diff --git a/crates/protocol/src/lib.rs b/crates/protocol/src/lib.rs
index 19f09a62f..2d8e8c6e9 100644
--- a/crates/protocol/src/lib.rs
+++ b/crates/protocol/src/lib.rs
@@ -1245,6 +1245,16 @@ pub enum Event {
         #[serde(default, skip_serializing_if = "Option::is_none")]
         cache_read_input_tokens: Option<u64>,
     },
+    /// Authoritative current-context occupancy after a non-request boundary.
+    ///
+    /// Unlike [`Event::Usage`], this is not cumulative request traffic. It lets
+    /// connected clients converge with reconnect snapshots after run completion,
+    /// compaction, rewind, and other history rewrites. `None` explicitly means
+    /// the current value is unavailable and stale occupancy must be cleared.
+    ContextUsage {
+        #[serde(default, skip_serializing_if = "Option::is_none")]
+        usage: Option<ContextUsage>,
+    },
     RunEnd {
         result: RunResult,
     },
@@ -2440,6 +2450,30 @@ mod tests {
         assert_eq!(parsed["data"]["state"]["state"]["state"]["state"], "paused");
     }
 
+    #[test]
+    fn context_usage_event_roundtrips_typed_value_and_unknown() {
+        let event = Event::ContextUsage {
+            usage: Some(ContextUsage {
+                tokens: 25_000,
+                source: ContextTokenSource::Estimated,
+            }),
+        };
+        let json = serde_json::to_string(&event).unwrap();
+        assert_eq!(
+            serde_json::from_str::<serde_json::Value>(&json).unwrap(),
+            serde_json::json!({
+                "event": "context_usage",
+                "data": {
+                    "usage": { "tokens": 25_000, "source": "estimated" }
+                }
+            })
+        );
+        assert!(matches!(
+            serde_json::from_str::<Event>(r#"{"event":"context_usage","data":{}}"#).unwrap(),
+            Event::ContextUsage { usage: None }
+        ));
+    }
+
     #[test]
     fn event_snapshot_in_flight_roundtrip_and_default() {
         let inbound = r#"{"event":"snapshot","data":{"session":{"entries":[]},"greeting":{"worker_name":"test","cwd":"/tmp","provider":"p","model":"m","scope_summary":"s","tools":[]},"state":{"last_command_id":0,"state":{"kind":"busy","state":{"kind":"run","state":"running"}}}}}"#;
diff --git a/crates/tui/src/app.rs b/crates/tui/src/app.rs
index b2b475f41..0f45861d9 100644
--- a/crates/tui/src/app.rs
+++ b/crates/tui/src/app.rs
@@ -247,6 +247,9 @@ pub struct App {
     /// Latest session context tokens reported by the Worker. This is the raw
     /// `input_tokens` value and is independent from per-run upload totals.
     pub session_context_tokens: u64,
+    /// Availability and provenance for `session_context_tokens`. `None` means
+    /// the current value is unknown and clients must not render a fabricated 0%.
+    pub session_context_source: Option<protocol::ContextTokenSource>,
     pub context_window: u64,
     pub turn_index: usize,
     pub current_tool: Option<String>,
@@ -352,6 +355,7 @@ impl App {
             run_upload_tokens: 0,
             run_output_tokens: 0,
             session_context_tokens: 0,
+            session_context_source: None,
             context_window: 0,
             turn_index: 0,
             current_tool: None,
@@ -1405,6 +1409,9 @@ impl App {
             } => {
                 if let Some(input_tokens) = input_tokens {
                     self.session_context_tokens = input_tokens;
+                    self.session_context_source = Some(protocol::ContextTokenSource::Measured);
+                } else {
+                    self.session_context_source = None;
                 }
                 // Subtract the cache-hit portion so a tool loop that
                 // re-sends the same prefix on every request doesn't
@@ -1416,6 +1423,14 @@ impl App {
                 self.run_upload_tokens += net_input;
                 self.run_output_tokens += output_tokens.unwrap_or(0);
             }
+            Event::ContextUsage { usage } => {
+                if let Some(usage) = usage {
+                    self.session_context_tokens = usage.tokens;
+                    self.session_context_source = Some(usage.source);
+                } else {
+                    self.session_context_source = None;
+                }
+            }
             Event::Error { code, message } => {
                 self.handle_error(code, message);
             }
@@ -2429,10 +2444,14 @@ impl App {
     ) {
         self.greeting = Some(greeting.clone());
         self.context_window = greeting.context_window;
-        self.session_context_tokens = greeting
-            .context_usage
-            .map(|usage| usage.tokens)
-            .unwrap_or(greeting.context_tokens);
+        let context_usage = greeting.context_usage.or_else(|| {
+            (greeting.context_window > 0).then_some(protocol::ContextUsage {
+                tokens: greeting.context_tokens,
+                source: protocol::ContextTokenSource::Estimated,
+            })
+        });
+        self.session_context_tokens = context_usage.map(|usage| usage.tokens).unwrap_or_default();
+        self.session_context_source = context_usage.map(|usage| usage.source);
         self.restore_session(session, Some(greeting));
         self.apply_in_flight_snapshot(in_flight);
     }
@@ -2458,6 +2477,7 @@ impl App {
             self.greeting = Some(greeting.clone());
             self.context_window = greeting.context_window;
             self.session_context_tokens = 0;
+            self.session_context_source = None;
         }
         let missing_greeting = greeting.is_none();
         self.restore_session(session, greeting);
@@ -2850,6 +2870,7 @@ mod rewind_refresh_tests {
         assert_eq!(composer_text(&app), "selected rewind input");
         assert!(blocks_contain(&app, "Rewound session"));
         assert_eq!(app.session_context_tokens, 0);
+        assert_eq!(app.session_context_source, None);
         assert_eq!(app.greeting.as_ref().and_then(|g| g.context_usage), None);
     }
 
@@ -4575,6 +4596,10 @@ mod completion_flow_tests {
 
         assert_eq!(app.context_window, 123_000);
         assert_eq!(app.session_context_tokens, 45_000);
+        assert_eq!(
+            app.session_context_source,
+            Some(protocol::ContextTokenSource::Measured)
+        );
     }
 
     #[test]
@@ -4597,6 +4622,10 @@ mod completion_flow_tests {
 
         assert_eq!(app.context_window, 100_000);
         assert_eq!(app.session_context_tokens, 25_000);
+        assert_eq!(
+            app.session_context_source,
+            Some(protocol::ContextTokenSource::Estimated)
+        );
     }
 
     #[test]
@@ -4610,10 +4639,39 @@ mod completion_flow_tests {
         });
 
         assert_eq!(app.session_context_tokens, 42_000);
+        assert_eq!(
+            app.session_context_source,
+            Some(protocol::ContextTokenSource::Measured)
+        );
         assert_eq!(app.run_upload_tokens, 2_000);
         assert_eq!(app.run_output_tokens, 9);
     }
 
+    #[test]
+    fn context_usage_event_converges_live_state_without_changing_run_traffic() {
+        let mut app = App::new("test".into());
+        app.run_upload_tokens = 2_000;
+        app.run_output_tokens = 9;
+
+        app.handle_worker_event(Event::ContextUsage {
+            usage: Some(protocol::ContextUsage {
+                tokens: 45_000,
+                source: protocol::ContextTokenSource::Estimated,
+            }),
+        });
+
+        assert_eq!(app.session_context_tokens, 45_000);
+        assert_eq!(
+            app.session_context_source,
+            Some(protocol::ContextTokenSource::Estimated)
+        );
+        assert_eq!(app.run_upload_tokens, 2_000);
+        assert_eq!(app.run_output_tokens, 9);
+
+        app.handle_worker_event(Event::ContextUsage { usage: None });
+        assert_eq!(app.session_context_source, None);
+    }
+
     #[test]
     fn memory_worker_event_updates_actionbar_state() {
         let mut app = App::new("test".into());
diff --git a/crates/tui/src/ui.rs b/crates/tui/src/ui.rs
index 5c6fe83e6..e7f453b57 100644
--- a/crates/tui/src/ui.rs
+++ b/crates/tui/src/ui.rs
@@ -1830,13 +1830,20 @@ fn draw_separator(frame: &mut Frame, area: Rect) {
 }
 
 fn context_usage_text(app: &App) -> String {
-    let pct = if app.context_window == 0 {
-        0
-    } else {
-        ((app.session_context_tokens as f64 / app.context_window as f64) * 100.0).round() as u64
+    let Some(source) = app.session_context_source else {
+        return "Context unavailable".to_string();
     };
+    if app.context_window == 0 {
+        return "Context unavailable".to_string();
+    }
+    let pct =
+        ((app.session_context_tokens as f64 / app.context_window as f64) * 100.0).round() as u64;
+    let estimate = matches!(source, protocol::ContextTokenSource::Estimated)
+        .then_some("~")
+        .unwrap_or_default();
     format!(
-        "{} / {} ({}%)",
+        "{}{} / {} ({}%)",
+        estimate,
         fmt_tokens(app.session_context_tokens),
         fmt_tokens(app.context_window),
         pct
@@ -2194,6 +2201,23 @@ mod tests {
         );
     }
 
+    #[test]
+    fn context_usage_distinguishes_unknown_measured_and_estimated_values() {
+        let mut app = App::new("worker".into());
+        app.context_window = 100_000;
+        app.session_context_tokens = 0;
+        app.session_context_source = None;
+        assert_eq!(context_usage_text(&app), "Context unavailable");
+
+        app.session_context_tokens = 25_000;
+        app.session_context_source = Some(protocol::ContextTokenSource::Measured);
+        assert_eq!(context_usage_text(&app), "25.0k / 100.0k (25%)");
+
+        app.session_context_tokens = 20_000;
+        app.session_context_source = Some(protocol::ContextTokenSource::Estimated);
+        assert_eq!(context_usage_text(&app), "~20.0k / 100.0k (20%)");
+    }
+
     #[test]
     fn run_elapsed_uses_console_style_units() {
         assert_eq!(fmt_run_elapsed(9), "9s");
diff --git a/crates/worker/src/controller.rs b/crates/worker/src/controller.rs
index 8a12f6951..cc659f199 100644
--- a/crates/worker/src/controller.rs
+++ b/crates/worker/src/controller.rs
@@ -269,6 +269,17 @@ async fn set_controller_state(
     snapshot
 }
 
+fn publish_context_usage(
+    shared_state: &Arc<WorkerSharedState>,
+    working_event_tx: &broadcast::Sender<Event>,
+    tokens: Option<u64>,
+    source: protocol::ContextTokenSource,
+) {
+    shared_state.update_context_usage(tokens, source);
+    let usage = tokens.map(|tokens| protocol::ContextUsage { tokens, source });
+    let _ = working_event_tx.send(Event::ContextUsage { usage });
+}
+
 async fn set_controller_status(
     shared_state: &Arc<WorkerSharedState>,
     runtime_dir: &RuntimeDir,
@@ -303,7 +314,9 @@ async fn finish_controller_run<C, St>(
     // the terminal run boundary so reconnect snapshots cannot append stale
     // partial text/tool arguments after newer entries.
     worker.clear_in_flight_events();
-    shared_state.update_context_usage(
+    publish_context_usage(
+        shared_state,
+        working_event_tx,
         Some(worker.total_tokens().tokens),
         protocol::ContextTokenSource::Estimated,
     );
@@ -797,9 +810,14 @@ impl WorkerController {
             greeting,
         ));
         let usage_state = shared_state.clone();
+        let usage_events = working_event_tx.clone();
         worker.engine_mut().on_usage(move |event| {
-            usage_state
-                .update_context_usage(event.input_tokens, protocol::ContextTokenSource::Measured);
+            publish_context_usage(
+                &usage_state,
+                &usage_events,
+                event.input_tokens,
+                protocol::ContextTokenSource::Measured,
+            );
         });
         if let Some(fs_for_view) = fs_for_view {
             shared_state.set_fs_view(crate::fs_view::WorkerFsView::new(fs_for_view));
@@ -2518,7 +2536,9 @@ async fn controller_loop<C, St>(
                         }
                     }
                 };
-                shared_state.update_context_usage(
+                publish_context_usage(
+                    &shared_state,
+                    &working_event_tx,
                     Some(worker.total_tokens().tokens),
                     protocol::ContextTokenSource::Estimated,
                 );
@@ -2589,7 +2609,9 @@ async fn controller_loop<C, St>(
                     .await
                     {
                         worker.clear_in_flight_events();
-                        shared_state.update_context_usage(
+                        publish_context_usage(
+                            &shared_state,
+                            &working_event_tx,
                             Some(worker.total_tokens().tokens),
                             protocol::ContextTokenSource::Estimated,
                         );
@@ -3566,6 +3588,47 @@ mod tests {
         );
     }
 
