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Amazd 2026-06-27 14:41:52 +02:00 committed by GitHub
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7 changed files with 697 additions and 38 deletions

1
rust/Cargo.lock generated
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@ -2247,6 +2247,7 @@ dependencies = [
"crossterm",
"log",
"mock-anthropic-service",
"nix",
"plugins",
"pulldown-cmark",
"runtime",

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@ -1,5 +1,9 @@
use std::collections::BTreeMap;
use std::fmt::{Display, Formatter};
use std::sync::{
atomic::{AtomicBool, Ordering},
Arc,
};
use serde_json::{Map, Value};
use telemetry::SessionTracer;
@ -53,6 +57,41 @@ pub struct PromptCacheEvent {
pub token_drop: u32,
}
/// Shared flag used to request graceful interruption of a running turn.
///
/// Cloning shares the underlying flag, mirroring
/// [`HookAbortSignal`](crate::hooks::HookAbortSignal). An input listener
/// (e.g. Esc or Ctrl+C handling in the CLI) sets the flag while the
/// conversation loop and the streaming API client poll it at safe points.
/// When the flag is observed, the turn winds down without treating the
/// stop as a failure: pending tool calls receive synthesized error
/// results so the session stays consistent, and [`TurnSummary`] reports
/// `interrupted: true`.
#[derive(Debug, Clone, Default)]
pub struct TurnInterruptSignal {
interrupted: Arc<AtomicBool>,
}
impl TurnInterruptSignal {
#[must_use]
pub fn new() -> Self {
Self::default()
}
pub fn interrupt(&self) {
self.interrupted.store(true, Ordering::SeqCst);
}
#[must_use]
pub fn is_interrupted(&self) -> bool {
self.interrupted.load(Ordering::SeqCst)
}
pub fn reset(&self) {
self.interrupted.store(false, Ordering::SeqCst);
}
}
/// Minimal streaming API contract required by [`ConversationRuntime`].
pub trait ApiClient {
fn stream(&mut self, request: ApiRequest) -> Result<Vec<AssistantEvent>, RuntimeError>;
@ -118,6 +157,7 @@ pub struct TurnSummary {
pub iterations: usize,
pub usage: TokenUsage,
pub auto_compaction: Option<AutoCompactionEvent>,
pub interrupted: bool,
}
/// Details about automatic session compaction applied during a turn.
@ -138,6 +178,7 @@ pub struct ConversationRuntime<C, T> {
hook_runner: HookRunner,
auto_compaction_input_tokens_threshold: u32,
hook_abort_signal: HookAbortSignal,
turn_interrupt_signal: TurnInterruptSignal,
hook_progress_reporter: Option<Box<dyn HookProgressReporter>>,
session_tracer: Option<SessionTracer>,
}
@ -187,6 +228,7 @@ where
hook_runner: HookRunner::from_feature_config(feature_config),
auto_compaction_input_tokens_threshold: auto_compaction_threshold_from_env(),
hook_abort_signal: HookAbortSignal::default(),
turn_interrupt_signal: TurnInterruptSignal::default(),
hook_progress_reporter: None,
session_tracer: None,
}
@ -217,6 +259,15 @@ where
self
}
#[must_use]
pub fn with_turn_interrupt_signal(
mut self,
turn_interrupt_signal: TurnInterruptSignal,
) -> Self {
self.turn_interrupt_signal = turn_interrupt_signal;
self
}
#[must_use]
pub fn with_hook_progress_reporter(
mut self,
@ -350,8 +401,14 @@ where
let mut prompt_cache_events = Vec::new();
let mut iterations = 0;
let mut auto_compaction = None;
let mut interrupted = false;
loop {
if self.turn_interrupt_signal.is_interrupted() {
self.record_turn_interrupted(iterations, "before_request");
interrupted = true;
break;
}
iterations += 1;
if iterations > self.max_iterations {
let error = RuntimeError::new(
@ -368,6 +425,14 @@ where
let events = match self.api_client.stream(request) {
Ok(events) => events,
Err(error) => {
if self.turn_interrupt_signal.is_interrupted() {
// The client aborted because the user interrupted the
// turn; any partial response is discarded and the stop
// is reported as an interruption rather than a failure.
self.record_turn_interrupted(iterations, "during_request");
interrupted = true;
break;
}
self.record_turn_failed(iterations, &error);
return Err(error);
}
@ -416,6 +481,25 @@ where
}
for (tool_use_id, tool_name, input) in pending_tool_uses {
if interrupted || self.turn_interrupt_signal.is_interrupted() {
// Every pending tool_use must still receive a tool_result
// so the session stays valid for the next request.
