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 thinking_effort = settings
1097 .default_model
1098 .as_ref()
1099 .and_then(|model| model.effort.clone());
1100
1101 let mut model = LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
1102 db_thread
1103 .model
1104 .and_then(|model| {
1105 let model = SelectedModel {
1106 provider: model.provider.clone().into(),
1107 model: model.model.into(),
1108 };
1109 registry.select_model(&model, cx)
1110 })
1111 .or_else(|| registry.default_model())
1112 .map(|model| model.model)
1113 });
1114
1115 if model.is_none() {
1116 model = Self::resolve_profile_model(&profile_id, cx);
1117 }
1118 if model.is_none() {
1119 model = LanguageModelRegistry::global(cx).update(cx, |registry, _cx| {
1120 registry.default_model().map(|model| model.model)
1121 });
1122 }
1123
1124 let (prompt_capabilities_tx, prompt_capabilities_rx) =
1125 watch::channel(Self::prompt_capabilities(model.as_deref()));
1126
1127 let action_log = cx.new(|_| ActionLog::new(project.clone()));
1128 // TODO: We should serialize the user's configured thinking parameter on `DbThread`
1129 // rather than deriving it from the model's capability. A user may have explicitly
1130 // toggled thinking off for a model that supports it, and we'd lose that preference here.
1131 let enable_thinking = model
1132 .as_deref()
1133 .is_some_and(|model| model.supports_thinking());
1134
1135 Self {
1136 id,
1137 prompt_id: PromptId::new(),
1138 title: if db_thread.title.is_empty() {
1139 None
1140 } else {
1141 Some(db_thread.title.clone())
1142 },
1143 pending_title_generation: None,
1144 pending_summary_generation: None,
1145 summary: db_thread.detailed_summary,
1146 messages: db_thread.messages,
1147 user_store: project.read(cx).user_store(),
1148 running_turn: None,
1149 has_queued_message: false,
1150 pending_message: None,
1151 tools: BTreeMap::default(),
1152 request_token_usage: db_thread.request_token_usage.clone(),
1153 cumulative_token_usage: db_thread.cumulative_token_usage,
1154 initial_project_snapshot: Task::ready(db_thread.initial_project_snapshot).shared(),
1155 context_server_registry,
1156 profile_id,
1157 project_context,
1158 templates,
1159 model,
1160 summarization_model: None,
1161 thinking_enabled: enable_thinking,
1162 thinking_effort,
1163 project,
1164 action_log,
1165 updated_at: db_thread.updated_at,
1166 prompt_capabilities_tx,
1167 prompt_capabilities_rx,
1168 file_read_times: HashMap::default(),
1169 imported: db_thread.imported,
1170 subagent_context: None,
1171 running_subagents: Vec::new(),
1172 }
1173 }
1174
1175 pub fn to_db(&self, cx: &App) -> Task<DbThread> {
1176 let initial_project_snapshot = self.initial_project_snapshot.clone();
1177 let mut thread = DbThread {
1178 title: self.title(),
1179 messages: self.messages.clone(),
1180 updated_at: self.updated_at,
1181 detailed_summary: self.summary.clone(),
1182 initial_project_snapshot: None,
1183 cumulative_token_usage: self.cumulative_token_usage,
1184 request_token_usage: self.request_token_usage.clone(),
1185 model: self.model.as_ref().map(|model| DbLanguageModel {
1186 provider: model.provider_id().to_string(),
1187 model: model.id().0.to_string(),
1188 }),
1189 profile: Some(self.profile_id.clone()),
1190 imported: self.imported,
1191 };
1192
1193 cx.background_spawn(async move {
1194 let initial_project_snapshot = initial_project_snapshot.await;
1195 thread.initial_project_snapshot = initial_project_snapshot;
1196 thread
1197 })
1198 }
1199
1200 /// Create a snapshot of the current project state including git information and unsaved buffers.
1201 fn project_snapshot(
1202 project: Entity<Project>,
1203 cx: &mut Context<Self>,
1204 ) -> Task<Arc<ProjectSnapshot>> {
1205 let task = project::telemetry_snapshot::TelemetrySnapshot::new(&project, cx);
1206 cx.spawn(async move |_, _| {
1207 let snapshot = task.await;
1208
1209 Arc::new(ProjectSnapshot {
1210 worktree_snapshots: snapshot.worktree_snapshots,
1211 timestamp: Utc::now(),
1212 })
1213 })
1214 }
1215
1216 pub fn project_context(&self) -> &Entity<ProjectContext> {
1217 &self.project_context
1218 }
1219
1220 pub fn project(&self) -> &Entity<Project> {
1221 &self.project
1222 }
1223
1224 pub fn action_log(&self) -> &Entity<ActionLog> {
1225 &self.action_log
1226 }
1227
1228 pub fn is_empty(&self) -> bool {
1229 self.messages.is_empty() && self.title.is_none()
1230 }
1231
1232 pub fn model(&self) -> Option<&Arc<dyn LanguageModel>> {
1233 self.model.as_ref()
1234 }
1235
1236 pub fn set_model(&mut self, model: Arc<dyn LanguageModel>, cx: &mut Context<Self>) {
1237 let old_usage = self.latest_token_usage();
1238 self.model = Some(model);
1239 let new_caps = Self::prompt_capabilities(self.model.as_deref());
1240 let new_usage = self.latest_token_usage();
1241 if old_usage != new_usage {
1242 cx.emit(TokenUsageUpdated(new_usage));
1243 }
1244 self.prompt_capabilities_tx.send(new_caps).log_err();
1245 cx.notify()
1246 }
1247
1248 pub fn summarization_model(&self) -> Option<&Arc<dyn LanguageModel>> {
1249 self.summarization_model.as_ref()
1250 }
1251
1252 pub fn set_summarization_model(
1253 &mut self,
1254 model: Option<Arc<dyn LanguageModel>>,
1255 cx: &mut Context<Self>,
1256 ) {
1257 self.summarization_model = model;
1258 cx.notify()
1259 }
1260
1261 pub fn thinking_enabled(&self) -> bool {
1262 self.thinking_enabled
1263 }
1264
1265 pub fn set_thinking_enabled(&mut self, enabled: bool, cx: &mut Context<Self>) {
1266 self.thinking_enabled = enabled;
1267 cx.notify();
1268 }
1269
1270 pub fn thinking_effort(&self) -> Option<&String> {
1271 self.thinking_effort.as_ref()
1272 }
1273
1274 pub fn set_thinking_effort(&mut self, effort: Option<String>, cx: &mut Context<Self>) {
1275 self.thinking_effort = effort;
1276 cx.notify();
1277 }
1278
1279 pub fn last_message(&self) -> Option<Message> {
1280 if let Some(message) = self.pending_message.clone() {
1281 Some(Message::Agent(message))
1282 } else {
1283 self.messages.last().cloned()
1284 }
1285 }
1286
1287 pub fn add_default_tools(
1288 &mut self,
1289 environment: Rc<dyn ThreadEnvironment>,
1290 cx: &mut Context<Self>,
1291 ) {
1292 let language_registry = self.project.read(cx).languages().clone();
1293 self.add_tool(CopyPathTool::new(self.project.clone()));
1294 self.add_tool(CreateDirectoryTool::new(self.project.clone()));
1295 self.add_tool(DeletePathTool::new(
1296 self.project.clone(),
1297 self.action_log.clone(),
1298 ));
1299 self.add_tool(DiagnosticsTool::new(self.project.clone()));
1300 self.add_tool(EditFileTool::new(
1301 self.project.clone(),
1302 cx.weak_entity(),
1303 language_registry.clone(),
1304 Templates::new(),
1305 ));
1306 self.add_tool(StreamingEditFileTool::new(
1307 self.project.clone(),
1308 cx.weak_entity(),
1309 language_registry,
1310 Templates::new(),
1311 ));
1312 self.add_tool(FetchTool::new(self.project.read(cx).client().http_client()));
1313 self.add_tool(FindPathTool::new(self.project.clone()));
1314 self.add_tool(GrepTool::new(self.project.clone()));
1315 self.add_tool(ListDirectoryTool::new(self.project.clone()));
1316 self.add_tool(MovePathTool::new(self.project.clone()));
1317 self.add_tool(NowTool);
1318 self.add_tool(OpenTool::new(self.project.clone()));
1319 self.add_tool(ReadFileTool::new(
1320 cx.weak_entity(),
1321 self.project.clone(),
1322 self.action_log.clone(),
1323 ));
1324 self.add_tool(SaveFileTool::new(self.project.clone()));
1325 self.add_tool(RestoreFileFromDiskTool::new(self.project.clone()));
1326 self.add_tool(TerminalTool::new(self.project.clone(), environment));
1327 self.add_tool(ThinkingTool);
1328 self.add_tool(WebSearchTool);
1329
1330 if cx.has_flag::<SubagentsFeatureFlag>() && self.depth() < MAX_SUBAGENT_DEPTH {
1331 self.add_tool(SubagentTool::new(cx.weak_entity(), self.depth()));
1332 }
1333 }
1334
1335 pub fn add_tool<T: AgentTool>(&mut self, tool: T) {
1336 debug_assert!(
1337 !self.tools.contains_key(T::NAME),
1338 "Duplicate tool name: {}",
1339 T::NAME,
1340 );
1341 self.tools.insert(T::NAME.into(), tool.erase());
1342 }
1343
1344 pub fn remove_tool(&mut self, name: &str) -> bool {
1345 self.tools.remove(name).is_some()
1346 }
1347
1348 pub fn restrict_tools(&mut self, allowed: &collections::HashSet<SharedString>) {
1349 self.tools.retain(|name, _| allowed.contains(name));
1350 }
1351
1352 pub fn profile(&self) -> &AgentProfileId {
1353 &self.profile_id
1354 }
1355
1356 pub fn set_profile(&mut self, profile_id: AgentProfileId, cx: &mut Context<Self>) {
1357 if self.profile_id == profile_id {
1358 return;
1359 }
1360
1361 self.profile_id = profile_id;
1362
1363 // Swap to the profile's preferred model when available.