+    #[test]
+    fn context_usage_publication_updates_reconnect_state_and_live_clients() {
+        let shared_state = Arc::new(WorkerSharedState::new(
+            "worker".into(),
+            session_store::new_segment_id(),
+            String::new(),
+            protocol::Greeting {
+                worker_name: "worker".into(),
+                cwd: "/tmp".into(),
+                provider: "provider".into(),
+                model: "model".into(),
+                reasoning: None,
+                scope_summary: String::new(),
+                tools: Vec::new(),
+                context_window: 100_000,
+                context_tokens: 0,
+                context_usage: None,
+            },
+        ));
+        let (events, mut receiver) = broadcast::channel(4);
+
+        publish_context_usage(
+            &shared_state,
+            &events,
+            Some(25_000),
+            protocol::ContextTokenSource::Estimated,
+        );
+
+        let expected = protocol::ContextUsage {
+            tokens: 25_000,
+            source: protocol::ContextTokenSource::Estimated,
+        };
+        assert_eq!(shared_state.greeting().context_usage, Some(expected));
+        assert!(matches!(
+            receiver.try_recv(),
+            Ok(Event::ContextUsage {
+                usage: Some(usage)
+            }) if usage == expected
+        ));
+    }
+
     #[test]
     fn automatic_memory_extraction_destinations_are_mutually_exclusive() {
         let mut memory = manifest::MemoryFeatureProfileConfig::default();
diff --git a/crates/worker/src/internal_worker.rs b/crates/worker/src/internal_worker.rs
index 0266f77c0..76c8b6b91 100644
--- a/crates/worker/src/internal_worker.rs
+++ b/crates/worker/src/internal_worker.rs
@@ -834,6 +834,23 @@ fn spawn_internal_log_event_bridge(sink: SegmentLogSink, event_tx: broadcast::Se
     });
 }
 
+fn publish_internal_context_usage(
+    greeting: &RwLock<protocol::Greeting>,
+    event_tx: &broadcast::Sender<Event>,
+    tokens: Option<u64>,
+    source: protocol::ContextTokenSource,
+) {
+    let usage = tokens.map(|tokens| protocol::ContextUsage { tokens, source });
+    {
+        let mut greeting = greeting
+            .write()
+            .expect("internal Worker greeting lock poisoned");
+        greeting.context_tokens = tokens.unwrap_or_default();
+        greeting.context_usage = usage;
+    }
+    let _ = event_tx.send(Event::ContextUsage { usage });
+}
+
 pub(crate) async fn prepare_internal_worker_session(
     mut worker: Worker<Box<dyn LlmClient>, EphemeralSessionStore>,
     store: EphemeralSessionStore,
@@ -864,17 +881,17 @@ pub(crate) async fn prepare_internal_worker_session(
     let greeting = Arc::new(RwLock::new(build_greeting(&worker)));
     wire_event_bridges_on_engine(&mut worker, &event_tx, &alerter, &in_flight);
     let usage_greeting = greeting.clone();
+    let usage_events = event_tx.clone();
     worker.engine_mut().on_usage(move |event| {
-        let mut greeting = usage_greeting
-            .write()
-            .expect("internal Worker greeting lock poisoned");
-        greeting.context_tokens = event.input_tokens.unwrap_or_default();
-        greeting.context_usage = event.input_tokens.map(|tokens| protocol::ContextUsage {
-            tokens,
-            source: protocol::ContextTokenSource::Measured,
-        });
+        publish_internal_context_usage(
+            &usage_greeting,
+            &usage_events,
+            event.input_tokens,
+            protocol::ContextTokenSource::Measured,
+        );
     });
 
