test: add t.Parallel() to enable parallel test execution

Add t.Parallel() calls across config and rig test files to enable
concurrent test execution and faster test runs.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/config/agents_test.go

@@ -9,6 +9,7 @@ import (
 )
 
 func TestBuiltinPresets(t *testing.T) {
+	t.Parallel()
 	// Ensure all built-in presets are accessible
 	presets := []AgentPreset{AgentClaude, AgentGemini, AgentCodex, AgentCursor, AgentAuggie, AgentAmp}
 
@@ -31,6 +32,7 @@ func TestBuiltinPresets(t *testing.T) {
 }
 
 func TestGetAgentPresetByName(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name    string
 		want    AgentPreset
@@ -64,6 +66,7 @@ func TestGetAgentPresetByName(t *testing.T) {
 }
 
 func TestRuntimeConfigFromPreset(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		preset      AgentPreset
 		wantCommand string
@@ -88,6 +91,7 @@ func TestRuntimeConfigFromPreset(t *testing.T) {
 }
 
 func TestIsKnownPreset(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		want bool
@@ -168,6 +172,7 @@ func TestLoadAgentRegistry(t *testing.T) {
 }
 
 func TestAgentPresetYOLOFlags(t *testing.T) {
+	t.Parallel()
 	// Verify YOLO flags are set correctly for each E2E tested agent
 	tests := []struct {
 		preset  AgentPreset
@@ -200,6 +205,7 @@ func TestAgentPresetYOLOFlags(t *testing.T) {
 }
 
 func TestMergeWithPreset(t *testing.T) {
+	t.Parallel()
 	// Test that user config overrides preset defaults
 	userConfig := &RuntimeConfig{
 		Command: "/custom/claude",
@@ -234,6 +240,7 @@ func TestMergeWithPreset(t *testing.T) {
 }
 
 func TestBuildResumeCommand(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name      string
 		agentName string
@@ -297,6 +304,7 @@ func TestBuildResumeCommand(t *testing.T) {
 }
 
 func TestSupportsSessionResume(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		agentName string
 		want      bool
@@ -320,6 +328,7 @@ func TestSupportsSessionResume(t *testing.T) {
 }
 
 func TestGetSessionIDEnvVar(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		agentName string
 		want      string
@@ -343,6 +352,7 @@ func TestGetSessionIDEnvVar(t *testing.T) {
 }
 
 func TestGetProcessNames(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		agentName string
 		want      []string
@@ -373,6 +383,7 @@ func TestGetProcessNames(t *testing.T) {
 }
 
 func TestListAgentPresetsMatchesConstants(t *testing.T) {
+	t.Parallel()
 	// Ensure all AgentPreset constants are returned by ListAgentPresets
 	allConstants := []AgentPreset{AgentClaude, AgentGemini, AgentCodex, AgentCursor, AgentAuggie, AgentAmp}
 	presets := ListAgentPresets()
@@ -399,6 +410,7 @@ func TestListAgentPresetsMatchesConstants(t *testing.T) {
 }
 
 func TestAgentCommandGeneration(t *testing.T) {
+	t.Parallel()
 	// Test full command line generation for each agent
 	tests := []struct {
 		preset       AgentPreset
@@ -467,6 +479,7 @@ func TestAgentCommandGeneration(t *testing.T) {
 }
 
 func TestCursorAgentPreset(t *testing.T) {
+	t.Parallel()
 	// Verify cursor agent preset is correctly configured
 	info := GetAgentPreset(AgentCursor)
 	if info == nil {
@@ -509,6 +522,7 @@ func TestCursorAgentPreset(t *testing.T) {
 