1364 if let Some(model) = Self::resolve_profile_model(&self.profile_id, cx) {
1365 self.set_model(model, cx);
1366 }
1367 }
1368
1369 pub fn cancel(&mut self, cx: &mut Context<Self>) -> Task<()> {
1370 for subagent in self.running_subagents.drain(..) {
1371 if let Some(subagent) = subagent.upgrade() {
1372 subagent.update(cx, |thread, cx| thread.cancel(cx)).detach();
1373 }
1374 }
1375
1376 let Some(running_turn) = self.running_turn.take() else {
1377 self.flush_pending_message(cx);
1378 return Task::ready(());
1379 };
1380
1381 let turn_task = running_turn.cancel();
1382
1383 cx.spawn(async move |this, cx| {
1384 turn_task.await;
1385 this.update(cx, |this, cx| {
1386 this.flush_pending_message(cx);
1387 })
1388 .ok();
1389 })
1390 }
1391
1392 pub fn set_has_queued_message(&mut self, has_queued: bool) {
1393 self.has_queued_message = has_queued;
1394 }
1395
1396 pub fn has_queued_message(&self) -> bool {
1397 self.has_queued_message
1398 }
1399
1400 fn update_token_usage(&mut self, update: language_model::TokenUsage, cx: &mut Context<Self>) {
1401 let Some(last_user_message) = self.last_user_message() else {
1402 return;
1403 };
1404
1405 self.request_token_usage
1406 .insert(last_user_message.id.clone(), update);
1407 cx.emit(TokenUsageUpdated(self.latest_token_usage()));
1408 cx.notify();
1409 }
1410
1411 pub fn truncate(&mut self, message_id: UserMessageId, cx: &mut Context<Self>) -> Result<()> {
1412 self.cancel(cx).detach();
1413 // Clear pending message since cancel will try to flush it asynchronously,
1414 // and we don't want that content to be added after we truncate
1415 self.pending_message.take();
1416 let Some(position) = self.messages.iter().position(
1417 |msg| matches!(msg, Message::User(UserMessage { id, .. }) if id == &message_id),
1418 ) else {
1419 return Err(anyhow!("Message not found"));
1420 };
1421
1422 for message in self.messages.drain(position..) {
1423 match message {
1424 Message::User(message) => {
1425 self.request_token_usage.remove(&message.id);
1426 }
1427 Message::Agent(_) | Message::Resume => {}
1428 }
1429 }
1430 self.clear_summary();
1431 cx.notify();
1432 Ok(())
1433 }
1434
1435 pub fn latest_request_token_usage(&self) -> Option<language_model::TokenUsage> {
1436 let last_user_message = self.last_user_message()?;
1437 let tokens = self.request_token_usage.get(&last_user_message.id)?;
1438 Some(*tokens)
1439 }
1440
1441 pub fn latest_token_usage(&self) -> Option<acp_thread::TokenUsage> {
1442 let usage = self.latest_request_token_usage()?;
1443 let model = self.model.clone()?;
1444 Some(acp_thread::TokenUsage {
1445 max_tokens: model.max_token_count(),
1446 used_tokens: usage.total_tokens(),
1447 input_tokens: usage.input_tokens,
1448 output_tokens: usage.output_tokens,
1449 })
1450 }
1451
1452 /// Get the total input token count as of the message before the given message.
1453 ///
1454 /// Returns `None` if:
1455 /// - `target_id` is the first message (no previous message)
1456 /// - The previous message hasn't received a response yet (no usage data)
1457 /// - `target_id` is not found in the messages
1458 pub fn tokens_before_message(&self, target_id: &UserMessageId) -> Option<u64> {
1459 let mut previous_user_message_id: Option<&UserMessageId> = None;
1460
1461 for message in &self.messages {
1462 if let Message::User(user_msg) = message {
1463 if &user_msg.id == target_id {
1464 let prev_id = previous_user_message_id?;
1465 let usage = self.request_token_usage.get(prev_id)?;
1466 return Some(usage.input_tokens);
1467 }
1468 previous_user_message_id = Some(&user_msg.id);
1469 }
1470 }
1471 None
1472 }
1473
1474 /// Look up the active profile and resolve its preferred model if one is configured.
1475 fn resolve_profile_model(
1476 profile_id: &AgentProfileId,
1477 cx: &mut Context<Self>,
1478 ) -> Option<Arc<dyn LanguageModel>> {
1479 let selection = AgentSettings::get_global(cx)
1480 .profiles
1481 .get(profile_id)?
1482 .default_model
1483 .clone()?;
1484 Self::resolve_model_from_selection(&selection, cx)
1485 }
1486
1487 /// Translate a stored model selection into the configured model from the registry.
1488 fn resolve_model_from_selection(
1489 selection: &LanguageModelSelection,
1490 cx: &mut Context<Self>,
1491 ) -> Option<Arc<dyn LanguageModel>> {
1492 let selected = SelectedModel {
1493 provider: LanguageModelProviderId::from(selection.provider.0.clone()),
1494 model: LanguageModelId::from(selection.model.clone()),
1495 };
1496 LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
1497 registry
1498 .select_model(&selected, cx)
1499 .map(|configured| configured.model)
1500 })
1501 }
1502
1503 pub fn resume(
1504 &mut self,
1505 cx: &mut Context<Self>,
1506 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
1507 self.messages.push(Message::Resume);
1508 cx.notify();
1509
1510 log::debug!("Total messages in thread: {}", self.messages.len());
1511 self.run_turn(cx)
1512 }
1513
1514 /// Sending a message results in the model streaming a response, which could include tool calls.
1515 /// After calling tools, the model will stops and waits for any outstanding tool calls to be completed and their results sent.
1516 /// The returned channel will report all the occurrences in which the model stops before erroring or ending its turn.
1517 pub fn send<T>(
1518 &mut self,
1519 id: UserMessageId,
1520 content: impl IntoIterator<Item = T>,
1521 cx: &mut Context<Self>,
1522 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>>
1523 where
1524 T: Into<UserMessageContent>,
1525 {
1526 let content = content.into_iter().map(Into::into).collect::<Vec<_>>();
1527 log::debug!("Thread::send content: {:?}", content);
1528
1529 self.messages
1530 .push(Message::User(UserMessage { id, content }));
1531 cx.notify();
1532
1533 self.send_existing(cx)
1534 }
1535
1536 pub fn send_existing(
1537 &mut self,
1538 cx: &mut Context<Self>,
1539 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
1540 let model = self.model().context("No language model configured")?;
1541
1542 log::info!("Thread::send called with model: {}", model.name().0);
1543 self.advance_prompt_id();
1544
1545 log::debug!("Total messages in thread: {}", self.messages.len());
1546 self.run_turn(cx)
1547 }
1548
1549 pub fn push_acp_user_block(
1550 &mut self,
1551 id: UserMessageId,
1552 blocks: impl IntoIterator<Item = acp::ContentBlock>,
1553 path_style: PathStyle,
1554 cx: &mut Context<Self>,
1555 ) {
1556 let content = blocks
1557 .into_iter()
1558 .map(|block| UserMessageContent::from_content_block(block, path_style))
1559 .collect::<Vec<_>>();
1560 self.messages
1561 .push(Message::User(UserMessage { id, content }));
1562 cx.notify();
1563 }
1564
1565 pub fn push_acp_agent_block(&mut self, block: acp::ContentBlock, cx: &mut Context<Self>) {
1566 let text = match block {
1567 acp::ContentBlock::Text(text_content) => text_content.text,
1568 acp::ContentBlock::Image(_) => "[image]".to_string(),
1569 acp::ContentBlock::Audio(_) => "[audio]".to_string(),
1570 acp::ContentBlock::ResourceLink(resource_link) => resource_link.uri,
1571 acp::ContentBlock::Resource(resource) => match resource.resource {
1572 acp::EmbeddedResourceResource::TextResourceContents(resource) => resource.uri,
1573 acp::EmbeddedResourceResource::BlobResourceContents(resource) => resource.uri,
1574 _ => "[resource]".to_string(),
1575 },
1576 _ => "[unknown]".to_string(),
1577 };
1578
1579 self.messages.push(Message::Agent(AgentMessage {
1580 content: vec![AgentMessageContent::Text(text)],
1581 ..Default::default()
1582 }));
1583 cx.notify();
1584 }
1585
1586 #[cfg(feature = "eval")]
1587 pub fn proceed(
1588 &mut self,
1589 cx: &mut Context<Self>,
1590 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
1591 self.run_turn(cx)
1592 }
1593
1594 fn run_turn(
1595 &mut self,
1596 cx: &mut Context<Self>,
1597 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
1598 // Flush the old pending message synchronously before cancelling,
1599 // to avoid a race where the detached cancel task might flush the NEW
1600 // turn's pending message instead of the old one.
1601 self.flush_pending_message(cx);
1602 self.cancel(cx).detach();
1603
1604 let model = self.model.clone().context("No language model configured")?;
1605 let profile = AgentSettings::get_global(cx)
1606 .profiles
1607 .get(&self.profile_id)
1608 .context("Profile not found")?;
1609 let (events_tx, events_rx) = mpsc::unbounded::<Result<ThreadEvent>>();
1610 let event_stream = ThreadEventStream(events_tx);
1611 let message_ix = self.messages.len().saturating_sub(1);
1612 self.clear_summary();
1613 let (cancellation_tx, mut cancellation_rx) = watch::channel(false);
1614 self.running_turn = Some(RunningTurn {
1615 event_stream: event_stream.clone(),
1616 tools: self.enabled_tools(profile, &model, cx),
1617 cancellation_tx,
1618 _task: cx.spawn(async move |this, cx| {
1619 log::debug!("Starting agent turn execution");
1620
1621 let turn_result = Self::run_turn_internal(
1622 &this,
1623 model,
1624 &event_stream,
1625 cancellation_rx.clone(),
1626 cx,
1627 )
1628 .await;
1629
1630 // Check if we were cancelled - if so, cancel() already took running_turn
1631 // and we shouldn't touch it (it might be a NEW turn now)
1632 let was_cancelled = *cancellation_rx.borrow();
1633 if was_cancelled {
1634 log::debug!("Turn was cancelled, skipping cleanup");
1635 return;
1636 }
1637
1638 _ = this.update(cx, |this, cx| this.flush_pending_message(cx));
1639
1640 match turn_result {
1641 Ok(()) => {
1642 log::debug!("Turn execution completed");
1643 event_stream.send_stop(acp::StopReason::EndTurn);
1644 }
1645 Err(error) => {
1646 log::error!("Turn execution failed: {:?}", error);
1647 match error.downcast::<CompletionError>() {
1648 Ok(CompletionError::Refusal) => {
1649 event_stream.send_stop(acp::StopReason::Refusal);
1650 _ = this.update(cx, |this, _| this.messages.truncate(message_ix));
1651 }
1652 Ok(CompletionError::MaxTokens) => {
1653 event_stream.send_stop(acp::StopReason::MaxTokens);
1654 }
1655 Ok(CompletionError::Other(error)) | Err(error) => {
1656 event_stream.send_error(error);
1657 }
1658 }
1659 }
1660 }
1661
1662 _ = this.update(cx, |this, _| this.running_turn.take());
1663 }),
1664 });
1665 Ok(events_rx)
1666 }
1667
1668 async fn run_turn_internal(
1669 this: &WeakEntity<Self>,
1670 model: Arc<dyn LanguageModel>,
1671 event_stream: &ThreadEventStream,
1672 mut cancellation_rx: watch::Receiver<bool>,
1673 cx: &mut AsyncApp,
1674 ) -> Result<()> {
1675 let mut attempt = 0;
1676 let mut intent = CompletionIntent::UserPrompt;
1677 loop {
1678 let request =
1679 this.update(cx, |this, cx| this.build_completion_request(intent, cx))??;
1680
1681 telemetry::event!(
1682 "Agent Thread Completion",
1683 thread_id = this.read_with(cx, |this, _| this.id.to_string())?,
1684 prompt_id = this.read_with(cx, |this, _| this.prompt_id.to_string())?,
1685 model = model.telemetry_id(),
1686 model_provider = model.provider_id().to_string(),
1687 attempt
1688 );
1689
1690 log::debug!("Calling model.stream_completion, attempt {}", attempt);
1691
1692 let (mut events, mut error) = match model.stream_completion(request, cx).await {
1693 Ok(events) => (events.fuse(), None),
1694 Err(err) => (stream::empty().boxed().fuse(), Some(err)),
1695 };
1696 let mut tool_results = FuturesUnordered::new();
1697 let mut cancelled = false;
1698 loop {
1699 // Race between getting the first event and cancellation
1700 let first_event = futures::select! {
1701 event = events.next().fuse() => event,
1702 _ = cancellation_rx.changed().fuse() => {
1703 if *cancellation_rx.borrow() {
1704 cancelled = true;
1705 break;
1706 }
1707 continue;
1708 }
1709 };
1710 let Some(first_event) = first_event else {
1711 break;
1712 };
1713
1714 // Collect all immediately available events to process as a batch
1715 let mut batch = vec![first_event];
1716 while let Some(event) = events.next().now_or_never().flatten() {
1717 batch.push(event);
1718 }
1719
1720 // Process the batch in a single update
1721 let batch_result = this.update(cx, |this, cx| {
1722 let mut batch_tool_results = Vec::new();
1723 let mut batch_error = None;
1724
1725 for event in batch {
1726 log::trace!("Received completion event: {:?}", event);
1727 match event {
1728 Ok(event) => {
1729 match this.handle_completion_event(
1730 event,
1731 event_stream,
1732 cancellation_rx.clone(),
1733 cx,
1734 ) {
1735 Ok(Some(task)) => batch_tool_results.push(task),
1736 Ok(None) => {}
1737 Err(err) => {
1738 batch_error = Some(err);
1739 break;
1740 }
1741 }
1742 }
1743 Err(err) => {
1744 batch_error = Some(err.into());
1745 break;
1746 }
1747 }
1748 }
1749
1750 cx.notify();
1751 (batch_tool_results, batch_error)
1752 })?;
1753
1754 tool_results.extend(batch_result.0);
1755 if let Some(err) = batch_result.1 {
1756 error = Some(err.downcast()?);
1757 break;
1758 }
1759 }
1760
1761 // Drop the stream to release the rate limit permit before tool execution.