+    let actor_greeting = greeting.clone();
     let session_id = worker.session_id();
     let segment_id = worker.segment_id();
     let (command_tx, mut command_rx) = tokio::sync::mpsc::channel(8);
@@ -909,50 +926,56 @@ pub(crate) async fn prepare_internal_worker_session(
             match command {
                 InternalWorkerSessionCommand::Run(input) => {
                     actor_in_flight.clear();
-                    let cancel_sender = worker.engine_mut().cancel_sender();
-                    let mut run = std::pin::pin!(worker.run_text(&input));
-                    loop {
-                        tokio::select! {
-                            result = &mut run => {
-                                let (turn_status, error, outcome) =
-                                    classify_internal_turn_result(result);
-                                actor_in_flight.clear();
-                                *last_outcome.lock().unwrap() = Some(outcome);
-                                status.store(turn_status.encode(), std::sync::atomic::Ordering::Release);
-                                if let Some(message) = error {
-                                    *last_error.lock().unwrap() = Some(message.clone());
-                                    let _ = event_tx.send(Event::Error {
-                                        code: protocol::ErrorCode::Internal,
-                                        message,
-                                    });
+                    let (turn_status, error, outcome) = {
+                        let cancel_sender = worker.engine_mut().cancel_sender();
+                        let mut run = std::pin::pin!(worker.run_text(&input));
+                        loop {
+                            tokio::select! {
+                                result = &mut run => {
+                                    break classify_internal_turn_result(result);
                                 }
-                                send_internal_worker_state(&event_tx, turn_status);
-                                if let Some(callback) = &on_turn_end {
-                                    callback(turn_status);
-                                }
-                                state_changed.notify_waiters();
-                                break;
-                            }
-                            command = command_rx.recv() => {
-                                match command {
-                                    Some(InternalWorkerSessionCommand::Stop(done)) => {
-                                        let _ = cancel_sender.send(()).await;
-                                        let _ = (&mut run).await;
-                                        stop_done = Some(done);
-                                        break 'actor;
-                                    }
-                                    Some(InternalWorkerSessionCommand::Run(_)) => {
-                                        // `send` reserves Running atomically, so a second Run cannot be enqueued.
-                                    }
-                                    None => {
-                                        let _ = cancel_sender.send(()).await;
-                                        let _ = (&mut run).await;
-                                        break 'actor;
+                                command = command_rx.recv() => {
+                                    match command {
+                                        Some(InternalWorkerSessionCommand::Stop(done)) => {
+                                            let _ = cancel_sender.send(()).await;
+                                            let _ = (&mut run).await;
+                                            stop_done = Some(done);
+                                            break 'actor;
+                                        }
+                                        Some(InternalWorkerSessionCommand::Run(_)) => {
+                                            // `send` reserves Running atomically, so a second Run cannot be enqueued.
+                                        }
+                                        None => {
+                                            let _ = cancel_sender.send(()).await;
+                                            let _ = (&mut run).await;
+                                            break 'actor;
+                                        }
                                     }
                                 }
                             }
                         }
+                    };
+                    publish_internal_context_usage(
+                        &actor_greeting,
+                        &event_tx,
+                        Some(worker.total_tokens().tokens),
+                        protocol::ContextTokenSource::Estimated,
+                    );
+                    actor_in_flight.clear();
+                    *last_outcome.lock().unwrap() = Some(outcome);
+                    status.store(turn_status.encode(), std::sync::atomic::Ordering::Release);
+                    if let Some(message) = error {
+                        *last_error.lock().unwrap() = Some(message.clone());
+                        let _ = event_tx.send(Event::Error {
+                            code: protocol::ErrorCode::Internal,
+                            message,
+                        });
                     }
+                    send_internal_worker_state(&event_tx, turn_status);
+                    if let Some(callback) = &on_turn_end {
+                        callback(turn_status);
+                    }
+                    state_changed.notify_waiters();
                 }
                 InternalWorkerSessionCommand::Stop(done) => {
                     stop_done = Some(done);
@@ -1509,11 +1532,37 @@ permission = "write"
         assert_eq!(handle.protocol_snapshot().in_flight.blocks.len(), 1);
         let entries_after_first = handle.entries().len();
         assert!(entries_after_first >= 4);
+        assert!(matches!(
+            handle
+                .protocol_snapshot()
+                .greeting
+                .and_then(|greeting| greeting.context_usage),
+            Some(protocol::ContextUsage {
+                source: protocol::ContextTokenSource::Estimated,
+                ..
+            })
+        ));
+        let mut events = handle.subscribe_events();
         handle.send("follow-up").await.expect("send follow-up turn");
         assert_eq!(
             handle.wait_until_idle().await,
             InternalWorkerSessionStatus::Idle
         );
+        let mut saw_estimated_context = false;
+        while let Ok(event) = events.try_recv() {
+            if matches!(
+                event,
+                Event::ContextUsage {
+                    usage: Some(protocol::ContextUsage {
+                        source: protocol::ContextTokenSource::Estimated,
+                        ..
+                    })
+                }
+            ) {
+                saw_estimated_context = true;
+            }
+        }
+        assert!(saw_estimated_context);
         assert!(handle.protocol_snapshot().in_flight.blocks.is_empty());
         assert_eq!(calls.load(Ordering::SeqCst), 2);
         assert!(handle.entries().len() > entries_after_first);
diff --git a/web/workspace/src/lib/generated/protocol-validator.ts b/web/workspace/src/lib/generated/protocol-validator.ts
index 0a1eff3c9..d364f42df 100644
--- a/web/workspace/src/lib/generated/protocol-validator.ts
+++ b/web/workspace/src/lib/generated/protocol-validator.ts
@@ -21,7 +21,7 @@ const MAX_CORRELATION_ID_BYTES = 128;
 const MAX_RESOURCE_ID_BYTES = 256;
 const MAX_WORKER_IDS_PER_SELECTOR = 256;
 const MAX_REJECTION_MESSAGE_BYTES = 1024;
-const subscriptionFrameSchema: unknown = {"$defs":{"Alert":{"additionalProperties":false,"description":"User-facing alert emitted from the Worker layer.\n\nThis is a separate channel from `tracing` (developer logs): entries\nhere are assembled explicitly by the Worker when a condition should be\nsurfaced to the person driving the client. Keep messages short and\nhuman-readable.","properties":{"level":{"$ref":"#/$defs/AlertLevel"},"message":{"type":"string"},"source":{"$ref":"#/$defs/AlertSource"},"timestamp_ms":{"description":"Milliseconds since the Unix epoch.","format":"int64","maximum":9007199254740991.0,"minimum":-9007199254740991.0,"type":"integer"}},"required":["level","source","message","timestamp_ms"],"type":"object"},"AlertLevel":{"enum":["warn","error"],"type":"string"},"AlertSource":{"enum":["worker","engine","compactor","agents_md"],"type":"string"},"CommandEvent":{"oneOf":[{"additionalProperties":false,"properties":{"command_id":{"type":"string"},"kind":{"const":"started","type":"string"},"observed_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"tool_call_id":{"type":["string","null"]}},"required":["kind","command_id","observed_at_ms"],"type":"object"},{"additionalProperties":false,"properties":{"command_id":{"type":"string"},"content":{"type":"string"},"end_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"kind":{"const":"output","type":"string"},"observed_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"start_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"stream":{"$ref":"#/$defs/CommandStream"}},"required":["kind","command_id","stream","start_offset","end_offset","content","observed_at_ms"],"type":"object"},{"additionalProperties":false,"properties":{"command_id":{"type":"string"},"exit_code":{"format":"int32","maximum":2147483647.0,"minimum":-2147483648.0,"type":["integer","null"]},"kind":{"const":"terminal","type":"string"},"observed_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"status":{"$ref":"#/$defs/CommandStatus"},"stderr_end_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"stdout_end_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","command_id","status","stdout_end_offset","stderr_end_offset","observed_at_ms"],"type":"object"}]},"CommandSnapshot":{"additionalProperties":false,"properties":{"command_id":{"type":"string"},"exit_code":{"format":"int32","maximum":2147483647.0,"minimum":-2147483648.0,"type":["integer","null"]},"last_output_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]},"observed_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"started_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"status":{"$ref":"#/$defs/CommandStatus"},"stderr":{"$ref":"#/$defs/CommandStreamSlice"},"stdout":{"$ref":"#/$defs/CommandStreamSlice"},"tool_call_id":{"type":["string","null"]}},"required":["command_id","status","started_at_ms","observed_at_ms","stdout","stderr"],"type":"object"},"CommandStatus":{"description":"Live provider-owned command status. These values are operational Console\nstate only and are never appended to Worker history.","enum":["running","completed","failed","timed_out","cancelled"],"type":"string"},"CommandStream":{"enum":["stdout","stderr"],"type":"string"},"CommandStreamSlice":{"additionalProperties":false,"properties":{"content":{"type":"string"},"end_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"start_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"truncated":{"type":"boolean"}},"required":["start_offset","end_offset","content","truncated"],"type":"object"},"CompactionLifecycle":{"additionalProperties":false,"description":"Stable parent-owned lifecycle for one compaction run.","properties":{"compaction_id":{"type":"string"},"ended_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]},"error":{"type":["string","null"]},"internal_worker":{"anyOf":[{"$ref":"#/$defs/InternalWorkerRef"},{"type":"null"}]},"new_segment_id":{"type":["string","null"]},"revision":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"schema_version":{"format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"started_at_ms":{"description":"Milliseconds since the Unix epoch.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"state":{"$ref":"#/$defs/CompactionLifecycleState"},"summary":{"type":["string","null"]}},"required":["schema_version","compaction_id","revision","state","started_at_ms"],"type":"object"},"CompactionLifecycleState":{"enum":["running","done","failed","interrupted"],"type":"string"},"CompactionPhase":{"enum":["preparing","summarizing","committing"],"type":"string"},"CompactionTrigger":{"enum":["manual","pre_run","request_threshold"],"type":"string"},"CompletionEntry":{"additionalProperties":false,"description":"One completion candidate for a prefix query.\n\n`value` is a path (file kind).","properties":{"is_dir":{"default":false,"type":"boolean"},"value":{"type":"string"}},"required":["value","is_dir"],"type":"object"},"CompletionKind":{"description":"Kind of completion requested by `Method::ListCompletions`.\n\nMirrors the completion prefix sigil: `@` → `File`.","enum":["file"],"type":"string"},"ContextTokenSource":{"description":"Provenance of the current-context token count in a [`Greeting`].","oneOf":[{"const":"measured","description":"Provider-reported input occupancy from the most recent LLM request.","type":"string"},{"const":"estimated","description":"Current history projected from the Worker's token accounting records.","type":"string"}]},"ContextUsage":{"additionalProperties":false,"description":"Current prompt-context occupancy, distinct from cumulative run traffic.","properties":{"source":{"$ref":"#/$defs/ContextTokenSource"},"tokens":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["tokens","source"],"type":"object"},"ErrorCode":{"enum":["already_running","not_running","not_paused","provider_error","tool_error","invalid_request","internal"],"type":"string"},"Event":{"oneOf":[{"additionalProperties":false,"description":"Durable Submit acceptance. A `Queued` receipt follows the durable FIFO\ncheckpoint. A `Started` receipt follows the pending activation checkpoint;\nthe corresponding [`Event::UserMessage`] marks the later history commit.\nRepeating the same request id and exact payload returns the same receipt\nwithout appending or activating twice.","properties":{"data":{"additionalProperties":false,"properties":{"disposition":{"$ref":"#/$defs/SubmissionDisposition"},"submission_id":{"type":"string"},"submission_request_id":{"type":"string"}},"required":["submission_request_id","submission_id","disposition"],"type":"object"},"event":{"const":"submission_accepted","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Correlated rejection before durable acceptance.","properties":{"data":{"additionalProperties":false,"properties":{"message":{"type":"string"},"submission_request_id":{"type":"string"}},"required":["submission_request_id","message"],"type":"object"},"event":{"const":"submission_rejected","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Durable notification acceptance. The request identity is persisted with\nthe notification receipt before this event is emitted. Repeating the\nsame request id and exact payload returns the same acknowledgement\nwithout appending the notification twice.","properties":{"data":{"additionalProperties":false,"properties":{"notification_request_id":{"type":"string"}},"required":["notification_request_id"],"type":"object"},"event":{"const":"notification_accepted","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Correlated notification rejection before durable acceptance.","properties":{"data":{"additionalProperties":false,"properties":{"message":{"type":"string"},"notification_request_id":{"type":"string"}},"required":["notification_request_id","message"],"type":"object"},"event":{"const":"notification_rejected","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Revisioned FIFO replacement following enqueue, activation, cancel, or clear.","properties":{"data":{"additionalProperties":false,"properties":{"pending":{"$ref":"#/$defs/PendingSubmissionsSnapshot"}},"required":["pending"],"type":"object"},"event":{"const":"pending_submissions_changed","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A user input message persisted as `LogEntry::AnnotatedUserInput` and\nactivated for a turn. Broadcast to every subscribed client so TUI / GUI\ninstances show the same user line that reconnect snapshots replay.","properties":{"data":{"additionalProperties":false,"properties":{"entry_id":{"description":"Stable durable history identity. Older mixed-version producers omit it.","type":["string","null"]},"segments":{"items":{"$ref":"#/$defs/Segment"},"type":"array"}},"required":["segments"],"type":"object"},"event":{"const":"user_message","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A canonical assistant/tool entry has committed to durable history.\nStreaming events remain the in-flight authority; this event supplies the\nstable identity used to reconcile that live block with paged history.","properties":{"data":{"additionalProperties":false,"properties":{"entry":{"$ref":"#/$defs/SessionSnapshotEntry"}},"required":["entry"],"type":"object"},"event":{"const":"session_entry_committed","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"One agent-injected system item committed to history.\n\nCarries the JSON form of `session_store::SystemItem`. Covers\n`Method::Notify` echoes, child-Worker lifecycle events from\n`Method::WorkerEvent`, `@<path>` resolution payloads, and any future\nClients dispatch on the `kind` tag for typed rendering instead\nof parsing free-text prefixes like `[Notification] …` or\n`[File: …]`.\n\nOne event per `LogEntry::AnnotatedSystemItem` commit. Disk-side and\nwire-side are 1:1.","properties":{"data":{"additionalProperties":false,"properties":{"item":true},"required":["item"],"type":"object"},"event":{"const":"system_item","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A new self-driving cycle has begun (IDLE → active transition).\n\nMarker event for the start of an Invoke range; the range extends\nimplicitly until the next `InvokeStart`. Fires for every accepted\n`Method::Submit` (kind=`UserSend`), `Method::Notify` (kind=`Notify`),\n`Method::WorkerEvent` re-injection (kind=`WorkerEvent`), and any other\nIDLE-breaking trigger. Mid-run interrupts (e.g. hook output,\ntyped system reminder insertion that doesn't break IDLE) do not\nemit `InvokeStart` — they appear as `SystemItem` only.\n\nCarries `kind` only; the payload (user text / notify message /\nworker event body) is delivered separately via the immediately\nfollowing `UserMessage` / `SystemItem` event.","properties":{"data":{"additionalProperties":false,"properties":{"kind":{"$ref":"#/$defs/InvokeKind"}},"required":["kind"],"type":"object"},"event":{"const":"invoke_start","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"One AgentTurn boundary opened. An AgentTurn is a maximal run of\nLLM generation calls whose input messages are identical (i.e.\nretries from network errors / 5xx / stream disconnects collapse\ninto the same AgentTurn). When the input changes (a new tool\nresult lands, a user interrupts, etc.), the next LLM call belongs\nto a new AgentTurn.\n\n`turn` is the AgentTurn index from `Engine::turn_count`.\n\nCurrently retry is not yet implemented (`agen-stream-continuation`)\nso AgentTurn and `LlmCall` fire 1:1, but the contract here is\nthe AgentTurn boundary; consumers that want per-LLM-call signals\nmust subscribe to `LlmCallStart` / `LlmCallEnd` instead.","properties":{"data":{"additionalProperties":false,"properties":{"turn":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["turn"],"type":"object"},"event":{"const":"turn_start","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"AgentTurn closed.","properties":{"data":{"additionalProperties":false,"properties":{"result":{"$ref":"#/$defs/TurnResult"},"turn":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["turn","result"],"type":"object"},"event":{"const":"turn_end","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"One LLM generation call started (1 request → 1 generation, retry\nincluded). Multiple `LlmCall*` pairs may fire inside a single\n`TurnStart` / `TurnEnd` pair when a request is retried; today\nthey fire 1:1 because retry is not implemented.\n\n`llm_call` is the worker-wide running counter from\n`Engine::llm_call_count`.","properties":{"data":{"additionalProperties":false,"properties":{"llm_call":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["llm_call"],"type":"object"},"event":{"const":"llm_call_start","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"LLM generation call ended.","properties":{"data":{"additionalProperties":false,"properties":{"llm_call":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["llm_call"],"type":"object"},"event":{"const":"llm_call_end","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A transport-level LLM request retry has been scheduled.\n\nThis is operational state for clients to render while the worker is\nwaiting in backoff. It is not part of conversation history.","properties":{"data":{"additionalProperties":false,"properties":{"elapsed_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"error":{"type":"string"},"failed_attempt":{"description":"The attempt that just failed. 1 origin.","format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"llm_call":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"max_attempts":{"format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"status":{"format":"uint16","maximum":65535.0,"minimum":0.0,"type":["integer","null"]},"wait_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["llm_call","failed_attempt","max_attempts","wait_ms","elapsed_ms","error"],"type":"object"},"event":{"const":"llm_retry","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Stream generation was interrupted after events had begun and the worker\nis continuing with a follow-up LLM request.","properties":{"data":{"additionalProperties":false,"properties":{"attempt":{"format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"llm_call":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"max_attempts":{"format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"reason":{"type":"string"}},"required":["llm_call","attempt","max_attempts","reason"],"type":"object"},"event":{"const":"llm_continuation","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"text":{"type":"string"}},"required":["text"],"type":"object"},"event":{"const":"text_delta","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"text":{"type":"string"}},"required":["text"],"type":"object"},"event":{"const":"text_done","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A reasoning / thinking block has started.