Files
optimclaw/src/agent/job_monitor.rs
T
1b97ef4feb fix: resolve wasm broadcast merge conflicts with staging (#395) (#1460)
* channels/wasm: implement telegram broadcast path for message tool

* channels/wasm: tighten telegram broadcast contract and tests

* fix: resolve merge conflicts with staging for wasm broadcast

- Remove duplicate broadcast() impls from WasmChannel and SharedWasmChannel
  (staging already has the generic call_on_broadcast path)
- Remove obsolete telegram-specific test helpers and tests that tested
  the old telegram-only broadcast logic
- Add test_broadcast_delegates_to_call_on_broadcast for the generic path
- Fix missing fallback_deliverable field in job_monitor test SseEvents

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

---------

Co-authored-by: davidpty <[email protected]>
Co-authored-by: firat.sertgoz <[email protected]>
Co-authored-by: Claude Opus 4.6 (1M context) <[email protected]>
2026-03-20 00:41:20 -07:00

525 lines
19 KiB
Rust

//! Background job monitor that forwards Claude Code output to the main agent loop.
//!
//! When the main agent kicks off a sandbox job (especially Claude Code), this
//! monitor subscribes to the broadcast event channel and injects relevant
//! assistant messages back into the channel manager's stream. This lets the
//! main agent see what the sub-agent is producing and surface it to the user.
//!
//! ```text
//! Container ──NDJSON──► Orchestrator ──broadcast──► JobMonitor
//! │
//! inject_tx (mpsc)
//! │
//! ▼
//! Agent Loop
//! ```
use std::sync::Arc;
use tokio::sync::{broadcast, mpsc};
use tokio::task::JoinHandle;
use uuid::Uuid;
use crate::channels::IncomingMessage;
use crate::channels::web::types::SseEvent;
use crate::context::{ContextManager, JobState};
/// Route context for forwarding job monitor events back to the user's channel.
#[derive(Debug, Clone)]
pub struct JobMonitorRoute {
pub channel: String,
pub user_id: String,
pub thread_id: Option<String>,
}
/// Spawn a background task that watches for events from a specific job and
/// injects assistant messages into the agent loop.
///
/// The monitor forwards:
/// - `SseEvent::JobMessage` (assistant role): injected as incoming messages so
/// the main agent can read and relay to the user.
/// - `SseEvent::JobResult`: injected as a completion notice, then the task exits.
///
/// Tool use/result and status events are intentionally skipped (too noisy for
/// the main agent's context window).
pub fn spawn_job_monitor(
job_id: Uuid,
event_rx: broadcast::Receiver<(Uuid, SseEvent)>,
inject_tx: mpsc::Sender<IncomingMessage>,
route: JobMonitorRoute,
) -> JoinHandle<()> {
spawn_job_monitor_with_context(job_id, event_rx, inject_tx, route, None)
}
/// Like `spawn_job_monitor`, but also transitions the job's in-memory state
/// when it receives a `JobResult` event. This ensures fire-and-forget sandbox
/// jobs don't stay `InProgress` forever in the `ContextManager`.
pub fn spawn_job_monitor_with_context(
job_id: Uuid,
mut event_rx: broadcast::Receiver<(Uuid, SseEvent)>,
inject_tx: mpsc::Sender<IncomingMessage>,
route: JobMonitorRoute,
context_manager: Option<Arc<ContextManager>>,
) -> JoinHandle<()> {
let short_id = job_id.to_string()[..8].to_string();
tokio::spawn(async move {
tracing::info!(job_id = %short_id, "Job monitor started successfully");
loop {
match event_rx.recv().await {
Ok((ev_job_id, event)) => {
if ev_job_id != job_id {
continue;
}
match event {
SseEvent::JobMessage { role, content, .. } if role == "assistant" => {
let mut msg = IncomingMessage::new(
route.channel.clone(),
route.user_id.clone(),