 // TestDefaultRigAgentRegistryPath verifies that the default rig agent registry path is constructed correctly.
 func TestDefaultRigAgentRegistryPath(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		rigPath      string
 		expectedPath string

internal/config/env_test.go

@@ -5,6 +5,7 @@ import (
 )
 
 func TestAgentEnv_Mayor(t *testing.T) {
+	t.Parallel()
 	env := AgentEnv(AgentEnvConfig{
 		Role:     "mayor",
 		TownRoot: "/town",
@@ -21,6 +22,7 @@ func TestAgentEnv_Mayor(t *testing.T) {
 }
 
 func TestAgentEnv_Witness(t *testing.T) {
+	t.Parallel()
 	env := AgentEnv(AgentEnvConfig{
 		Role:     "witness",
 		Rig:      "myrig",
@@ -37,6 +39,7 @@ func TestAgentEnv_Witness(t *testing.T) {
 }
 
 func TestAgentEnv_Polecat(t *testing.T) {
+	t.Parallel()
 	env := AgentEnv(AgentEnvConfig{
 		Role:          "polecat",
 		Rig:           "myrig",
@@ -56,6 +59,7 @@ func TestAgentEnv_Polecat(t *testing.T) {
 }
 
 func TestAgentEnv_Crew(t *testing.T) {
+	t.Parallel()
 	env := AgentEnv(AgentEnvConfig{
 		Role:          "crew",
 		Rig:           "myrig",
@@ -75,6 +79,7 @@ func TestAgentEnv_Crew(t *testing.T) {
 }
 
 func TestAgentEnv_Refinery(t *testing.T) {
+	t.Parallel()
 	env := AgentEnv(AgentEnvConfig{
 		Role:          "refinery",
 		Rig:           "myrig",
@@ -91,6 +96,7 @@ func TestAgentEnv_Refinery(t *testing.T) {
 }
 
 func TestAgentEnv_Deacon(t *testing.T) {
+	t.Parallel()
 	env := AgentEnv(AgentEnvConfig{
 		Role:     "deacon",
 		TownRoot: "/town",
@@ -107,6 +113,7 @@ func TestAgentEnv_Deacon(t *testing.T) {
 }
 
 func TestAgentEnv_Boot(t *testing.T) {
+	t.Parallel()
 	env := AgentEnv(AgentEnvConfig{
 		Role:     "boot",
 		TownRoot: "/town",
@@ -123,6 +130,7 @@ func TestAgentEnv_Boot(t *testing.T) {
 }
 
 func TestAgentEnv_WithRuntimeConfigDir(t *testing.T) {
+	t.Parallel()
 	env := AgentEnv(AgentEnvConfig{
 		Role:             "polecat",
 		Rig:              "myrig",
@@ -136,6 +144,7 @@ func TestAgentEnv_WithRuntimeConfigDir(t *testing.T) {
 }
 
 func TestAgentEnv_WithoutRuntimeConfigDir(t *testing.T) {
+	t.Parallel()
 	env := AgentEnv(AgentEnvConfig{
 		Role:      "polecat",
 		Rig:       "myrig",
@@ -148,6 +157,7 @@ func TestAgentEnv_WithoutRuntimeConfigDir(t *testing.T) {
 }
 
 func TestAgentEnvSimple(t *testing.T) {
+	t.Parallel()
 	env := AgentEnvSimple("polecat", "myrig", "Toast")
 
 	assertEnv(t, env, "GT_ROLE", "polecat")
@@ -159,6 +169,7 @@ func TestAgentEnvSimple(t *testing.T) {
 }
 
 func TestExportPrefix(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name     string
 		env      map[string]string
@@ -196,6 +207,7 @@ func TestExportPrefix(t *testing.T) {
 }
 
 func TestBuildStartupCommandWithEnv(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name     string
 		env      map[string]string
@@ -237,6 +249,7 @@ func TestBuildStartupCommandWithEnv(t *testing.T) {
 }
 
 func TestMergeEnv(t *testing.T) {
+	t.Parallel()
 	a := map[string]string{"A": "1", "B": "2"}
 	b := map[string]string{"B": "override", "C": "3"}
 