\n\nAlways paired with a `ThinkingDone`. `ThinkingDelta` is optional:\nsome providers (or some configurations) emit thinking metadata\nwithout plaintext, in which case Start → Done arrive with no\ndeltas in between. Multiple thinking blocks per turn are allowed.","properties":{"event":{"const":"thinking_start","type":"string"}},"required":["event"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"text":{"type":"string"}},"required":["text"],"type":"object"},"event":{"const":"thinking_delta","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Thinking block completed. `text` is the full accumulated body\n(empty string when the provider didn't emit plaintext).","properties":{"data":{"additionalProperties":false,"properties":{"text":{"type":"string"}},"required":["text"],"type":"object"},"event":{"const":"thinking_done","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"id":{"type":"string"},"name":{"type":"string"}},"required":["id","name"],"type":"object"},"event":{"const":"tool_call_start","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"id":{"type":"string"},"json":{"type":"string"}},"required":["id","json"],"type":"object"},"event":{"const":"tool_call_args_delta","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"arguments":{"type":"string"},"id":{"type":"string"},"name":{"type":"string"}},"required":["id","name","arguments"],"type":"object"},"event":{"const":"tool_call_done","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"disposition":{"anyOf":[{"$ref":"#/$defs/ToolResultDisposition"},{"type":"null"}]},"id":{"type":"string"},"is_error":{"default":false,"type":"boolean"},"output":{"description":"Full tool output. 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Always present; used by clients\nthat only want a 1-line rendering (e.g. collapsed views).","type":"string"}},"required":["id","summary","is_error"],"type":"object"},"event":{"const":"tool_result","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Token accounting for one LLM request.\n\n`input_tokens` is the prompt prefix occupancy (cache reads /\ncache writes included), as normalised by the worker layer.\n`cache_read_input_tokens` is the cache-hit subset of that\noccupancy; subtracting it yields the \"net upload\" the client\nactually paid full price to send on this request, which is what\nthe TUI status line accumulates per turn.","properties":{"data":{"additionalProperties":false,"properties":{"cache_read_input_tokens":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]},"input_tokens":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]},"output_tokens":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]}},"type":"object"},"event":{"const":"usage","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"result":{"$ref":"#/$defs/RunResult"}},"required":["result"],"type":"object"},"event":{"const":"run_end","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"code":{"$ref":"#/$defs/ErrorCode"},"message":{"type":"string"}},"required":["code","message"],"type":"object"},"event":{"const":"error","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Sent exactly once at the start of every client connection.\n\n`entries` is the session-log mirror at subscribe time, serialised\nas the JSON form of `session_store::LogEntry`. This is the\nbulk-reconstruction lane: clients walk the entries to seed their\nderived view.\n\n`greeting` and `status` accompany the snapshot so clients render\nworker identity and current controller state without an extra round\ntrip.\n\nLive updates after the snapshot arrive through the streaming\nevents (`TextDelta` / `ToolCall*` / `ToolResult` / etc.) plus\nrole-specific entry events (`SegmentRotated` / `SystemItem`) —\nthere is no generic \"every committed entry\" broadcast.","properties":{"data":{"additionalProperties":false,"properties":{"greeting":{"$ref":"#/$defs/Greeting"},"in_flight":{"$ref":"#/$defs/InFlightSnapshot","description":"Unfinished model output that has already streamed in the current\nrun but is not yet represented by committed snapshot entries."},"internal_workers":{"description":"Parent-owned Internal Worker sessions visible to this client.\nService-private Internal Workers are deliberately excluded.","items":{"$ref":"#/$defs/InternalWorkerSnapshot"},"type":"array"},"session":{"$ref":"#/$defs/SessionSnapshot"},"state":{"$ref":"#/$defs/WorkerStateSnapshot","description":"Full revisioned live execution state. `Stopped` remains Runtime\ncatalog authority and is deliberately not represented here."}},"required":["session","greeting","state"],"type":"object"},"event":{"const":"snapshot","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A live event from a parent-owned Internal Worker. The payload reuses the\nnormal Worker event vocabulary while the wrapper carries stable origin\nidentity and a per-child revision fence.","properties":{"data":{"additionalProperties":false,"properties":{"event":{"$ref":"#/$defs/Event"},"revision":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"worker":{"$ref":"#/$defs/InternalWorkerRef"}},"required":["worker","revision","event"],"type":"object"},"event":{"const":"internal_worker","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Terminal removal fence for one parent-owned Internal Worker session.\n\nClients discard the matching child and descendants, then ignore later\nnested events for this identity until an authoritative snapshot replaces\nthe projection.","properties":{"data":{"additionalProperties":false,"properties":{"revision":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"worker":{"$ref":"#/$defs/InternalWorkerRef"}},"required":["worker","revision"],"type":"object"},"event":{"const":"internal_worker_removed","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Server-side segment log rotated to a fresh `SegmentStart`.\n\nFires on compaction and on auto-fork when the store head drifts\nA compaction/fork has replaced the authoritative segment. Clients drop\ntheir derived view and reseed from the canonical committed snapshot.","properties":{"data":{"additionalProperties":false,"properties":{"session":{"$ref":"#/$defs/SessionSnapshot"}},"required":["session"],"type":"object"},"event":{"const":"segment_rotated","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Current Worker controller status. Broadcast on every controller-level\ntransition and included in `History` snapshots for late attach.","properties":{"data":{"additionalProperties":false,"properties":{"snapshot":{"$ref":"#/$defs/WorkerStateSnapshot"}},"required":["snapshot"],"type":"object"},"event":{"const":"worker_state","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"acknowledgement":{"$ref":"#/$defs/WorkerCommandAcknowledgement"}},"required":["acknowledgement"],"type":"object"},"event":{"const":"command_acknowledged","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Bounded, provider-owned command telemetry for the live Console. This is\nintentionally not a history entry and is reconstructed from\n`Snapshot.in_flight.commands` after reconnect.","properties":{"data":{"additionalProperties":false,"properties":{"event":{"$ref":"#/$defs/CommandEvent"}},"required":["event"],"type":"object"},"event":{"const":"command","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Reply to `Method::ListCompletions`. Delivered only to the\nrequesting socket (not broadcast). `entries` is empty when no\ncandidates match or when the requested kind has no resolver\nwired up.","properties":{"data":{"additionalProperties":false,"properties":{"entries":{"items":{"$ref":"#/$defs/CompletionEntry"},"type":"array"},"kind":{"$ref":"#/$defs/CompletionKind"}},"required":["kind","entries"],"type":"object"},"event":{"const":"completions","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Reply to `Method::ListRewindTargets`. Clients should only open a picker\nin response to their own pending request; the event may be broadcast.","properties":{"data":{"additionalProperties":false,"properties":{"head_entries":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"targets":{"items":{"$ref":"#/$defs/RewindTarget"},"type":"array"}},"required":["head_entries","targets"],"type":"object"},"event":{"const":"rewind_targets","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A rewind has truncated the authoritative session. `session` is the\nretained canonical snapshot clients should use to reseed display state.","properties":{"data":{"additionalProperties":false,"properties":{"input":{"items":{"$ref":"#/$defs/Segment"},"type":"array"},"session":{"$ref":"#/$defs/SessionSnapshot"},"summary":{"$ref":"#/$defs/RewindSummary"}},"required":["session","input","summary"],"type":"object"},"event":{"const":"rewind_applied","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Reply to `Method::ListWorkers`. 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ay"}},"required":["workers"],"type":"object"},"topic":{"const":"workers","type":"string"}},"required":["topic","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"events":{"items":{"$ref":"#/$defs/Event"},"type":"array"},"worker_id":{"$ref":"#/$defs/SubscriptionWorkerId"}},"required":["worker_id","events"],"type":"object"},"topic":{"const":"worker_protocol","type":"string"}},"required":["topic","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"workdirs":{"items":{"$ref":"#/$defs/WorkspaceSubscriptionWorkdir"},"type":"array"}},"required":["workdirs"],"type":"object"},"topic":{"const":"workspace_workdirs","type":"string"}},"required":["topic","data"],"type":"object"}]},"SubscriptionTerminationCode":{"enum":["lagged","resource_gone","unauthorized","server_shutdown"],"type":"string"},"SubscriptionWorkdirId":{"type":"string"},"SubscriptionWorker":{"additionalProperties":false,"properties":{"availability":{"$ref":"#/$defs/SubscriptionWorkerAvailability","default":"observed","description":"Freshness 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The parent then re-fires\nthis event upward (if it has a parent of its own) to maintain\nthe chain to root.","properties":{"kind":{"const":"scope_sub_delegated","type":"string"},"parent_worker":{"description":"Sub-delegating Worker (= the sender itself).","type":"string"},"scope":{"description":"Scope delegated to the grandchild.","items":{"$ref":"#/$defs/ScopeRule"},"type":"array"},"sub_socket":{"description":"Unix-socket path where the grandchild is reachable.","type":"string"},"sub_worker":{"description":"Name of the grandchild Worker.","type":"string"}},"required":["kind","parent_worker","sub_worker","sub_socket","scope"],"type":"object"}]},"WorkerMaintenanceState":{"enum":["compacting"],"type":"string"},"WorkerRunState":{"enum":["running","pausing","paused","cancelling"],"type":"string"},"WorkerState":{"oneOf":[{"additionalProperties":false,"properties":{"kind":{"const":"idle","type":"string"}},"required":["kind"],"type":"object"},{"additionalProperties":false,"properties":{"kind":{"const":"busy","type":"string"},"state":{"$ref":"#/$defs/WorkerBusyState"}},"required":["kind","state"],"type":"object"}]},"WorkerStateSnapshot":{"additionalProperties":false,"properties":{"last_command_id":{"description":"Highest lifecycle command id observed by this controller instance.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"state":{"$ref":"#/$defs/WorkerState"}},"required":["last_command_id","state"],"type":"object"},"WorkerStatus":{"enum":["idle","running","paused","stopped"],"type":"string"},"WorkspaceSubscriptionWorkdir":{"additionalProperties":false,"description":"Workspace-facing Workdir summary. 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+const subscriptionFrameSchema: unknown = {"$defs":{"Alert":{"additionalProperties":false,"description":"User-facing alert emitted from the Worker layer.\n\nThis is a separate channel from `tracing` (developer logs): entries\nhere are assembled explicitly by the Worker when a condition should be\nsurfaced to the person driving the client. Keep messages short and\nhuman-readable.","properties":{"level":{"$ref":"#/$defs/AlertLevel"},"message":{"type":"string"},"source":{"$ref":"#/$defs/AlertSource"},"timestamp_ms":{"description":"Milliseconds since the Unix epoch.","format":"int64","maximum":9007199254740991.0,"minimum":-9007199254740991.0,"type":"integer"}},"required":["level","source","message","timestamp_ms"],"type":"object"},"AlertLevel":{"enum":["warn","error"],"type":"string"},"AlertSource":{"enum":["worker","engine","compactor","agents_md"],"type":"string"},"CommandEvent":{"oneOf":[{"additionalProperties":false,"properties":{"command_id":{"type":"string"},"kind":{"const":"started","type":"string"},"observed_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"tool_call_id":{"type":["string","null"]}},"required":["kind","command_id","observed_at_ms"],"type":"object"},{"additionalProperties":false,"properties":{"command_id":{"type":"string"},"content":{"type":"string"},"end_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"kind":{"const":"output","type":"string"},"observed_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"start_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"stream":{"$ref":"#/$defs/CommandStream"}},"required":["kind","command_id","stream","start_offset","end_offset","content","observed_at_ms"],"type":"object"},{"additionalProperties":false,"properties":{"command_id":{"type":"string"},"exit_code":{"format":"int32","maximum":2147483647.0,"minimum":-2147483648.0,"type":["integer","null"]},"kind":{"const":"terminal","type":"string"},"observed_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"status":{"$ref":"#/$defs/CommandStatus"},"stderr_end_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"stdout_end_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","command_id","status","stdout_end_offset","stderr_end_offset","observed_at_ms"],"type":"object"}]},"CommandSnapshot":{"additionalProperties":false,"properties":{"command_id":{"type":"string"},"exit_code":{"format":"int32","maximum":2147483647.0,"minimum":-2147483648.0,"type":["integer","null"]},"last_output_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]},"observed_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"started_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"status":{"$ref":"#/$defs/CommandStatus"},"stderr":{"$ref":"#/$defs/CommandStreamSlice"},"stdout":{"$ref":"#/$defs/CommandStreamSlice"},"tool_call_id":{"type":["string","null"]}},"required":["command_id","status","started_at_ms","observed_at_ms","stdout","stderr"],"type":"object"},"CommandStatus":{"description":"Live provider-owned command status. These values are operational Console\nstate only and are never appended to Worker history.","enum":["running","completed","failed","timed_out","cancelled"],"type":"string"},"CommandStream":{"enum":["stdout","stderr"],"type":"string"},"CommandStreamSlice":{"additionalProperties":false,"properties":{"content":{"type":"string"},"end_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"start_offset":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"truncated":{"type":"boolean"}},"required":["start_offset","end_offset","content","truncated"],"type":"object"},"CompactionLifecycle":{"additionalProperties":false,"description":"Stable parent-owned lifecycle for one compaction run.","properties":{"compaction_id":{"type":"string"},"ended_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]},"error":{"type":["string","null"]},"internal_worker":{"anyOf":[{"$ref":"#/$defs/InternalWorkerRef"},{"type":"null"}]},"new_segment_id":{"type":["string","null"]},"revision":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"schema_version":{"format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"started_at_ms":{"description":"Milliseconds since the Unix epoch.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"state":{"$ref":"#/$defs/CompactionLifecycleState"},"summary":{"type":["string","null"]}},"required":["schema_version","compaction_id","revision","state","started_at_ms"],"type":"object"},"CompactionLifecycleState":{"enum":["running","done","failed","interrupted"],"type":"string"},"CompactionPhase":{"enum":["preparing","summarizing","committing"],"type":"string"},"CompactionTrigger":{"enum":["manual","pre_run","request_threshold"],"type":"string"},"CompletionEntry":{"additionalProperties":false,"description":"One completion candidate for a prefix query.\n\n`value` is a path (file kind).","properties":{"is_dir":{"default":false,"type":"boolean"},"value":{"type":"string"}},"required":["value","is_dir"],"type":"object"},"CompletionKind":{"description":"Kind of completion requested by `Method::ListCompletions`.\n\nMirrors the completion prefix sigil: `@` → `File`.","enum":["file"],"type":"string"},"ContextTokenSource":{"description":"Provenance of the current-context token count in a [`Greeting`].","oneOf":[{"const":"measured","description":"Provider-reported input occupancy from the most recent LLM request.","type":"string"},{"const":"estimated","description":"Current history projected from the Worker's token accounting records.","type":"string"}]},"ContextUsage":{"additionalProperties":false,"description":"Current prompt-context occupancy, distinct from cumulative run traffic.","properties":{"source":{"$ref":"#/$defs/ContextTokenSource"},"tokens":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["tokens","source"],"type":"object"},"ErrorCode":{"enum":["already_running","not_running","not_paused","provider_error","tool_error","invalid_request","internal"],"type":"string"},"Event":{"oneOf":[{"additionalProperties":false,"description":"Durable Submit acceptance. A `Queued` receipt follows the durable FIFO\ncheckpoint. A `Started` receipt follows the pending activation checkpoint;\nthe corresponding [`Event::UserMessage`] marks the later history commit.\nRepeating the same request id and exact payload returns the same receipt\nwithout appending or activating twice.","properties":{"data":{"additionalProperties":false,"properties":{"disposition":{"$ref":"#/$defs/SubmissionDisposition"},"submission_id":{"type":"string"},"submission_request_id":{"type":"string"}},"required":["submission_request_id","submission_id","disposition"],"type":"object"},"event":{"const":"submission_accepted","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Correlated rejection before durable acceptance.","properties":{"data":{"additionalProperties":false,"properties":{"message":{"type":"string"},"submission_request_id":{"type":"string"}},"required":["submission_request_id","message"],"type":"object"},"event":{"const":"submission_rejected","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Durable notification acceptance. The request identity is persisted with\nthe notification receipt before this event is emitted. Repeating the\nsame request id and exact payload returns the same acknowledgement\nwithout appending the notification twice.","properties":{"data":{"additionalProperties":false,"properties":{"notification_request_id":{"type":"string"}},"required":["notification_request_id"],"type":"object"},"event":{"const":"notification_accepted","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Correlated notification rejection before durable acceptance.","properties":{"data":{"additionalProperties":false,"properties":{"message":{"type":"string"},"notification_request_id":{"type":"string"}},"required":["notification_request_id","message"],"type":"object"},"event":{"const":"notification_rejected","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Revisioned FIFO replacement following enqueue, activation, cancel, or clear.","properties":{"data":{"additionalProperties":false,"properties":{"pending":{"$ref":"#/$defs/PendingSubmissionsSnapshot"}},"required":["pending"],"type":"object"},"event":{"const":"pending_submissions_changed","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A user input message persisted as `LogEntry::AnnotatedUserInput` and\nactivated for a turn. Broadcast to every subscribed client so TUI / GUI\ninstances show the same user line that reconnect snapshots replay.","properties":{"data":{"additionalProperties":false,"properties":{"entry_id":{"description":"Stable durable history identity. Older mixed-version producers omit it.","type":["string","null"]},"segments":{"items":{"$ref":"#/$defs/Segment"},"type":"array"}},"required":["segments"],"type":"object"},"event":{"const":"user_message","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A canonical assistant/tool entry has committed to durable history.\nStreaming events remain the in-flight authority; this event supplies the\nstable identity used to reconcile that live block with paged history.","properties":{"data":{"additionalProperties":false,"properties":{"entry":{"$ref":"#/$defs/SessionSnapshotEntry"}},"required":["entry"],"type":"object"},"event":{"const":"session_entry_committed","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"One agent-injected system item committed to history.\n\nCarries the JSON form of `session_store::SystemItem`. Covers\n`Method::Notify` echoes, child-Worker lifecycle events from\n`Method::WorkerEvent`, `@<path>` resolution payloads, and any future\nClients dispatch on the `kind` tag for typed rendering instead\nof parsing free-text prefixes like `[Notification] …` or\n`[File: …]`.\n\nOne event per `LogEntry::AnnotatedSystemItem` commit. Disk-side and\nwire-side are 1:1.","properties":{"data":{"additionalProperties":false,"properties":{"item":true},"required":["item"],"type":"object"},"event":{"const":"system_item","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A new self-driving cycle has begun (IDLE → active transition).\n\nMarker event for the start of an Invoke range; the range extends\nimplicitly until the next `InvokeStart`. Fires for every accepted\n`Method::Submit` (kind=`UserSend`), `Method::Notify` (kind=`Notify`),\n`Method::WorkerEvent` re-injection (kind=`WorkerEvent`), and any other\nIDLE-breaking trigger. Mid-run interrupts (e.g. hook output,\ntyped system reminder insertion that doesn't break IDLE) do not\nemit `InvokeStart` — they appear as `SystemItem` only.\n\nCarries `kind` only; the payload (user text / notify message /\nworker event body) is delivered separately via the immediately\nfollowing `UserMessage` / `SystemItem` event.","properties":{"data":{"additionalProperties":false,"properties":{"kind":{"$ref":"#/$defs/InvokeKind"}},"required":["kind"],"type":"object"},"event":{"const":"invoke_start","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"One AgentTurn boundary opened. An AgentTurn is a maximal run of\nLLM generation calls whose input messages are identical (i.e.\nretries from network errors / 5xx / stream disconnects collapse\ninto the same AgentTurn). When the input changes (a new tool\nresult lands, a user interrupts, etc.), the next LLM call belongs\nto a new AgentTurn.