format!("[Job {}] Claude Code: {}", short_id, content),
)
.into_internal();
if let Some(ref thread_id) = route.thread_id {
msg = msg.with_thread(thread_id.clone());
}
if inject_tx.send(msg).await.is_err() {
tracing::debug!(
job_id = %short_id,
"Inject channel closed, stopping monitor"
);
break;
}
}
SseEvent::JobResult { status, .. } => {
// Transition in-memory state so the job frees its
// max_jobs slot and query tools show the final state.
if let Some(ref cm) = context_manager {
let target = if status == "completed" {
JobState::Completed
} else {
JobState::Failed
};
let reason = if status != "completed" {
Some(format!("Container finished: {}", status))
} else {
None
};
let _ = cm
.update_context(job_id, |ctx| {
let _ = ctx.transition_to(target, reason);
})
.await;
}
let mut msg = IncomingMessage::new(
route.channel.clone(),
route.user_id.clone(),
format!(
"[Job {}] Container finished (status: {})",
short_id, status
),
)
.into_internal();
if let Some(ref thread_id) = route.thread_id {
msg = msg.with_thread(thread_id.clone());
}
let _ = inject_tx.send(msg).await;
tracing::debug!(
job_id = %short_id,
status = %status,
"Job monitor exiting (job finished)"
);
break;
}
_ => {
// Skip tool_use, tool_result, status events
}
}
}
Err(broadcast::error::RecvError::Lagged(n)) => {
tracing::warn!(
job_id = %short_id,
skipped = n,
"Job monitor lagged, some events were dropped"
);
}
Err(broadcast::error::RecvError::Closed) => {
tracing::debug!(
job_id = %short_id,
"Broadcast channel closed, stopping monitor"
);
break;
}
}
}
})
}
/// Lightweight watcher that only transitions ContextManager state on job
/// completion. Used when monitor routing metadata is absent (no channel to
/// inject messages into) but we still need to free the `max_jobs` slot.
pub fn spawn_completion_watcher(
job_id: Uuid,
mut event_rx: broadcast::Receiver<(Uuid, SseEvent)>,
context_manager: Arc<ContextManager>,
) -> JoinHandle<()> {
let short_id = job_id.to_string()[..8].to_string();
tokio::spawn(async move {
loop {
match event_rx.recv().await {
Ok((ev_job_id, SseEvent::JobResult { status, .. })) if ev_job_id == job_id => {
let target = if status == "completed" {
JobState::Completed
} else {
JobState::Failed
};
let reason = if status != "completed" {
Some(format!("Container finished: {}", status))
} else {
None
};
let _ = context_manager
.update_context(job_id, |ctx| {
let _ = ctx.transition_to(target, reason);
})
.await;
tracing::debug!(
job_id = %short_id,
status = %status,
"Completion watcher exiting (job finished)"
);
break;
}
Ok(_) => {}
Err(broadcast::error::RecvError::Lagged(n)) => {
tracing::warn!(
job_id = %short_id,
skipped = n,
"Completion watcher lagged"
);
}
Err(broadcast::error::RecvError::Closed) => {
tracing::debug!(
job_id = %short_id,
"Broadcast channel closed, stopping completion watcher"
);
break;
}
}
}
})
}
#[cfg(test)]
mod tests {
use super::*;
fn test_route() -> JobMonitorRoute {
JobMonitorRoute {
channel: "cli".to_string(),
user_id: "user-1".to_string(),
thread_id: Some("thread-1".to_string()),
}
}
#[tokio::test]
async fn test_monitor_forwards_assistant_messages() {
let (event_tx, _) = broadcast::channel::<(Uuid, SseEvent)>(16);
let (inject_tx, mut inject_rx) = mpsc::channel::<IncomingMessage>(16);
let job_id = Uuid::new_v4();
let _handle = spawn_job_monitor(job_id, event_tx.subscribe(), inject_tx, test_route());
// Send an assistant message
event_tx
.send((
job_id,
SseEvent::JobMessage {
job_id: job_id.to_string(),
role: "assistant".to_string(),
content: "I found a bug".to_string(),
},
))
.unwrap();
let msg = tokio::time::timeout(std::time::Duration::from_secs(1), inject_rx.recv())