1762 // The stream holds a semaphore guard that limits concurrent requests.
1763 // Without this, the permit would be held during potentially long-running
1764 // tool execution, which could cause deadlocks when tools spawn subagents
1765 // that need their own permits.
1766 drop(events);
1767
1768 let end_turn = tool_results.is_empty();
1769 while let Some(tool_result) = tool_results.next().await {
1770 log::debug!("Tool finished {:?}", tool_result);
1771
1772 event_stream.update_tool_call_fields(
1773 &tool_result.tool_use_id,
1774 acp::ToolCallUpdateFields::new()
1775 .status(if tool_result.is_error {
1776 acp::ToolCallStatus::Failed
1777 } else {
1778 acp::ToolCallStatus::Completed
1779 })
1780 .raw_output(tool_result.output.clone()),
1781 );
1782 this.update(cx, |this, _cx| {
1783 this.pending_message()
1784 .tool_results
1785 .insert(tool_result.tool_use_id.clone(), tool_result);
1786 })?;
1787 }
1788
1789 this.update(cx, |this, cx| {
1790 this.flush_pending_message(cx);
1791 if this.title.is_none() && this.pending_title_generation.is_none() {
1792 this.generate_title(cx);
1793 }
1794 })?;
1795
1796 if cancelled {
1797 log::debug!("Turn cancelled by user, exiting");
1798 return Ok(());
1799 }
1800
1801 if let Some(error) = error {
1802 attempt += 1;
1803 let retry = this.update(cx, |this, cx| {
1804 let user_store = this.user_store.read(cx);
1805 this.handle_completion_error(error, attempt, user_store.plan())
1806 })??;
1807 let timer = cx.background_executor().timer(retry.duration);
1808 event_stream.send_retry(retry);
1809 timer.await;
1810 this.update(cx, |this, _cx| {
1811 if let Some(Message::Agent(message)) = this.messages.last() {
1812 if message.tool_results.is_empty() {
1813 intent = CompletionIntent::UserPrompt;
1814 this.messages.push(Message::Resume);
1815 }
1816 }
1817 })?;
1818 } else if end_turn {
1819 return Ok(());
1820 } else {
1821 let has_queued = this.update(cx, |this, _| this.has_queued_message())?;
1822 if has_queued {
1823 log::debug!("Queued message found, ending turn at message boundary");
1824 return Ok(());
1825 }
1826 intent = CompletionIntent::ToolResults;
1827 attempt = 0;
1828 }
1829 }
1830 }
1831
1832 fn handle_completion_error(
1833 &mut self,
1834 error: LanguageModelCompletionError,
1835 attempt: u8,
1836 plan: Option<Plan>,
1837 ) -> Result<acp_thread::RetryStatus> {
1838 let Some(model) = self.model.as_ref() else {
1839 return Err(anyhow!(error));
1840 };
1841
1842 let auto_retry = if model.provider_id() == ZED_CLOUD_PROVIDER_ID {
1843 plan.is_some()
1844 } else {
1845 true
1846 };
1847
1848 if !auto_retry {
1849 return Err(anyhow!(error));
1850 }
1851
1852 let Some(strategy) = Self::retry_strategy_for(&error) else {
1853 return Err(anyhow!(error));
1854 };
1855
1856 let max_attempts = match &strategy {
1857 RetryStrategy::ExponentialBackoff { max_attempts, .. } => *max_attempts,
1858 RetryStrategy::Fixed { max_attempts, .. } => *max_attempts,
1859 };
1860
1861 if attempt > max_attempts {
1862 return Err(anyhow!(error));
1863 }
1864
1865 let delay = match &strategy {
1866 RetryStrategy::ExponentialBackoff { initial_delay, .. } => {
1867 let delay_secs = initial_delay.as_secs() * 2u64.pow((attempt - 1) as u32);
1868 Duration::from_secs(delay_secs)
1869 }
1870 RetryStrategy::Fixed { delay, .. } => *delay,
1871 };
1872 log::debug!("Retry attempt {attempt} with delay {delay:?}");
1873
1874 Ok(acp_thread::RetryStatus {
1875 last_error: error.to_string().into(),
1876 attempt: attempt as usize,
1877 max_attempts: max_attempts as usize,
1878 started_at: Instant::now(),
1879 duration: delay,
1880 })
1881 }
1882
1883 /// A helper method that's called on every streamed completion event.
1884 /// Returns an optional tool result task, which the main agentic loop will
1885 /// send back to the model when it resolves.
1886 fn handle_completion_event(
1887 &mut self,
1888 event: LanguageModelCompletionEvent,
1889 event_stream: &ThreadEventStream,
1890 cancellation_rx: watch::Receiver<bool>,
1891 cx: &mut Context<Self>,
1892 ) -> Result<Option<Task<LanguageModelToolResult>>> {
1893 log::trace!("Handling streamed completion event: {:?}", event);
1894 use LanguageModelCompletionEvent::*;
1895
1896 match event {
1897 StartMessage { .. } => {
1898 self.flush_pending_message(cx);
1899 self.pending_message = Some(AgentMessage::default());
1900 }
1901 Text(new_text) => self.handle_text_event(new_text, event_stream),
1902 Thinking { text, signature } => {
1903 self.handle_thinking_event(text, signature, event_stream)
1904 }
1905 RedactedThinking { data } => self.handle_redacted_thinking_event(data),
1906 ReasoningDetails(details) => {
1907 let last_message = self.pending_message();
1908 // Store the last non-empty reasoning_details (overwrites earlier ones)
1909 // This ensures we keep the encrypted reasoning with signatures, not the early text reasoning
1910 if let serde_json::Value::Array(ref arr) = details {
1911 if !arr.is_empty() {
1912 last_message.reasoning_details = Some(details);
1913 }
1914 } else {
1915 last_message.reasoning_details = Some(details);
1916 }
1917 }
1918 ToolUse(tool_use) => {
1919 return Ok(self.handle_tool_use_event(tool_use, event_stream, cancellation_rx, cx));
1920 }
1921 ToolUseJsonParseError {
1922 id,
1923 tool_name,
1924 raw_input,
1925 json_parse_error,
1926 } => {
1927 return Ok(Some(Task::ready(
1928 self.handle_tool_use_json_parse_error_event(
1929 id,
1930 tool_name,
1931 raw_input,
1932 json_parse_error,
1933 ),
1934 )));
1935 }
1936 UsageUpdate(usage) => {
1937 telemetry::event!(
1938 "Agent Thread Completion Usage Updated",
1939 thread_id = self.id.to_string(),
1940 prompt_id = self.prompt_id.to_string(),
1941 model = self.model.as_ref().map(|m| m.telemetry_id()),
1942 model_provider = self.model.as_ref().map(|m| m.provider_id().to_string()),
1943 input_tokens = usage.input_tokens,
1944 output_tokens = usage.output_tokens,
1945 cache_creation_input_tokens = usage.cache_creation_input_tokens,
1946 cache_read_input_tokens = usage.cache_read_input_tokens,
1947 );
1948 self.update_token_usage(usage, cx);
1949 }
1950 Stop(StopReason::Refusal) => return Err(CompletionError::Refusal.into()),
1951 Stop(StopReason::MaxTokens) => return Err(CompletionError::MaxTokens.into()),
1952 Stop(StopReason::ToolUse | StopReason::EndTurn) => {}
1953 Started | Queued { .. } => {}
1954 }
1955
1956 Ok(None)
1957 }
1958
1959 fn handle_text_event(&mut self, new_text: String, event_stream: &ThreadEventStream) {
1960 event_stream.send_text(&new_text);
1961
1962 let last_message = self.pending_message();
1963 if let Some(AgentMessageContent::Text(text)) = last_message.content.last_mut() {
1964 text.push_str(&new_text);
1965 } else {
1966 last_message
1967 .content
1968 .push(AgentMessageContent::Text(new_text));
1969 }
1970 }
1971
1972 fn handle_thinking_event(
1973 &mut self,
1974 new_text: String,
1975 new_signature: Option<String>,
1976 event_stream: &ThreadEventStream,
1977 ) {
1978 event_stream.send_thinking(&new_text);
1979
1980 let last_message = self.pending_message();
1981 if let Some(AgentMessageContent::Thinking { text, signature }) =
1982 last_message.content.last_mut()
1983 {
1984 text.push_str(&new_text);
1985 *signature = new_signature.or(signature.take());
1986 } else {
1987 last_message.content.push(AgentMessageContent::Thinking {
1988 text: new_text,
1989 signature: new_signature,
1990 });
1991 }
1992 }
1993
1994 fn handle_redacted_thinking_event(&mut self, data: String) {
