature: AgentSettings::temperature_for_model(model, cx),
2363 thinking_allowed: self.thinking_enabled,
2364 thinking_effort: self.thinking_effort.clone(),
2365 };
2366
2367 log::debug!("Completion request built successfully");
2368 Ok(request)
2369 }
2370
2371 fn enabled_tools(
2372 &self,
2373 profile: &AgentProfileSettings,
2374 model: &Arc<dyn LanguageModel>,
2375 cx: &App,
2376 ) -> BTreeMap<SharedString, Arc<dyn AnyAgentTool>> {
2377 fn truncate(tool_name: &SharedString) -> SharedString {
2378 if tool_name.len() > MAX_TOOL_NAME_LENGTH {
2379 let mut truncated = tool_name.to_string();
2380 truncated.truncate(MAX_TOOL_NAME_LENGTH);
2381 truncated.into()
2382 } else {
2383 tool_name.clone()
2384 }
2385 }
2386
2387 let use_streaming_edit_tool = false;
2388
2389 let mut tools = self
2390 .tools
2391 .iter()
2392 .filter_map(|(tool_name, tool)| {
2393 // For streaming_edit_file, check profile against "edit_file" since that's what users configure
2394 let profile_tool_name = if tool_name == StreamingEditFileTool::NAME {
2395 EditFileTool::NAME
2396 } else {
2397 tool_name.as_ref()
2398 };
2399
2400 if tool.supports_provider(&model.provider_id())
2401 && profile.is_tool_enabled(profile_tool_name)
2402 {
2403 match (tool_name.as_ref(), use_streaming_edit_tool) {
2404 (StreamingEditFileTool::NAME, false) | (EditFileTool::NAME, true) => None,
2405 (StreamingEditFileTool::NAME, true) => {
2406 // Expose streaming tool as "edit_file"
2407 Some((SharedString::from(EditFileTool::NAME), tool.clone()))
2408 }
2409 _ => Some((truncate(tool_name), tool.clone())),
2410 }
2411 } else {
2412 None
2413 }
2414 })
2415 .collect::<BTreeMap<_, _>>();
2416
2417 let mut context_server_tools = Vec::new();
2418 let mut seen_tools = tools.keys().cloned().collect::<HashSet<_>>();
2419 let mut duplicate_tool_names = HashSet::default();
2420 for (server_id, server_tools) in self.context_server_registry.read(cx).servers() {
2421 for (tool_name, tool) in server_tools {
2422 if profile.is_context_server_tool_enabled(&server_id.0, &tool_name) {
2423 let tool_name = truncate(tool_name);
2424 if !seen_tools.insert(tool_name.clone()) {
2425 duplicate_tool_names.insert(tool_name.clone());
2426 }
2427 context_server_tools.push((server_id.clone(), tool_name, tool.clone()));
2428 }
2429 }
2430 }
2431
2432 // When there are duplicate tool names, disambiguate by prefixing them
2433 // with the server ID. In the rare case there isn't enough space for the
2434 // disambiguated tool name, keep only the last tool with this name.
2435 for (server_id, tool_name, tool) in context_server_tools {
2436 if duplicate_tool_names.contains(&tool_name) {
2437 let available = MAX_TOOL_NAME_LENGTH.saturating_sub(tool_name.len());
2438 if available >= 2 {
2439 let mut disambiguated = server_id.0.to_string();
2440 disambiguated.truncate(available - 1);
2441 disambiguated.push('_');
2442 disambiguated.push_str(&tool_name);
2443 tools.insert(disambiguated.into(), tool.clone());
2444 } else {
2445 tools.insert(tool_name, tool.clone());
2446 }
2447 } else {
2448 tools.insert(tool_name, tool.clone());
2449 }
2450 }
2451
2452 tools
2453 }
2454
2455 fn tool(&self, name: &str) -> Option<Arc<dyn AnyAgentTool>> {
2456 self.running_turn.as_ref()?.tools.get(name).cloned()
2457 }
2458
2459 pub fn has_tool(&self, name: &str) -> bool {
2460 self.running_turn
2461 .as_ref()
2462 .is_some_and(|turn| turn.tools.contains_key(name))
2463 }
2464
2465 #[cfg(any(test, feature = "test-support"))]
2466 pub fn has_registered_tool(&self, name: &str) -> bool {
2467 self.tools.contains_key(name)
2468 }
2469
2470 pub fn registered_tool_names(&self) -> Vec<SharedString> {
2471 self.tools.keys().cloned().collect()
2472 }
2473
2474 pub fn register_running_subagent(&mut self, subagent: WeakEntity<Thread>) {
2475 self.running_subagents.push(subagent);
2476 }
2477
2478 pub fn unregister_running_subagent(&mut self, subagent: &WeakEntity<Thread>) {
2479 self.running_subagents
2480 .retain(|s| s.entity_id() != subagent.entity_id());
2481 }
2482
2483 pub fn running_subagent_count(&self) -> usize {
2484 self.running_subagents
2485 .iter()
2486 .filter(|s| s.upgrade().is_some())
2487 .count()
2488 }
2489
2490 pub fn is_subagent(&self) -> bool {
2491 self.subagent_context.is_some()
2492 }
2493
2494 pub fn depth(&self) -> u8 {
2495 self.subagent_context.as_ref().map(|c| c.depth).unwrap_or(0)
2496 }