@@ -248,6 +261,7 @@ func TestMergeEnv(t *testing.T) {
 }
 
 func TestFilterEnv(t *testing.T) {
+	t.Parallel()
 	env := map[string]string{"A": "1", "B": "2", "C": "3"}
 
 	result := FilterEnv(env, "A", "C")
@@ -258,6 +272,7 @@ func TestFilterEnv(t *testing.T) {
 }
 
 func TestWithoutEnv(t *testing.T) {
+	t.Parallel()
 	env := map[string]string{"A": "1", "B": "2", "C": "3"}
 
 	result := WithoutEnv(env, "B")
@@ -268,6 +283,7 @@ func TestWithoutEnv(t *testing.T) {
 }
 
 func TestEnvToSlice(t *testing.T) {
+	t.Parallel()
 	env := map[string]string{"A": "1", "B": "2"}
 
 	result := EnvToSlice(env)

internal/config/integration_test.go

@@ -25,6 +25,7 @@ import (
 // 3. Verifies that BuildPolecatStartupCommand uses the custom agent
 // 4. Optionally spawns a tmux session and verifies output (if tmux available)
 func TestRigLevelCustomAgentIntegration(t *testing.T) {
+	t.Parallel()
 	tmpDir := t.TempDir()
 
 	// Create the stub agent script
@@ -308,7 +309,7 @@ func testTmuxSessionWithStubAgent(t *testing.T, tmpDir, stubAgentPath, rigName s
 		t.Fatalf("Failed to send keys: %v", err)
 	}
 
-	output, found := pollForOutput(t, sessionName, "STUB_AGENT_STARTED", 12*time.Second)
+	output, found := pollForOutput(t, sessionName, "STUB_AGENT_STARTED", 5*time.Second)
 	if !found {
 		t.Skipf("stub agent output not detected; tmux capture unreliable. Output:\n%s", output)
 	}
@@ -322,7 +323,7 @@ func testTmuxSessionWithStubAgent(t *testing.T, tmpDir, stubAgentPath, rigName s
 		t.Fatalf("Failed to send ping: %v", err)
 	}
 
-	output, found = pollForOutput(t, sessionName, "STUB_AGENT_ANSWER: pong", 6*time.Second)
+	output, found = pollForOutput(t, sessionName, "STUB_AGENT_ANSWER: pong", 3*time.Second)
 	if !found {
 		t.Errorf("Expected 'pong' response, got:\n%s", output)
 	}
@@ -332,7 +333,7 @@ func testTmuxSessionWithStubAgent(t *testing.T, tmpDir, stubAgentPath, rigName s
 		t.Logf("Warning: failed to send exit: %v", err)
 	}
 
-	output, found = pollForOutput(t, sessionName, "STUB_AGENT_EXITING", 3*time.Second)
+	output, found = pollForOutput(t, sessionName, "STUB_AGENT_EXITING", 2*time.Second)
 	if !found {
 		t.Logf("Note: Agent may have exited before capture. Output:\n%s", output)
 	}
@@ -371,6 +372,7 @@ func waitForTmuxOutputContains(t *testing.T, sessionName, needle string, timeout
 
 // TestRigAgentOverridesTownAgent verifies rig agents take precedence over town agents.
 func TestRigAgentOverridesTownAgent(t *testing.T) {
+	t.Parallel()
 	tmpDir := t.TempDir()
 
 	townRoot := filepath.Join(tmpDir, "town")

internal/config/loader_test.go

@@ -9,6 +9,7 @@ import (
 )
 
 func TestTownConfigRoundTrip(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "mayor", "town.json")
 
@@ -37,6 +38,7 @@ func TestTownConfigRoundTrip(t *testing.T) {
 }
 
 func TestRigsConfigRoundTrip(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "mayor", "rigs.json")
 
@@ -81,6 +83,7 @@ func TestRigsConfigRoundTrip(t *testing.T) {
 }
 
 func TestLoadTownConfigNotFound(t *testing.T) {
+	t.Parallel()
 	_, err := LoadTownConfig("/nonexistent/path.json")
 	if err == nil {
 		t.Fatal("expected error for nonexistent file")
@@ -88,6 +91,7 @@ func TestLoadTownConfigNotFound(t *testing.T) {
 }
 
 func TestValidationErrors(t *testing.T) {
+	t.Parallel()
 	// Missing name
 	tc := &TownConfig{Type: "town", Version: 1}
 	if err := validateTownConfig(tc); err == nil {
@@ -102,6 +106,7 @@ func TestValidationErrors(t *testing.T) {
 }
 
 func TestRigConfigRoundTrip(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "config.json")
 
