feat(TASK-049): add escalation.raised/answered, session.resumed, and agent.interrupted hook events

- escalation.raised fires in the child ctx after queue submit; escalation.answered
  fires in the parent ctx from the taken request, so both agree on origin envs
- escalation.* resolves global hooks ungated: the per-agent global_hooks whitelist
  never applies to these root-level events
- session.resumed fires on the use_session resume leg, inverse of session.started
- agent.interrupted replaces agent.completed/failed when the abort signal was
  ctrl-c'd: top-level bracket (now abort-aware), spawned-subagent result arm
  (agent__cancel / REPL ctrl-c), and graph agent nodes via the session signal;
  exit_agent and the shell-exit path stay non-interrupted by passing no signal
- document the deliberate non-fire paths (direct prompts, escalation timeout and
  parent-drop, graph approval nodes)

src/config/request_context.rs

@@ -4741,6 +4741,8 @@ impl RequestContext {
         self.init_agent_session_variables(new_session)?;
         if created_new_session {
             hooks::fire(HookEvent::SessionStarted, self, &[], None);
+        } else {
+            hooks::fire(HookEvent::SessionResumed, self, &[], None);
         }
         Ok(())
     }
@@ -4909,7 +4911,10 @@ impl RequestContext {
 
         // Interactive switch-away closes the top-level agent bracket while
         // the agent is still attached, so agent-scoped hooks resolve.
-        self.top_level_agent_finished(None);
+        // No abort signal on purpose: switching away is a deliberate exit,
+        // never an interruption, even though cancel_recursive tears the
+        // agent's children down just below.
+        self.top_level_agent_finished(None, None);
         if self.agent.take().is_some() {
             if let Some(supervisor) = self.supervisor.clone() {
                 supervisor.read().cancel_recursive();
@@ -4957,11 +4962,27 @@ impl RequestContext {
         );
     }
 
-    pub fn top_level_agent_finished(&mut self, error: Option<&Error>) {
+    pub fn top_level_agent_finished(
+        &mut self,
+        error: Option<&Error>,
+        abort_signal: Option<&AbortSignal>,
+    ) {
         let Some(id) = self.top_level_agent_id.take() else {
             return;
         };
 
+        // The abort signal, never the error text, decides interrupted: a
+        // ctrl-c'd run is not a failure, so no error env rides along.
+        if abort_signal.is_some_and(|signal| signal.aborted_ctrlc()) {
+            hooks::fire(
+                HookEvent::AgentInterrupted,
+                self,
+                &[("COYOTE_AGENT_ID", id)],
+                None,
+            );
+            return;
+        }
+
         match error {
             None => hooks::fire(
                 HookEvent::AgentCompleted,
@@ -8340,7 +8361,12 @@ mod tests {
         let agent_dir = paths::agent_data_dir(agent_name);
         create_dir_all(&agent_dir).unwrap();
         let mut config = format!("name: {agent_name}\ninstructions: hi\nhooks:\n");
-        for event in ["agent.started", "agent.completed", "agent.failed"] {
+        for event in [
+            "agent.started",
+            "agent.completed",
+            "agent.interrupted",
+            "agent.failed",
+        ] {
             config.push_str(&format!(
                 "  {event}:\n    - name: {marker}-{event}\n      command: 'true'\n"
             ));
@@ -8360,7 +8386,7 @@ mod tests {
 
     #[test]
     #[serial]
-    fn use_session_fires_session_started_for_new_sessions_only() {
+    fn use_session_discriminates_session_started_from_session_resumed() {
         let _guard = TestConfigDirGuard::new();
         let sessions_dir = paths::local_dir("sessions");
         create_dir_all(&sessions_dir).unwrap();
@@ -8368,13 +8394,16 @@ mod tests {
         let marker = "sess-started-q8n";
 
         let mut ctx = create_test_ctx();
-        ctx.update_app_config(|app| app.hooks = hooks_map_of(&["session.started"], marker));
+        ctx.update_app_config(|app| {
+            app.hooks = hooks_map_of(&["session.started", "session.resumed"], marker)
+        });
         let app = ctx.app.config.clone();
         let abort = utils::create_abort_signal();
         run_async(ctx.use_session(&app, Some("hook-fresh"), abort.clone())).unwrap();
 
         let captures = marker_captures(marker);
         assert_eq!(captures.len(), 1, "a new session fires exactly one event");
+        assert_eq!(captures[0].hook_name, format!("{marker}-session.started"));
         assert_eq!(
             captures[0]
                 .envs
@@ -8383,16 +8412,29 @@ mod tests {
             Some("hook-fresh")
         );
 
