diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 00000000..72a1978d
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,36 @@
+version: 2
+updates:
+  - package-ecosystem: gomod
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
+      time: "09:00"
+      timezone: UTC
+    open-pull-requests-limit: 10
+    labels:
+      - "dependencies"
+      - "go"
+      - "hawk"
+    commit-message:
+      prefix: "deps"
+      include: scope
+    groups:
+      production-dependencies:
+        dependency-type: production
+      development-dependencies:
+        dependency-type: development
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
+      time: "09:00"
+      timezone: UTC
+    open-pull-requests-limit: 5
+    labels:
+      - "dependencies"
+      - "github-actions"
+    commit-message:
+      prefix: "ci"
+      include: scope
diff --git a/internal/engine/compact_auto.go b/internal/engine/compact_auto.go
index 41e3c46e..aea5e67f 100644
--- a/internal/engine/compact_auto.go
+++ b/internal/engine/compact_auto.go
@@ -3,7 +3,6 @@ package engine
 import (
 	"context"
 	"errors"
-	"log"
 	"sync"
 	"time"
 
@@ -58,7 +57,7 @@ func (ac *AutoCompactor) ShouldAutoCompact(sess *Session) bool {
 	// Circuit breaker: skip once the breaker is open (too many consecutive
 	// failures) until its cooldown elapses, then re-arm half-open.
 	if !ac.breaker.ShouldAllow(time.Now()).Allow {
-		log.Printf("Auto-compact paused by circuit breaker.")
+		sess.Logger().Info("Auto-compact paused by circuit breaker.")
 		return false
 	}
 
diff --git a/internal/tool/batch_exec.go b/internal/tool/batch_exec.go
index d3c97d8c..f9cc0e75 100644
--- a/internal/tool/batch_exec.go
+++ b/internal/tool/batch_exec.go
@@ -209,7 +209,7 @@ func batchPoll(ctx context.Context, apiKey, batchID string) (string, error) {
 	}
 	var result batchPollResult
 	if err := json.Unmarshal(raw, &result); err != nil {
-		return string(raw), nil // return raw on parse failure
+		return "", fmt.Errorf("batch poll parse: %w", err)
 	}
 	result.BatchID = batchID
 	out, _ := json.MarshalIndent(result, "", "  ")