\n\n`turn` is the AgentTurn index from `Engine::turn_count`.\n\nCurrently retry is not yet implemented (`agen-stream-continuation`)\nso AgentTurn and `LlmCall` fire 1:1, but the contract here is\nthe AgentTurn boundary; consumers that want per-LLM-call signals\nmust subscribe to `LlmCallStart` / `LlmCallEnd` instead.","properties":{"data":{"additionalProperties":false,"properties":{"turn":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["turn"],"type":"object"},"event":{"const":"turn_start","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"AgentTurn closed.","properties":{"data":{"additionalProperties":false,"properties":{"result":{"$ref":"#/$defs/TurnResult"},"turn":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["turn","result"],"type":"object"},"event":{"const":"turn_end","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"One LLM generation call started (1 request → 1 generation, retry\nincluded). Multiple `LlmCall*` pairs may fire inside a single\n`TurnStart` / `TurnEnd` pair when a request is retried; today\nthey fire 1:1 because retry is not implemented.\n\n`llm_call` is the worker-wide running counter from\n`Engine::llm_call_count`.","properties":{"data":{"additionalProperties":false,"properties":{"llm_call":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["llm_call"],"type":"object"},"event":{"const":"llm_call_start","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"LLM generation call ended.","properties":{"data":{"additionalProperties":false,"properties":{"llm_call":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["llm_call"],"type":"object"},"event":{"const":"llm_call_end","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A transport-level LLM request retry has been scheduled.\n\nThis is operational state for clients to render while the worker is\nwaiting in backoff. It is not part of conversation history.","properties":{"data":{"additionalProperties":false,"properties":{"elapsed_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"error":{"type":"string"},"failed_attempt":{"description":"The attempt that just failed. 1 origin.","format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"llm_call":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"max_attempts":{"format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"status":{"format":"uint16","maximum":65535.0,"minimum":0.0,"type":["integer","null"]},"wait_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["llm_call","failed_attempt","max_attempts","wait_ms","elapsed_ms","error"],"type":"object"},"event":{"const":"llm_retry","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Stream generation was interrupted after events had begun and the worker\nis continuing with a follow-up LLM request.","properties":{"data":{"additionalProperties":false,"properties":{"attempt":{"format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"llm_call":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"max_attempts":{"format":"uint32","maximum":4294967295.0,"minimum":0.0,"type":"integer"},"reason":{"type":"string"}},"required":["llm_call","attempt","max_attempts","reason"],"type":"object"},"event":{"const":"llm_continuation","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"text":{"type":"string"}},"required":["text"],"type":"object"},"event":{"const":"text_delta","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"text":{"type":"string"}},"required":["text"],"type":"object"},"event":{"const":"text_done","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A reasoning / thinking block has started.\n\nAlways paired with a `ThinkingDone`. `ThinkingDelta` is optional:\nsome providers (or some configurations) emit thinking metadata\nwithout plaintext, in which case Start → Done arrive with no\ndeltas in between. Multiple thinking blocks per turn are allowed.","properties":{"event":{"const":"thinking_start","type":"string"}},"required":["event"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"text":{"type":"string"}},"required":["text"],"type":"object"},"event":{"const":"thinking_delta","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Thinking block completed. `text` is the full accumulated body\n(empty string when the provider didn't emit plaintext).","properties":{"data":{"additionalProperties":false,"properties":{"text":{"type":"string"}},"required":["text"],"type":"object"},"event":{"const":"thinking_done","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"id":{"type":"string"},"name":{"type":"string"}},"required":["id","name"],"type":"object"},"event":{"const":"tool_call_start","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"id":{"type":"string"},"json":{"type":"string"}},"required":["id","json"],"type":"object"},"event":{"const":"tool_call_args_delta","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"arguments":{"type":"string"},"id":{"type":"string"},"name":{"type":"string"}},"required":["id","name","arguments"],"type":"object"},"event":{"const":"tool_call_done","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"disposition":{"anyOf":[{"$ref":"#/$defs/ToolResultDisposition"},{"type":"null"}]},"id":{"type":"string"},"is_error":{"default":false,"type":"boolean"},"output":{"description":"Full tool output. Absent when the tool chose to return\nsummary-only, or when the result was pruned.","type":["string","null"]},"summary":{"description":"Short human-readable summary. Always present; used by clients\nthat only want a 1-line rendering (e.g. collapsed views).","type":"string"}},"required":["id","summary","is_error"],"type":"object"},"event":{"const":"tool_result","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Token accounting for one LLM request.\n\n`input_tokens` is the prompt prefix occupancy (cache reads /\ncache writes included), as normalised by the worker layer.\n`cache_read_input_tokens` is the cache-hit subset of that\noccupancy; subtracting it yields the \"net upload\" the client\nactually paid full price to send on this request, which is what\nthe TUI status line accumulates per turn.","properties":{"data":{"additionalProperties":false,"properties":{"cache_read_input_tokens":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]},"input_tokens":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]},"output_tokens":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":["integer","null"]}},"type":"object"},"event":{"const":"usage","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Authoritative current-context occupancy after a non-request boundary.\n\nUnlike [`Event::Usage`], this is not cumulative request traffic. It lets\nconnected clients converge with reconnect snapshots after run completion,\ncompaction, rewind, and other history rewrites. `None` explicitly means\nthe current value is unavailable and stale occupancy must be cleared.","properties":{"data":{"additionalProperties":false,"properties":{"usage":{"anyOf":[{"$ref":"#/$defs/ContextUsage"},{"type":"null"}]}},"type":"object"},"event":{"const":"context_usage","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"result":{"$ref":"#/$defs/RunResult"}},"required":["result"],"type":"object"},"event":{"const":"run_end","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"code":{"$ref":"#/$defs/ErrorCode"},"message":{"type":"string"}},"required":["code","message"],"type":"object"},"event":{"const":"error","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Sent exactly once at the start of every client connection.\n\n`entries` is the session-log mirror at subscribe time, serialised\nas the JSON form of `session_store::LogEntry`. This is the\nbulk-reconstruction lane: clients walk the entries to seed their\nderived view.\n\n`greeting` and `status` accompany the snapshot so clients render\nworker identity and current controller state without an extra round\ntrip.\n\nLive updates after the snapshot arrive through the streaming\nevents (`TextDelta` / `ToolCall*` / `ToolResult` / etc.) plus\nrole-specific entry events (`SegmentRotated` / `SystemItem`) —\nthere is no generic \"every committed entry\" broadcast.","properties":{"data":{"additionalProperties":false,"properties":{"greeting":{"$ref":"#/$defs/Greeting"},"in_flight":{"$ref":"#/$defs/InFlightSnapshot","description":"Unfinished model output that has already streamed in the current\nrun but is not yet represented by committed snapshot entries."},"internal_workers":{"description":"Parent-owned Internal Worker sessions visible to this client.\nService-private Internal Workers are deliberately excluded.","items":{"$ref":"#/$defs/InternalWorkerSnapshot"},"type":"array"},"session":{"$ref":"#/$defs/SessionSnapshot"},"state":{"$ref":"#/$defs/WorkerStateSnapshot","description":"Full revisioned live execution state. `Stopped` remains Runtime\ncatalog authority and is deliberately not represented here."}},"required":["session","greeting","state"],"type":"object"},"event":{"const":"snapshot","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A live event from a parent-owned Internal Worker. The payload reuses the\nnormal Worker event vocabulary while the wrapper carries stable origin\nidentity and a per-child revision fence.","properties":{"data":{"additionalProperties":false,"properties":{"event":{"$ref":"#/$defs/Event"},"revision":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"worker":{"$ref":"#/$defs/InternalWorkerRef"}},"required":["worker","revision","event"],"type":"object"},"event":{"const":"internal_worker","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Terminal removal fence for one parent-owned Internal Worker session.\n\nClients discard the matching child and descendants, then ignore later\nnested events for this identity until an authoritative snapshot replaces\nthe projection.","properties":{"data":{"additionalProperties":false,"properties":{"revision":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"worker":{"$ref":"#/$defs/InternalWorkerRef"}},"required":["worker","revision"],"type":"object"},"event":{"const":"internal_worker_removed","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Server-side segment log rotated to a fresh `SegmentStart`.\n\nFires on compaction and on auto-fork when the store head drifts\nA compaction/fork has replaced the authoritative segment. Clients drop\ntheir derived view and reseed from the canonical committed snapshot.","properties":{"data":{"additionalProperties":false,"properties":{"session":{"$ref":"#/$defs/SessionSnapshot"}},"required":["session"],"type":"object"},"event":{"const":"segment_rotated","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Current Worker controller status. Broadcast on every controller-level\ntransition and included in `History` snapshots for late attach.","properties":{"data":{"additionalProperties":false,"properties":{"snapshot":{"$ref":"#/$defs/WorkerStateSnapshot"}},"required":["snapshot"],"type":"object"},"event":{"const":"worker_state","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"acknowledgement":{"$ref":"#/$defs/WorkerCommandAcknowledgement"}},"required":["acknowledgement"],"type":"object"},"event":{"const":"command_acknowledged","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Bounded, provider-owned command telemetry for the live Console. This is\nintentionally not a history entry and is reconstructed from\n`Snapshot.in_flight.commands` after reconnect.","properties":{"data":{"additionalProperties":false,"properties":{"event":{"$ref":"#/$defs/CommandEvent"}},"required":["event"],"type":"object"},"event":{"const":"command","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Reply to `Method::ListCompletions`. Delivered only to the\nrequesting socket (not broadcast). `entries` is empty when no\ncandidates match or when the requested kind has no resolver\nwired up.","properties":{"data":{"additionalProperties":false,"properties":{"entries":{"items":{"$ref":"#/$defs/CompletionEntry"},"type":"array"},"kind":{"$ref":"#/$defs/CompletionKind"}},"required":["kind","entries"],"type":"object"},"event":{"const":"completions","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Reply to `Method::ListRewindTargets`. Clients should only open a picker\nin response to their own pending request; the event may be broadcast.","properties":{"data":{"additionalProperties":false,"properties":{"head_entries":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"targets":{"items":{"$ref":"#/$defs/RewindTarget"},"type":"array"}},"required":["head_entries","targets"],"type":"object"},"event":{"const":"rewind_targets","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"A rewind has truncated the authoritative session. `session` is the\nretained canonical snapshot clients should use to reseed display state.","properties":{"data":{"additionalProperties":false,"properties":{"input":{"items":{"$ref":"#/$defs/Segment"},"type":"array"},"session":{"$ref":"#/$defs/SessionSnapshot"},"summary":{"$ref":"#/$defs/RewindSummary"}},"required":["session","input","summary"],"type":"object"},"event":{"const":"rewind_applied","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"description":"Reply to `Method::ListWorkers`. 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Worker resolves readable files to\n`[File: <path>]` attachments and readable normal directories to shallow\n`[Dir: <path>]` listings; the flattened user text keeps the literal\n`@<path>` placeholder either way.","properties":{"kind":{"const":"file_ref","type":"string"},"path":{"type":"string"}},"required":["kind","path"],"type":"object"},{"additionalProperties":false,"description":"Source-qualified request for the host to start a Flow before committing\nthis user input. Runtime resolves it through Workspace authority and\nreplaces it with the entered state's instructions before Worker-side\ninput resolution.","properties":{"kind":{"const":"flow","type":"string"},"selector":{"type":"string"}},"required":["kind","selector"],"type":"object"},{"additionalProperties":false,"description":"Unknown variant from a newer client. Worker treats this as an\nunresolved input — surfaces an alert and inserts a placeholder.\nRound-trip is lossy: re-serializing yields `{\"kind\":\"unknown\"}`.","properties":{"kind":{"const":"unknown","type":"string"}},"required":["kind"],"type":"object"}]},"SessionContentPart":{"oneOf":[{"additionalProperties":false,"properties":{"kind":{"const":"text","type":"string"},"text":{"type":"string"}},"required":["kind","text"],"type":"object"},{"additionalProperties":false,"properties":{"kind":{"const":"refusal","type":"string"},"refusal":{"type":"string"}},"required":["kind","refusal"],"type":"object"}]},"SessionEntryProvenance":{"enum":["human_input","worker_input","flow_instruction","backend_instruction","model_output","tool_output","derived_summary","legacy_unknown"],"type":"string"},"SessionMessageRole":{"enum":["user","assistant"],"type":"string"},"SessionSnapshot":{"additionalProperties":false,"description":"Canonical, storage-independent projection of committed session history.\n\nWorker protocols expose this DTO instead of append-log records. New\nstorage variants can therefore be added without teaching every client how\nto replay the durable log format.","properties":{"entries":{"items":{"$ref":"#/$defs/SessionSnapshotEntry"},"type":"array"},"pending_submissions":{"$ref":"#/$defs/PendingSubmissionsSnapshot","default":{"head_id":null,"notification_count":0,"revision":0,"submissions":[]}}},"required":["entries","pending_submissions"],"type":"object"},"SessionSnapshotEntry":{"oneOf":[{"additionalProperties":false,"properties":{"derived_from":{"items":{"type":"string"},"type":"array"},"entry_id":{"description":"Stable identity from durable history metadata, or a deterministic\nidentity derived from the legacy segment and log position.","type":"string"},"kind":{"const":"user_input","type":"string"},"provenance":{"$ref":"#/$defs/SessionEntryProvenance"},"segments":{"items":{"$ref":"#/$defs/Segment"},"type":"array"},"timestamp":{"description":"Timestamp copied from the durable log record that commits this entry.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","segments","entry_id","timestamp","provenance"],"type":"object"},{"additionalProperties":false,"properties":{"content":{"items":{"$ref":"#/$defs/SessionContentPart"},"type":"array"},"derived_from":{"items":{"type":"string"},"type":"array"},"entry_id":{"description":"Stable identity from durable history metadata, or a deterministic\nidentity derived from the legacy segment and log position.","type":"string"},"kind":{"const":"message","type":"string"},"provenance":{"$ref":"#/$defs/SessionEntryProvenance"},"role":{"$ref":"#/$defs/SessionMessageRole"},"timestamp":{"description":"Timestamp copied from the durable log record that commits this entry.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","role","content","entry_id","timestamp","provenance"],"type":"object"},{"additionalProperties":false,"properties":{"arguments":{"type":"string"},"call_id":{"type":"string"},"derived_from":{"items":{"type":"string"},"type":"array"},"entry_id":{"description":"Stable identity from durable history metadata, or a deterministic\nidentity derived from the legacy segment and log position.","type":"string"},"kind":{"const":"tool_call","type":"string"},"name":{"type":"string"},"provenance":{"$ref":"#/$defs/SessionEntryProvenance"},"timestamp":{"description":"Timestamp copied from the durable log record that commits this entry.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","call_id","name","arguments","entry_id","timestamp","provenance"],"type":"object"},{"additionalProperties":false,"properties":{"attachments":{"items":{"$ref":"#/$defs/SessionToolAttachment"},"type":"array"},"call_id":{"type":"string"},"content":{"type":["string","null"]},"derived_from":{"items":{"type":"string"},"type":"array"},"entry_id":{"description":"Stable identity from durable history metadata, or a deterministic\nidentity derived from the legacy segment and log position.","type":"string"},"is_error":{"type":"boolean"},"kind":{"const":"tool_result","type":"string"},"provenance":{"$ref":"#/$defs/SessionEntryProvenance"},"summary":{"type":"string"},"timestamp":{"description":"Timestamp copied from the durable log record that commits this entry.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","call_id","summary","is_error","entry_id","timestamp","provenance"],"type":"object"},{"additionalProperties":false,"properties":{"content":{"type":"string"},"data":true,"derived_from":{"items":{"type":"string"},"type":"array"},"entry_id":{"description":"Stable identity from durable history metadata, or a deterministic\nidentity derived from the legacy segment and log position.","type":"string"},"item_kind":{"type":"string"},"kind":{"const":"system_item","type":"string"},"provenance":{"$ref":"#/$defs/SessionEntryProvenance"},"timestamp":{"description":"Timestamp copied from the durable log record that commits this entry.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","item_kind","content","entry_id","timestamp","provenance"],"type":"object"},{"additionalProperties":false,"description":"Durable, non-terminal control return from one logical Run. This is not a\ncompleted run and must not be used to infer the current Worker state.","properties":{"active_run_turn_count":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"derived_from":{"items":{"type":"string"},"type":"array"},"entry_id":{"description":"Stable identity from durable history metadata, or a deterministic\nidentity derived from the legacy segment and log position.","type":"string"},"kind":{"const":"run_yielded","type":"string"},"provenance":{"$ref":"#/$defs/SessionEntryProvenance"},"reason":{"$ref":"#/$defs/RunYieldReason"},"timestamp":{"description":"Timestamp copied from the durable log record that commits this entry.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","reason","active_run_turn_count","entry_id","timestamp","provenance"],"type":"object"},{"additionalProperties":false,"description":"Durable boundary immediately before Engine execution resumes. The source\ndistinguishes automatic compaction continuation from an intentional\nuser-pause resume; it does not prove that later model output occurred.","properties":{"active_run_turn_count":{"format":"uint","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"derived_from":{"items":{"type":"string"},"type":"array"},"entry_id":{"description":"Stable identity from durable history metadata, or a deterministic\nidentity derived from the legacy segment and log position.","type":"string"},"kind":{"const":"run_resumed","type":"string"},"provenance":{"$ref":"#/$defs/SessionEntryProvenance"},"source":{"$ref":"#/$defs/RunResumeSource"},"timestamp":{"description":"Timestamp copied from the durable log record that commits this entry.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","source","active_run_turn_count","entry_id","timestamp","provenance"],"type":"object"},{"additionalProperties":false,"description":"Durable terminal for an intentional cancellation. Consumers must not\npresent this lifecycle result as an execution failure.","properties":{"derived_from":{"items":{"type":"string"},"type":"array"},"entry_id":{"description":"Stable identity from durable history metadata, or a deterministic\nidentity derived from the legacy segment and log position.","type":"string"},"kind":{"const":"run_cancelled","type":"string"},"provenance":{"$ref":"#/$defs/SessionEntryProvenance"},"timestamp":{"description":"Timestamp copied from the durable log record that commits this entry.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","entry_id","timestamp","provenance"],"type":"object"},{"additionalProperties":false,"properties":{"derived_from":{"items":{"type":"string"},"type":"array"},"entry_id":{"description":"Stable identity from durable history metadata, or a deterministic\nidentity derived from the legacy segment and log position.","type":"string"},"failure":{"anyOf":[{"$ref":"#/$defs/RunFailureKind"},{"type":"null"}]},"kind":{"const":"run_error","type":"string"},"message":{"type":"string"},"provenance":{"$ref":"#/$defs/SessionEntryProvenance"},"timestamp":{"description":"Timestamp copied from the durable log record that commits this entry.