-        // Resuming a persisted session fires nothing.
+        // Resuming a persisted session fires session.resumed, never
+        // session.started.
         write_paused_todo_session(&ctx, "hook-resume");
         let mut resumed_ctx = create_test_ctx();
-        resumed_ctx.update_app_config(|app| app.hooks = hooks_map_of(&["session.started"], marker));
+        resumed_ctx.update_app_config(|app| {
+            app.hooks = hooks_map_of(&["session.started", "session.resumed"], marker)
+        });
         let resumed_app = resumed_ctx.app.config.clone();
         run_async(resumed_ctx.use_session(&resumed_app, Some("hook-resume"), abort)).unwrap();
+        let captures = marker_captures(marker);
+        let started: Vec<_> = captures
+            .iter()
+            .filter(|capture| capture.hook_name == format!("{marker}-session.started"))
+            .collect();
+        let resumed: Vec<_> = captures
+            .iter()
+            .filter(|capture| capture.hook_name == format!("{marker}-session.resumed"))
+            .collect();
+        assert_eq!(started.len(), 1, "resume must not fire session.started");
+        assert_eq!(resumed.len(), 1, "resume fires exactly one session.resumed");
         assert_eq!(
-            marker_captures(marker).len(),
-            1,
-            "resume must not fire session.started"
+            resumed[0].envs.get("COYOTE_SESSION_ID").map(String::as_str),
+            Some("hook-resume")
         );
     }
 
@@ -8469,8 +8511,8 @@ mod tests {
         ctx.top_level_agent_started();
         // Per agent RUN, never per message: re-entering while open is a no-op.
         ctx.top_level_agent_started();
-        ctx.top_level_agent_finished(None);
-        ctx.top_level_agent_finished(None);
+        ctx.top_level_agent_finished(None, None);
+        ctx.top_level_agent_finished(None, None);
 
         let captures = marker_captures(marker);
         let started: Vec<_> = captures
@@ -8519,7 +8561,7 @@ mod tests {
 
         ctx.top_level_agent_started();
         let err = anyhow!("dispatch exploded");
-        ctx.top_level_agent_finished(Some(&err));
+        ctx.top_level_agent_finished(Some(&err), None);
 
         let captures = marker_captures(marker);
         let failed: Vec<_> = captures
@@ -8539,6 +8581,44 @@ mod tests {
         assert!(failed[0].envs.contains_key("COYOTE_AGENT_ID"));
     }
 
+    #[test]
+    #[serial]
+    fn top_level_agent_ctrlc_fires_agent_interrupted_not_failed() {
+        let _guard = TestConfigDirGuard::new();
+        let _sink = test_sink::install();
+        let marker = "agent-top-int-r6t";
+        let agent_name = unique_name("hook_agent");
+        seed_agent_with_hooks(&agent_name, marker);
+
+        let mut ctx = create_test_ctx();
+        let app = ctx.app.config.clone();
+        let abort = utils::create_abort_signal();
+        run_async(ctx.use_agent(&app, &agent_name, None, abort.clone())).unwrap();
+
+        ctx.top_level_agent_started();
+        abort.set_ctrlc();
+        // The fired signal, not the error text, decides: even with an error
+        // in hand the bracket reports an interruption.
+        let err = anyhow!("Aborted.");
+        ctx.top_level_agent_finished(Some(&err), Some(&abort));
+
+        let captures = marker_captures(marker);
+        let interrupted: Vec<_> = captures
+            .iter()
+            .filter(|capture| capture.hook_name == format!("{marker}-agent.interrupted"))
+            .collect();
+        assert_eq!(interrupted.len(), 1);
+        assert!(interrupted[0].envs.contains_key("COYOTE_AGENT_ID"));
+        assert!(
+            !interrupted[0].envs.contains_key("COYOTE_AGENT_ERROR"),
+            "an interruption is not a failure and carries no error env"
+        );
+        assert!(captures.iter().all(|capture| {
+            capture.hook_name != format!("{marker}-agent.failed")
+                && capture.hook_name != format!("{marker}-agent.completed")
+        }));
+    }
+
     #[test]
     #[serial]
     fn top_level_agent_helpers_noop_without_agent() {
@@ -8556,7 +8636,7 @@ mod tests {
         ctx.role = Some(Role::new("plain", "prompt"));
 
         ctx.top_level_agent_started();
-        ctx.top_level_agent_finished(None);
+        ctx.top_level_agent_finished(None, None);
 
         assert!(
             marker_captures(marker).is_empty(),
@@ -8582,7 +8662,7 @@ mod tests {
 
         ctx.exit_agent(&app).unwrap();
         // A later exit seam (REPL teardown) must not double-fire.
-        ctx.top_level_agent_finished(None);
+        ctx.top_level_agent_finished(None, None);
 
         let captures = marker_captures(marker);
         assert_eq!(

src/function/agents.rs

@@ -997,14 +997,15 @@ fn sync_agent_functions_to_ctx(ctx: &mut RequestContext) -> Result<()> {
     Ok(())
 }
 