if !interrupted {
self.record_turn_interrupted(iterations, "before_tool");
interrupted = true;
}
let result_message = ConversationMessage::tool_result(
tool_use_id,
tool_name,
"Interrupted by user before this tool could run.",
true,
);
self.session
.push_message(result_message.clone())
.map_err(|error| RuntimeError::new(error.to_string()))?;
tool_results.push(result_message);
continue;
}
let pre_hook_result = self.run_pre_tool_use_hook(&tool_name, &input);
let effective_input = pre_hook_result
.updated_input()
@ -515,6 +599,10 @@ where
self.record_tool_finished(iterations, &result_message);
tool_results.push(result_message);
}
if interrupted {
break;
}
}
let summary = TurnSummary {
@ -524,8 +612,11 @@ where
iterations,
usage: self.usage_tracker.cumulative_usage(),
auto_compaction,
interrupted,
};
self.record_turn_completed(&summary);
if !interrupted {
self.record_turn_completed(&summary);
}
Ok(summary)
}
@ -689,6 +780,17 @@ where
session_tracer.record("turn_completed", attributes);
}
fn record_turn_interrupted(&self, iteration: usize, phase: &str) {
let Some(session_tracer) = &self.session_tracer else {
return;
};
let mut attributes = Map::new();
attributes.insert("iteration".to_string(), Value::from(iteration as u64));
attributes.insert("phase".to_string(), Value::String(phase.to_string()));
session_tracer.record("turn_interrupted", attributes);
}
fn record_turn_failed(&self, iteration: usize, error: &RuntimeError) {
let Some(session_tracer) = &self.session_tracer else {
return;
@ -850,7 +952,8 @@ mod tests {
use super::{
build_assistant_message, parse_auto_compaction_threshold, ApiClient, ApiRequest,
AssistantEvent, AutoCompactionEvent, ConversationRuntime, PromptCacheEvent, RuntimeError,
StaticToolExecutor, ToolExecutor, DEFAULT_AUTO_COMPACTION_INPUT_TOKENS_THRESHOLD,
StaticToolExecutor, ToolExecutor, TurnInterruptSignal,
DEFAULT_AUTO_COMPACTION_INPUT_TOKENS_THRESHOLD,
};
use crate::compact::CompactionConfig;
use crate::config::{RuntimeFeatureConfig, RuntimeHookConfig};
@ -1875,4 +1978,165 @@ mod tests {
// then
assert_eq!(error.to_string(), "upstream failed");
}
#[test]
fn interrupt_before_first_request_skips_the_api_call() {
struct UnreachableApi;
impl ApiClient for UnreachableApi {
fn stream(
&mut self,
_request: ApiRequest,
) -> Result<Vec<AssistantEvent>, RuntimeError> {
unreachable!("interrupted turn must not reach the API")
}
}
// given
let interrupt = TurnInterruptSignal::new();
interrupt.interrupt();
let mut runtime = ConversationRuntime::new(
Session::new(),
UnreachableApi,
StaticToolExecutor::new(),
PermissionPolicy::new(PermissionMode::DangerFullAccess),
vec!["system".to_string()],
)
.with_turn_interrupt_signal(interrupt);
// when
let summary = runtime
.run_turn("hello", None)
.expect("interruption should not be reported as a failure");
// then
assert!(summary.interrupted);
assert_eq!(summary.iterations, 0);
assert!(summary.assistant_messages.is_empty());
assert!(summary.tool_results.is_empty());
assert_eq!(summary.auto_compaction, None);
assert_eq!(runtime.session().messages.len(), 1);
assert_eq!(runtime.session().messages[0].role, MessageRole::User);
}
#[test]
fn interrupt_after_stream_synthesizes_results_for_pending_tools() {
struct ToolUseApi {
interrupt: TurnInterruptSignal,
}
impl ApiClient for ToolUseApi {
fn stream(
&mut self,
_request: ApiRequest,
) -> Result<Vec<AssistantEvent>, RuntimeError> {
// Simulate the user pressing Esc while the response streams in.