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["kind","message","entry_id","timestamp","provenance"],"type":"object"}]},"SessionToolAttachment":{"additionalProperties":false,"properties":{"data_base64":{"description":"Base64-encoded durable attachment body. Public snapshots preserve the\ncommitted multimodal value instead of replacing it with placeholder text.","type":"string"},"media_type":{"type":"string"}},"required":["media_type","data_base64"],"type":"object"},"SubmissionDisposition":{"description":"Durable acceptance result for one idempotent Submit request.","oneOf":[{"enum":["started"],"type":"string"},{"const":"queued","description":"Input is durably held in the session FIFO until eligible for activation.","type":"string"}]},"SubscriptionEvent":{"oneOf":[{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"payload":{"$ref":"#/$defs/SubscriptionEventPayload"},"subscription_id":{"$ref":"#/$defs/SubscriptionId"}},"required":["subscription_id","payload"],"type":"object"},"event":{"const":"event","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"code":{"$ref":"#/$defs/SubscriptionTerminationCode"},"message":{"type":"string"},"subscription_id":{"$ref":"#/$defs/SubscriptionId"}},"required":["subscription_id","code","message"],"type":"object"},"event":{"const":"subscription_closed","type":"string"}},"required":["event","data"],"type":"object"}]},"SubscriptionEventPayload":{"oneOf":[{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"worker":{"$ref":"#/$defs/SubscriptionWorker"}},"required":["worker"],"type":"object"},"event":{"const":"worker_upserted","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"runtime_id":{"type":["string","null"]},"worker_id":{"$ref":"#/$defs/SubscriptionWorkerId"}},"required":["worker_id"],"type":"object"},"event":{"const":"worker_removed","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"event":{"$ref":"#/$defs/Event"},"worker_id":{"$ref":"#/$defs/SubscriptionWorkerId"}},"required":["worker_id","event"],"type":"object"},"event":{"const":"worker_protocol","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"workdir":{"$ref":"#/$defs/WorkspaceSubscriptionWorkdir"}},"required":["workdir"],"type":"object"},"event":{"const":"workdir_upserted","type":"string"}},"required":["event","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"working_directory_id":{"$ref":"#/$defs/SubscriptionWorkdirId"}},"required":["working_directory_id"],"type":"object"},"event":{"const":"workdir_removed","type":"string"}},"required":["event","data"],"type":"object"}]},"SubscriptionId":{"type":"string"},"SubscriptionRejectionCode":{"enum":["invalid_request","unsupported_protocol_version","unsupported_selector","unauthorized","resource_not_found","capacity_exceeded","internal"],"type":"string"},"SubscriptionRequest":{"oneOf":[{"additionalProperties":false,"properties":{"method":{"const":"subscribe_events","type":"string"},"params":{"additionalProperties":false,"properties":{"request_id":{"$ref":"#/$defs/SubscriptionRequestId"},"selector":{"$ref":"#/$defs/EventSubscriptionSelector"}},"required":["request_id","selector"],"type":"object"}},"required":["method","params"],"type":"object"},{"additionalProperties":false,"properties":{"method":{"const":"unsubscribe_events","type":"string"},"params":{"additionalProperties":false,"properties":{"request_id":{"$ref":"#/$defs/SubscriptionRequestId"},"subscription_id":{"$ref":"#/$defs/SubscriptionId"}},"required":["request_id","subscription_id"],"type":"object"}},"required":["method","params"],"type":"object"}]},"SubscriptionRequestId":{"type":"string"},"SubscriptionResponse":{"oneOf":[{"additionalProperties":false,"properties":{"payload":{"additionalProperties":false,"properties":{"request_id":{"$ref":"#/$defs/SubscriptionRequestId"},"selector":{"$ref":"#/$defs/EventSubscriptionSelector"},"snapshot":{"$ref":"#/$defs/SubscriptionSnapshot"},"subscription_id":{"$ref":"#/$defs/SubscriptionId"}},"required":["request_id","subscription_id","selector","snapshot"],"type":"object"},"result":{"const":"subscribed","type":"string"}},"required":["result","payload"],"type":"object"},{"additionalProperties":false,"properties":{"payload":{"additionalProperties":false,"properties":{"request_id":{"$ref":"#/$defs/SubscriptionRequestId"},"subscription_id":{"$ref":"#/$defs/SubscriptionId"}},"required":["request_id","subscription_id"],"type":"object"},"result":{"const":"unsubscribed","type":"string"}},"required":["result","payload"],"type":"object"},{"additionalProperties":false,"properties":{"payload":{"additionalProperties":false,"properties":{"code":{"$ref":"#/$defs/SubscriptionRejectionCode"},"message":{"type":"string"},"request_id":{"$ref":"#/$defs/SubscriptionRequestId"},"subscription_id":{"anyOf":[{"$ref":"#/$defs/SubscriptionId"},{"type":"null"}]}},"required":["request_id","code","message"],"type":"object"},"result":{"const":"subscription_rejected","type":"string"}},"required":["result","payload"],"type":"object"}]},"SubscriptionSnapshot":{"oneOf":[{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"workers":{"items":{"$ref":"#/$defs/SubscriptionWorker"},"type":"array"}},"required":["workers"],"type":"object"},"topic":{"const":"workers","type":"string"}},"required":["topic","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"events":{"items":{"$ref":"#/$defs/Event"},"type":"array"},"worker_id":{"$ref":"#/$defs/SubscriptionWorkerId"}},"required":["worker_id","events"],"type":"object"},"topic":{"const":"worker_protocol","type":"string"}},"required":["topic","data"],"type":"object"},{"additionalProperties":false,"properties":{"data":{"additionalProperties":false,"properties":{"workdirs":{"items":{"$ref":"#/$defs/WorkspaceSubscriptionWorkdir"},"type":"array"}},"required":["workdirs"],"type":"object"},"topic":{"const":"workspace_workdirs","type":"string"}},"required":["topic","data"],"type":"object"}]},"SubscriptionTerminationCode":{"enum":["lagged","resource_gone","unauthorized","server_shutdown"],"type":"string"},"SubscriptionWorkdirId":{"type":"string"},"SubscriptionWorker":{"additionalProperties":false,"properties":{"availability":{"$ref":"#/$defs/SubscriptionWorkerAvailability","default":"observed","description":"Freshness of the Runtime-backed observation carried by this projection.\n`Unavailable` preserves catalog membership without claiming that execution stopped."},"display_name":{"type":["string","null"]},"has_running_internal_workers":{"default":false,"type":"boolean"},"job":{"anyOf":[{"$ref":"#/$defs/SubscriptionWorkerJob"},{"type":"null"}],"description":"Backend-owned Job binding. Runtime producers leave this unset; the\nWorkspace projection enriches both snapshots and live updates."},"profile":{"type":["string","null"]},"resource_key":{"description":"Workspace-scoped canonical resource key. Runtime producers leave this unset;\nWorkspace-facing projections must populate it before publishing the Worker.","type":["string","null"]},"runtime_id":{"description":"Set by the Workspace Server when projecting a Runtime-owned Worker to clients.\nRuntime producers leave this unset because the connection identifies the Runtime.","type":["string","null"]},"state":{"$ref":"#/$defs/SubscriptionWorkerState","description":"Runtime catalog lifecycle compatibility projection; not foreground-state authority."},"workdir_attachments":{"items":{"$ref":"#/$defs/SubscriptionWorkerWorkdirAttachment"},"type":"array"},"worker_id":{"$ref":"#/$defs/SubscriptionWorkerId"},"worker_state":{"anyOf":[{"$ref":"#/$defs/WorkerStateSnapshot"},{"type":"null"}],"description":"Latest foreground state observed from the Worker. This remains\nabsent until an authoritative Worker snapshot/event has been applied."},"workspace_id":{"type":["string","null"]}},"required":["worker_id","state","availability","has_running_internal_workers"],"type":"object"},"SubscriptionWorkerAvailability":{"description":"Whether the Workspace Server has a current Runtime observation for a Worker.\n\n`Unavailable` deliberately does not imply `Stopped`: it means the last observed\nlifecycle state is retained while the Runtime observation source is unavailable.","enum":["observed","unavailable"],"type":"string"},"SubscriptionWorkerId":{"type":"string"},"SubscriptionWorkerIds":{"description":"A bounded, canonical worker-id set. Ordering on the wire and in equality/hash\nsemantics is lexical, so equivalent selectors aggregate to one upstream key.","items":{"$ref":"#/$defs/SubscriptionWorkerId"},"type":"array"},"SubscriptionWorkerJob":{"additionalProperties":false,"properties":{"attempt_id":{"type":"string"},"job_id":{"type":"string"},"purpose":{"type":"string"}},"required":["job_id","attempt_id","purpose"],"type":"object"},"SubscriptionWorkerProtocolMethod":{"additionalProperties":false,"properties":{"method":{"$ref":"#/$defs/Method"},"subscription_id":{"$ref":"#/$defs/SubscriptionId"}},"required":["subscription_id","method"],"type":"object"},"SubscriptionWorkerState":{"enum":["idle","running","paused","stopped"],"type":"string"},"SubscriptionWorkerWorkdirAttachment":{"additionalProperties":false,"properties":{"alias":{"description":"Stable Worker-local routing alias.","type":"string"},"repository_key":{"type":["string","null"]},"working_directory_id":{"$ref":"#/$defs/SubscriptionWorkdirId"}},"required":["alias","working_directory_id"],"type":"object"},"SymlinkPolicy":{"description":"Symbolic-link identity used by one filesystem allow rule.\n\n`Resolved` is the least authority and the default: access is matched\nagainst the provider-resolved target. `Logical` intentionally grants the\npath as presented through the Workdir, even when it aliases another target.","enum":["resolved","logical"],"type":"string"},"ToolResultDisposition":{"enum":["success","error","interrupted","cancelled","outcome_unknown"],"type":"string"},"TurnResult":{"enum":["finished","paused"],"type":"string"},"UploadedFileAvailability":{"description":"Availability recorded for an uploaded client-local file.","enum":["available","unavailable","integrity_failed"],"type":"string"},"UploadedFileRef":{"additionalProperties":false,"description":"Session-owned immutable reference to a client-local uploaded file.\n\nUpload transports return an unbound reference. Worker fills\n`source_entry_id` immediately before the containing user input is committed;\ncommitted Session Log and public snapshot records therefore always retain\nthe durable source-entry identity without storing the file body.","properties":{"artifact_id":{"type":"string"},"availability":{"$ref":"#/$defs/UploadedFileAvailability"},"byte_len":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"created_at_ms":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"file_name":{"type":"string"},"media_type":{"type":"string"},"sha256":{"type":"string"},"source_entry_id":{"type":["string","null"]}},"required":["artifact_id","file_name","media_type","created_at_ms","availability","byte_len","sha256"],"type":"object"},"WorkerBusyState":{"oneOf":[{"additionalProperties":false,"properties":{"kind":{"const":"run","type":"string"},"state":{"$ref":"#/$defs/WorkerRunState"}},"required":["kind","state"],"type":"object"},{"additionalProperties":false,"properties":{"kind":{"const":"maintenance","type":"string"},"state":{"$ref":"#/$defs/WorkerMaintenanceState"}},"required":["kind","state"],"type":"object"}]},"WorkerCommandAcknowledgement":{"additionalProperties":false,"properties":{"command":{"$ref":"#/$defs/WorkerCommandKind"},"command_id":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"disposition":{"$ref":"#/$defs/WorkerCommandDisposition"},"state":{"$ref":"#/$defs/WorkerStateSnapshot","description":"The complete authoritative state observed after command admission."}},"required":["command_id","command","disposition","state"],"type":"object"},"WorkerCommandDisposition":{"enum":["accepted","stale_command_id","conflict","invalid_state"],"type":"string"},"WorkerCommandEnvelope":{"additionalProperties":false,"description":"Caller-owned identity for one state-changing Worker command.\n\nA controller accepts command ids in strictly increasing order. Exact retries\nof an accepted id must retain the same command kind.","properties":{"command_id":{"format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"}},"required":["command_id"],"type":"object"},"WorkerCommandKind":{"enum":["resume","cancel","pause","compact","shutdown"],"type":"string"},"WorkerEvent":{"description":"Typed lifecycle events sent from a child Worker to its parent.\n\nDelivered as `Method::WorkerEvent` over the parent's Unix socket. The\nparent Controller always applies variant-specific side effects\n(registry / worker-allocation updates). Agent-visible variants are also\nqueued into the notification buffer; control-plane-only variants are\nnot injected into the parent's LLM context.\n\nTransport is fire-and-forget; receivers must tolerate out-of-order\ndelivery (e.g. `TurnEnded` arriving after `ShutDown` for the same\nchild Worker).","oneOf":[{"additionalProperties":false,"description":"Child finished one turn and is back to IDLE.","properties":{"kind":{"const":"turn_ended","type":"string"},"worker_name":{"type":"string"}},"required":["kind","worker_name"],"type":"object"},{"additionalProperties":false,"description":"Engine execution error occurred inside the child's turn.\n\nLimited to worker runtime failures (provider / tool errors) —\ndoes not include transient method-rejection responses such as\n`AlreadyRunning`.","properties":{"kind":{"const":"errored","type":"string"},"message":{"type":"string"},"worker_name":{"type":"string"}},"required":["kind","worker_name","message"],"type":"object"},{"additionalProperties":false,"description":"Child has stopped (controller loop is exiting).","properties":{"kind":{"const":"shut_down","type":"string"},"worker_name":{"type":"string"}},"required":["kind","worker_name"],"type":"object"},{"additionalProperties":false,"description":"Child SubWorker sub-delegated scope to a grandchild SubWorker via `SubWorkerSpawn`.\n\nControl-plane only: receivers apply registry side effects and\npropagate upward, but do not expose this as an agent notification.\n\nThe parent uses this to add the grandchild to its own\n`spawned_workers.json` so it can manage the grandchild directly\neven if the intermediate child dies. The parent then re-fires\nthis event upward (if it has a parent of its own) to maintain\nthe chain to root.","properties":{"kind":{"const":"scope_sub_delegated","type":"string"},"parent_worker":{"description":"Sub-delegating Worker (= the sender itself).","type":"string"},"scope":{"description":"Scope delegated to the grandchild.","items":{"$ref":"#/$defs/ScopeRule"},"type":"array"},"sub_socket":{"description":"Unix-socket path where the grandchild is reachable.","type":"string"},"sub_worker":{"description":"Name of the grandchild Worker.","type":"string"}},"required":["kind","parent_worker","sub_worker","sub_socket","scope"],"type":"object"}]},"WorkerMaintenanceState":{"enum":["compacting"],"type":"string"},"WorkerRunState":{"enum":["running","pausing","paused","cancelling"],"type":"string"},"WorkerState":{"oneOf":[{"additionalProperties":false,"properties":{"kind":{"const":"idle","type":"string"}},"required":["kind"],"type":"object"},{"additionalProperties":false,"properties":{"kind":{"const":"busy","type":"string"},"state":{"$ref":"#/$defs/WorkerBusyState"}},"required":["kind","state"],"type":"object"}]},"WorkerStateSnapshot":{"additionalProperties":false,"properties":{"last_command_id":{"description":"Highest lifecycle command id observed by this controller instance.","format":"uint64","maximum":9007199254740991.0,"minimum":0.0,"type":"integer"},"state":{"$ref":"#/$defs/WorkerState"}},"required":["last_command_id","state"],"type":"object"},"WorkerStatus":{"enum":["idle","running","paused","stopped"],"type":"string"},"WorkspaceSubscriptionWorkdir":{"additionalProperties":false,"description":"Workspace-facing Workdir summary. Backend-generated Repository UUIDs never\nenter this DTO; Workspace Server must resolve the required Repository key.","properties":{"repository_key":{"type":"string"},"state":{"type":"string"},"working_directory_id":{"$ref":"#/$defs/SubscriptionWorkdirId"}},"required":["working_directory_id","repository_key","state"],"type":"object"}},"$schema":"https://json-schema.org/draft/2020-12/schema","description":"Direction is explicit at the outer envelope, while concrete message kinds\nremain typed within each lane.","oneOf":[{"additionalProperties":false,"properties":{"frame":{"const":"request","type":"string"},"message":{"$ref":"#/$defs/SubscriptionRequest"},"protocol_version":{"format":"uint16","maximum":65535.0,"minimum":0.0,"type":"integer"}},"required":["frame","message","protocol_version"],"type":"object"},{"additionalProperties":false,"properties":{"frame":{"const":"response","type":"string"},"message":{"$ref":"#/$defs/SubscriptionResponse"},"protocol_version":{"format":"uint16","maximum":65535.0,"minimum":0.0,"type":"integer"}},"required":["frame","message","protocol_version"],"type":"object"},{"additionalProperties":false,"properties":{"frame":{"const":"event","type":"string"},"message":{"$ref":"#/$defs/SubscriptionEvent"},"protocol_version":{"format":"uint16","maximum":65535.0,"minimum":0.0,"type":"integer"}},"required":["frame","message","protocol_version"],"type":"object"},{"additionalProperties":false,"properties":{"frame":{"const":"worker_protocol","type":"string"},"message":{"$ref":"#/$defs/SubscriptionWorkerProtocolMethod"},"protocol_version":{"format":"uint16","maximum":65535.0,"minimum":0.0,"type":"integer"}},"required":["frame","message","protocol_version"],"type":"object"}],"title":"SubscriptionFrame"};
 export const RUST_SERIALIZED_SUBSCRIPTION_FRAME_FIXTURES: readonly unknown[] =
   [{"protocol_version":2,"frame":"response","message":{"result":"subscribed","payload":{"request_id":"fixture-request","subscription_id":"fixture-subscription","selector":{"topic":"workspace_workers"},"snapshot":{"topic":"workers","data":{"workers":[{"worker_id":"fixture-worker","runtime_id":"fixture-runtime","resource_key":"fixture-worker-resource","availability":"observed","state":"idle","has_running_internal_workers":false,"workspace_id":"fixture-workspace","workdir_attachments":[{"alias":"external","working_directory_id":"fixture-external-workdir"}]}]}}}}},{"protocol_version":2,"frame":"event","message":{"event":"event","data":{"subscription_id":"fixture-subscription","payload":{"event":"worker_protocol","data":{"worker_id":"fixture-worker","event":{"event":"pending_submissions_changed","data":{"pending":{"revision":0,"notification_count":0,"head_id":null,"submissions":[]}}}}}}}},{"protocol_version":2,"frame":"event","message":{"event":"event","data":{"subscription_id":"fixture-subscription","payload":{"event":"worker_protocol","data":{"worker_id":"fixture-worker","event":{"event":"snapshot","data":{"session":{"pending_submissions":{"revision":0,"notification_count":0,"head_id":null,"submissions":[]},"entries":[]},"greeting":{"worker_name":"fixture-worker","cwd":"/fixture","provider":"openai_responses","model":"gpt-6-astra","reasoning":{"kind":"effort","effort":"high"},"scope_summary":"fixture scope","tools":["Read"],"context_window":272000,"context_tokens":142000,"context_usage":{"tokens":142000,"source":"measured"}},"state":{"last_command_id":0,"state":{"kind":"idle"}},"internal_workers":[{"worker":{"session_id":"fixture-child-session","name":"fixture-child","parent_session_id":"fixture-parent-session","kind":"sub_worker"},"revision":1,"session":{"pending_submissions":{"revision":0,"notification_count":0,"head_id":null,"submissions":[]},"entries":[]},"greeting":{"worker_name":"fixture-worker","cwd":"/fixture","provider":"openai_responses","model":"gpt-6-astra","reasoning":{"kind":"effort","effort":"high"},"scope_summary":"fixture scope","tools":["Read"],"context_window":272000,"context_tokens":142000,"context_usage":{"tokens":142000,"source":"measured"}},"status":"idle"}]}}}}}}}];
 const utf8 = new TextEncoder();
diff --git a/web/workspace/src/lib/generated/protocol.ts b/web/workspace/src/lib/generated/protocol.ts
index 7212a00fb..b5f4ab628 100644
--- a/web/workspace/src/lib/generated/protocol.ts
+++ b/web/workspace/src/lib/generated/protocol.ts
@@ -381,7 +381,7 @@ summary: string,
  * Full tool output. Absent when the tool chose to return
  * summary-only, or when the result was pruned.
  */
-output?: string | null, disposition?: ToolResultDisposition | null, is_error: boolean, } } | { "event": "usage", "data": { input_tokens: number | null, output_tokens: number | null, cache_read_input_tokens?: number | null, } } | { "event": "run_end", "data": { result: RunResult, } } | { "event": "error", "data": { code: ErrorCode, message: string, } } | { "event": "snapshot", "data": { session: SessionSnapshot, greeting: Greeting,
+output?: string | null, disposition?: ToolResultDisposition | null, is_error: boolean, } } | { "event": "usage", "data": { input_tokens: number | null, output_tokens: number | null, cache_read_input_tokens?: number | null, } } | { "event": "context_usage", "data": { usage?: ContextUsage | null, } } | { "event": "run_end", "data": { result: RunResult, } } | { "event": "error", "data": { code: ErrorCode, message: string, } } | { "event": "snapshot", "data": { session: SessionSnapshot, greeting: Greeting,
 /**
  * Full revisioned live execution state. `Stopped` remains Runtime
  * catalog authority and is deliberately not represented here.
diff --git a/web/workspace/src/lib/workspace/console/WorkerContextStatus.browser.spec.ts b/web/workspace/src/lib/workspace/console/WorkerContextStatus.browser.spec.ts
index 56003bf51..f45776f62 100644
--- a/web/workspace/src/lib/workspace/console/WorkerContextStatus.browser.spec.ts
+++ b/web/workspace/src/lib/workspace/console/WorkerContextStatus.browser.spec.ts
@@ -39,4 +39,15 @@ test("renders honest unavailable state instead of a fabricated zero percent", as
   });
   expect(view.container.textContent).toContain("claude · 8.2k token budget");
   expect(view.container.textContent).toContain("Context ~12.0k / 64.0k (19%)");
+
+  await view.rerender({
+    metadata: {
+      model: "claude",
+      reasoning: { kind: "budget_tokens", budget_tokens: -1 },
+      contextWindow: 64_000,
+      contextTokens: 12_000,
+      contextSource: "estimated",
+    },
+  });
+  expect(view.container.textContent).toContain("claude · dynamic token budget");
 });
diff --git a/web/workspace/src/lib/workspace/console/model.test.ts b/web/workspace/src/lib/workspace/console/model.test.ts
index 14c7cdf5e..f5b43718b 100644
--- a/web/workspace/src/lib/workspace/console/model.test.ts
+++ b/web/workspace/src/lib/workspace/console/model.test.ts
@@ -224,14 +224,17 @@ Deno.test("snapshot and usage keep current context separate from run traffic", (
       cache_read_input_tokens: 140_000,
       output_tokens: 2_000,
     } }, observedAtMs: 2 },
+    { eventId: "context", event: { event: "context_usage", data: {
+      usage: { tokens: 158_000, source: "estimated" },
+    } }, observedAtMs: 3 },
   ]);
 