1995 let last_message = self.pending_message();
1996 last_message
1997 .content
1998 .push(AgentMessageContent::RedactedThinking(data));
1999 }
2000
2001 fn handle_tool_use_event(
2002 &mut self,
2003 tool_use: LanguageModelToolUse,
2004 event_stream: &ThreadEventStream,
2005 cancellation_rx: watch::Receiver<bool>,
2006 cx: &mut Context<Self>,
2007 ) -> Option<Task<LanguageModelToolResult>> {
2008 cx.notify();
2009
2010 let tool = self.tool(tool_use.name.as_ref());
2011 let mut title = SharedString::from(&tool_use.name);
2012 let mut kind = acp::ToolKind::Other;
2013 if let Some(tool) = tool.as_ref() {
2014 title = tool.initial_title(tool_use.input.clone(), cx);
2015 kind = tool.kind();
2016 }
2017
2018 // Ensure the last message ends in the current tool use
2019 let last_message = self.pending_message();
2020 let push_new_tool_use = last_message.content.last_mut().is_none_or(|content| {
2021 if let AgentMessageContent::ToolUse(last_tool_use) = content {
2022 if last_tool_use.id == tool_use.id {
2023 *last_tool_use = tool_use.clone();
2024 false
2025 } else {
2026 true
2027 }
2028 } else {
2029 true
2030 }
2031 });
2032
2033 if push_new_tool_use {
2034 event_stream.send_tool_call(
2035 &tool_use.id,
2036 &tool_use.name,
2037 title,
2038 kind,
2039 tool_use.input.clone(),
2040 );
2041 last_message
2042 .content
2043 .push(AgentMessageContent::ToolUse(tool_use.clone()));
2044 } else {
2045 event_stream.update_tool_call_fields(
2046 &tool_use.id,
2047 acp::ToolCallUpdateFields::new()
2048 .title(title.as_str())
2049 .kind(kind)
2050 .raw_input(tool_use.input.clone()),
2051 );
2052 }
2053
2054 if !tool_use.is_input_complete {
2055 return None;
2056 }
2057
2058 let Some(tool) = tool else {
2059 let content = format!("No tool named {} exists", tool_use.name);
2060 return Some(Task::ready(LanguageModelToolResult {
2061 content: LanguageModelToolResultContent::Text(Arc::from(content)),
2062 tool_use_id: tool_use.id,
2063 tool_name: tool_use.name,
2064 is_error: true,
2065 output: None,
2066 }));
2067 };
2068
2069 let fs = self.project.read(cx).fs().clone();
2070 let tool_event_stream = ToolCallEventStream::new(
2071 tool_use.id.clone(),
2072 event_stream.clone(),
2073 Some(fs),
2074 cancellation_rx,
2075 );
2076 tool_event_stream.update_fields(
2077 acp::ToolCallUpdateFields::new().status(acp::ToolCallStatus::InProgress),
2078 );
2079 let supports_images = self.model().is_some_and(|model| model.supports_images());
2080 let tool_result = tool.run(tool_use.input, tool_event_stream, cx);
2081 log::debug!("Running tool {}", tool_use.name);
2082 Some(cx.foreground_executor().spawn(async move {
2083 let tool_result = tool_result.await.and_then(|output| {
2084 if let LanguageModelToolResultContent::Image(_) = &output.llm_output
2085 && !supports_images
2086 {
2087 return Err(anyhow!(
2088 "Attempted to read an image, but this model doesn't support it.",
2089 ));
2090 }
2091 Ok(output)
2092 });
2093
2094 match tool_result {
2095 Ok(output) => LanguageModelToolResult {
2096 tool_use_id: tool_use.id,
2097 tool_name: tool_use.name,
2098 is_error: false,
2099 content: output.llm_output,
2100 output: Some(output.raw_output),
2101 },
2102 Err(error) => LanguageModelToolResult {
2103 tool_use_id: tool_use.id,
2104 tool_name: tool_use.name,
2105 is_error: true,
2106 content: LanguageModelToolResultContent::Text(Arc::from(error.to_string())),
2107 output: Some(error.to_string().into()),
2108 },
2109 }
2110 }))
2111 }
2112
2113 fn handle_tool_use_json_parse_error_event(
2114 &mut self,
2115 tool_use_id: LanguageModelToolUseId,
2116 tool_name: Arc<str>,
2117 raw_input: Arc<str>,
2118 json_parse_error: String,
2119 ) -> LanguageModelToolResult {
2120 let tool_output = format!("Error parsing input JSON: {json_parse_error}");
2121 LanguageModelToolResult {
2122 tool_use_id,
2123 tool_name,
2124 is_error: true,
2125 content: LanguageModelToolResultContent::Text(tool_output.into()),
2126 output: Some(serde_json::Value::String(raw_input.to_string())),
2127 }
2128 }
2129
2130 pub fn title(&self) -> SharedString {
2131 self.title.clone().unwrap_or("New Thread".into())
2132 }
2133
2134 pub fn is_generating_summary(&self) -> bool {
2135 self.pending_summary_generation.is_some()
2136 }
2137
2138 pub fn is_generating_title(&self) -> bool {
2139 self.pending_title_generation.is_some()
2140 }
2141
2142 pub fn summary(&mut self, cx: &mut Context<Self>) -> Shared<Task<Option<SharedString>>> {
2143 if let Some(summary) = self.summary.as_ref() {
2144 return Task::ready(Some(summary.clone())).shared();
2145 }
2146 if let Some(task) = self.pending_summary_generation.clone() {
2147 return task;
2148 }
2149 let Some(model) = self.summarization_model.clone() else {
2150 log::error!("No summarization model available");
2151 return Task::ready(None).shared();
2152 };
2153 let mut request = LanguageModelRequest {
2154 intent: Some(CompletionIntent::ThreadContextSummarization),
2155 temperature: AgentSettings::temperature_for_model(&model, cx),
2156 ..Default::default()
2157 };
2158
2159 for message in &self.messages {
2160 request.messages.extend(message.to_request());
2161 }
2162
2163 request.messages.push(LanguageModelRequestMessage {
2164 role: Role::User,
2165 content: vec![SUMMARIZE_THREAD_DETAILED_PROMPT.into()],
2166 cache: false,
2167 reasoning_details: None,
2168 });
2169
2170 let task = cx
2171 .spawn(async move |this, cx| {
2172 let mut summary = String::new();
2173 let mut messages = model.stream_completion(request, cx).await.log_err()?;
2174 while let Some(event) = messages.next().await {
2175 let event = event.log_err()?;
2176 let text = match event {
2177 LanguageModelCompletionEvent::Text(text) => text,
2178 _ => continue,
2179 };
2180
2181 let mut lines = text.lines();
2182 summary.extend(lines.next());
2183 }
2184
2185 log::debug!("Setting summary: {}", summary);
2186 let summary = SharedString::from(summary);
2187
2188 this.update(cx, |this, cx| {
2189 this.summary = Some(summary.clone());
2190 this.pending_summary_generation = None;
2191 cx.notify()
2192 })
2193 .ok()?;
2194
2195 Some(summary)
2196 })
2197 .shared();
2198 self.pending_summary_generation = Some(task.clone());
2199 task
2200 }
2201
2202 pub fn generate_title(&mut self, cx: &mut Context<Self>) {
2203 let Some(model) = self.summarization_model.clone() else {
2204 return;
2205 };
2206
2207 log::debug!(
2208 "Generating title with model: {:?}",
2209 self.summarization_model.as_ref().map(|model| model.name())
2210 );
2211 let mut request = LanguageModelRequest {
2212 intent: Some(CompletionIntent::ThreadSummarization),
2213 temperature: AgentSettings::temperature_for_model(&model, cx),
2214 ..Default::default()
2215 };
2216
2217 for message in &self.messages {
2218 request.messages.extend(message.to_request());
2219 }
2220
2221 request.messages.push(LanguageModelRequestMessage {
2222 role: Role::User,
2223 content: vec![SUMMARIZE_THREAD_PROMPT.into()],
2224 cache: false,
2225 reasoning_details: None,
2226 });
2227 self.pending_title_generation = Some(cx.spawn(async move |this, cx| {
2228 let mut title = String::new();
2229
2230 let generate = async {
2231 let mut messages = model.stream_completion(request, cx).await?;
2232 while let Some(event) = messages.next().await {
2233 let event = event?;
2234 let text = match event {
2235 LanguageModelCompletionEvent::Text(text) => text,
2236 _ => continue,
2237 };
2238
2239 let mut lines = text.lines();
2240 title.extend(lines.next());
2241
2242 // Stop if the LLM generated multiple lines.