.await
.unwrap()
.unwrap();
assert_eq!(msg.channel, "cli");
assert_eq!(msg.user_id, "user-1");
assert_eq!(msg.thread_id, Some("thread-1".to_string()));
assert!(msg.content.contains("I found a bug"));
assert!(msg.is_internal, "monitor messages must be marked internal");
}
#[tokio::test]
async fn test_monitor_ignores_other_jobs() {
let (event_tx, _) = broadcast::channel::<(Uuid, SseEvent)>(16);
let (inject_tx, mut inject_rx) = mpsc::channel::<IncomingMessage>(16);
let job_id = Uuid::new_v4();
let other_job_id = Uuid::new_v4();
let _handle = spawn_job_monitor(job_id, event_tx.subscribe(), inject_tx, test_route());
// Send a message for a different job
event_tx
.send((
other_job_id,
SseEvent::JobMessage {
job_id: other_job_id.to_string(),
role: "assistant".to_string(),
content: "wrong job".to_string(),
},
))
.unwrap();
// Should not receive anything
let result =
tokio::time::timeout(std::time::Duration::from_millis(100), inject_rx.recv()).await;
assert!(
result.is_err(),
"should have timed out, no message expected"
);
}
#[tokio::test]
async fn test_monitor_exits_on_job_result() {
let (event_tx, _) = broadcast::channel::<(Uuid, SseEvent)>(16);
let (inject_tx, mut inject_rx) = mpsc::channel::<IncomingMessage>(16);
let job_id = Uuid::new_v4();
let handle = spawn_job_monitor(job_id, event_tx.subscribe(), inject_tx, test_route());
// Send a completion event
event_tx
.send((
job_id,
SseEvent::JobResult {
job_id: job_id.to_string(),
status: "completed".to_string(),
session_id: None,
fallback_deliverable: None,
},
))
.unwrap();
// Should receive the completion message
let msg = tokio::time::timeout(std::time::Duration::from_secs(1), inject_rx.recv())
.await
.unwrap()
.unwrap();
assert!(msg.content.contains("finished"));
// The monitor task should exit
tokio::time::timeout(std::time::Duration::from_secs(1), handle)
.await
.expect("monitor should have exited")
.expect("monitor task should not panic");
}
#[tokio::test]
async fn test_monitor_skips_tool_events() {
let (event_tx, _) = broadcast::channel::<(Uuid, SseEvent)>(16);
let (inject_tx, mut inject_rx) = mpsc::channel::<IncomingMessage>(16);
let job_id = Uuid::new_v4();
let _handle = spawn_job_monitor(job_id, event_tx.subscribe(), inject_tx, test_route());
// Send tool use event (should be skipped)
event_tx
.send((
job_id,
SseEvent::JobToolUse {
job_id: job_id.to_string(),
tool_name: "shell".to_string(),
input: serde_json::json!({"command": "ls"}),
},
))
.unwrap();
// Send user message (should be skipped)
event_tx
.send((
job_id,
SseEvent::JobMessage {
job_id: job_id.to_string(),
role: "user".to_string(),
content: "user prompt".to_string(),
},
))
.unwrap();
// Should not receive anything for tool events or user messages
let result =
tokio::time::timeout(std::time::Duration::from_millis(100), inject_rx.recv()).await;
assert!(
result.is_err(),
"should have timed out, no message expected"
);
}
/// Regression test: external channels must not be able to spoof the
/// `is_internal` flag via metadata keys. A message created through
/// the normal `IncomingMessage::new` + `with_metadata` path must
/// always have `is_internal == false`, regardless of metadata content.
#[test]
fn test_external_metadata_cannot_spoof_internal_flag() {
let msg = IncomingMessage::new("wasm_channel", "attacker", "pwned").with_metadata(
serde_json::json!({
"__internal_job_monitor": true,
"is_internal": true,
}),
);
assert!(
!msg.is_internal,
"with_metadata must not set is_internal — only into_internal() can"
);
}
#[test]
fn test_into_internal_sets_flag() {