2497
2498 pub fn is_turn_complete(&self) -> bool {
2499 self.running_turn.is_none()
2500 }
2501
2502 pub fn submit_user_message(
2503 &mut self,
2504 content: impl Into<String>,
2505 cx: &mut Context<Self>,
2506 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
2507 let content = content.into();
2508 self.messages.push(Message::User(UserMessage {
2509 id: UserMessageId::new(),
2510 content: vec![UserMessageContent::Text(content)],
2511 }));
2512 cx.notify();
2513 self.send_existing(cx)
2514 }
2515
2516 pub fn interrupt_for_summary(
2517 &mut self,
2518 cx: &mut Context<Self>,
2519 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
2520 let context = self
2521 .subagent_context
2522 .as_ref()
2523 .context("Not a subagent thread")?;
2524 let prompt = context.context_low_prompt.clone();
2525 self.cancel(cx).detach();
2526 self.submit_user_message(prompt, cx)
2527 }
2528
2529 pub fn request_final_summary(
2530 &mut self,
2531 cx: &mut Context<Self>,
2532 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
2533 let context = self
2534 .subagent_context
2535 .as_ref()
2536 .context("Not a subagent thread")?;
2537 let prompt = context.summary_prompt.clone();
2538 self.submit_user_message(prompt, cx)
2539 }
2540
2541 fn build_request_messages(
2542 &self,
2543 available_tools: Vec<SharedString>,
2544 cx: &App,
2545 ) -> Vec<LanguageModelRequestMessage> {
2546 log::trace!(
2547 "Building request messages from {} thread messages",
2548 self.messages.len()
2549 );
2550
2551 let system_prompt = SystemPromptTemplate {
2552 project: self.project_context.read(cx),
2553 available_tools,
2554 model_name: self.model.as_ref().map(|m| m.name().0.to_string()),
2555 }
2556 .render(&self.templates)
2557 .context("failed to build system prompt")
2558 .expect("Invalid template");
2559 let mut messages = vec![LanguageModelRequestMessage {
2560 role: Role::System,
2561 content: vec![system_prompt.into()],
2562 cache: false,
2563 reasoning_details: None,
2564 }];
2565 for message in &self.messages {
2566 messages.extend(message.to_request());
2567 }
2568
2569 if let Some(last_message) = messages.last_mut() {
2570 last_message.cache = true;
2571 }
2572
2573 if let Some(message) = self.pending_message.as_ref() {
2574 messages.extend(message.to_request());
2575 }
2576
2577 messages
2578 }
2579
2580 pub fn to_markdown(&self) -> String {
2581 let mut markdown = String::new();
2582 for (ix, message) in self.messages.iter().enumerate() {
2583 if ix > 0 {
2584 markdown.push('\n');
2585 }
2586 markdown.push_str(&message.to_markdown());
2587 }
2588
2589 if let Some(message) = self.pending_message.as_ref() {
2590 markdown.push('\n');
2591 markdown.push_str(&message.to_markdown());
2592 }
2593
2594 markdown
2595 }
2596
2597 fn advance_prompt_id(&mut self) {
2598 self.prompt_id = PromptId::new();
2599 }
2600
2601 fn retry_strategy_for(error: &LanguageModelCompletionError) -> Option<RetryStrategy> {
2602 use LanguageModelCompletionError::*;
2603 use http_client::StatusCode;
2604
2605 // General strategy here:
2606 // - If retrying won't help (e.g. invalid API key or payload too large), return None so we don't retry at all.
2607 // - If it's a time-based issue (e.g. server overloaded, rate limit exceeded), retry up to 4 times with exponential backoff.
2608 // - If it's an issue that *might* be fixed by retrying (e.g. internal server error), retry up to 3 times.
2609 match error {
2610 HttpResponseError {
2611 status_code: StatusCode::TOO_MANY_REQUESTS,
2612 ..
2613 } => Some(RetryStrategy::ExponentialBackoff {
2614 initial_delay: BASE_RETRY_DELAY,
2615 max_attempts: MAX_RETRY_ATTEMPTS,
2616 }),
2617 ServerOverloaded { retry_after, .. } | RateLimitExceeded { retry_after, .. } => {
2618 Some(RetryStrategy::Fixed {
2619 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2620 max_attempts: MAX_RETRY_ATTEMPTS,
2621 })
2622 }
2623 UpstreamProviderError {
2624 status,
2625 retry_after,
2626 ..
2627 } => match *status {
2628 StatusCode::TOO_MANY_REQUESTS | StatusCode::SERVICE_UNAVAILABLE => {
2629 Some(RetryStrategy::Fixed {
2630 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2631 max_attempts: MAX_RETRY_ATTEMPTS,
2632 })
2633 }
2634 StatusCode::INTERNAL_SERVER_ERROR => Some(RetryStrategy::Fixed {
2635 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2636 // Internal Server Error could be anything, retry up to 3 times.