   assertEquals(projection.workerMetadata, {
     model: "gpt-6-astra",
     reasoning: { kind: "effort", effort: "high" },
     contextWindow: 272_000,
-    contextTokens: 150_000,
-    contextSource: "measured",
+    contextTokens: 158_000,
+    contextSource: "estimated",
   });
   assertEquals(projection.runActivity.uploadTokens, 10_000);
   assertEquals(projection.runActivity.outputTokens, 2_000);
@@ -279,6 +282,20 @@ Deno.test("unknown and destructive boundaries never fabricate context percentage
   ]);
   assertEquals(projection.workerMetadata?.contextTokens, null);
   assertEquals(projection.workerMetadata?.contextSource, null);
+
+  projection = projectConsole([
+    { eventId: "live", event: live },
+    { eventId: "rewind", event: { event: "rewind_applied", data: {
+      session: canonicalSession([]),
+      input: [],
+      summary: { truncated_to_entries: 0, discarded_entries: 1, tool_side_effect_warning: false },
+    } } },
+    { eventId: "post-rewind-context", event: { event: "context_usage", data: {
+      usage: { tokens: 12, source: "estimated" },
+    } } },
+  ]);
+  assertEquals(projection.workerMetadata?.contextTokens, 12);
+  assertEquals(projection.workerMetadata?.contextSource, "estimated");
 });
 