self.interrupt.interrupt();
Ok(vec![
AssistantEvent::TextDelta("Running the tool.".to_string()),
AssistantEvent::ToolUse {
id: "tool-1".to_string(),
name: "add".to_string(),
input: "2,2".to_string(),
},
AssistantEvent::MessageStop,
])
}
}
// given
let interrupt = TurnInterruptSignal::new();
let mut runtime = ConversationRuntime::new(
Session::new(),
ToolUseApi {
interrupt: interrupt.clone(),
},
StaticToolExecutor::new()
.register("add", |_input| panic!("interrupted tool must not run")),
PermissionPolicy::new(PermissionMode::DangerFullAccess),
vec!["system".to_string()],
)
.with_turn_interrupt_signal(interrupt);
// when
let summary = runtime
.run_turn("what is 2 + 2?", None)
.expect("interruption should not be reported as a failure");
// then
assert!(summary.interrupted);
assert_eq!(summary.iterations, 1);
assert_eq!(summary.assistant_messages.len(), 1);
assert_eq!(summary.tool_results.len(), 1);
assert!(matches!(
&summary.tool_results[0].blocks[0],
ContentBlock::ToolResult {
tool_use_id,
is_error: true,
output,
..
} if tool_use_id == "tool-1" && output.contains("Interrupted by user")
));
// user text, assistant tool_use, synthesized tool_result
assert_eq!(runtime.session().messages.len(), 3);
assert!(matches!(
runtime.session().messages[2].blocks[0],
ContentBlock::ToolResult { is_error: true, .. }
));
}
#[test]
fn stream_error_during_interrupt_is_reported_as_interruption() {
struct AbortedApi {
interrupt: TurnInterruptSignal,
}
impl ApiClient for AbortedApi {
fn stream(
&mut self,
_request: ApiRequest,
) -> Result<Vec<AssistantEvent>, RuntimeError> {
// Simulate the streaming client aborting the connection after
// observing the interrupt flag mid-stream.
self.interrupt.interrupt();
Err(RuntimeError::new("request aborted"))
}
}
// given
let sink = Arc::new(MemoryTelemetrySink::default());
let tracer = SessionTracer::new("session-interrupt", sink.clone());
let interrupt = TurnInterruptSignal::new();
let mut runtime = ConversationRuntime::new(
Session::new(),
AbortedApi {
interrupt: interrupt.clone(),
},
StaticToolExecutor::new(),
PermissionPolicy::new(PermissionMode::DangerFullAccess),
vec!["system".to_string()],
)
.with_turn_interrupt_signal(interrupt)
.with_session_tracer(tracer);
// when
let summary = runtime
.run_turn("hello", None)
.expect("interrupt-driven aborts should not surface as errors");
// then
assert!(summary.interrupted);
assert!(summary.assistant_messages.is_empty());
let trace_names = sink
.events()
.iter()
.filter_map(|event| match event {
TelemetryEvent::SessionTrace(trace) => Some(trace.name.clone()),
_ => None,
})
.collect::<Vec<_>>();
assert!(trace_names.iter().any(|name| name == "turn_interrupted"));
assert!(!trace_names.iter().any(|name| name == "turn_failed"));
assert!(!trace_names.iter().any(|name| name == "turn_completed"));
}
}

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@ -82,7 +82,7 @@ pub use config_validate::{
pub use conversation::{
auto_compaction_threshold_from_env, ApiClient, ApiRequest, AssistantEvent, AutoCompactionEvent,
ConversationRuntime, PromptCacheEvent, RuntimeError, StaticToolExecutor, ToolError,
ToolExecutor, TurnSummary,
ToolExecutor, TurnInterruptSignal, TurnSummary,
};
pub use file_ops::{
edit_file, edit_file_in_workspace, glob_search, glob_search_in_workspace, grep_search,

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@ -34,6 +34,9 @@ pub enum WorkerStatus {
ToolPermissionRequired,
ReadyForPrompt,
Running,
/// The user stopped the turn mid-run (e.g. Esc or Ctrl+C); the worker
/// is back at the prompt with the session intact.
Interrupted,
Finished,
Failed,
}
@ -46,6 +49,7 @@ impl std::fmt::Display for WorkerStatus {
Self::ToolPermissionRequired => write!(f, "tool_permission_required"),
Self::ReadyForPrompt => write!(f, "ready_for_prompt"),
Self::Running => write!(f, "running"),
Self::Interrupted => write!(f, "interrupted"),
Self::Finished => write!(f, "finished"),
Self::Failed => write!(f, "failed"),
}
@ -82,6 +86,7 @@ pub enum WorkerEventKind {
PromptMisdelivery,
PromptReplayArmed,
Running,
Interrupted,
Restarted,
Finished,
Failed,
@ -1461,6 +1466,23 @@ mod tests {
use std::fs;
use std::process::Command;
#[test]
fn interrupted_status_serializes_and_displays_as_snake_case() {
assert_eq!(WorkerStatus::Interrupted.to_string(), "interrupted");
assert_eq!(
serde_json::to_string(&WorkerStatus::Interrupted).expect("should serialize"),
"\"interrupted\""
);
assert_eq!(
serde_json::from_str::<WorkerStatus>("\"interrupted\"").expect("should deserialize"),
WorkerStatus::Interrupted
);
assert_eq!(
serde_json::to_string(&WorkerEventKind::Interrupted).expect("should serialize"),
"\"interrupted\""
);
}
#[test]
fn allowlisted_trust_prompt_auto_resolves_then_reaches_ready_state() {
let registry = WorkerRegistry::new();

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@ -24,6 +24,8 @@ tokio = { version = "1", features = ["rt-multi-thread", "signal", "time"] }
tools = { path = "../tools" }
log = "0.4"
[target.'cfg(unix)'.dependencies]
nix = { version = "0.29", features = ["term", "poll"] }
[lints]
workspace = true

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@ -0,0 +1,280 @@
//! Esc-key interruption for running turns.
