diff --git a/internal/exec/result.go b/internal/exec/result.go
index 3dc01ee..79be573 100644
--- a/internal/exec/result.go
+++ b/internal/exec/result.go
@@ -20,7 +20,12 @@ type Result struct {
 }
 
 var validStatuses = map[string]bool{"pass": true, "fail": true, "error": true}
-var validPhases = map[string]bool{"red": true, "green": true, "refactor": true}
+var validPhases = map[string]bool{
+	"red":           true,
+	"green":         true,
+	"refactor":      true,
+	"retrospective": true,
+}
 
 func (r Result) Validate() error {
 	var errs []string
diff --git a/internal/session/session.go b/internal/session/session.go
index f1d368f..8b60055 100644
--- a/internal/session/session.go
+++ b/internal/session/session.go
@@ -68,7 +68,7 @@ func Read(sessionsDir, sessionID string) ([]Entry, error) {
 	path := filepath.Join(sessionsDir, sessionID+".jsonl")
 	f, err := os.Open(path)
 	if errors.Is(err, fs.ErrNotExist) {
-		return nil, nil
+		return []Entry{}, nil
 	}
 	if err != nil {
 		return nil, fmt.Errorf("open session log: %w", err)