2637 max_attempts: 3,
2638 }),
2639 status => {
2640 // There is no StatusCode variant for the unofficial HTTP 529 ("The service is overloaded"),
2641 // but we frequently get them in practice. See https://http.dev/529
2642 if status.as_u16() == 529 {
2643 Some(RetryStrategy::Fixed {
2644 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2645 max_attempts: MAX_RETRY_ATTEMPTS,
2646 })
2647 } else {
2648 Some(RetryStrategy::Fixed {
2649 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2650 max_attempts: 2,
2651 })
2652 }
2653 }
2654 },
2655 ApiInternalServerError { .. } => Some(RetryStrategy::Fixed {
2656 delay: BASE_RETRY_DELAY,
2657 max_attempts: 3,
2658 }),
2659 ApiReadResponseError { .. }
2660 | HttpSend { .. }
2661 | DeserializeResponse { .. }
2662 | BadRequestFormat { .. } => Some(RetryStrategy::Fixed {
2663 delay: BASE_RETRY_DELAY,
2664 max_attempts: 3,
2665 }),
2666 // Retrying these errors definitely shouldn't help.
2667 HttpResponseError {
2668 status_code:
2669 StatusCode::PAYLOAD_TOO_LARGE | StatusCode::FORBIDDEN | StatusCode::UNAUTHORIZED,
2670 ..
2671 }
2672 | AuthenticationError { .. }
2673 | PermissionError { .. }
2674 | NoApiKey { .. }
2675 | ApiEndpointNotFound { .. }
2676 | PromptTooLarge { .. } => None,
2677 // These errors might be transient, so retry them
2678 SerializeRequest { .. } | BuildRequestBody { .. } => Some(RetryStrategy::Fixed {
2679 delay: BASE_RETRY_DELAY,
2680 max_attempts: 1,
2681 }),
2682 // Retry all other 4xx and 5xx errors once.
2683 HttpResponseError { status_code, .. }
2684 if status_code.is_client_error() || status_code.is_server_error() =>
2685 {
2686 Some(RetryStrategy::Fixed {
2687 delay: BASE_RETRY_DELAY,
2688 max_attempts: 3,
2689 })
2690 }
2691 Other(err) if err.is::<language_model::PaymentRequiredError>() => {
2692 // Retrying won't help for Payment Required errors.
2693 None
2694 }
2695 // Conservatively assume that any other errors are non-retryable
2696 HttpResponseError { .. } | Other(..) => Some(RetryStrategy::Fixed {
2697 delay: BASE_RETRY_DELAY,
2698 max_attempts: 2,
2699 }),
2700 }
2701 }
2702}
2703
2704struct RunningTurn {
2705 /// Holds the task that handles agent interaction until the end of the turn.
2706 /// Survives across multiple requests as the model performs tool calls and
2707 /// we run tools, report their results.
2708 _task: Task<()>,
2709 /// The current event stream for the running turn. Used to report a final
2710 /// cancellation event if we cancel the turn.
2711 event_stream: ThreadEventStream,
2712 /// The tools that were enabled for this turn.
2713 tools: BTreeMap<SharedString, Arc<dyn AnyAgentTool>>,
2714 /// Sender to signal tool cancellation. When cancel is called, this is
2715 /// set to true so all tools can detect user-initiated cancellation.
2716 cancellation_tx: watch::Sender<bool>,
2717}
2718
2719impl RunningTurn {
2720 fn cancel(mut self) -> Task<()> {
2721 log::debug!("Cancelling in progress turn");
2722 self.cancellation_tx.send(true).ok();
2723 self.event_stream.send_canceled();
2724 self._task
2725 }
2726}
2727
2728pub struct TokenUsageUpdated(pub Option<acp_thread::TokenUsage>);
2729
2730impl EventEmitter<TokenUsageUpdated> for Thread {}
2731
2732pub struct TitleUpdated;
2733
2734impl EventEmitter<TitleUpdated> for Thread {}
2735
2736pub trait AgentTool
2737where
2738 Self: 'static + Sized,
2739{
2740 type Input: for<'de> Deserialize<'de> + Serialize + JsonSchema;
2741 type Output: for<'de> Deserialize<'de> + Serialize + Into<LanguageModelToolResultContent>;
2742
2743 const NAME: &'static str;
2744
2745 fn description() -> SharedString {
2746 let schema = schemars::schema_for!(Self::Input);
2747 SharedString::new(
2748 schema
2749 .get("description")
2750 .and_then(|description| description.as_str())
2751 .unwrap_or_default(),
2752 )
2753 }
2754
2755 fn kind() -> acp::ToolKind;
2756
2757 /// The initial tool title to display. Can be updated during the tool run.
2758 fn initial_title(
2759 &self,
2760 input: Result<Self::Input, serde_json::Value>,
2761 cx: &mut App,
2762 ) -> SharedString;
2763
2764 /// Returns the JSON schema that describes the tool's input.
2765 fn input_schema(format: LanguageModelToolSchemaFormat) -> Schema {
2766 language_model::tool_schema::root_schema_for::<Self::Input>(format)
2767 }
2768
2769 /// Some tools rely on a provider for the underlying billing or other reasons.
2770 /// Allow the tool to check if they are compatible, or should be filtered out.
2771 fn supports_provider(_provider: &LanguageModelProviderId) -> bool {
2772 true
2773 }
2774
2775 /// Runs the tool with the provided input.
2776 fn run(
2777 self: Arc<Self>,
2778 input: Self::Input,
2779 event_stream: ToolCallEventStream,
2780 cx: &mut App,
2781 ) -> Task<Result<Self::Output>>;
2782
2783 /// Emits events for a previous execution of the tool.