//!
//! While a turn runs, the main thread is blocked inside the conversation
//! loop, so rustyline is not reading the keyboard. This module spawns a
//! listener thread that switches stdin to a minimal non-canonical mode
//! (line buffering and echo off; signal handling and output processing
//! stay enabled, unlike full raw mode) and watches for a lone Escape
//! byte. When one arrives it trips the shared [`TurnInterruptSignal`],
//! which the conversation loop and the streaming API client poll to wind
//! the turn down gracefully.
//!
//! Permission prompts read whole lines from stdin mid-turn, so stdin
//! ownership is coordinated through [`StdinPromptGate`]: while a prompt
//! holds a lease, the listener restores canonical mode and stops
//! consuming bytes.
use std::io::IsTerminal;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::{Arc, Mutex, PoisonError};
use std::thread::JoinHandle;
use runtime::TurnInterruptSignal;
/// Terminal-mode bookkeeping guarded by the gate mutex. `saved` holds the
/// canonical-mode termios while non-canonical mode is active.
#[derive(Default)]
struct TtyMode {
#[cfg(unix)]
saved: Option<nix::sys::termios::Termios>,
}
#[derive(Default)]
struct GateState {
/// True while a permission prompt owns stdin.
busy: AtomicBool,
/// Tells the listener thread to exit at the end of the turn.
stop: AtomicBool,
/// Serializes stdin reads and terminal-mode flips.
mode: Mutex<TtyMode>,
}
/// Classification of one chunk of bytes read from the terminal.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum EscClassification {
/// A bare ESC byte: the user pressed the Escape key.
LoneEscape,
/// ESC followed by more bytes: the prefix of a terminal escape
/// sequence such as an arrow or function key.
EscapeSequence,
/// Anything else (regular type-ahead, control characters, ...).
Other,
}
#[cfg_attr(not(unix), allow(dead_code))]
fn classify_escape_chunk(bytes: &[u8]) -> EscClassification {
match bytes {
[0x1b] => EscClassification::LoneEscape,
[0x1b, ..] => EscClassification::EscapeSequence,
_ => EscClassification::Other,
}
}
/// Hands exclusive stdin ownership to interactive prompts while the
/// Esc listener is running.
#[derive(Clone)]
pub struct StdinPromptGate {
shared: Arc<GateState>,
}
impl StdinPromptGate {
/// Takes stdin away from the Esc listener for the lifetime of the
/// returned lease: the terminal returns to canonical mode so a
/// line-based prompt (e.g. the permission approval prompt) behaves
/// normally. Listening resumes when the lease is dropped.
pub fn lease(&self) -> StdinPromptLease<'_> {
self.shared.busy.store(true, Ordering::SeqCst);
// Wait for the listener's current poll cycle to release the
// terminal, then restore canonical mode for line input.
#[allow(unused_mut)]
let mut mode = self
.shared
.mode
.lock()
.unwrap_or_else(PoisonError::into_inner);
#[cfg(unix)]
tty::restore(&mut mode);
drop(mode);
StdinPromptLease {
shared: &self.shared,
}
}
}
/// RAII lease returned by [`StdinPromptGate::lease`].
pub struct StdinPromptLease<'a> {
shared: &'a GateState,
}
impl Drop for StdinPromptLease<'_> {
fn drop(&mut self) {
self.shared.busy.store(false, Ordering::SeqCst);
}
}
/// Background listener that maps a lone Esc keypress to
/// [`TurnInterruptSignal::interrupt`].