-/// Pre-resolved `agent.completed`/`agent.failed` snapshots for a spawned
-/// agent's result arms, captured from the child context before the spawn
-/// task takes ownership of it. Resolving against the child keeps global
-/// hooks gated by the child's own whitelist, the same gate every other
-/// event fired from the child's context goes through.
+/// Pre-resolved `agent.completed`/`agent.interrupted`/`agent.failed`
+/// snapshots for a spawned agent's result arms, captured from the child
+/// context before the spawn task takes ownership of it. Resolving against
+/// the child keeps global hooks gated by the child's own whitelist, the
+/// same gate every other event fired from the child's context goes through.
 struct SpawnResultHooks {
     completed: Vec<ResolvedHook>,
     failed: Vec<ResolvedHook>,
+    interrupted: Vec<ResolvedHook>,
     session_name: Option<String>,
     agent_id: String,
     agent_name: String,
@@ -1015,6 +1016,7 @@ impl SpawnResultHooks {
         Self {
             completed: child_ctx.resolved_hooks(HookEvent::AgentCompleted),
             failed: child_ctx.resolved_hooks(HookEvent::AgentFailed),
+            interrupted: child_ctx.resolved_hooks(HookEvent::AgentInterrupted),
             session_name: child_ctx
                 .session
                 .as_ref()
@@ -1024,14 +1026,20 @@ impl SpawnResultHooks {
         }
     }
 
-    /// Fires `agent.completed`, or `agent.failed` when `error` is given.
-    fn fire(self, error: Option<&str>) {
+    /// Fires `agent.completed`, or — for a failed child — `agent.interrupted`
+    /// when its abort signal was ctrl-c'd (REPL ctrl-c or `agent__cancel`),
+    /// else `agent.failed`. The signal, never the error text, decides:
+    /// cancellation is not a failure, so no error env rides along.
+    fn fire(self, error: Option<&str>, child_abort: &AbortSignal) {
         let mut extras = vec![
             ("COYOTE_AGENT_ID", self.agent_id),
             ("COYOTE_AGENT_NAME", self.agent_name.clone()),
         ];
         let (event, resolved) = match error {
             None => (HookEvent::AgentCompleted, self.completed),
+            Some(_) if child_abort.aborted_ctrlc() => {
+                (HookEvent::AgentInterrupted, self.interrupted)
+            }
             Some(error) => {
                 extras.push(("COYOTE_AGENT_ERROR", error.to_string()));
                 (HookEvent::AgentFailed, self.failed)
@@ -1216,6 +1224,7 @@ async fn handle_spawn(ctx: &mut RequestContext, args: &Value) -> Result<Value> {
     let spawn_agent_id = agent_id.clone();
     let spawn_agent_name = agent_name.clone();
     let spawn_abort = child_abort.clone();
+    let hook_abort = child_abort.clone();
     let spawn_notifications = Arc::clone(&ctx.notification_queue);
     let child_supervisor = child_ctx.supervisor.clone();
 
@@ -1238,8 +1247,8 @@ async fn handle_spawn(ctx: &mut RequestContext, args: &Value) -> Result<Value> {
         };
         let success = agent_result.exit_status == AgentExitStatus::Completed;
         match &agent_result.exit_status {
-            AgentExitStatus::Completed => result_hooks.fire(None),
-            AgentExitStatus::Failed(e) => result_hooks.fire(Some(e)),
+            AgentExitStatus::Completed => result_hooks.fire(None, &hook_abort),
+            AgentExitStatus::Failed(e) => result_hooks.fire(Some(e), &hook_abort),
         }
         spawn_notifications.push(agent_notification(
             &agent_result.id,
@@ -1771,6 +1780,21 @@ fn handle_reply_escalation(ctx: &mut RequestContext, args: &Value) -> Result<Val
             let from_agent = request.from_agent_name.clone();
             let question = request.question.clone();
             let _ = request.reply_tx.send(reply.to_string());
+            // Origin envs come from the taken request, not this (replying)
+            // context, so `escalation.answered` and `escalation.raised`
+            // describe the same agent for one escalation id.
+            hooks::fire(
+                HookEvent::EscalationAnswered,
+                ctx,
+                &[
+                    ("COYOTE_ESCALATION_ID", escalation_id.to_string()),
+                    ("COYOTE_ESCALATION_FROM_AGENT_ID", request.from_agent_id),
+                    ("COYOTE_ESCALATION_FROM_AGENT_NAME", from_agent.clone()),
+                    ("COYOTE_ESCALATION_QUESTION", question.clone()),
+                    ("COYOTE_ESCALATION_REPLY", reply.to_string()),
+                ],
+                None,
+            );
             Ok(json!({
                 "status": "ok",
                 "message": format!("Reply sent to agent '{from_agent}' for escalation '{escalation_id}'"),
@@ -2251,6 +2275,9 @@ mod tests {
                  \x20 agent.completed:\n\
                  \x20   - name: {marker}_completed\n\
                  \x20     command: \"true\"\n\
+                 \x20 agent.interrupted:\n\
+                 \x20   - name: {marker}_interrupted\n\
+                 \x20     command: \"true\"\n\
                  \x20 agent.failed:\n\
                  \x20   - name: {marker}_failed\n\
                  \x20     command: \"true\"\n\
@@ -2346,6 +2373,54 @@ mod tests {
         assert!(hook_captures_named("t037_spawn_fail_completed").is_empty());
     }
 