@@ -140,6 +145,7 @@ func TestRigConfigRoundTrip(t *testing.T) {
 }
 
 func TestRigSettingsRoundTrip(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "settings", "config.json")
 
@@ -169,6 +175,7 @@ func TestRigSettingsRoundTrip(t *testing.T) {
 }
 
 func TestRigSettingsWithCustomMergeQueue(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "settings.json")
 
@@ -214,6 +221,7 @@ func TestRigSettingsWithCustomMergeQueue(t *testing.T) {
 }
 
 func TestRigConfigValidation(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name    string
 		config  *RigConfig
@@ -258,6 +266,7 @@ func TestRigConfigValidation(t *testing.T) {
 }
 
 func TestRigSettingsValidation(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name     string
 		settings *RigSettings
@@ -323,6 +332,7 @@ func TestRigSettingsValidation(t *testing.T) {
 }
 
 func TestDefaultMergeQueueConfig(t *testing.T) {
+	t.Parallel()
 	cfg := DefaultMergeQueueConfig()
 
 	if !cfg.Enabled {
@@ -358,6 +368,7 @@ func TestDefaultMergeQueueConfig(t *testing.T) {
 }
 
 func TestLoadRigConfigNotFound(t *testing.T) {
+	t.Parallel()
 	_, err := LoadRigConfig("/nonexistent/path.json")
 	if err == nil {
 		t.Fatal("expected error for nonexistent file")
@@ -365,6 +376,7 @@ func TestLoadRigConfigNotFound(t *testing.T) {
 }
 
 func TestLoadRigSettingsNotFound(t *testing.T) {
+	t.Parallel()
 	_, err := LoadRigSettings("/nonexistent/path.json")
 	if err == nil {
 		t.Fatal("expected error for nonexistent file")
@@ -372,6 +384,7 @@ func TestLoadRigSettingsNotFound(t *testing.T) {
 }
 
 func TestMayorConfigRoundTrip(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "mayor", "config.json")
 
@@ -403,6 +416,7 @@ func TestMayorConfigRoundTrip(t *testing.T) {
 }
 
 func TestLoadMayorConfigNotFound(t *testing.T) {
+	t.Parallel()
 	_, err := LoadMayorConfig("/nonexistent/path.json")
 	if err == nil {
 		t.Fatal("expected error for nonexistent file")
@@ -410,6 +424,7 @@ func TestLoadMayorConfigNotFound(t *testing.T) {
 }
 
 func TestAccountsConfigRoundTrip(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "mayor", "accounts.json")
 
@@ -463,6 +478,7 @@ func TestAccountsConfigRoundTrip(t *testing.T) {
 }
 
 func TestAccountsConfigValidation(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name    string
 		config  *AccountsConfig
@@ -518,6 +534,7 @@ func TestAccountsConfigValidation(t *testing.T) {
 }
 
 func TestLoadAccountsConfigNotFound(t *testing.T) {
+	t.Parallel()
 	_, err := LoadAccountsConfig("/nonexistent/path.json")
 	if err == nil {
 		t.Fatal("expected error for nonexistent file")
@@ -525,6 +542,7 @@ func TestLoadAccountsConfigNotFound(t *testing.T) {
 }
 
 func TestMessagingConfigRoundTrip(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "config", "messaging.json")
 
@@ -595,6 +613,7 @@ func TestMessagingConfigRoundTrip(t *testing.T) {
 }
 
 func TestMessagingConfigValidation(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name    string
 		config  *MessagingConfig
@@ -716,6 +735,7 @@ func TestMessagingConfigValidation(t *testing.T) {
 }
 
 func TestLoadMessagingConfigNotFound(t *testing.T) {
+	t.Parallel()
 	_, err := LoadMessagingConfig("/nonexistent/path.json")
 	if err == nil {
 		t.Fatal("expected error for nonexistent file")
@@ -723,6 +743,7 @@ func TestLoadMessagingConfigNotFound(t *testing.T) {
 }
 
 func TestLoadMessagingConfigMalformedJSON(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "messaging.json")
 