pub struct EscapeInterruptMonitor {
shared: Arc<GateState>,
join_handle: Option<JoinHandle<()>>,
}
impl EscapeInterruptMonitor {
/// Spawns the listener for the duration of one turn. Returns `None`
/// when stdin is not an interactive terminal or the platform does not
/// support terminal-mode switching; Ctrl+C interruption still works
/// in those cases.
pub fn spawn(signal: TurnInterruptSignal) -> Option<(Self, StdinPromptGate)> {
if !std::io::stdin().is_terminal() {
return None;
}
#[cfg(not(unix))]
{
let _ = signal;
None
}
#[cfg(unix)]
{
let shared = Arc::new(GateState::default());
let thread_shared = Arc::clone(&shared);
let join_handle = std::thread::spawn(move || listener_loop(&thread_shared, &signal));
let gate = StdinPromptGate {
shared: Arc::clone(&shared),
};
Some((
Self {
shared,
join_handle: Some(join_handle),
},
gate,
))
}
}
/// Stops the listener and restores the terminal before control
/// returns to the line editor.
pub fn stop(mut self) {
self.shared.stop.store(true, Ordering::SeqCst);
if let Some(join_handle) = self.join_handle.take() {
let _ = join_handle.join();
}
}
}
#[cfg(unix)]
fn listener_loop(shared: &GateState, signal: &TurnInterruptSignal) {
let mut buffer = [0u8; 64];
while !shared.stop.load(Ordering::SeqCst) {
if shared.busy.load(Ordering::SeqCst) {
std::thread::sleep(std::time::Duration::from_millis(25));
continue;
}
let mut mode = shared.mode.lock().unwrap_or_else(PoisonError::into_inner);
if shared.busy.load(Ordering::SeqCst) || shared.stop.load(Ordering::SeqCst) {
continue;
}
if !tty::enable_noncanonical(&mut mode) {
// Terminal refused the mode switch; Esc support is
// unavailable for this turn but Ctrl+C still works.
return;
}
if !tty::wait_readable(100) {
continue;
}
let count = tty::read_pending(&mut buffer);
if classify_escape_chunk(&buffer[..count]) == EscClassification::LoneEscape {
// A slow terminal may split an escape sequence across reads;
// only treat ESC as the Esc key when nothing follows it.
if tty::wait_readable(50) {
let _ = tty::read_pending(&mut buffer);
continue;
}
signal.interrupt();
}
// Other bytes are intentionally swallowed: type-ahead is not
// preserved while a turn is running.
}
let mut mode = shared.mode.lock().unwrap_or_else(PoisonError::into_inner);
tty::restore(&mut mode);
}
#[cfg(unix)]
mod tty {
use std::os::fd::{AsFd, AsRawFd};
use nix::poll::{poll, PollFd, PollFlags, PollTimeout};
use nix::sys::termios::{self, LocalFlags, SetArg, SpecialCharacterIndices};
use super::TtyMode;
/// Disables line buffering and echo while leaving signal generation
/// (ISIG) and output post-processing (OPOST) untouched, so Ctrl+C and
/// streamed output keep working. No-op when already active.
pub(super) fn enable_noncanonical(mode: &mut TtyMode) -> bool {
if mode.saved.is_some() {
return true;
}
let stdin = std::io::stdin();
let Ok(saved) = termios::tcgetattr(&stdin) else {
return false;
};
let mut noncanonical = saved.clone();
noncanonical.local_flags &= !(LocalFlags::ICANON | LocalFlags::ECHO);
noncanonical.control_chars[SpecialCharacterIndices::VMIN as usize] = 0;
noncanonical.control_chars[SpecialCharacterIndices::VTIME as usize] = 0;
if termios::tcsetattr(&stdin, SetArg::TCSANOW, &noncanonical).is_err() {
return false;
}
mode.saved = Some(saved);
true
}
pub(super) fn restore(mode: &mut TtyMode) {
if let Some(saved) = mode.saved.take() {
let _ = termios::tcsetattr(std::io::stdin(), SetArg::TCSANOW, &saved);
}
}
pub(super) fn wait_readable(timeout_ms: u16) -> bool {
let stdin = std::io::stdin();
let mut fds = [PollFd::new(stdin.as_fd(), PollFlags::POLLIN)];
matches!(poll(&mut fds, PollTimeout::from(timeout_ms)), Ok(ready) if ready > 0)
&& fds[0]