+    #[test]
+    #[serial]
+    fn cancelled_spawned_agent_fires_interrupted_not_failed() {
+        let _guard = TestConfigDirGuard::new();
+        let _sink = hooks::test_sink::install();
+        let agent_name = unique_agent_name("test_hook_spawn_cancel");
+        write_graph_agent_with_hooks(&agent_name, "t049_spawn_cancel", true);
+
+        let id = run_async(async {
+            let mut ctx = ctx_with_supervisor(4, 3);
+            let spawned = handle_spawn(&mut ctx, &json!({"agent": agent_name, "prompt": "hi"}))
+                .await
+                .unwrap();
+            assert_eq!(spawned["status"], "ok", "{spawned}");
+            let id = spawned["id"].as_str().unwrap().to_string();
+            let handle = ctx
+                .supervisor
+                .as_ref()
+                .unwrap()
+                .write()
+                .take(&id)
+                .expect("spawned agent must be registered");
+            // The `agent__cancel` signal, fired before the spawn task runs:
+            // on this current-thread runtime the task only progresses once
+            // awaited, so its failure arm observes the ctrl-c deterministically.
+            handle.abort_signal.set_ctrlc();
+            handle
+                .join_handle
+                .await
+                .expect("spawn task must not panic")
+                .expect("spawn task must return an AgentResult");
+            id
+        });
+
+        let interrupted = hook_captures_named("t049_spawn_cancel_interrupted");
+        assert_eq!(interrupted.len(), 1, "{interrupted:?}");
+        assert_eq!(interrupted[0].envs["COYOTE_EVENT"], "agent.interrupted");
+        assert_eq!(interrupted[0].envs["COYOTE_AGENT_ID"], id);
+        assert_eq!(interrupted[0].envs["COYOTE_AGENT_NAME"], agent_name);
+        assert!(
+            !interrupted[0].envs.contains_key("COYOTE_AGENT_ERROR"),
+            "an interruption is not a failure and carries no error env"
+        );
+
+        assert!(hook_captures_named("t049_spawn_cancel_failed").is_empty());
+        assert!(hook_captures_named("t049_spawn_cancel_completed").is_empty());
+    }
+
     #[test]
     fn agent_event_base_envs_carry_optional_names_only_when_present() {
         let envs = hooks::base_envs_parts(HookEvent::AgentCompleted, None, None);

src/function/user_interaction.rs

@@ -1,5 +1,6 @@
 use super::{FunctionDeclaration, JsonSchema};
 use crate::config::RequestContext;
+use crate::hooks::{self, HookEvent};
 use crate::supervisor::escalation::{EscalationRequest, new_escalation_id};
 use crate::utils::{ACP_SERVER, HEADLESS, queue_acp_permission};
 
@@ -179,6 +180,8 @@ fn handle_headless(action: &str, args: &Value) -> Value {
     })
 }
 
+// The root agent prompting its own user is a direct interaction, not an
+// escalation: no escalation event fires on this path.
 fn handle_direct(action: &str, args: &Value) -> Result<Value> {
     match action {
         "select" => handle_direct_ask(args),
@@ -278,22 +281,37 @@ async fn handle_escalated(ctx: &RequestContext, action: &str, args: &Value) -> R
     let escalation_id = new_escalation_id();
     let (tx, rx) = oneshot::channel();
 
+    let question = format!("[{action}] {question}");
     let request = EscalationRequest {
         id: escalation_id.clone(),
-        from_agent_id,
+        from_agent_id: from_agent_id.clone(),
         from_agent_name: from_agent_name.clone(),
-        question: format!("[{action}] {question}"),
+        question: question.clone(),
         options,
         reply_tx: tx,
     };
 
     root_queue.submit(request);
 