2243 if lines.next().is_some() {
2244 break;
2245 }
2246 }
2247 anyhow::Ok(())
2248 };
2249
2250 if generate.await.context("failed to generate title").is_ok() {
2251 _ = this.update(cx, |this, cx| this.set_title(title.into(), cx));
2252 }
2253 _ = this.update(cx, |this, _| this.pending_title_generation = None);
2254 }));
2255 }
2256
2257 pub fn set_title(&mut self, title: SharedString, cx: &mut Context<Self>) {
2258 self.pending_title_generation = None;
2259 if Some(&title) != self.title.as_ref() {
2260 self.title = Some(title);
2261 cx.emit(TitleUpdated);
2262 cx.notify();
2263 }
2264 }
2265
2266 fn clear_summary(&mut self) {
2267 self.summary = None;
2268 self.pending_summary_generation = None;
2269 }
2270
2271 fn last_user_message(&self) -> Option<&UserMessage> {
2272 self.messages
2273 .iter()
2274 .rev()
2275 .find_map(|message| match message {
2276 Message::User(user_message) => Some(user_message),
2277 Message::Agent(_) => None,
2278 Message::Resume => None,
2279 })
2280 }
2281
2282 fn pending_message(&mut self) -> &mut AgentMessage {
2283 self.pending_message.get_or_insert_default()
2284 }
2285
2286 fn flush_pending_message(&mut self, cx: &mut Context<Self>) {
2287 let Some(mut message) = self.pending_message.take() else {
2288 return;
2289 };
2290
2291 if message.content.is_empty() {
2292 return;
2293 }
2294
2295 for content in &message.content {
2296 let AgentMessageContent::ToolUse(tool_use) = content else {
2297 continue;
2298 };
2299
2300 if !message.tool_results.contains_key(&tool_use.id) {
2301 message.tool_results.insert(
2302 tool_use.id.clone(),
2303 LanguageModelToolResult {
2304 tool_use_id: tool_use.id.clone(),
2305 tool_name: tool_use.name.clone(),
2306 is_error: true,
2307 content: LanguageModelToolResultContent::Text(TOOL_CANCELED_MESSAGE.into()),
2308 output: None,
2309 },
2310 );
2311 }
2312 }
2313
2314 self.messages.push(Message::Agent(message));
2315 self.updated_at = Utc::now();
2316 self.clear_summary();
2317 cx.notify()
2318 }
2319
2320 pub(crate) fn build_completion_request(
2321 &self,
2322 completion_intent: CompletionIntent,
2323 cx: &App,
2324 ) -> Result<LanguageModelRequest> {
2325 let model = self.model().context("No language model configured")?;
2326 let tools = if let Some(turn) = self.running_turn.as_ref() {
2327 turn.tools
2328 .iter()
2329 .filter_map(|(tool_name, tool)| {
2330 log::trace!("Including tool: {}", tool_name);
2331 Some(LanguageModelRequestTool {
2332 name: tool_name.to_string(),
2333 description: tool.description().to_string(),
2334 input_schema: tool.input_schema(model.tool_input_format()).log_err()?,
2335 })
2336 })
2337 .collect::<Vec<_>>()
2338 } else {
2339 Vec::new()
2340 };
2341
2342 log::debug!("Building completion request");
2343 log::debug!("Completion intent: {:?}", completion_intent);
2344
2345 let available_tools: Vec<_> = self
2346 .running_turn
2347 .as_ref()
2348 .map(|turn| turn.tools.keys().cloned().collect())
2349 .unwrap_or_default();
2350
2351 log::debug!("Request includes {} tools", available_tools.len());
2352 let messages = self.build_request_messages(available_tools, cx);
2353 log::debug!("Request will include {} messages", messages.len());
2354
2355 let request = LanguageModelRequest {
2356 thread_id: Some(self.id.to_string()),
2357 prompt_id: Some(self.prompt_id.to_string()),
2358 intent: Some(completion_intent),
2359 messages,
2360 tools,
2361 tool_choice: None,
2362 stop: Vec::new(),
2363 temperature: AgentSettings::temperature_for_model(model, cx),
2364 thinking_allowed: self.thinking_enabled,
2365 thinking_effort: self.thinking_effort.clone(),
2366 };
2367
2368 log::debug!("Completion request built successfully");
2369 Ok(request)
2370 }
2371
2372 fn enabled_tools(
2373 &self,
2374 profile: &AgentProfileSettings,
2375 model: &Arc<dyn LanguageModel>,
2376 cx: &App,
2377 ) -> BTreeMap<SharedString, Arc<dyn AnyAgentTool>> {
2378 fn truncate(tool_name: &SharedString) -> SharedString {
2379 if tool_name.len() > MAX_TOOL_NAME_LENGTH {
2380 let mut truncated = tool_name.to_string();
2381 truncated.truncate(MAX_TOOL_NAME_LENGTH);
2382 truncated.into()
2383 } else {
2384 tool_name.clone()
2385 }
2386 }
2387
2388 let use_streaming_edit_tool = false;
2389
2390 let mut tools = self
2391 .tools
2392 .iter()
2393 .filter_map(|(tool_name, tool)| {
2394 // For streaming_edit_file, check profile against "edit_file" since that's what users configure
2395 let profile_tool_name = if tool_name == StreamingEditFileTool::NAME {
2396 EditFileTool::NAME
2397 } else {
2398 tool_name.as_ref()
2399 };
2400
2401 if tool.supports_provider(&model.provider_id())
2402 && profile.is_tool_enabled(profile_tool_name)
2403 {
2404 match (tool_name.as_ref(), use_streaming_edit_tool) {
2405 (StreamingEditFileTool::NAME, false) | (EditFileTool::NAME, true) => None,
2406 (StreamingEditFileTool::NAME, true) => {
2407 // Expose streaming tool as "edit_file"
2408 Some((SharedString::from(EditFileTool::NAME), tool.clone()))
2409 }
2410 _ => Some((truncate(tool_name), tool.clone())),
2411 }
2412 } else {
2413 None
2414 }
2415 })
2416 .collect::<BTreeMap<_, _>>();
2417
2418 let mut context_server_tools = Vec::new();
2419 let mut seen_tools = tools.keys().cloned().collect::<HashSet<_>>();
2420 let mut duplicate_tool_names = HashSet::default();
2421 for (server_id, server_tools) in self.context_server_registry.read(cx).servers() {
2422 for (tool_name, tool) in server_tools {
2423 if profile.is_context_server_tool_enabled(&server_id.0, &tool_name) {
2424 let tool_name = truncate(tool_name);
2425 if !seen_tools.insert(tool_name.clone()) {
2426 duplicate_tool_names.insert(tool_name.clone());
2427 }
2428 context_server_tools.push((server_id.clone(), tool_name, tool.clone()));
2429 }
2430 }
2431 }
2432
2433 // When there are duplicate tool names, disambiguate by prefixing them
2434 // with the server ID. In the rare case there isn't enough space for the
2435 // disambiguated tool name, keep only the last tool with this name.
2436 for (server_id, tool_name, tool) in context_server_tools {
2437 if duplicate_tool_names.contains(&tool_name) {
2438 let available = MAX_TOOL_NAME_LENGTH.saturating_sub(tool_name.len());
2439 if available >= 2 {
2440 let mut disambiguated = server_id.0.to_string();
2441 disambiguated.truncate(available - 1);
2442 disambiguated.push('_');
2443 disambiguated.push_str(&tool_name);
2444 tools.insert(disambiguated.into(), tool.clone());
2445 } else {
2446 tools.insert(tool_name, tool.clone());
2447 }
2448 } else {
2449 tools.insert(tool_name, tool.clone());
2450 }
2451 }
2452
2453 tools
2454 }
2455
2456 fn tool(&self, name: &str) -> Option<Arc<dyn AnyAgentTool>> {
2457 self.running_turn.as_ref()?.tools.get(name).cloned()
2458 }
2459
2460 pub fn has_tool(&self, name: &str) -> bool {
2461 self.running_turn
2462 .as_ref()
2463 .is_some_and(|turn| turn.tools.contains_key(name))
2464 }
2465
2466 #[cfg(any(test, feature = "test-support"))]
2467 pub fn has_registered_tool(&self, name: &str) -> bool {
2468 self.tools.contains_key(name)
2469 }
2470
2471 pub fn registered_tool_names(&self) -> Vec<SharedString> {
2472 self.tools.keys().cloned().collect()
2473 }
2474
2475 pub fn register_running_subagent(&mut self, subagent: WeakEntity<Thread>) {
2476 self.running_subagents.push(subagent);
2477 }
2478
2479 pub fn unregister_running_subagent(&mut self, subagent: &WeakEntity<Thread>) {
2480 self.running_subagents
2481 .retain(|s| s.entity_id() != subagent.entity_id());
2482 }
2483
2484 pub fn running_subagent_count(&self) -> usize {
2485 self.running_subagents
2486 .iter()
2487 .filter(|s| s.upgrade().is_some())
2488 .count()
2489 }
2490
2491 pub fn is_subagent(&self) -> bool {
2492 self.subagent_context.is_some()
2493 }
2494
2495 pub fn depth(&self) -> u8 {
2496 self.subagent_context.as_ref().map(|c| c.depth).unwrap_or(0)
2497 }
2498
2499 pub fn is_turn_complete(&self) -> bool {
2500 self.running_turn.is_none()
2501 }
2502
2503 pub fn submit_user_message(
2504 &mut self,
2505 content: impl Into<String>,
2506 cx: &mut Context<Self>,
2507 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
2508 let content = content.into();
2509 self.messages.push(Message::User(UserMessage {
2510 id: UserMessageId::new(),
2511 content: vec![UserMessageContent::Text(content)],
2512 }));
2513 cx.notify();
2514 self.send_existing(cx)
2515 }
2516
2517 pub fn interrupt_for_summary(
2518 &mut self,
2519 cx: &mut Context<Self>,
2520 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
2521 let context = self
2522 .subagent_context
2523 .as_ref()
2524 .context("Not a subagent thread")?;
2525 let prompt = context.context_low_prompt.clone();
2526 self.cancel(cx).detach();
2527 self.submit_user_message(prompt, cx)
2528 }
2529
2530 pub fn request_final_summary(
2531 &mut self,
2532 cx: &mut Context<Self>,
2533 ) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>> {
2534 let context = self
2535 .subagent_context
2536 .as_ref()
2537 .context("Not a subagent thread")?;
2538 let prompt = context.summary_prompt.clone();
2539 self.submit_user_message(prompt, cx)
2540 }
2541
2542 fn build_request_messages(
2543 &self,
2544 available_tools: Vec<SharedString>,
2545 cx: &App,
2546 ) -> Vec<LanguageModelRequestMessage> {
2547 log::trace!(
2548 "Building request messages from {} thread messages",
2549 self.messages.len()
2550 );
2551
2552 let system_prompt = SystemPromptTemplate {
2553 project: self.project_context.read(cx),
2554 available_tools,
2555 model_name: self.model.as_ref().map(|m| m.name().0.to_string()),
2556 }
2557 .render(&self.templates)
2558 .context("failed to build system prompt")
2559 .expect("Invalid template");
2560 let mut messages = vec![LanguageModelRequestMessage {
2561 role: Role::System,
2562 content: vec![system_prompt.into()],
2563 cache: false,
2564 reasoning_details: None,
2565 }];
2566 for message in &self.messages {
2567 messages.extend(message.to_request());
2568 }
2569
2570 if let Some(last_message) = messages.last_mut() {
2571 last_message.cache = true;
2572 }
2573
2574 if let Some(message) = self.pending_message.as_ref() {
2575 messages.extend(message.to_request());
2576 }
2577
2578 messages
2579 }
2580
2581 pub fn to_markdown(&self) -> String {
2582 let mut markdown = String::new();
2583 for (ix, message) in self.messages.iter().enumerate() {
2584 if ix > 0 {
2585 markdown.push('\n');
2586 }
2587 markdown.push_str(&message.to_markdown());
2588 }
2589
2590 if let Some(message) = self.pending_message.as_ref() {
2591 markdown.push('\n');
2592 markdown.push_str(&message.to_markdown());
2593 }
2594
2595 markdown
2596 }
2597
2598 fn advance_prompt_id(&mut self) {
2599 self.prompt_id = PromptId::new();
2600 }
2601
2602 fn retry_strategy_for(error: &LanguageModelCompletionError) -> Option<RetryStrategy> {
2603 use LanguageModelCompletionError::*;
2604 use http_client::StatusCode;
2605
2606 // General strategy here:
2607 // - If retrying won't help (e.g. invalid API key or payload too large), return None so we don't retry at all.
2608 // - If it's a time-based issue (e.g. server overloaded, rate limit exceeded), retry up to 4 times with exponential backoff.
2609 // - If it's an issue that *might* be fixed by retrying (e.g. internal server error), retry up to 3 times.
2610 match error {
2611 HttpResponseError {
2612 status_code: StatusCode::TOO_MANY_REQUESTS,
2613 ..