2784 fn replay(
2785 &self,
2786 _input: Self::Input,
2787 _output: Self::Output,
2788 _event_stream: ToolCallEventStream,
2789 _cx: &mut App,
2790 ) -> Result<()> {
2791 Ok(())
2792 }
2793
2794 fn erase(self) -> Arc<dyn AnyAgentTool> {
2795 Arc::new(Erased(Arc::new(self)))
2796 }
2797
2798 /// Create a new instance of this tool bound to a different thread.
2799 /// This is used when creating subagents, so that tools like EditFileTool
2800 /// that hold a thread reference will use the subagent's thread instead
2801 /// of the parent's thread.
2802 /// Returns None if the tool doesn't need rebinding (most tools).
2803 fn rebind_thread(&self, _new_thread: WeakEntity<Thread>) -> Option<Arc<dyn AnyAgentTool>> {
2804 None
2805 }
2806}
2807
2808pub struct Erased<T>(T);
2809
2810pub struct AgentToolOutput {
2811 pub llm_output: LanguageModelToolResultContent,
2812 pub raw_output: serde_json::Value,
2813}
2814
2815pub trait AnyAgentTool {
2816 fn name(&self) -> SharedString;
2817 fn description(&self) -> SharedString;
2818 fn kind(&self) -> acp::ToolKind;
2819 fn initial_title(&self, input: serde_json::Value, _cx: &mut App) -> SharedString;
2820 fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value>;
2821 fn supports_provider(&self, _provider: &LanguageModelProviderId) -> bool {
2822 true
2823 }
2824 fn run(
2825 self: Arc<Self>,
2826 input: serde_json::Value,
2827 event_stream: ToolCallEventStream,
2828 cx: &mut App,
2829 ) -> Task<Result<AgentToolOutput>>;
2830 fn replay(
2831 &self,
2832 input: serde_json::Value,
2833 output: serde_json::Value,
2834 event_stream: ToolCallEventStream,
2835 cx: &mut App,
2836 ) -> Result<()>;
2837 /// Create a new instance of this tool bound to a different thread.
2838 /// This is used when creating subagents, so that tools like EditFileTool
2839 /// that hold a thread reference will use the subagent's thread instead
2840 /// of the parent's thread.
2841 /// Returns None if the tool doesn't need rebinding (most tools).
2842 fn rebind_thread(&self, _new_thread: WeakEntity<Thread>) -> Option<Arc<dyn AnyAgentTool>> {
2843 None
2844 }
2845}
2846
2847impl<T> AnyAgentTool for Erased<Arc<T>>
2848where
2849 T: AgentTool,
2850{
2851 fn name(&self) -> SharedString {
2852 T::NAME.into()
2853 }
2854
2855 fn description(&self) -> SharedString {
2856 T::description()
2857 }
2858
2859 fn kind(&self) -> agent_client_protocol::ToolKind {
2860 T::kind()
2861 }
2862
2863 fn initial_title(&self, input: serde_json::Value, _cx: &mut App) -> SharedString {
2864 let parsed_input = serde_json::from_value(input.clone()).map_err(|_| input);
2865 self.0.initial_title(parsed_input, _cx)
2866 }
2867
2868 fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
2869 let mut json = serde_json::to_value(T::input_schema(format))?;
2870 language_model::tool_schema::adapt_schema_to_format(&mut json, format)?;
2871 Ok(json)
2872 }
2873
2874 fn supports_provider(&self, provider: &LanguageModelProviderId) -> bool {
2875 T::supports_provider(provider)
2876 }
2877
2878 fn run(
2879 self: Arc<Self>,
2880 input: serde_json::Value,
2881 event_stream: ToolCallEventStream,
2882 cx: &mut App,
2883 ) -> Task<Result<AgentToolOutput>> {
2884 cx.spawn(async move |cx| {
2885 let input = serde_json::from_value(input)?;
2886 let output = cx
2887 .update(|cx| self.0.clone().run(input, event_stream, cx))
2888 .await?;
2889 let raw_output = serde_json::to_value(&output)?;
2890 Ok(AgentToolOutput {
2891 llm_output: output.into(),
2892 raw_output,
2893 })
2894 })
2895 }
2896
2897 fn replay(
2898 &self,
2899 input: serde_json::Value,
2900 output: serde_json::Value,
2901 event_stream: ToolCallEventStream,
2902 cx: &mut App,
2903 ) -> Result<()> {
2904 let input = serde_json::from_value(input)?;
2905 let output = serde_json::from_value(output)?;
2906 self.0.replay(input, output, event_stream, cx)
2907 }
2908
2909 fn rebind_thread(&self, new_thread: WeakEntity<Thread>) -> Option<Arc<dyn AnyAgentTool>> {
2910 self.0.rebind_thread(new_thread)
2911 }
2912}
2913
2914#[derive(Clone)]
2915struct ThreadEventStream(mpsc::UnboundedSender<Result<ThreadEvent>>);
2916
2917impl ThreadEventStream {
2918 fn send_user_message(&self, message: &UserMessage) {
2919 self.0
