Add mol-polecat-work, mol-polecat-lease, mol-gastown-boot formulas; fix spawn.go to use catalog ID

internal/cmd/crew.go

@@ -197,6 +197,36 @@ Examples:
 	RunE: runCrewPristine,
 }
 
+var crewNextCmd = &cobra.Command{
+	Use:   "next",
+	Short: "Switch to next crew session in same rig",
+	Long: `Switch to the next crew session in the same rig.
+
+Cycles through crew sessions alphabetically. When you reach the last
+crew, wraps around to the first.
+
+This command is bound to C-b n in crew sessions for quick switching.
+
+Examples:
+  gt crew next                    # Switch to next crew in same rig`,
+	RunE: runCrewNext,
+}
+
+var crewPrevCmd = &cobra.Command{
+	Use:   "prev",
+	Short: "Switch to previous crew session in same rig",
+	Long: `Switch to the previous crew session in the same rig.
+
+Cycles through crew sessions in reverse alphabetical order. When you
+reach the first crew, wraps around to the last.
+
+This command is bound to C-b p in crew sessions for quick switching.
+
+Examples:
+  gt crew prev                    # Switch to previous crew in same rig`,
+	RunE: runCrewPrev,
+}
+
 func init() {
 	// Add flags
 	crewAddCmd.Flags().StringVar(&crewRig, "rig", "", "Rig to create crew workspace in")
@@ -236,6 +266,8 @@ func init() {
 	crewCmd.AddCommand(crewRenameCmd)
 	crewCmd.AddCommand(crewPristineCmd)
 	crewCmd.AddCommand(crewRestartCmd)
+	crewCmd.AddCommand(crewNextCmd)
+	crewCmd.AddCommand(crewPrevCmd)
 
 	rootCmd.AddCommand(crewCmd)
 }

internal/cmd/crew_cycle.go

@@ -0,0 +1,79 @@
+package cmd
+
+import (
+	"fmt"
+	"os/exec"
+	"sort"
+
+	"github.com/spf13/cobra"
+)
+
+// cycleCrewSession switches to the next or previous crew session in the same rig.
+// direction: 1 for next, -1 for previous
+func cycleCrewSession(direction int) error {
+	// Get current session
+	currentSession := getCurrentTmuxSession()
+	if currentSession == "" {
+		return fmt.Errorf("not in a tmux session")
+	}
+
+	// Parse rig name from current session
+	rigName, _, ok := parseCrewSessionName(currentSession)
+	if !ok {
+		return fmt.Errorf("not in a crew session (expected gt-<rig>-crew-<name>)")
+	}
+
+	// Find all crew sessions for this rig
+	sessions, err := findRigCrewSessions(rigName)
+	if err != nil {
+		return fmt.Errorf("listing sessions: %w", err)
+	}
+
+	if len(sessions) == 0 {
+		return fmt.Errorf("no crew sessions found for rig %s", rigName)
+	}
+
+	// Sort for consistent ordering
+	sort.Strings(sessions)
+
+	// Find current position
+	currentIdx := -1
+	for i, s := range sessions {
+		if s == currentSession {
+			currentIdx = i
+			break
+		}
+	}
+
+	if currentIdx == -1 {
+		// Current session not in list (shouldn't happen)
+		return fmt.Errorf("current session not found in crew list")
+	}
+
+	// Calculate target index (with wrapping)
+	targetIdx := (currentIdx + direction + len(sessions)) % len(sessions)
+
+	if targetIdx == currentIdx {
+		// Only one session, nothing to switch to
+		fmt.Printf("Only one crew session in rig %s\n", rigName)
+		return nil
+	}
+
+	targetSession := sessions[targetIdx]
+
+	// Switch to target session
+	cmd := exec.Command("tmux", "switch-client", "-t", targetSession)
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("switching to %s: %w", targetSession, err)
+	}
+
+	return nil
+}
+
+func runCrewNext(cmd *cobra.Command, args []string) error {
+	return cycleCrewSession(1)
+}
+
+func runCrewPrev(cmd *cobra.Command, args []string) error {
+	return cycleCrewSession(-1)
+}

internal/cmd/crew_helpers.go

@@ -239,3 +239,74 @@ func ensureMainBranch(dir, roleName string) bool {
 
 	return true
 }
+
+// parseCrewSessionName extracts rig and crew name from a tmux session name.
+// Format: gt-<rig>-crew-<name>
+// Returns empty strings and false if the format doesn't match.
+func parseCrewSessionName(sessionName string) (rigName, crewName string, ok bool) {
+	// Must start with "gt-" and contain "-crew-"
+	if !strings.HasPrefix(sessionName, "gt-") {
+		return "", "", false
+	}
+
+	// Remove "gt-" prefix
+	rest := sessionName[3:]
+
+	// Find "-crew-" separator
+	idx := strings.Index(rest, "-crew-")
+	if idx == -1 {
+		return "", "", false
+	}
+
+	rigName = rest[:idx]
+	crewName = rest[idx+6:] // len("-crew-") = 6
+
+	if rigName == "" || crewName == "" {
+		return "", "", false
+	}
+
+	return rigName, crewName, true
+}
+
+// getCurrentTmuxSession returns the current tmux session name.
+// Returns empty string if not in tmux.
+func getCurrentTmuxSession() string {
+	if os.Getenv("TMUX") == "" {
+		return ""
+	}
+
+	cmd := exec.Command("tmux", "display-message", "-p", "#{session_name}")
+	out, err := cmd.Output()
+	if err != nil {
+		return ""
+	}
+
+	return strings.TrimSpace(string(out))
+}
+
+// findRigCrewSessions returns all crew sessions for a given rig, sorted alphabetically.
+// Uses tmux list-sessions to find sessions matching gt-<rig>-crew-* pattern.
+func findRigCrewSessions(rigName string) ([]string, error) {
+	cmd := exec.Command("tmux", "list-sessions", "-F", "#{session_name}")
+	out, err := cmd.Output()
+	if err != nil {
+		// No tmux server or no sessions
+		return nil, nil
+	}
+
+	prefix := fmt.Sprintf("gt-%s-crew-", rigName)
+	var sessions []string
+
+	for _, line := range strings.Split(strings.TrimSpace(string(out)), "\n") {
+		if line == "" {
+			continue
+		}
+		if strings.HasPrefix(line, prefix) {
+			sessions = append(sessions, line)
+		}
+	}
+
+	// Sessions are already sorted by tmux, but sort explicitly for consistency
+	// (alphabetical by session name means alphabetical by crew name)
+	return sessions, nil
+}

internal/cmd/spawn.go

@@ -104,9 +104,8 @@ func runSpawn(cmd *cobra.Command, args []string) error {
 	// Auto-use mol-polecat-work for issue-based spawns (Phase 3: Polecat Work Cycle)
 	// This gives polecats a structured workflow with checkpoints for crash recovery.
 	// Can be overridden with explicit --molecule flag.
-	// Note: gt-lwuu is the proto ID for mol-polecat-work
 	if spawnIssue != "" && spawnMolecule == "" {
-		spawnMolecule = "gt-lwuu"
+		spawnMolecule = "mol-polecat-work"
 	}
 
 	// Find workspace first (needed for rig inference)