 Deno.test("large paste segments project compact artifact metadata", () => {
diff --git a/web/workspace/src/lib/workspace/console/model.ts b/web/workspace/src/lib/workspace/console/model.ts
index 2cbadce14..26e2772ce 100644
--- a/web/workspace/src/lib/workspace/console/model.ts
+++ b/web/workspace/src/lib/workspace/console/model.ts
@@ -3,6 +3,7 @@ import type {
   CommandEvent,
   CommandSnapshot,
   CommandStreamSlice,
+  ContextUsage,
   Event as ProtocolEvent,
   Greeting,
   InFlightBlock,
@@ -256,6 +257,20 @@ function metadataWithUsage(
   };
 }
 
+function metadataWithContextUsage(
+  metadata: ConsoleWorkerMetadata | null,
+  usage: ContextUsage | null | undefined,
+): ConsoleWorkerMetadata {
+  const tokens = safeTokenCount(usage?.tokens);
+  return {
+    model: metadata?.model ?? null,
+    reasoning: metadata?.reasoning ?? null,
+    contextWindow: metadata?.contextWindow ?? null,
+    contextTokens: tokens,
+    contextSource: tokens === null ? null : usage?.source ?? null,
+  };
+}
+
 function metadataWithoutContext(
   metadata: ConsoleWorkerMetadata | null,
 ): ConsoleWorkerMetadata | null {
@@ -1127,6 +1142,12 @@ export function applyProtocolEvent(
         event.data.input_tokens,
       );
       break;
+    case "context_usage":
+      next.workerMetadata = metadataWithContextUsage(
+        next.workerMetadata,
+        event.data.usage,
+      );
+      break;
     case "error":
       if (hasDurableRunFailure(next, event.data.message)) break;
       next.lines.push(
diff --git a/web/workspace/src/lib/workspace/console/run-status.test.ts b/web/workspace/src/lib/workspace/console/run-status.test.ts
index 5ec81c96a..29de10947 100644
--- a/web/workspace/src/lib/workspace/console/run-status.test.ts
+++ b/web/workspace/src/lib/workspace/console/run-status.test.ts
@@ -58,6 +58,10 @@ Deno.test("worker metadata formats effort, budget, estimate, and unknown safely"
   );
   assertEquals(
     formatReasoning({ kind: "budget_tokens", budget_tokens: -1 }),
+    "dynamic token budget",
+  );
+  assertEquals(
+    formatReasoning({ kind: "budget_tokens", budget_tokens: -2 }),
     "reasoning unavailable",
   );
   assertEquals(formatContextSummary(null), "Context unavailable");
diff --git a/web/workspace/src/lib/workspace/console/worker-metadata.ts b/web/workspace/src/lib/workspace/console/worker-metadata.ts
index 7f534387c..4927c0b71 100644
--- a/web/workspace/src/lib/workspace/console/worker-metadata.ts
+++ b/web/workspace/src/lib/workspace/console/worker-metadata.ts
@@ -8,10 +8,13 @@ export function formatReasoning(reasoning: ReasoningConfig | null): string {
     const effort = reasoning.effort.trim();
     return effort.length > 0 ? effort : "reasoning unavailable";
   }
-  if (
-    !Number.isSafeInteger(reasoning.budget_tokens) ||
-    reasoning.budget_tokens <= 0
-  ) {
+  if (!Number.isSafeInteger(reasoning.budget_tokens)) {
+    return "reasoning unavailable";
+  }
+  if (reasoning.budget_tokens === -1) {
+    return "dynamic token budget";
+  }
+  if (reasoning.budget_tokens <= 0) {
     return "reasoning unavailable";
   }
   return `${formatRunTokens(reasoning.budget_tokens)} token budget`;