2920 .unbounded_send(Ok(ThreadEvent::UserMessage(message.clone())))
2921 .ok();
2922 }
2923
2924 fn send_text(&self, text: &str) {
2925 self.0
2926 .unbounded_send(Ok(ThreadEvent::AgentText(text.to_string())))
2927 .ok();
2928 }
2929
2930 fn send_thinking(&self, text: &str) {
2931 self.0
2932 .unbounded_send(Ok(ThreadEvent::AgentThinking(text.to_string())))
2933 .ok();
2934 }
2935
2936 fn send_tool_call(
2937 &self,
2938 id: &LanguageModelToolUseId,
2939 tool_name: &str,
2940 title: SharedString,
2941 kind: acp::ToolKind,
2942 input: serde_json::Value,
2943 ) {
2944 self.0
2945 .unbounded_send(Ok(ThreadEvent::ToolCall(Self::initial_tool_call(
2946 id,
2947 tool_name,
2948 title.to_string(),
2949 kind,
2950 input,
2951 ))))
2952 .ok();
2953 }
2954
2955 fn initial_tool_call(
2956 id: &LanguageModelToolUseId,
2957 tool_name: &str,
2958 title: String,
2959 kind: acp::ToolKind,
2960 input: serde_json::Value,
2961 ) -> acp::ToolCall {
2962 acp::ToolCall::new(id.to_string(), title)
2963 .kind(kind)
2964 .raw_input(input)
2965 .meta(acp_thread::meta_with_tool_name(tool_name))
2966 }
2967
2968 fn update_tool_call_fields(
2969 &self,
2970 tool_use_id: &LanguageModelToolUseId,
2971 fields: acp::ToolCallUpdateFields,
2972 ) {
2973 self.0
2974 .unbounded_send(Ok(ThreadEvent::ToolCallUpdate(
2975 acp::ToolCallUpdate::new(tool_use_id.to_string(), fields).into(),
2976 )))
2977 .ok();
2978 }
2979
2980 fn send_retry(&self, status: acp_thread::RetryStatus) {
2981 self.0.unbounded_send(Ok(ThreadEvent::Retry(status))).ok();
2982 }
2983
2984 fn send_stop(&self, reason: acp::StopReason) {
2985 self.0.unbounded_send(Ok(ThreadEvent::Stop(reason))).ok();
2986 }
2987
2988 fn send_canceled(&self) {
2989 self.0
2990 .unbounded_send(Ok(ThreadEvent::Stop(acp::StopReason::Cancelled)))
2991 .ok();
2992 }
2993
2994 fn send_error(&self, error: impl Into<anyhow::Error>) {
2995 self.0.unbounded_send(Err(error.into())).ok();
2996 }
2997}
2998
2999#[derive(Clone)]
3000pub struct ToolCallEventStream {
3001 tool_use_id: LanguageModelToolUseId,
3002 stream: ThreadEventStream,
3003 fs: Option<Arc<dyn Fs>>,
3004 cancellation_rx: watch::Receiver<bool>,
3005}
3006
3007impl ToolCallEventStream {
3008 #[cfg(any(test, feature = "test-support"))]
3009 pub fn test() -> (Self, ToolCallEventStreamReceiver) {
3010 let (stream, receiver, _cancellation_tx) = Self::test_with_cancellation();
3011 (stream, receiver)
3012 }
3013
3014 #[cfg(any(test, feature = "test-support"))]
3015 pub fn test_with_cancellation() -> (Self, ToolCallEventStreamReceiver, watch::Sender<bool>) {
3016 let (events_tx, events_rx) = mpsc::unbounded::<Result<ThreadEvent>>();
3017 let (cancellation_tx, cancellation_rx) = watch::channel(false);
3018
3019 let stream = ToolCallEventStream::new(
3020 "test_id".into(),
3021 ThreadEventStream(events_tx),
3022 None,
3023 cancellation_rx,
3024 );
3025
3026 (
3027 stream,
3028 ToolCallEventStreamReceiver(events_rx),
3029 cancellation_tx,
3030 )
3031 }
3032
3033 /// Signal cancellation for this event stream. Only available in tests.
3034 #[cfg(any(test, feature = "test-support"))]
3035 pub fn signal_cancellation_with_sender(cancellation_tx: &mut watch::Sender<bool>) {
3036 cancellation_tx.send(true).ok();
3037 }
3038
3039 fn new(
3040 tool_use_id: LanguageModelToolUseId,
3041 stream: ThreadEventStream,
3042 fs: Option<Arc<dyn Fs>>,
3043 cancellation_rx: watch::Receiver<bool>,
3044 ) -> Self {
3045 Self {
3046 tool_use_id,
3047 stream,
3048 fs,
3049 cancellation_rx,
3050 }
3051 }
3052
3053 /// Returns a future that resolves when the user cancels the tool call.
3054 /// Tools should select on this alongside their main work to detect user cancellation.
3055 pub fn cancelled_by_user(&self) -> impl std::future::Future<Output = ()> + '_ {
3056 let mut rx = self.cancellation_rx.clone();
3057 async move {
3058 loop {
3059 if *rx.borrow() {
3060 return;
3061 }
3062 if rx.changed().await.is_err() {
3063 // Sender dropped, will never be cancelled
3064 std::future::pending::<()>().await;
3065 }
3066 }
3067 }
3068 }
3069
3070 /// Returns true if the user has cancelled this tool call.
3071 /// This is useful for checking cancellation state after an operation completes,
3072 /// to determine if the completion was due to user cancellation.