let msg = IncomingMessage::new("monitor", "system", "test").into_internal();
assert!(msg.is_internal);
}
// === Regression: fire-and-forget sandbox jobs must transition out of InProgress ===
// Before this fix, spawn_job_monitor only forwarded SSE messages but never
// updated ContextManager. Background sandbox jobs stayed InProgress forever,
// permanently consuming a max_jobs slot.
#[tokio::test]
async fn test_monitor_transitions_context_on_completion() {
use crate::context::{ContextManager, JobState};
let cm = Arc::new(ContextManager::new(5));
let job_id = Uuid::new_v4();
cm.register_sandbox_job(job_id, "user-1", "Build app", "desc")
.await
.unwrap();
let (event_tx, _) = broadcast::channel::<(Uuid, SseEvent)>(16);
let (inject_tx, mut inject_rx) = mpsc::channel::<IncomingMessage>(16);
let handle = spawn_job_monitor_with_context(
job_id,
event_tx.subscribe(),
inject_tx,
test_route(),
Some(Arc::clone(&cm)),
);
// Send completion event
event_tx
.send((
job_id,
SseEvent::JobResult {
job_id: job_id.to_string(),
status: "completed".to_string(),
session_id: None,
fallback_deliverable: None,
},
))
.unwrap();
// Drain the injected message
let _ = tokio::time::timeout(std::time::Duration::from_secs(1), inject_rx.recv()).await;
// Wait for monitor to exit
tokio::time::timeout(std::time::Duration::from_secs(1), handle)
.await
.expect("monitor should exit")
.expect("monitor should not panic");
// Job should now be Completed, not InProgress
let ctx = cm.get_context(job_id).await.unwrap();
assert_eq!(ctx.state, JobState::Completed);
}
#[tokio::test]
async fn test_monitor_transitions_context_on_failure() {
use crate::context::{ContextManager, JobState};
let cm = Arc::new(ContextManager::new(5));
let job_id = Uuid::new_v4();
cm.register_sandbox_job(job_id, "user-1", "Build app", "desc")
.await
.unwrap();
let (event_tx, _) = broadcast::channel::<(Uuid, SseEvent)>(16);
let (inject_tx, mut inject_rx) = mpsc::channel::<IncomingMessage>(16);
let handle = spawn_job_monitor_with_context(
job_id,
event_tx.subscribe(),
inject_tx,
test_route(),
Some(Arc::clone(&cm)),
);
// Send failure event
event_tx
.send((
job_id,
SseEvent::JobResult {
job_id: job_id.to_string(),
status: "failed".to_string(),
session_id: None,
fallback_deliverable: None,
},
))
.unwrap();
let _ = tokio::time::timeout(std::time::Duration::from_secs(1), inject_rx.recv()).await;
tokio::time::timeout(std::time::Duration::from_secs(1), handle)
.await
.expect("monitor should exit")
.expect("monitor should not panic");
let ctx = cm.get_context(job_id).await.unwrap();
assert_eq!(ctx.state, JobState::Failed);
}
// === Regression: completion watcher (no route metadata) ===
// When monitor_route_from_ctx() returns None, spawn_completion_watcher
// must still transition the job so the max_jobs slot is freed.
#[tokio::test]
async fn test_completion_watcher_transitions_on_result() {
use crate::context::{ContextManager, JobState};
let cm = Arc::new(ContextManager::new(5));
let job_id = Uuid::new_v4();
cm.register_sandbox_job(job_id, "user-1", "Build app", "desc")
.await
.unwrap();
let (event_tx, _) = broadcast::channel::<(Uuid, SseEvent)>(16);
let handle = spawn_completion_watcher(job_id, event_tx.subscribe(), Arc::clone(&cm));
event_tx
.send((
job_id,
SseEvent::JobResult {
job_id: job_id.to_string(),
status: "completed".to_string(),
session_id: None,
fallback_deliverable: None,
},
))
.unwrap();
tokio::time::timeout(std::time::Duration::from_secs(1), handle)
.await
.expect("watcher should exit")
.expect("watcher should not panic");
let ctx = cm.get_context(job_id).await.unwrap();
assert_eq!(ctx.state, JobState::Completed);
}
}