.revents()
.is_some_and(|revents| revents.contains(PollFlags::POLLIN))
}
pub(super) fn read_pending(buffer: &mut [u8]) -> usize {
nix::unistd::read(std::io::stdin().as_raw_fd(), buffer).unwrap_or(0)
}
}
#[cfg(test)]
mod tests {
use super::{classify_escape_chunk, EscClassification};
#[test]
fn lone_escape_byte_is_the_esc_key() {
assert_eq!(
classify_escape_chunk(&[0x1b]),
EscClassification::LoneEscape
);
}
#[test]
fn escape_followed_by_more_bytes_is_a_sequence() {
// Up arrow: ESC [ A
assert_eq!(
classify_escape_chunk(&[0x1b, 0x5b, 0x41]),
EscClassification::EscapeSequence
);
// Alt+f style: ESC f
assert_eq!(
classify_escape_chunk(&[0x1b, b'f']),
EscClassification::EscapeSequence
);
}
#[test]
fn regular_bytes_are_ignored() {
assert_eq!(classify_escape_chunk(b"hello"), EscClassification::Other);
assert_eq!(classify_escape_chunk(&[]), EscClassification::Other);
assert_eq!(classify_escape_chunk(&[0x03]), EscClassification::Other);
}
}

View File

@ -16,6 +16,7 @@
)]
mod init;
mod input;
mod interrupt;
mod render;
mod setup_wizard;
@ -7194,6 +7195,18 @@ impl BuiltRuntime {
self
}
fn with_turn_interrupt_signal(mut self, signal: runtime::TurnInterruptSignal) -> Self {
let mut runtime = self
.runtime
.take()
.expect("runtime should exist before installing turn interrupt signal");
runtime
.api_client_mut()
.set_turn_interrupt_signal(signal.clone());
self.runtime = Some(runtime.with_turn_interrupt_signal(signal));
self
}
fn shutdown_plugins(&mut self) -> Result<(), Box<dyn std::error::Error>> {
if self.plugins_active {
self.plugin_registry.shutdown()?;
@ -7576,7 +7589,10 @@ struct HookAbortMonitor {
}
impl HookAbortMonitor {
fn spawn(abort_signal: runtime::HookAbortSignal) -> Self {
fn spawn(
abort_signal: runtime::HookAbortSignal,
turn_interrupt_signal: runtime::TurnInterruptSignal,
) -> Self {
Self::spawn_with_waiter(abort_signal, move |stop_rx, abort_signal| {
let Ok(runtime) = tokio::runtime::Builder::new_current_thread()
.enable_all()
@ -7593,7 +7609,11 @@ impl HookAbortMonitor {
tokio::select! {
result = tokio::signal::ctrl_c() => {
if result.is_ok() {
// Ctrl+C stops the whole turn, not just running
// hooks: the conversation loop and the streaming
// client both poll the turn interrupt signal.
abort_signal.abort();
turn_interrupt_signal.interrupt();
}
}
_ = wait_for_stop => {}
@ -7698,7 +7718,7 @@ impl LiveCli {
\x1b[2mDirectory\x1b[0m {}\n\
\x1b[2mSession\x1b[0m {}\n\
\x1b[2mAuto-save\x1b[0m {}\n\n\
Type \x1b[1m/help\x1b[0m for commands · \x1b[1m/status\x1b[0m for live context · \x1b[2m/resume latest\x1b[0m jumps back to the newest session · \x1b[1m/diff\x1b[0m then \x1b[1m/commit\x1b[0m to ship · \x1b[2mTab\x1b[0m for workflow completions · \x1b[2mShift+Enter\x1b[0m for newline",
Type \x1b[1m/help\x1b[0m for commands · \x1b[1m/status\x1b[0m for live context · \x1b[2m/resume latest\x1b[0m jumps back to the newest session · \x1b[1m/diff\x1b[0m then \x1b[1m/commit\x1b[0m to ship · \x1b[2mTab\x1b[0m for workflow completions · \x1b[2mShift+Enter\x1b[0m for newline · \x1b[2mEsc\x1b[0m interrupts a running turn",
self.model,
self.permission_mode.as_str(),
git_branch,
@ -7723,8 +7743,12 @@ impl LiveCli {
fn prepare_turn_runtime(
&self,
emit_output: bool,
) -> Result<(BuiltRuntime, HookAbortMonitor), Box<dyn std::error::Error>> {
) -> Result<
(BuiltRuntime, HookAbortMonitor, runtime::TurnInterruptSignal),
Box<dyn std::error::Error>,
> {
let hook_abort_signal = runtime::HookAbortSignal::new();
let turn_interrupt_signal = runtime::TurnInterruptSignal::new();
let runtime = build_runtime(
self.runtime.session().clone(),
&self.session.id,
@ -7736,10 +7760,12 @@ impl LiveCli {
self.permission_mode,
None,
)?