+    hooks::fire(
+        HookEvent::EscalationRaised,
+        ctx,
+        &[
+            ("COYOTE_ESCALATION_ID", escalation_id),
+            ("COYOTE_ESCALATION_FROM_AGENT_ID", from_agent_id),
+            ("COYOTE_ESCALATION_FROM_AGENT_NAME", from_agent_name),
+            ("COYOTE_ESCALATION_QUESTION", question),
+        ],
+        None,
+    );
+
     await_escalation_reply(rx, timeout_secs).await
 }
 
 /// Waits for the parent's reply. `timeout_secs == 0` waits indefinitely; a
 /// dropped sender (the parent cancelled the request) resolves either way.
+/// Both fallback arms resolve without touching the escalation queue, so
+/// neither fires an escalation event: the request was never answered.
 async fn await_escalation_reply(rx: oneshot::Receiver<String>, timeout_secs: u64) -> Result<Value> {
     let reply = if timeout_secs == 0 {
         rx.await
@@ -346,8 +364,14 @@ fn parse_options(args: &Value) -> Result<Vec<String>> {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use crate::config::{AppConfig, AppState, WorkingMode};
+    use crate::function::agents::handle_agent_tool;
+    use crate::hooks::{HookDef, HooksMap, test_sink};
+    use crate::supervisor::escalation::EscalationQueue;
+    use serial_test::serial;
     use std::fs;
     use std::path::{Path, PathBuf};
+    use std::sync::Arc;
 
     #[test]
     fn headless_select_returns_structured_json() {
@@ -374,6 +398,112 @@ mod tests {
         assert_eq!(DEFAULT_ESCALATION_TIMEOUT_SECS, 0);
     }
 
+    fn ctx_with_escalation_hooks(marker: &str) -> RequestContext {
+        let mut hooks = HooksMap::default();
+        for event in ["escalation.raised", "escalation.answered"] {
+            hooks.insert(
+                event.to_string(),
+                vec![HookDef {
+                    name: format!("{marker}-{event}"),
+                    command: "true".to_string(),
+                }],
+            );
+        }
+        let mut app = AppState::test_default();
+        app.config = Arc::new(AppConfig {
+            hooks,
+            ..Default::default()
+        });
+        RequestContext::new(Arc::new(app), WorkingMode::Cmd)
+    }
+
+    fn marker_captures(marker: &str, event: &str) -> Vec<test_sink::Capture> {
+        test_sink::snapshot()
+            .into_iter()
+            .filter(|capture| capture.hook_name == format!("{marker}-{event}"))
+            .collect()
+    }
+
+    /// `escalation.raised` (child seam) and `escalation.answered` (parent
+    /// seam) must describe the same origin agent for one escalation id: the
+    /// answered envs come from the taken queue request, never from the
+    /// replying context.
+    #[tokio::test]
+    #[serial]
+    async fn escalation_raised_and_answered_agree_on_origin_envs() {
+        let _sink = test_sink::install();
+        let marker = "esc-parity-k4w";
+
+        let queue = Arc::new(EscalationQueue::new());
+        let mut child_ctx = ctx_with_escalation_hooks(marker);
+        child_ctx.escalation_queue = Some(Arc::clone(&queue));
+        child_ctx.self_agent_id = Some("esc-child-1".to_string());
+        let mut parent_ctx = ctx_with_escalation_hooks(marker);
+        parent_ctx.escalation_queue = Some(Arc::clone(&queue));
+
+        let raise_args = json!({ "question": "which db?" });
+        let raise = handle_escalated(&child_ctx, "input", &raise_args);
+        let reply = async {
+            // Bounded poll: on the current-thread runtime the raise future
+            // submits before its first await, so this resolves immediately.
+            let mut escalation_id = None;
+            for _ in 0..1000 {
+                if let Some(entry) = queue.pending_summary().first() {
+                    escalation_id = entry["escalation_id"].as_str().map(str::to_string);
+                    break;
+                }
+                tokio::task::yield_now().await;
+            }
+            let escalation_id = escalation_id.expect("escalation must reach the queue");
+            handle_agent_tool(
+                &mut parent_ctx,
+                "agent__reply_escalation",
+                &json!({ "escalation_id": escalation_id, "reply": "postgres" }),
+            )
+            .await
+            .unwrap()
+        };
+        let (raised_result, replied) = tokio::join!(raise, reply);
+        assert_eq!(raised_result.unwrap()["answer"], "postgres");
+        assert_eq!(replied["status"], "ok");
+
+        let raised = marker_captures(marker, "escalation.raised");
+        let answered = marker_captures(marker, "escalation.answered");
+        assert_eq!(raised.len(), 1, "{raised:?}");
+        assert_eq!(answered.len(), 1, "{answered:?}");
+        for key in [
+            "COYOTE_ESCALATION_ID",
+            "COYOTE_ESCALATION_FROM_AGENT_ID",
+            "COYOTE_ESCALATION_FROM_AGENT_NAME",
+            "COYOTE_ESCALATION_QUESTION",
+        ] {
+            assert!(raised[0].envs.contains_key(key), "{key} missing on raised");
+            assert_eq!(raised[0].envs.get(key), answered[0].envs.get(key), "{key}");
+        }
+        assert_eq!(
+            raised[0]
+                .envs
+                .get("COYOTE_ESCALATION_FROM_AGENT_ID")
+                .map(String::as_str),
+            Some("esc-child-1")
+        );
+        assert_eq!(
+            raised[0]
+                .envs
+                .get("COYOTE_ESCALATION_QUESTION")
+                .map(String::as_str),
+            Some("[input] which db?")
+        );
+        assert_eq!(
+            answered[0]
+                .envs
+                .get("COYOTE_ESCALATION_REPLY")
+                .map(String::as_str),
+            Some("postgres")
+        );
+        assert!(!raised[0].envs.contains_key("COYOTE_ESCALATION_REPLY"));
+    }
+
     #[tokio::test(start_paused = true)]
     async fn zero_timeout_waits_indefinitely_for_the_reply() {
         let (tx, rx) = oneshot::channel();