2614 } => Some(RetryStrategy::ExponentialBackoff {
2615 initial_delay: BASE_RETRY_DELAY,
2616 max_attempts: MAX_RETRY_ATTEMPTS,
2617 }),
2618 ServerOverloaded { retry_after, .. } | RateLimitExceeded { retry_after, .. } => {
2619 Some(RetryStrategy::Fixed {
2620 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2621 max_attempts: MAX_RETRY_ATTEMPTS,
2622 })
2623 }
2624 UpstreamProviderError {
2625 status,
2626 retry_after,
2627 ..
2628 } => match *status {
2629 StatusCode::TOO_MANY_REQUESTS | StatusCode::SERVICE_UNAVAILABLE => {
2630 Some(RetryStrategy::Fixed {
2631 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2632 max_attempts: MAX_RETRY_ATTEMPTS,
2633 })
2634 }
2635 StatusCode::INTERNAL_SERVER_ERROR => Some(RetryStrategy::Fixed {
2636 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2637 // Internal Server Error could be anything, retry up to 3 times.
2638 max_attempts: 3,
2639 }),
2640 status => {
2641 // There is no StatusCode variant for the unofficial HTTP 529 ("The service is overloaded"),
2642 // but we frequently get them in practice. See https://http.dev/529
2643 if status.as_u16() == 529 {
2644 Some(RetryStrategy::Fixed {
2645 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2646 max_attempts: MAX_RETRY_ATTEMPTS,
2647 })
2648 } else {
2649 Some(RetryStrategy::Fixed {
2650 delay: retry_after.unwrap_or(BASE_RETRY_DELAY),
2651 max_attempts: 2,
2652 })
2653 }
2654 }
2655 },
2656 ApiInternalServerError { .. } => Some(RetryStrategy::Fixed {
2657 delay: BASE_RETRY_DELAY,
2658 max_attempts: 3,
2659 }),
2660 ApiReadResponseError { .. }
2661 | HttpSend { .. }
2662 | DeserializeResponse { .. }
2663 | BadRequestFormat { .. } => Some(RetryStrategy::Fixed {
2664 delay: BASE_RETRY_DELAY,
2665 max_attempts: 3,
2666 }),
2667 // Retrying these errors definitely shouldn't help.
2668 HttpResponseError {
2669 status_code:
2670 StatusCode::PAYLOAD_TOO_LARGE | StatusCode::FORBIDDEN | StatusCode::UNAUTHORIZED,
2671 ..
2672 }
2673 | AuthenticationError { .. }
2674 | PermissionError { .. }
2675 | NoApiKey { .. }
2676 | ApiEndpointNotFound { .. }
2677 | PromptTooLarge { .. } => None,
2678 // These errors might be transient, so retry them
2679 SerializeRequest { .. } | BuildRequestBody { .. } => Some(RetryStrategy::Fixed {
2680 delay: BASE_RETRY_DELAY,
2681 max_attempts: 1,
2682 }),
2683 // Retry all other 4xx and 5xx errors once.
2684 HttpResponseError { status_code, .. }
2685 if status_code.is_client_error() || status_code.is_server_error() =>
2686 {
2687 Some(RetryStrategy::Fixed {
2688 delay: BASE_RETRY_DELAY,
2689 max_attempts: 3,
2690 })
2691 }
2692 Other(err) if err.is::<language_model::PaymentRequiredError>() => {
2693 // Retrying won't help for Payment Required errors.
2694 None
2695 }
2696 // Conservatively assume that any other errors are non-retryable
2697 HttpResponseError { .. } | Other(..) => Some(RetryStrategy::Fixed {
2698 delay: BASE_RETRY_DELAY,
2699 max_attempts: 2,
2700 }),
2701 }
2702 }
2703}
2704
2705struct RunningTurn {
2706 /// Holds the task that handles agent interaction until the end of the turn.
2707 /// Survives across multiple requests as the model performs tool calls and
2708 /// we run tools, report their results.
2709 _task: Task<()>,
2710 /// The current event stream for the running turn. Used to report a final
2711 /// cancellation event if we cancel the turn.
2712 event_stream: ThreadEventStream,
2713 /// The tools that were enabled for this turn.
2714 tools: BTreeMap<SharedString, Arc<dyn AnyAgentTool>>,
2715 /// Sender to signal tool cancellation. When cancel is called, this is
2716 /// set to true so all tools can detect user-initiated cancellation.
2717 cancellation_tx: watch::Sender<bool>,
2718}
2719
2720impl RunningTurn {
2721 fn cancel(mut self) -> Task<()> {
2722 log::debug!("Cancelling in progress turn");
2723 self.cancellation_tx.send(true).ok();
2724 self.event_stream.send_canceled();
2725 self._task
2726 }
2727}
2728
2729pub struct TokenUsageUpdated(pub Option<acp_thread::TokenUsage>);
2730
2731impl EventEmitter<TokenUsageUpdated> for Thread {}
2732
2733pub struct TitleUpdated;
2734
2735impl EventEmitter<TitleUpdated> for Thread {}
2736
2737pub trait AgentTool
2738where
2739 Self: 'static + Sized,
2740{
2741 type Input: for<'de> Deserialize<'de> + Serialize + JsonSchema;
2742 type Output: for<'de> Deserialize<'de> + Serialize + Into<LanguageModelToolResultContent>;
2743
2744 const NAME: &'static str;
2745
2746 fn description() -> SharedString {
2747 let schema = schemars::schema_for!(Self::Input);
2748 SharedString::new(
2749 schema
2750 .get("description")
2751 .and_then(|description| description.as_str())
2752 .unwrap_or_default(),
2753 )
2754 }
2755
2756 fn kind() -> acp::ToolKind;
2757
2758 /// The initial tool title to display. Can be updated during the tool run.
2759 fn initial_title(
2760 &self,
2761 input: Result<Self::Input, serde_json::Value>,
2762 cx: &mut App,
2763 ) -> SharedString;
2764
2765 /// Returns the JSON schema that describes the tool's input.
2766 fn input_schema(format: LanguageModelToolSchemaFormat) -> Schema {
2767 language_model::tool_schema::root_schema_for::<Self::Input>(format)
2768 }
2769
2770 /// Some tools rely on a provider for the underlying billing or other reasons.
2771 /// Allow the tool to check if they are compatible, or should be filtered out.
2772 fn supports_provider(_provider: &LanguageModelProviderId) -> bool {
2773 true
2774 }
2775
2776 /// Runs the tool with the provided input.
2777 fn run(
2778 self: Arc<Self>,
2779 input: Self::Input,
2780 event_stream: ToolCallEventStream,
2781 cx: &mut App,
2782 ) -> Task<Result<Self::Output>>;
2783
2784 /// Emits events for a previous execution of the tool.
2785 fn replay(
2786 &self,
2787 _input: Self::Input,
2788 _output: Self::Output,
2789 _event_stream: ToolCallEventStream,
2790 _cx: &mut App,
2791 ) -> Result<()> {
2792 Ok(())
2793 }
2794
2795 fn erase(self) -> Arc<dyn AnyAgentTool> {
2796 Arc::new(Erased(Arc::new(self)))
2797 }
2798
2799 /// Create a new instance of this tool bound to a different thread.
2800 /// This is used when creating subagents, so that tools like EditFileTool
2801 /// that hold a thread reference will use the subagent's thread instead
2802 /// of the parent's thread.
2803 /// Returns None if the tool doesn't need rebinding (most tools).
2804 fn rebind_thread(&self, _new_thread: WeakEntity<Thread>) -> Option<Arc<dyn AnyAgentTool>> {
2805 None
2806 }
2807}
2808
2809pub struct Erased<T>(T);
2810
2811pub struct AgentToolOutput {
2812 pub llm_output: LanguageModelToolResultContent,
2813 pub raw_output: serde_json::Value,
2814}
2815
2816pub trait AnyAgentTool {
2817 fn name(&self) -> SharedString;
2818 fn description(&self) -> SharedString;
2819 fn kind(&self) -> acp::ToolKind;
2820 fn initial_title(&self, input: serde_json::Value, _cx: &mut App) -> SharedString;
2821 fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value>;
2822 fn supports_provider(&self, _provider: &LanguageModelProviderId) -> bool {
2823 true
2824 }
2825 fn run(
2826 self: Arc<Self>,
2827 input: serde_json::Value,
2828 event_stream: ToolCallEventStream,
2829 cx: &mut App,
2830 ) -> Task<Result<AgentToolOutput>>;
2831 fn replay(
2832 &self,
2833 input: serde_json::Value,
2834 output: serde_json::Value,
2835 event_stream: ToolCallEventStream,
2836 cx: &mut App,
2837 ) -> Result<()>;
2838 /// Create a new instance of this tool bound to a different thread.
2839 /// This is used when creating subagents, so that tools like EditFileTool
2840 /// that hold a thread reference will use the subagent's thread instead
2841 /// of the parent's thread.
2842 /// Returns None if the tool doesn't need rebinding (most tools).