3073 pub fn was_cancelled_by_user(&self) -> bool {
3074 *self.cancellation_rx.clone().borrow()
3075 }
3076
3077 pub fn tool_use_id(&self) -> &LanguageModelToolUseId {
3078 &self.tool_use_id
3079 }
3080
3081 pub fn update_fields(&self, fields: acp::ToolCallUpdateFields) {
3082 self.stream
3083 .update_tool_call_fields(&self.tool_use_id, fields);
3084 }
3085
3086 pub fn update_diff(&self, diff: Entity<acp_thread::Diff>) {
3087 self.stream
3088 .0
3089 .unbounded_send(Ok(ThreadEvent::ToolCallUpdate(
3090 acp_thread::ToolCallUpdateDiff {
3091 id: acp::ToolCallId::new(self.tool_use_id.to_string()),
3092 diff,
3093 }
3094 .into(),
3095 )))
3096 .ok();
3097 }
3098
3099 pub fn update_subagent_thread(&self, thread: Entity<acp_thread::AcpThread>) {
3100 self.stream
3101 .0
3102 .unbounded_send(Ok(ThreadEvent::ToolCallUpdate(
3103 acp_thread::ToolCallUpdateSubagentThread {
3104 id: acp::ToolCallId::new(self.tool_use_id.to_string()),
3105 thread,
3106 }
3107 .into(),
3108 )))
3109 .ok();
3110 }
3111
3112 /// Authorize a third-party tool (e.g., MCP tool from a context server).
3113 ///
3114 /// Unlike built-in tools, third-party tools don't support pattern-based permissions.
3115 /// They only support `default_mode` (allow/deny/confirm) per tool.
3116 ///
3117 /// Uses the dropdown authorization flow with two granularities:
3118 /// - "Always for <display_name> MCP tool" → sets `tools.<tool_id>.default_mode = "allow"` or "deny"
3119 /// - "Only this time" → allow/deny once
3120 pub fn authorize_third_party_tool(
3121 &self,
3122 title: impl Into<String>,
3123 tool_id: String,
3124 display_name: String,
3125 cx: &mut App,
3126 ) -> Task<Result<()>> {
3127 let settings = agent_settings::AgentSettings::get_global(cx);
3128
3129 let decision = decide_permission_from_settings(&tool_id, "", &settings);
3130
3131 match decision {
3132 ToolPermissionDecision::Allow => return Task::ready(Ok(())),
3133 ToolPermissionDecision::Deny(reason) => return Task::ready(Err(anyhow!(reason))),
3134 ToolPermissionDecision::Confirm => {}
3135 }
3136
3137 let (response_tx, response_rx) = oneshot::channel();
3138 if let Err(error) = self
3139 .stream
3140 .0
3141 .unbounded_send(Ok(ThreadEvent::ToolCallAuthorization(
3142 ToolCallAuthorization {
3143 tool_call: acp::ToolCallUpdate::new(
3144 self.tool_use_id.to_string(),
3145 acp::ToolCallUpdateFields::new().title(title.into()),
3146 ),
3147 options: acp_thread::PermissionOptions::Dropdown(vec![
3148 acp_thread::PermissionOptionChoice {
3149 allow: acp::PermissionOption::new(
3150 acp::PermissionOptionId::new(format!(
3151 "always_allow_mcp:{}",
3152 tool_id
3153 )),
3154 format!("Always for {} MCP tool", display_name),
3155 acp::PermissionOptionKind::AllowAlways,
3156 ),
3157 deny: acp::PermissionOption::new(
3158 acp::PermissionOptionId::new(format!(
3159 "always_deny_mcp:{}",
3160 tool_id
3161 )),
3162 format!("Always for {} MCP tool", display_name),
3163 acp::PermissionOptionKind::RejectAlways,
3164 ),
3165 },
3166 acp_thread::PermissionOptionChoice {
3167 allow: acp::PermissionOption::new(
3168 acp::PermissionOptionId::new("allow"),
3169 "Only this time",
3170 acp::PermissionOptionKind::AllowOnce,
3171 ),
3172 deny: acp::PermissionOption::new(
3173 acp::PermissionOptionId::new("deny"),
3174 "Only this time",
3175 acp::PermissionOptionKind::RejectOnce,
3176 ),
3177 },
3178 ]),
3179 response: response_tx,
3180 context: None,
3181 },
3182 )))
3183 {
3184 log::error!("Failed to send tool call authorization: {error}");
3185 return Task::ready(Err(anyhow!(
3186 "Failed to send tool call authorization: {error}"
3187 )));
3188 }
3189
3190 let fs = self.fs.clone();
3191 cx.spawn(async move |cx| {
3192 let response_str = response_rx.await?.0.to_string();
3193
3194 if response_str == format!("always_allow_mcp:{}", tool_id) {
3195 if let Some(fs) = fs.clone() {
3196 cx.update(|cx| {
3197 update_settings_file(fs, cx, move |settings, _| {
3198 settings
3199 .agent
3200 .get_or_insert_default()
3201 .set_tool_default_mode(&tool_id, ToolPermissionMode::Allow);
3202 });
3203 });
3204 }
3205 return Ok(());
3206 }
3207 if response_str == format!("always_deny_mcp:{}", tool_id) {
3208 if let Some(fs) = fs.clone() {
3209 cx.update(|cx| {
3210 update_settings_file(fs, cx, move |settings, _| {
3211 settings
3212 .agent
3213 .get_or_insert_default()