.with_hook_abort_signal(hook_abort_signal.clone());
let hook_abort_monitor = HookAbortMonitor::spawn(hook_abort_signal);
.with_hook_abort_signal(hook_abort_signal.clone())
.with_turn_interrupt_signal(turn_interrupt_signal.clone());
let hook_abort_monitor =
HookAbortMonitor::spawn(hook_abort_signal, turn_interrupt_signal.clone());
Ok((runtime, hook_abort_monitor))
Ok((runtime, hook_abort_monitor, turn_interrupt_signal))
}
fn replace_runtime(&mut self, runtime: BuiltRuntime) -> Result<(), Box<dyn std::error::Error>> {
@ -7749,22 +7775,41 @@ impl LiveCli {
}
fn run_turn(&mut self, input: &str) -> Result<(), Box<dyn std::error::Error>> {
let (mut runtime, hook_abort_monitor) = self.prepare_turn_runtime(true)?;
let (mut runtime, hook_abort_monitor, turn_interrupt_signal) =
self.prepare_turn_runtime(true)?;
let mut permission_prompter = CliPermissionPrompter::new(self.permission_mode);
let mut escape_monitor = None;
if let Some((monitor, stdin_gate)) =
interrupt::EscapeInterruptMonitor::spawn(turn_interrupt_signal)
{
permission_prompter = permission_prompter.with_stdin_gate(stdin_gate);
escape_monitor = Some(monitor);
}
let mut spinner = Spinner::new();
let mut stdout = io::stdout();
spinner.tick(
"🦀 Thinking...",
if escape_monitor.is_some() {
"🦀 Thinking... (esc to interrupt)"
} else {
"🦀 Thinking..."
},
TerminalRenderer::new().color_theme(),
&mut stdout,
)?;
let mut permission_prompter = CliPermissionPrompter::new(self.permission_mode);
let result = runtime.run_turn(input, Some(&mut permission_prompter));
if let Some(monitor) = escape_monitor {
monitor.stop();
}
hook_abort_monitor.stop();
match result {
Ok(summary) => {
self.replace_runtime(runtime)?;
spinner.finish(
"✨ Done",
if summary.interrupted {
"⏹ Interrupted"
} else {
"✨ Done"
},
TerminalRenderer::new().color_theme(),
&mut stdout,
)?;
@ -7895,7 +7940,7 @@ impl LiveCli {
*self.runtime.session_mut() = result.compacted_session.clone();
// Build a new runtime with the compacted session and retry
let (mut new_runtime, hook_abort_monitor) =
let (mut new_runtime, hook_abort_monitor, _turn_interrupt_signal) =
self.prepare_turn_runtime(true)?;
drop(hook_abort_monitor);
@ -7985,7 +8030,8 @@ impl LiveCli {
}
fn run_prompt_compact(&mut self, input: &str) -> Result<(), Box<dyn std::error::Error>> {
let (mut runtime, hook_abort_monitor) = self.prepare_turn_runtime(false)?;
let (mut runtime, hook_abort_monitor, _turn_interrupt_signal) =
self.prepare_turn_runtime(false)?;
let mut permission_prompter = CliPermissionPrompter::new(self.permission_mode);
let result = runtime.run_turn(input, Some(&mut permission_prompter));
hook_abort_monitor.stop();
@ -7998,7 +8044,8 @@ impl LiveCli {
}
fn run_prompt_compact_json(&mut self, input: &str) -> Result<(), Box<dyn std::error::Error>> {
let (mut runtime, hook_abort_monitor) = self.prepare_turn_runtime(false)?;
let (mut runtime, hook_abort_monitor, _turn_interrupt_signal) =
self.prepare_turn_runtime(false)?;
let mut permission_prompter = CliPermissionPrompter::new(self.permission_mode);
let result = runtime.run_turn(input, Some(&mut permission_prompter));
hook_abort_monitor.stop();
@ -8023,7 +8070,8 @@ impl LiveCli {
}
fn run_prompt_json(&mut self, input: &str) -> Result<(), Box<dyn std::error::Error>> {
let (mut runtime, hook_abort_monitor) = self.prepare_turn_runtime(false)?;
let (mut runtime, hook_abort_monitor, _turn_interrupt_signal) =
self.prepare_turn_runtime(false)?;
let mut permission_prompter = CliPermissionPrompter::new(self.permission_mode);
let result = runtime.run_turn(input, Some(&mut permission_prompter));
hook_abort_monitor.stop();
@ -9495,6 +9543,7 @@ fn render_repl_help() -> String {
" Ctrl-R Reverse-search prompt history".to_string(),
" Tab Complete commands, modes, and recent sessions".to_string(),
" Ctrl-C Clear input (or exit on empty prompt)".to_string(),
" Esc Interrupt the running turn".to_string(),
" Shift+Enter/Ctrl+J Insert a newline".to_string(),
" Auto-save .claw/sessions/<workspace-fingerprint>/<session-id>.jsonl"
.to_string(),
@ -12478,11 +12527,20 @@ impl runtime::HookProgressReporter for CliHookProgressReporter {
struct CliPermissionPrompter {
current_mode: PermissionMode,
stdin_gate: Option<interrupt::StdinPromptGate>,
}
impl CliPermissionPrompter {
fn new(current_mode: PermissionMode) -> Self {
Self { current_mode }
Self {
current_mode,
stdin_gate: None,
}
}
fn with_stdin_gate(mut self, stdin_gate: interrupt::StdinPromptGate) -> Self {
self.stdin_gate = Some(stdin_gate);
self
}
}
@ -12491,6 +12549,12 @@ impl runtime::PermissionPrompter for CliPermissionPrompter {
&mut self,
request: &runtime::PermissionRequest,
) -> runtime::PermissionPromptDecision {
// Take stdin back from the Esc listener (restoring canonical
// mode) for the duration of this line-based prompt.