src/graph/agent.rs

@@ -50,16 +50,36 @@ impl AgentNodeExecutor {
         )
         .await;
         if let Err(e) = &result {
-            hooks::fire(
-                HookEvent::AgentFailed,
-                parent_ctx,
-                &[
-                    ("COYOTE_AGENT_ID", agent_hook_id),
-                    ("COYOTE_AGENT_NAME", node.agent.clone()),
-                    ("COYOTE_AGENT_ERROR", format!("{e:#}")),
-                ],
-                None,
-            );
+            // The child's own abort signal dies inside `run`; the session
+            // signal is what a user interrupt fires (the executor bridges it
+            // onto the graph abort), so it is the only honest
+            // interrupted-vs-failed discriminator at this seam.
+            if parent_ctx
+                .session_abort
+                .as_ref()
+                .is_some_and(|signal| signal.aborted_ctrlc())
+            {
+                hooks::fire(
+                    HookEvent::AgentInterrupted,
+                    parent_ctx,
+                    &[
+                        ("COYOTE_AGENT_ID", agent_hook_id),
+                        ("COYOTE_AGENT_NAME", node.agent.clone()),
+                    ],
+                    None,
+                );
+            } else {
+                hooks::fire(
+                    HookEvent::AgentFailed,
+                    parent_ctx,
+                    &[
+                        ("COYOTE_AGENT_ID", agent_hook_id),
+                        ("COYOTE_AGENT_NAME", node.agent.clone()),
+                        ("COYOTE_AGENT_ERROR", format!("{e:#}")),
+                    ],
+                    None,
+                );
+            }
         }
         outcome_from(node_id, node, state_manager, result)
     }
@@ -338,10 +358,12 @@ fn apply_state_updates(node: &AgentNode, state_manager: &mut StateManager, outpu
 mod tests {
     use super::super::types::AgentNode;
     use super::*;
-    use crate::config::{AppState, WorkingMode, default_max_agent_depth};
+    use crate::config::{AppConfig, AppState, WorkingMode, default_max_agent_depth};
+    use crate::hooks::{HookDef, HooksMap, test_sink};
     use crate::supervisor::mailbox::{Inbox, PeerRegistry, graph_agent_id};
     use crate::testing::{install_log_collector, warn_snapshot};
     use serde_json::json;
+    use serial_test::serial;
     use std::collections::HashMap;
     use std::sync::Arc;
 
@@ -416,6 +438,64 @@ mod tests {
         RequestContext::new(Arc::new(AppState::test_default()), WorkingMode::Cmd)
     }
 