3214 .set_tool_default_mode(&tool_id, ToolPermissionMode::Deny);
3215 });
3216 });
3217 }
3218 return Err(anyhow!("Permission to run tool denied by user"));
3219 }
3220
3221 if response_str == "allow" {
3222 return Ok(());
3223 }
3224
3225 Err(anyhow!("Permission to run tool denied by user"))
3226 })
3227 }
3228
3229 pub fn authorize(
3230 &self,
3231 title: impl Into<String>,
3232 context: ToolPermissionContext,
3233 cx: &mut App,
3234 ) -> Task<Result<()>> {
3235 use settings::ToolPermissionMode;
3236
3237 let options = context.build_permission_options();
3238
3239 let (response_tx, response_rx) = oneshot::channel();
3240 if let Err(error) = self
3241 .stream
3242 .0
3243 .unbounded_send(Ok(ThreadEvent::ToolCallAuthorization(
3244 ToolCallAuthorization {
3245 tool_call: acp::ToolCallUpdate::new(
3246 self.tool_use_id.to_string(),
3247 acp::ToolCallUpdateFields::new().title(title.into()),
3248 ),
3249 options,
3250 response: response_tx,
3251 context: Some(context),
3252 },
3253 )))
3254 {
3255 log::error!("Failed to send tool call authorization: {error}");
3256 return Task::ready(Err(anyhow!(
3257 "Failed to send tool call authorization: {error}"
3258 )));
3259 }
3260
3261 let fs = self.fs.clone();
3262 cx.spawn(async move |cx| {
3263 let response_str = response_rx.await?.0.to_string();
3264
3265 // Handle "always allow tool" - e.g., "always_allow:terminal"
3266 if let Some(tool) = response_str.strip_prefix("always_allow:") {
3267 if let Some(fs) = fs.clone() {
3268 let tool = tool.to_string();
3269 cx.update(|cx| {
3270 update_settings_file(fs, cx, move |settings, _| {
3271 settings
3272 .agent
3273 .get_or_insert_default()
3274 .set_tool_default_mode(&tool, ToolPermissionMode::Allow);
3275 });
3276 });
3277 }
3278 return Ok(());
3279 }
3280
3281 // Handle "always deny tool" - e.g., "always_deny:terminal"
3282 if let Some(tool) = response_str.strip_prefix("always_deny:") {
3283 if let Some(fs) = fs.clone() {
3284 let tool = tool.to_string();
3285 cx.update(|cx| {
3286 update_settings_file(fs, cx, move |settings, _| {
3287 settings
3288 .agent
3289 .get_or_insert_default()
3290 .set_tool_default_mode(&tool, ToolPermissionMode::Deny);
3291 });
3292 });
3293 }
3294 return Err(anyhow!("Permission to run tool denied by user"));
3295 }
3296
3297 // Handle "always allow pattern" - e.g., "always_allow_pattern:mcp:server:tool\n^cargo\s"
3298 if let Some(rest) = response_str.strip_prefix("always_allow_pattern:") {
3299 if let Some((pattern_tool_name, pattern)) = rest.split_once('\n') {
3300 let pattern_tool_name = pattern_tool_name.to_string();
3301 let pattern = pattern.to_string();
3302 if let Some(fs) = fs.clone() {
3303 cx.update(|cx| {
3304 update_settings_file(fs, cx, move |settings, _| {
3305 settings
3306 .agent
3307 .get_or_insert_default()
3308 .add_tool_allow_pattern(&pattern_tool_name, pattern);
3309 });
3310 });
3311 }
3312 } else {
3313 log::error!("Failed to parse always allow pattern: missing newline separator in '{rest}'");
3314 }
3315 return Ok(());
3316 }
3317
3318 // Handle "always deny pattern" - e.g., "always_deny_pattern:mcp:server:tool\n^cargo\s"
3319 if let Some(rest) = response_str.strip_prefix("always_deny_pattern:") {
3320 if let Some((pattern_tool_name, pattern)) = rest.split_once('\n') {
3321 let pattern_tool_name = pattern_tool_name.to_string();
3322 let pattern = pattern.to_string();
3323 if let Some(fs) = fs.clone() {
3324 cx.update(|cx| {
3325 update_settings_file(fs, cx, move |settings, _| {
3326 settings
3327 .agent
3328 .get_or_insert_default()
3329 .add_tool_deny_pattern(&pattern_tool_name, pattern);
3330 });
3331 });
3332 }
3333 } else {
3334 log::error!("Failed to parse always deny pattern: missing newline separator in '{rest}'");
3335 }
3336 return Err(anyhow!("Permission to run tool denied by user"));
3337 }
3338
3339 // Handle simple "allow" (allow once)
3340 if response_str == "allow" {
3341 return Ok(());
3342 }
3343
3344 // Handle simple "deny" (deny once)
3345 Err(anyhow!("Permission to run tool denied by user"))
3346 })
3347 }
3348}
3349
3350#[cfg(any(test, feature = "test-support"))]
3351pub struct ToolCallEventStreamReceiver(mpsc::UnboundedReceiver<Result<ThreadEvent>>);
3352
3353#[cfg(any(test, feature = "test-support"))]
3354impl ToolCallEventStreamReceiver {
3355 pub async fn expect_authorization(&mut self) -> ToolCallAuthorization {