let _stdin_lease = self
.stdin_gate
.as_ref()
.map(interrupt::StdinPromptGate::lease);
println!();
println!("Permission approval required");
println!(" Tool {}", request.tool_name);
@ -12542,6 +12606,7 @@ struct AnthropicRuntimeClient {
tool_registry: GlobalToolRegistry,
progress_reporter: Option<InternalPromptProgressReporter>,
reasoning_effort: Option<String>,
turn_interrupt_signal: Option<runtime::TurnInterruptSignal>,
}
impl AnthropicRuntimeClient {
@ -12607,12 +12672,17 @@ impl AnthropicRuntimeClient {
tool_registry,
progress_reporter,
reasoning_effort: None,
turn_interrupt_signal: None,
})
}
fn set_reasoning_effort(&mut self, effort: Option<String>) {
self.reasoning_effort = effort;
}
fn set_turn_interrupt_signal(&mut self, signal: runtime::TurnInterruptSignal) {
self.turn_interrupt_signal = Some(signal);
}
}
fn resolve_cli_auth_source() -> Result<AuthSource, Box<dyn std::error::Error>> {
@ -12646,30 +12716,50 @@ impl ApiClient for AnthropicRuntimeClient {
};
self.runtime.block_on(async {
// When resuming after tool execution, apply a stall timeout on the
// first stream event. If the model does not respond within the
// deadline we drop the stalled connection and re-send the request as
// a continuation nudge (one retry only).
let max_attempts: usize = if is_post_tool { 2 } else { 1 };
let request_loop = async {
// When resuming after tool execution, apply a stall timeout on the
// first stream event. If the model does not respond within the
// deadline we drop the stalled connection and re-send the request as
// a continuation nudge (one retry only).
let max_attempts: usize = if is_post_tool { 2 } else { 1 };
for attempt in 1..=max_attempts {
let result = self
.consume_stream(&message_request, is_post_tool && attempt == 1)
.await;
match result {
Ok(events) => return Ok(events),
Err(error)
if error.to_string().contains("post-tool stall")
&& attempt < max_attempts =>
{
// Stalled after tool completion — nudge the model by
// re-sending the same request.
for attempt in 1..=max_attempts {
let result = self
.consume_stream(&message_request, is_post_tool && attempt == 1)
.await;
match result {
Ok(events) => return Ok(events),
Err(error)
if error.to_string().contains("post-tool stall")
&& attempt < max_attempts =>
{
// Stalled after tool completion — nudge the model by
// re-sending the same request.
}
Err(error) => return Err(error),
}
Err(error) => return Err(error),
}
Err(RuntimeError::new("post-tool continuation nudge exhausted"))
};
let Some(interrupt) = self.turn_interrupt_signal.clone() else {
return request_loop.await;
};
tokio::select! {
result = request_loop => result,
() = async {
while !interrupt.is_interrupted() {
tokio::time::sleep(std::time::Duration::from_millis(50)).await;
}
} => {
// Dropping the request future aborts the in-flight HTTP
// stream. The conversation loop sees the interrupt flag and
// reports this as an interruption rather than a failure.
Err(RuntimeError::new("request interrupted by user"))
}
}
Err(RuntimeError::new("post-tool continuation nudge exhausted"))
})
}
}