+    fn ctx_with_agent_hooks(marker: &str) -> RequestContext {
+        let mut hooks = HooksMap::default();
+        for event in ["agent.interrupted", "agent.failed"] {
+            hooks.insert(
+                event.to_string(),
+                vec![HookDef {
+                    name: format!("{marker}-{event}"),
+                    command: "true".to_string(),
+                }],
+            );
+        }
+        let mut app = AppState::test_default();
+        app.config = Arc::new(AppConfig {
+            hooks,
+            ..Default::default()
+        });
+        RequestContext::new(Arc::new(app), WorkingMode::Cmd)
+    }
+
+    /// A fired session signal (the user's interrupt) reclassifies a failed
+    /// agent node: `agent.interrupted` fires instead of `agent.failed`.
+    #[tokio::test]
+    #[serial]
+    async fn execute_failure_with_fired_session_abort_fires_agent_interrupted() {
+        let _sink = test_sink::install();
+        let marker = "graph-agent-int-z2f";
+        let mut ctx = ctx_with_agent_hooks(marker);
+        // Past max depth the node fails before touching agent config on disk.
+        ctx.current_depth = default_max_agent_depth();
+        let session = create_abort_signal();
+        session.set_ctrlc();
+        ctx.session_abort = Some(session);
+        let node = node_with("hi", None);
+        let mut state = manager_with(&[]);
+
+        AgentNodeExecutor::execute("test_node", &node, &mut state, &mut ctx, false)
+            .await
+            .expect_err("agent past max depth should fail");
+
+        let captures: Vec<_> = test_sink::snapshot()
+            .into_iter()
+            .filter(|capture| capture.hook_name.starts_with(marker))
+            .collect();
+        assert_eq!(captures.len(), 1, "{captures:?}");
+        assert_eq!(captures[0].hook_name, format!("{marker}-agent.interrupted"));
+        assert_eq!(
+            captures[0]
+                .envs
+                .get("COYOTE_AGENT_NAME")
+                .map(String::as_str),
+            Some("test_agent")
+        );
+        assert!(
+            !captures[0].envs.contains_key("COYOTE_AGENT_ERROR"),
+            "an interruption is not a failure and carries no error env"
+        );
+    }
+
     fn retryable_node(max_attempts: u32) -> AgentNode {
         let mut node = node_with("hi", None);
         node.max_attempts = max_attempts;

src/graph/user_interaction.rs

@@ -21,6 +21,10 @@ impl ApprovalNodeExecutor {
             .interpolate(&node.question)
             .context("Failed to interpolate approval question")?;
 
+        // No escalation event fires at this seam: a root graph prompts its
+        // user directly (outside the escalation queue), and a child graph's
+        // escalation fires inside `handle_escalated` like any other user__*
+        // call.
         let response = handle_user_tool(
             ctx,
             &format!("{USER_FUNCTION_PREFIX}select"),

src/hooks.rs

@@ -119,6 +119,7 @@ pub enum HookEvent {
     TurnInterrupted,
     TurnFailed,
     SessionStarted,
+    SessionResumed,
     SessionEnded,
     SessionCompressed,
     ToolStarted,
@@ -129,7 +130,10 @@ pub enum HookEvent {
     LlmRequestFailed,
     AgentStarted,
     AgentCompleted,
+    AgentInterrupted,
     AgentFailed,
+    EscalationRaised,
+    EscalationAnswered,
     GraphNodeStarted,
     GraphNodeCompleted,
     GraphNodeFailed,
@@ -146,6 +150,7 @@ impl HookEvent {
             HookEvent::TurnInterrupted => "turn.interrupted",
             HookEvent::TurnFailed => "turn.failed",
             HookEvent::SessionStarted => "session.started",
+            HookEvent::SessionResumed => "session.resumed",
             HookEvent::SessionEnded => "session.ended",
             HookEvent::SessionCompressed => "session.compressed",
             HookEvent::ToolStarted => "tool.started",
@@ -156,7 +161,10 @@ impl HookEvent {
             HookEvent::LlmRequestFailed => "llm.request.failed",
             HookEvent::AgentStarted => "agent.started",
             HookEvent::AgentCompleted => "agent.completed",
+            HookEvent::AgentInterrupted => "agent.interrupted",
             HookEvent::AgentFailed => "agent.failed",
+            HookEvent::EscalationRaised => "escalation.raised",
+            HookEvent::EscalationAnswered => "escalation.answered",
             HookEvent::GraphNodeStarted => "graph.node.started",
             HookEvent::GraphNodeCompleted => "graph.node.completed",
             HookEvent::GraphNodeFailed => "graph.node.failed",
@@ -220,6 +228,17 @@ fn resolve_hooks(
     let event_name = event.as_str();
     let mut resolved = Vec::new();
 