3356 let event = self.0.next().await;
3357 if let Some(Ok(ThreadEvent::ToolCallAuthorization(auth))) = event {
3358 auth
3359 } else {
3360 panic!("Expected ToolCallAuthorization but got: {:?}", event);
3361 }
3362 }
3363
3364 pub async fn expect_update_fields(&mut self) -> acp::ToolCallUpdateFields {
3365 let event = self.0.next().await;
3366 if let Some(Ok(ThreadEvent::ToolCallUpdate(acp_thread::ToolCallUpdate::UpdateFields(
3367 update,
3368 )))) = event
3369 {
3370 update.fields
3371 } else {
3372 panic!("Expected update fields but got: {:?}", event);
3373 }
3374 }
3375
3376 pub async fn expect_diff(&mut self) -> Entity<acp_thread::Diff> {
3377 let event = self.0.next().await;
3378 if let Some(Ok(ThreadEvent::ToolCallUpdate(acp_thread::ToolCallUpdate::UpdateDiff(
3379 update,
3380 )))) = event
3381 {
3382 update.diff
3383 } else {
3384 panic!("Expected diff but got: {:?}", event);
3385 }
3386 }
3387
3388 pub async fn expect_terminal(&mut self) -> Entity<acp_thread::Terminal> {
3389 let event = self.0.next().await;
3390 if let Some(Ok(ThreadEvent::ToolCallUpdate(acp_thread::ToolCallUpdate::UpdateTerminal(
3391 update,
3392 )))) = event
3393 {
3394 update.terminal
3395 } else {
3396 panic!("Expected terminal but got: {:?}", event);
3397 }
3398 }
3399}
3400
3401#[cfg(any(test, feature = "test-support"))]
3402impl std::ops::Deref for ToolCallEventStreamReceiver {
3403 type Target = mpsc::UnboundedReceiver<Result<ThreadEvent>>;
3404
3405 fn deref(&self) -> &Self::Target {
3406 &self.0
3407 }
3408}
3409
3410#[cfg(any(test, feature = "test-support"))]
3411impl std::ops::DerefMut for ToolCallEventStreamReceiver {
3412 fn deref_mut(&mut self) -> &mut Self::Target {
3413 &mut self.0
3414 }
3415}
3416
3417impl From<&str> for UserMessageContent {
3418 fn from(text: &str) -> Self {
3419 Self::Text(text.into())
3420 }
3421}
3422
3423impl UserMessageContent {
3424 pub fn from_content_block(value: acp::ContentBlock, path_style: PathStyle) -> Self {
3425 match value {
3426 acp::ContentBlock::Text(text_content) => Self::Text(text_content.text),
3427 acp::ContentBlock::Image(image_content) => Self::Image(convert_image(image_content)),
3428 acp::ContentBlock::Audio(_) => {
3429 // TODO
3430 Self::Text("[audio]".to_string())
3431 }
3432 acp::ContentBlock::ResourceLink(resource_link) => {
3433 match MentionUri::parse(&resource_link.uri, path_style) {
3434 Ok(uri) => Self::Mention {
3435 uri,
3436 content: String::new(),
3437 },
3438 Err(err) => {
3439 log::error!("Failed to parse mention link: {}", err);
3440 Self::Text(format!("[{}]({})", resource_link.name, resource_link.uri))
3441 }
3442 }
3443 }
3444 acp::ContentBlock::Resource(resource) => match resource.resource {
3445 acp::EmbeddedResourceResource::TextResourceContents(resource) => {
3446 match MentionUri::parse(&resource.uri, path_style) {
3447 Ok(uri) => Self::Mention {
3448 uri,
3449 content: resource.text,
3450 },
3451 Err(err) => {
3452 log::error!("Failed to parse mention link: {}", err);
3453 Self::Text(
3454 MarkdownCodeBlock {
3455 tag: &resource.uri,
3456 text: &resource.text,
3457 }
3458 .to_string(),
3459 )
3460 }
3461 }
3462 }
3463 acp::EmbeddedResourceResource::BlobResourceContents(_) => {
3464 // TODO
3465 Self::Text("[blob]".to_string())
3466 }
3467 other => {
3468 log::warn!("Unexpected content type: {:?}", other);
3469 Self::Text("[unknown]".to_string())
3470 }
3471 },
3472 other => {
3473 log::warn!("Unexpected content type: {:?}", other);
3474 Self::Text("[unknown]".to_string())
3475 }
3476 }
3477 }
3478}
3479
3480impl From<UserMessageContent> for acp::ContentBlock {
3481 fn from(content: UserMessageContent) -> Self {
3482 match content {
3483 UserMessageContent::Text(text) => text.into(),
3484 UserMessageContent::Image(image) => {
3485 acp::ContentBlock::Image(acp::ImageContent::new(image.source, "image/png"))
3486 }
3487 UserMessageContent::Mention { uri, content } => acp::ContentBlock::Resource(
3488 acp::EmbeddedResource::new(acp::EmbeddedResourceResource::TextResourceContents(
3489 acp::TextResourceContents::new(content, uri.to_uri().to_string()),
3490 )),
3491 ),
3492 }
3493 }
3494}
3495
3496fn convert_image(image_content: acp::ImageContent) -> LanguageModelImage {
3497 LanguageModelImage {
3498 source: image_content.data.into(),
3499 size: None,
3500 }
3501}