From 9a350eae755fb993c8c680ed60e0509405fb57c0 Mon Sep 17 00:00:00 2001 From: viettranx Date: Tue, 3 Mar 2026 18:15:49 +0700 Subject: [PATCH] fix(delegation): clear senderID in sync delegation context Sync delegations inherited the caller's senderID, causing the delegate agent to check group writer permissions against its own (empty) writer list instead of bypassing like async delegations do. This resulted in "permission denied: only file writers can modify files" errors when delegate agents tried to write files. Fix: clear senderID from the sync delegation context so it behaves consistently with async delegations (context.Background has no senderID). All 4 downstream usages of SenderIDFromContext are group-writer-related and correctly bypass when senderID is empty. Co-Authored-By: Claude Opus 4.6 --- internal/tools/delegate.go | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/internal/tools/delegate.go b/internal/tools/delegate.go index 6f5f647d..3347b3eb 100644 --- a/internal/tools/delegate.go +++ b/internal/tools/delegate.go @@ -184,10 +184,13 @@ func (dm *DelegateManager) Delegate(ctx context.Context, opts DelegateOpts) (*De dm.emitEvent("delegation.started", task) slog.Info("delegation started", "id", task.ID, "target", opts.TargetAgentKey, "mode", "sync") - // Propagate parent trace ID so the delegate trace links back - delegateCtx := ctx + // Propagate parent trace ID so the delegate trace links back. + // Clear senderID — delegations are system-initiated, the delegate agent + // should not inherit the caller's group writer permissions (the delegate + // agent has its own writer list, and would incorrectly deny writes). + delegateCtx := store.WithSenderID(ctx, "") if parentTraceID := tracing.TraceIDFromContext(ctx); parentTraceID != uuid.Nil { - delegateCtx = tracing.WithDelegateParentTraceID(ctx, parentTraceID) + delegateCtx = tracing.WithDelegateParentTraceID(delegateCtx, parentTraceID) } startTime := time.Now()