+    // Escalations are a root/user-level concern: the user wires these hooks
+    // to hear about children asking for help, so requiring every agent to
+    // whitelist them through `global_hooks` would silence exactly the events
+    // they were set up for. The per-agent gate never applies here (this also
+    // skips the unknown-entry diagnostics: whitelisting an escalation hook is
+    // harmless and needs no warning).
+    let agent_gate = match event {
+        HookEvent::EscalationRaised | HookEvent::EscalationAnswered => None,
+        _ => agent_gate,
+    };
+
     if let Some(defs) = global_hooks.get(event_name) {
         let cwd = paths::config_dir();
         for def in defs {
@@ -1326,6 +1345,7 @@ mod tests {
             (HookEvent::TurnInterrupted, "turn.interrupted"),
             (HookEvent::TurnFailed, "turn.failed"),
             (HookEvent::SessionStarted, "session.started"),
+            (HookEvent::SessionResumed, "session.resumed"),
             (HookEvent::SessionEnded, "session.ended"),
             (HookEvent::SessionCompressed, "session.compressed"),
             (HookEvent::ToolStarted, "tool.started"),
@@ -1336,7 +1356,10 @@ mod tests {
             (HookEvent::LlmRequestFailed, "llm.request.failed"),
             (HookEvent::AgentStarted, "agent.started"),
             (HookEvent::AgentCompleted, "agent.completed"),
+            (HookEvent::AgentInterrupted, "agent.interrupted"),
             (HookEvent::AgentFailed, "agent.failed"),
+            (HookEvent::EscalationRaised, "escalation.raised"),
+            (HookEvent::EscalationAnswered, "escalation.answered"),
             (HookEvent::GraphNodeStarted, "graph.node.started"),
             (HookEvent::GraphNodeCompleted, "graph.node.completed"),
             (HookEvent::GraphNodeFailed, "graph.node.failed"),
@@ -1376,6 +1399,38 @@ mod tests {
         assert_eq!(names(&resolved), ["own"]);
     }
 
+    #[test]
+    fn escalation_events_bypass_the_agent_whitelist_gate() {
+        let mut global = hooks_map("escalation.raised", &[("watch", "cmd-raised")]);
+        global.extend(hooks_map(
+            "escalation.answered",
+            &[("watch", "cmd-answered")],
+        ));
+        global.extend(hooks_map("tool.started", &[("watch", "cmd-tool")]));
+
+        for event in [HookEvent::EscalationRaised, HookEvent::EscalationAnswered] {
+            let resolved = resolve_hooks(event, &global, Some((&[], "gated-agent")), None, None);
+            assert_eq!(
+                names(&resolved),
+                ["watch"],
+                "{} must resolve without a whitelist entry",
+                event.as_str()
+            );
+        }
+
+        let resolved = resolve_hooks(
+            HookEvent::ToolStarted,
+            &global,
+            Some((&[], "gated-agent")),
+            None,
+            None,
+        );
+        assert!(
+            resolved.is_empty(),
+            "non-escalation events stay behind the whitelist gate"
+        );
+    }
+
     #[test]
     fn whitelist_admits_only_exact_global_entries() {
         let global = hooks_map(

src/main.rs

@@ -587,7 +587,7 @@ async fn run(
             shell_execute(&mut ctx, &SHELL, input, abort_signal.clone()).await
         }
         .await;
-        ctx.top_level_agent_finished(result.as_ref().err());
+        ctx.top_level_agent_finished(result.as_ref().err(), Some(&abort_signal));
         hooks::drain_pending(EXIT_HOOK_DRAIN_TIMEOUT).await;
         return result;
     }
@@ -621,7 +621,7 @@ async fn run(
                 start_directive(&mut ctx, input, cli.code, abort_signal.clone()).await
             }
             .await;
-            ctx.top_level_agent_finished(result.as_ref().err());
+            ctx.top_level_agent_finished(result.as_ref().err(), Some(&abort_signal));
             hooks::drain_pending(EXIT_HOOK_DRAIN_TIMEOUT).await;
             result
         }
@@ -755,7 +755,10 @@ async fn shell_execute(
                     if code == 0 && app.save_shell_history {
                         let _ = append_to_shell_history(&shell.name, &eval_str, code);
                     }
-                    ctx.top_level_agent_finished(None);
+                    // Executing the generated command is a normal exit: no
+                    // abort signal on purpose, this seam can never report an
+                    // interruption.
+                    ctx.top_level_agent_finished(None, None);
                     hooks::drain_pending(EXIT_HOOK_DRAIN_TIMEOUT).await;
                     process::exit(code);
                 }

src/repl/mod.rs

@@ -533,7 +533,7 @@ Type ".help" for additional help.
         let exit_result = self.ctx.write().exit_session();
         self.ctx
             .write()
-            .top_level_agent_finished(exit_result.as_ref().err());
+            .top_level_agent_finished(exit_result.as_ref().err(), Some(&self.abort_signal));
         hooks::drain_pending(EXIT_HOOK_DRAIN_TIMEOUT).await;
         exit_result
     }