2843 fn rebind_thread(&self, _new_thread: WeakEntity<Thread>) -> Option<Arc<dyn AnyAgentTool>> {
2844 None
2845 }
2846}
2847
2848impl<T> AnyAgentTool for Erased<Arc<T>>
2849where
2850 T: AgentTool,
2851{
2852 fn name(&self) -> SharedString {
2853 T::NAME.into()
2854 }
2855
2856 fn description(&self) -> SharedString {
2857 T::description()
2858 }
2859
2860 fn kind(&self) -> agent_client_protocol::ToolKind {
2861 T::kind()
2862 }
2863
2864 fn initial_title(&self, input: serde_json::Value, _cx: &mut App) -> SharedString {
2865 let parsed_input = serde_json::from_value(input.clone()).map_err(|_| input);
2866 self.0.initial_title(parsed_input, _cx)
2867 }
2868
2869 fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
2870 let mut json = serde_json::to_value(T::input_schema(format))?;
2871 language_model::tool_schema::adapt_schema_to_format(&mut json, format)?;
2872 Ok(json)
2873 }
2874
2875 fn supports_provider(&self, provider: &LanguageModelProviderId) -> bool {
2876 T::supports_provider(provider)
2877 }
2878
2879 fn run(
2880 self: Arc<Self>,
2881 input: serde_json::Value,
2882 event_stream: ToolCallEventStream,
2883 cx: &mut App,
2884 ) -> Task<Result<AgentToolOutput>> {
2885 cx.spawn(async move |cx| {
2886 let input = serde_json::from_value(input)?;
2887 let output = cx
2888 .update(|cx| self.0.clone().run(input, event_stream, cx))
2889 .await?;
2890 let raw_output = serde_json::to_value(&output)?;
2891 Ok(AgentToolOutput {
2892 llm_output: output.into(),
2893 raw_output,
2894 })
2895 })
2896 }
2897
2898 fn replay(
2899 &self,
2900 input: serde_json::Value,
2901 output: serde_json::Value,
2902 event_stream: ToolCallEventStream,
2903 cx: &mut App,
2904 ) -> Result<()> {
2905 let input = serde_json::from_value(input)?;
2906 let output = serde_json::from_value(output)?;
2907 self.0.replay(input, output, event_stream, cx)
2908 }
2909
2910 fn rebind_thread(&self, new_thread: WeakEntity<Thread>) -> Option<Arc<dyn AnyAgentTool>> {
2911 self.0.rebind_thread(new_thread)
2912 }
2913}
2914
2915#[derive(Clone)]
2916struct ThreadEventStream(mpsc::UnboundedSender<Result<ThreadEvent>>);
2917
2918impl ThreadEventStream {
2919 fn send_user_message(&self, message: &UserMessage) {
2920 self.0
2921 .unbounded_send(Ok(ThreadEvent::UserMessage(message.clone())))
2922 .ok();
2923 }
2924
2925 fn send_text(&self, text: &str) {
2926 self.0
2927 .unbounded_send(Ok(ThreadEvent::AgentText(text.to_string())))
2928 .ok();
2929 }
2930
2931 fn send_thinking(&self, text: &str) {
2932 self.0
2933 .unbounded_send(Ok(ThreadEvent::AgentThinking(text.to_string())))
2934 .ok();
2935 }
2936
2937 fn send_tool_call(
2938 &self,
2939 id: &LanguageModelToolUseId,
2940 tool_name: &str,
2941 title: SharedString,
2942 kind: acp::ToolKind,
2943 input: serde_json::Value,
2944 ) {
2945 self.0
2946 .unbounded_send(Ok(ThreadEvent::ToolCall(Self::initial_tool_call(
2947 id,
2948 tool_name,
2949 title.to_string(),
2950 kind,
2951 input,
2952 ))))
2953 .ok();
2954 }
2955
2956 fn initial_tool_call(
2957 id: &LanguageModelToolUseId,
2958 tool_name: &str,
2959 title: String,
2960 kind: acp::ToolKind,
2961 input: serde_json::Value,
2962 ) -> acp::ToolCall {
2963 acp::ToolCall::new(id.to_string(), title)
2964 .kind(kind)
2965 .raw_input(input)
2966 .meta(acp_thread::meta_with_tool_name(tool_name))
2967 }
2968
2969 fn update_tool_call_fields(
2970 &self,
2971 tool_use_id: &LanguageModelToolUseId,
2972 fields: acp::ToolCallUpdateFields,
2973 ) {
2974 self.0
2975 .unbounded_send(Ok(ThreadEvent::ToolCallUpdate(
2976 acp::ToolCallUpdate::new(tool_use_id.to_string(), fields).into(),
2977 )))
2978 .ok();
2979 }
2980
2981 fn send_retry(&self, status: acp_thread::RetryStatus) {
2982 self.0.unbounded_send(Ok(ThreadEvent::Retry(status))).ok();
2983 }
2984
2985 fn send_stop(&self, reason: acp::StopReason) {
2986 self.0.unbounded_send(Ok(ThreadEvent::Stop(reason))).ok();
2987 }
2988
2989 fn send_canceled(&self) {
2990 self.0
2991 .unbounded_send(Ok(ThreadEvent::Stop(acp::StopReason::Cancelled)))
2992 .ok();
2993 }
2994
2995 fn send_error(&self, error: impl Into<anyhow::Error>) {
2996 self.0.unbounded_send(Err(error.into())).ok();
2997 }
2998}
2999
3000#[derive(Clone)]
3001pub struct ToolCallEventStream {
3002 tool_use_id: LanguageModelToolUseId,
3003 stream: ThreadEventStream,
3004 fs: Option<Arc<dyn Fs>>,
3005 cancellation_rx: watch::Receiver<bool>,
3006}
3007
3008impl ToolCallEventStream {
3009 #[cfg(any(test, feature = "test-support"))]
3010 pub fn test() -> (Self, ToolCallEventStreamReceiver) {
3011 let (stream, receiver, _cancellation_tx) = Self::test_with_cancellation();
3012 (stream, receiver)
3013 }
3014
3015 #[cfg(any(test, feature = "test-support"))]
3016 pub fn test_with_cancellation() -> (Self, ToolCallEventStreamReceiver, watch::Sender<bool>) {
3017 let (events_tx, events_rx) = mpsc::unbounded::<Result<ThreadEvent>>();
3018 let (cancellation_tx, cancellation_rx) = watch::channel(false);
3019
3020 let stream = ToolCallEventStream::new(
3021 "test_id".into(),
3022 ThreadEventStream(events_tx),
3023 None,
3024 cancellation_rx,
3025 );
3026
3027 (
3028 stream,
3029 ToolCallEventStreamReceiver(events_rx),
3030 cancellation_tx,
3031 )
3032 }
3033
3034 /// Signal cancellation for this event stream. Only available in tests.
3035 #[cfg(any(test, feature = "test-support"))]
3036 pub fn signal_cancellation_with_sender(cancellation_tx: &mut watch::Sender<bool>) {
3037 cancellation_tx.send(true).ok();
3038 }
3039
3040 fn new(
3041 tool_use_id: LanguageModelToolUseId,
3042 stream: ThreadEventStream,
3043 fs: Option<Arc<dyn Fs>>,
3044 cancellation_rx: watch::Receiver<bool>,
3045 ) -> Self {
3046 Self {
3047 tool_use_id,
3048 stream,
3049 fs,
3050 cancellation_rx,
3051 }
3052 }
3053
3054 /// Returns a future that resolves when the user cancels the tool call.
3055 /// Tools should select on this alongside their main work to detect user cancellation.
3056 pub fn cancelled_by_user(&self) -> impl std::future::Future<Output = ()> + '_ {
3057 let mut rx = self.cancellation_rx.clone();
3058 async move {
3059 loop {
3060 if *rx.borrow() {
3061 return;
3062 }
3063 if rx.changed().await.is_err() {
3064 // Sender dropped, will never be cancelled
3065 std::future::pending::<()>().await;
3066 }
3067 }
3068 }
3069 }
3070
3071 /// Returns true if the user has cancelled this tool call.
3072 /// This is useful for checking cancellation state after an operation completes,
3073 /// to determine if the completion was due to user cancellation.
3074 pub fn was_cancelled_by_user(&self) -> bool {
3075 *self.cancellation_rx.clone().borrow()
3076 }
3077
3078 pub fn tool_use_id(&self) -> &LanguageModelToolUseId {
3079 &self.tool_use_id
3080 }
3081
3082 pub fn update_fields(&self, fields: acp::ToolCallUpdateFields) {
3083 self.stream
3084 .update_tool_call_fields(&self.tool_use_id, fields);
3085 }
3086
3087 pub fn update_diff(&self, diff: Entity<acp_thread::Diff>) {
3088 self.stream
3089 .0
3090 .unbounded_send(Ok(ThreadEvent::ToolCallUpdate(
3091 acp_thread::ToolCallUpdateDiff {
3092 id: acp::ToolCallId::new(self.tool_use_id.to_string()),
3093 diff,
3094 }
3095 .into(),
3096 )))
3097 .ok();
3098 }
3099
3100 pub fn update_subagent_thread(&self, thread: Entity<acp_thread::AcpThread>) {
3101 self.stream
3102 .0
3103 .unbounded_send(Ok(ThreadEvent::ToolCallUpdate(
3104 acp_thread::ToolCallUpdateSubagentThread {
3105 id: acp::ToolCallId::new(self.tool_use_id.to_string()),
3106 thread,
3107 }
3108 .into(),
3109 )))
3110 .ok();
3111 }
3112
3113 /// Authorize a third-party tool (e.g., MCP tool from a context server).
3114 ///
3115 /// Unlike built-in tools, third-party tools don't support pattern-based permissions.
3116 /// They only support `default_mode` (allow/deny/confirm) per tool.
3117 ///
3118 /// Uses the dropdown authorization flow with two granularities:
3119 /// - "Always for <display_name> MCP tool" → sets `tools.<tool_id>.default_mode = "allow"` or "deny"
3120 /// - "Only this time" → allow/deny once
3121 pub fn authorize_third_party_tool(
3122 &self,
3123 title: impl Into<String>,
3124 tool_id: String,
3125 display_name: String,
3126 cx: &mut App,
3127 ) -> Task<Result<()>> {
3128 let settings = agent_settings::AgentSettings::get_global(cx);
3129
3130 let decision = decide_permission_from_settings(&tool_id, "", &settings);
3131
3132 match decision {
3133 ToolPermissionDecision::Allow => return Task::ready(Ok(())),
3134 ToolPermissionDecision::Deny(reason) => return Task::ready(Err(anyhow!(reason))),
3135 ToolPermissionDecision::Confirm => {}
3136 }
3137
3138 let (response_tx, response_rx) = oneshot::channel();
3139 if let Err(error) = self
3140 .stream
3141 .0
3142 .unbounded_send(Ok(ThreadEvent::ToolCallAuthorization(
3143 ToolCallAuthorization {
3144 tool_call: acp::ToolCallUpdate::new(
3145 self.tool_use_id.to_string(),
3146 acp::ToolCallUpdateFields::new().title(title.into()),
3147 ),
3148 options: acp_thread::PermissionOptions::Dropdown(vec![
3149 acp_thread::PermissionOptionChoice {
3150 allow: acp::PermissionOption::new(
3151 acp::PermissionOptionId::new(format!(
3152 "always_allow_mcp:{}",
3153 tool_id
3154 )),
3155 format!("Always for {} MCP tool", display_name),
3156 acp::PermissionOptionKind::AllowAlways,
3157 ),
3158 deny: acp::PermissionOption::new(
3159 acp::PermissionOptionId::new(format!(
3160 "always_deny_mcp:{}",
3161 tool_id
3162 )),
3163 format!("Always for {} MCP tool", display_name),
3164 acp::PermissionOptionKind::RejectAlways,
3165 ),
3166 },
3167 acp_thread::PermissionOptionChoice {
3168 allow: acp::PermissionOption::new(
3169 acp::PermissionOptionId::new("allow"),
3170 "Only this time",
3171 acp::PermissionOptionKind::AllowOnce,
3172 ),
3173 deny: acp::PermissionOption::new(
3174 acp::PermissionOptionId::new("deny"),
