fix: wire DelegateManager into /stopall to cancel async delegations

DelegateAsync creates detached contexts (context.Background()) and runs
outside the scheduler, so /stopall's CancelSession() couldn't reach them.
Now /stopall also calls DelegateManager.CancelForOrigin() to cancel
active delegate tasks matching the origin channel+chatID.

Also silences context.Canceled errors in subagent/delegate announce
handlers to avoid sending spurious error messages after cancellation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

cmd/gateway.go

@@ -614,6 +614,7 @@ func runGateway() {
 	// Declared here so it can be passed to registerAllMethods → AgentsMethods
 	// for immediate cache invalidation on agents.files.set.
 	var contextFileInterceptor *tools.ContextFileInterceptor
+	var delegateMgr *tools.DelegateManager
 
 	// Managed mode: set agent store for tools_invoke context injection + wire extras
 	if managedStores != nil && managedStores.Agents != nil {
@@ -629,7 +630,7 @@ func runGateway() {
 			}
 		}
 
-		contextFileInterceptor = wireManagedExtras(managedStores, agentRouter, providerRegistry, msgBus, sessStore, toolsReg, toolPE, skillsLoader, hasMemory, traceCollector, workspace, cfg.Gateway.InjectionAction, cfg, sandboxMgr, dynamicLoader)
+		contextFileInterceptor, delegateMgr = wireManagedExtras(managedStores, agentRouter, providerRegistry, msgBus, sessStore, toolsReg, toolPE, skillsLoader, hasMemory, traceCollector, workspace, cfg.Gateway.InjectionAction, cfg, sandboxMgr, dynamicLoader)
 		agentsH, skillsH, tracesH, mcpH, customToolsH, channelInstancesH, providersH, delegationsH, builtinToolsH := wireManagedHTTP(managedStores, cfg.Gateway.Token, msgBus, toolsReg, providerRegistry, permPE.IsOwner)
 		if agentsH != nil {
 			server.SetAgentsHandler(agentsH)
@@ -959,7 +960,7 @@ func runGateway() {
 		webFetchTool.UpdatePolicy(updatedCfg.Tools.WebFetch.Policy, updatedCfg.Tools.WebFetch.AllowedDomains, updatedCfg.Tools.WebFetch.BlockedDomains)
 	})
 
-	go consumeInboundMessages(ctx, msgBus, agentRouter, cfg, sched, channelMgr, consumerTeamStore, quotaChecker)
+	go consumeInboundMessages(ctx, msgBus, agentRouter, cfg, sched, channelMgr, consumerTeamStore, quotaChecker, delegateMgr)
 
 	go func() {
 		sig := <-sigCh

cmd/gateway_consumer.go

@@ -17,6 +17,7 @@ import (
 	"github.com/nextlevelbuilder/goclaw/internal/scheduler"
 	"github.com/nextlevelbuilder/goclaw/internal/sessions"
 	"github.com/nextlevelbuilder/goclaw/internal/store"
+	"github.com/nextlevelbuilder/goclaw/internal/tools"
 )
 
 // makeSchedulerRunFunc creates the RunFunc for the scheduler.
@@ -41,7 +42,7 @@ func makeSchedulerRunFunc(agents *agent.Router, cfg *config.Config) scheduler.Ru
 // and routes them through the scheduler/agent loop, then publishes the response back.
 // Also handles subagent announcements: routes them through the parent agent's session
 // (matching TS subagent-announce.ts pattern) so the agent can reformulate for the user.
-func consumeInboundMessages(ctx context.Context, msgBus *bus.MessageBus, agents *agent.Router, cfg *config.Config, sched *scheduler.Scheduler, channelMgr *channels.Manager, teamStore store.TeamStore, quotaChecker *channels.QuotaChecker) {
+func consumeInboundMessages(ctx context.Context, msgBus *bus.MessageBus, agents *agent.Router, cfg *config.Config, sched *scheduler.Scheduler, channelMgr *channels.Manager, teamStore store.TeamStore, quotaChecker *channels.QuotaChecker, delegateMgr *tools.DelegateManager) {
 	slog.Info("inbound message consumer started")
 
 	// Inbound message deduplication (matching TS src/infra/dedupe.ts + inbound-dedupe.ts).
@@ -412,6 +413,10 @@ func consumeInboundMessages(ctx context.Context, msgBus *bus.MessageBus, agents
 			go func(origCh, chatID, senderID, label string, meta map[string]string) {
 				outcome := <-outCh
 				if outcome.Err != nil {
+					if errors.Is(outcome.Err, context.Canceled) {
+						slog.Info("subagent announce: run cancelled", "subagent", senderID)
+						return
+					}
 					slog.Error("subagent announce: agent run failed", "error", outcome.Err)
 					msgBus.PublishOutbound(bus.OutboundMessage{
 						Channel:  origCh,
@@ -519,6 +524,10 @@ func consumeInboundMessages(ctx context.Context, msgBus *bus.MessageBus, agents
 			go func(origCh, chatID, senderID string, meta map[string]string) {
 				outcome := <-outCh
 				if outcome.Err != nil {
+					if errors.Is(outcome.Err, context.Canceled) {
+						slog.Info("delegate announce: run cancelled", "delegation", senderID)
+						return
+					}
 					slog.Error("delegate announce: agent run failed", "error", outcome.Err)
 					msgBus.PublishOutbound(bus.OutboundMessage{
 						Channel:  origCh,
@@ -719,6 +728,13 @@ func consumeInboundMessages(ctx context.Context, msgBus *bus.MessageBus, agents
 			var cancelled bool
 			if cmd == "stopall" {
 				cancelled = sched.CancelSession(sessionKey)
+				// Also cancel async delegations for this chat (they bypass the scheduler)
+				if delegateMgr != nil {
+					dc := delegateMgr.CancelForOrigin(msg.Channel, msg.ChatID)
+					if dc > 0 {
+						cancelled = true
+					}
+				}
 				slog.Info("inbound: /stopall command", "session", sessionKey, "cancelled", cancelled)
 			} else {
 				cancelled = sched.CancelOneSession(sessionKey)

cmd/gateway_managed.go

@@ -43,9 +43,10 @@ func wireManagedExtras(
 	appCfg *config.Config,
 	sandboxMgr sandbox.Manager,
 	dynamicLoader *tools.DynamicToolLoader,
-) *tools.ContextFileInterceptor {
+) (*tools.ContextFileInterceptor, *tools.DelegateManager) {
 	// 1. Context file interceptor (created before resolver so callbacks can reference it)
 	var contextFileInterceptor *tools.ContextFileInterceptor
+	var delegateMgr *tools.DelegateManager
 	if stores.Agents != nil {
 		contextFileInterceptor = tools.NewContextFileInterceptor(stores.Agents, workspace)
 	}
@@ -323,7 +324,7 @@ func wireManagedExtras(
 			}
 			return dr, nil
 		}
-		delegateMgr := tools.NewDelegateManager(runAgentFn, stores.AgentLinks, stores.Agents, msgBus)
+		delegateMgr = tools.NewDelegateManager(runAgentFn, stores.AgentLinks, stores.Agents, msgBus)
 		if stores.Teams != nil {
 			delegateMgr.SetTeamStore(stores.Teams)
 		}
@@ -435,7 +436,7 @@ func wireManagedExtras(
 	}
 
 	slog.Info("managed mode: resolver + interceptors + cache subscribers wired")
-	return contextFileInterceptor
+	return contextFileInterceptor, delegateMgr
 }
 
 // wireManagedHTTP creates managed-mode HTTP handlers (agents + skills + traces + MCP + custom tools + channel instances + providers + delegations + builtin tools).