3175 "Only this time",
3176 acp::PermissionOptionKind::RejectOnce,
3177 ),
3178 },
3179 ]),
3180 response: response_tx,
3181 context: None,
3182 },
3183 )))
3184 {
3185 log::error!("Failed to send tool call authorization: {error}");
3186 return Task::ready(Err(anyhow!(
3187 "Failed to send tool call authorization: {error}"
3188 )));
3189 }
3190
3191 let fs = self.fs.clone();
3192 cx.spawn(async move |cx| {
3193 let response_str = response_rx.await?.0.to_string();
3194
3195 if response_str == format!("always_allow_mcp:{}", tool_id) {
3196 if let Some(fs) = fs.clone() {
3197 cx.update(|cx| {
3198 update_settings_file(fs, cx, move |settings, _| {
3199 settings
3200 .agent
3201 .get_or_insert_default()
3202 .set_tool_default_mode(&tool_id, ToolPermissionMode::Allow);
3203 });
3204 });
3205 }
3206 return Ok(());
3207 }
3208 if response_str == format!("always_deny_mcp:{}", tool_id) {
3209 if let Some(fs) = fs.clone() {
3210 cx.update(|cx| {
3211 update_settings_file(fs, cx, move |settings, _| {
3212 settings
3213 .agent
3214 .get_or_insert_default()
3215 .set_tool_default_mode(&tool_id, ToolPermissionMode::Deny);
3216 });
3217 });
3218 }
3219 return Err(anyhow!("Permission to run tool denied by user"));
3220 }
3221
3222 if response_str == "allow" {
3223 return Ok(());
3224 }
3225
3226 Err(anyhow!("Permission to run tool denied by user"))
3227 })
3228 }
3229
3230 pub fn authorize(
3231 &self,
3232 title: impl Into<String>,
3233 context: ToolPermissionContext,
3234 cx: &mut App,
3235 ) -> Task<Result<()>> {
3236 use settings::ToolPermissionMode;
3237
3238 let options = context.build_permission_options();
3239
3240 let (response_tx, response_rx) = oneshot::channel();
3241 if let Err(error) = self
3242 .stream
3243 .0
3244 .unbounded_send(Ok(ThreadEvent::ToolCallAuthorization(
3245 ToolCallAuthorization {
3246 tool_call: acp::ToolCallUpdate::new(
3247 self.tool_use_id.to_string(),
3248 acp::ToolCallUpdateFields::new().title(title.into()),
3249 ),
3250 options,
3251 response: response_tx,
3252 context: Some(context),
3253 },
3254 )))
3255 {
3256 log::error!("Failed to send tool call authorization: {error}");
3257 return Task::ready(Err(anyhow!(
3258 "Failed to send tool call authorization: {error}"
3259 )));
3260 }
3261
3262 let fs = self.fs.clone();
3263 cx.spawn(async move |cx| {
3264 let response_str = response_rx.await?.0.to_string();
3265
3266 // Handle "always allow tool" - e.g., "always_allow:terminal"
3267 if let Some(tool) = response_str.strip_prefix("always_allow:") {
3268 if let Some(fs) = fs.clone() {
3269 let tool = tool.to_string();
3270 cx.update(|cx| {
3271 update_settings_file(fs, cx, move |settings, _| {
3272 settings
3273 .agent
3274 .get_or_insert_default()
3275 .set_tool_default_mode(&tool, ToolPermissionMode::Allow);
3276 });
3277 });
3278 }
3279 return Ok(());
3280 }
3281
3282 // Handle "always deny tool" - e.g., "always_deny:terminal"
3283 if let Some(tool) = response_str.strip_prefix("always_deny:") {
3284 if let Some(fs) = fs.clone() {
3285 let tool = tool.to_string();
3286 cx.update(|cx| {
3287 update_settings_file(fs, cx, move |settings, _| {
3288 settings
3289 .agent
3290 .get_or_insert_default()
3291 .set_tool_default_mode(&tool, ToolPermissionMode::Deny);
3292 });
3293 });
3294 }
3295 return Err(anyhow!("Permission to run tool denied by user"));
3296 }
3297
3298 // Handle "always allow pattern" - e.g., "always_allow_pattern:mcp:server:tool\n^cargo\s"
3299 if let Some(rest) = response_str.strip_prefix("always_allow_pattern:") {
3300 if let Some((pattern_tool_name, pattern)) = rest.split_once('\n') {
3301 let pattern_tool_name = pattern_tool_name.to_string();
3302 let pattern = pattern.to_string();
3303 if let Some(fs) = fs.clone() {
3304 cx.update(|cx| {
3305 update_settings_file(fs, cx, move |settings, _| {
3306 settings
3307 .agent
3308 .get_or_insert_default()
3309 .add_tool_allow_pattern(&pattern_tool_name, pattern);
3310 });
3311 });
3312 }
3313 } else {
3314 log::error!("Failed to parse always allow pattern: missing newline separator in '{rest}'");
3315 }
3316 return Ok(());
3317 }
3318
3319 // Handle "always deny pattern" - e.g., "always_deny_pattern:mcp:server:tool\n^cargo\s"
3320 if let Some(rest) = response_str.strip_prefix("always_deny_pattern:") {
3321 if let Some((pattern_tool_name, pattern)) = rest.split_once('\n') {
3322 let pattern_tool_name = pattern_tool_name.to_string();
3323 let pattern = pattern.to_string();
3324 if let Some(fs) = fs.clone() {
3325 cx.update(|cx| {
3326 update_settings_file(fs, cx, move |settings, _| {
3327 settings
3328 .agent
3329 .get_or_insert_default()
3330 .add_tool_deny_pattern(&pattern_tool_name, pattern);
3331 });
3332 });
3333 }
3334 } else {
3335 log::error!("Failed to parse always deny pattern: missing newline separator in '{rest}'");
3336 }
3337 return Err(anyhow!("Permission to run tool denied by user"));
3338 }
3339
3340 // Handle simple "allow" (allow once)
3341 if response_str == "allow" {
3342 return Ok(());
3343 }
3344
3345 // Handle simple "deny" (deny once)
3346 Err(anyhow!("Permission to run tool denied by user"))
3347 })
3348 }
3349}
3350
3351#[cfg(any(test, feature = "test-support"))]
3352pub struct ToolCallEventStreamReceiver(mpsc::UnboundedReceiver<Result<ThreadEvent>>);
3353
3354#[cfg(any(test, feature = "test-support"))]
3355impl ToolCallEventStreamReceiver {
3356 pub async fn expect_authorization(&mut self) -> ToolCallAuthorization {
3357 let event = self.0.next().await;
3358 if let Some(Ok(ThreadEvent::ToolCallAuthorization(auth))) = event {
3359 auth
3360 } else {
3361 panic!("Expected ToolCallAuthorization but got: {:?}", event);
3362 }
3363 }
3364
3365 pub async fn expect_update_fields(&mut self) -> acp::ToolCallUpdateFields {
3366 let event = self.0.next().await;
3367 if let Some(Ok(ThreadEvent::ToolCallUpdate(acp_thread::ToolCallUpdate::UpdateFields(
3368 update,
3369 )))) = event
3370 {
3371 update.fields
3372 } else {
3373 panic!("Expected update fields but got: {:?}", event);
3374 }
3375 }
3376
3377 pub async fn expect_diff(&mut self) -> Entity<acp_thread::Diff> {
3378 let event = self.0.next().await;
3379 if let Some(Ok(ThreadEvent::ToolCallUpdate(acp_thread::ToolCallUpdate::UpdateDiff(
3380 update,
3381 )))) = event
3382 {
3383 update.diff
3384 } else {
3385 panic!("Expected diff but got: {:?}", event);
3386 }
3387 }
3388
3389 pub async fn expect_terminal(&mut self) -> Entity<acp_thread::Terminal> {
3390 let event = self.0.next().await;
3391 if let Some(Ok(ThreadEvent::ToolCallUpdate(acp_thread::ToolCallUpdate::UpdateTerminal(
3392 update,
3393 )))) = event
3394 {
3395 update.terminal
3396 } else {
3397 panic!("Expected terminal but got: {:?}", event);
3398 }
3399 }
3400}
3401
3402#[cfg(any(test, feature = "test-support"))]
3403impl std::ops::Deref for ToolCallEventStreamReceiver {
3404 type Target = mpsc::UnboundedReceiver<Result<ThreadEvent>>;
3405
3406 fn deref(&self) -> &Self::Target {
3407 &self.0
3408 }
3409}
3410
3411#[cfg(any(test, feature = "test-support"))]
3412impl std::ops::DerefMut for ToolCallEventStreamReceiver {
3413 fn deref_mut(&mut self) -> &mut Self::Target {
3414 &mut self.0
3415 }
3416}
3417
3418impl From<&str> for UserMessageContent {
3419 fn from(text: &str) -> Self {
3420 Self::Text(text.into())
3421 }
3422}
3423
3424impl UserMessageContent {
3425 pub fn from_content_block(value: acp::ContentBlock, path_style: PathStyle) -> Self {
3426 match value {
3427 acp::ContentBlock::Text(text_content) => Self::Text(text_content.text),
3428 acp::ContentBlock::Image(image_content) => Self::Image(convert_image(image_content)),
3429 acp::ContentBlock::Audio(_) => {
3430 // TODO
3431 Self::Text("[audio]".to_string())
3432 }
3433 acp::ContentBlock::ResourceLink(resource_link) => {
3434 match MentionUri::parse(&resource_link.uri, path_style) {
3435 Ok(uri) => Self::Mention {
3436 uri,
3437 content: String::new(),
3438 },
3439 Err(err) => {
3440 log::error!("Failed to parse mention link: {}", err);
3441 Self::Text(format!("[{}]({})", resource_link.name, resource_link.uri))
3442 }
3443 }
3444 }
3445 acp::ContentBlock::Resource(resource) => match resource.resource {
3446 acp::EmbeddedResourceResource::TextResourceContents(resource) => {
3447 match MentionUri::parse(&resource.uri, path_style) {
3448 Ok(uri) => Self::Mention {
3449 uri,
3450 content: resource.text,
3451 },
3452 Err(err) => {
3453 log::error!("Failed to parse mention link: {}", err);
3454 Self::Text(
3455 MarkdownCodeBlock {
3456 tag: &resource.uri,
3457 text: &resource.text,
3458 }
3459 .to_string(),
3460 )
3461 }
3462 }
3463 }
3464 acp::EmbeddedResourceResource::BlobResourceContents(_) => {
3465 // TODO
3466 Self::Text("[blob]".to_string())
3467 }
3468 other => {
3469 log::warn!("Unexpected content type: {:?}", other);
3470 Self::Text("[unknown]".to_string())
3471 }
3472 },
3473 other => {
3474 log::warn!("Unexpected content type: {:?}", other);
3475 Self::Text("[unknown]".to_string())
3476 }
3477 }
3478 }
3479}
3480
3481impl From<UserMessageContent> for acp::ContentBlock {
3482 fn from(content: UserMessageContent) -> Self {
3483 match content {
3484 UserMessageContent::Text(text) => text.into(),
3485 UserMessageContent::Image(image) => {
3486 acp::ContentBlock::Image(acp::ImageContent::new(image.source, "image/png"))
3487 }
3488 UserMessageContent::Mention { uri, content } => acp::ContentBlock::Resource(
3489 acp::EmbeddedResource::new(acp::EmbeddedResourceResource::TextResourceContents(
3490 acp::TextResourceContents::new(content, uri.to_uri().to_string()),
3491 )),
3492 ),
3493 }
3494 }
3495}
3496
3497fn convert_image(image_content: acp::ImageContent) -> LanguageModelImage {
3498 LanguageModelImage {
3499 source: image_content.data.into(),
3500 size: None,
3501 }
3502}