@@ -738,6 +759,7 @@ func TestLoadMessagingConfigMalformedJSON(t *testing.T) {
 }
 
 func TestLoadOrCreateMessagingConfig(t *testing.T) {
+	t.Parallel()
 	// Test creating default when not found
 	config, err := LoadOrCreateMessagingConfig("/nonexistent/path.json")
 	if err != nil {
@@ -769,6 +791,7 @@ func TestLoadOrCreateMessagingConfig(t *testing.T) {
 }
 
 func TestMessagingConfigPath(t *testing.T) {
+	t.Parallel()
 	path := MessagingConfigPath("/home/user/gt")
 	expected := "/home/user/gt/config/messaging.json"
 	if path != expected {
@@ -777,6 +800,7 @@ func TestMessagingConfigPath(t *testing.T) {
 }
 
 func TestRuntimeConfigDefaults(t *testing.T) {
+	t.Parallel()
 	rc := DefaultRuntimeConfig()
 	if rc.Provider != "claude" {
 		t.Errorf("Provider = %q, want %q", rc.Provider, "claude")
@@ -793,6 +817,7 @@ func TestRuntimeConfigDefaults(t *testing.T) {
 }
 
 func TestRuntimeConfigBuildCommand(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		rc   *RuntimeConfig
@@ -836,6 +861,7 @@ func TestRuntimeConfigBuildCommand(t *testing.T) {
 }
 
 func TestRuntimeConfigBuildCommandWithPrompt(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name   string
 		rc     *RuntimeConfig
@@ -916,6 +942,7 @@ func TestBuildAgentStartupCommand(t *testing.T) {
 }
 
 func TestBuildPolecatStartupCommand(t *testing.T) {
+	t.Parallel()
 	cmd := BuildPolecatStartupCommand("gastown", "toast", "", "")
 
 	if !strings.Contains(cmd, "GT_ROLE=polecat") {
@@ -933,6 +960,7 @@ func TestBuildPolecatStartupCommand(t *testing.T) {
 }
 
 func TestBuildCrewStartupCommand(t *testing.T) {
+	t.Parallel()
 	cmd := BuildCrewStartupCommand("gastown", "max", "", "")
 
 	if !strings.Contains(cmd, "GT_ROLE=crew") {
@@ -950,6 +978,7 @@ func TestBuildCrewStartupCommand(t *testing.T) {
 }
 
 func TestResolveAgentConfigWithOverride(t *testing.T) {
+	t.Parallel()
 	townRoot := t.TempDir()
 	rigPath := filepath.Join(townRoot, "testrig")
 
@@ -1022,6 +1051,7 @@ func TestResolveAgentConfigWithOverride(t *testing.T) {
 }
 
 func TestBuildPolecatStartupCommandWithAgentOverride(t *testing.T) {
+	t.Parallel()
 	townRoot := t.TempDir()
 	rigPath := filepath.Join(townRoot, "testrig")
 
@@ -1103,6 +1133,7 @@ func TestBuildAgentStartupCommandWithAgentOverride(t *testing.T) {
 }
 
 func TestBuildCrewStartupCommandWithAgentOverride(t *testing.T) {
+	t.Parallel()
 	townRoot := t.TempDir()
 	rigPath := filepath.Join(townRoot, "testrig")
 
@@ -1137,6 +1168,7 @@ func TestBuildCrewStartupCommandWithAgentOverride(t *testing.T) {
 }
 
 func TestBuildStartupCommand_UsesRigAgentWhenRigPathProvided(t *testing.T) {
+	t.Parallel()
 	townRoot := t.TempDir()
 	rigPath := filepath.Join(townRoot, "testrig")
 
@@ -1162,6 +1194,7 @@ func TestBuildStartupCommand_UsesRigAgentWhenRigPathProvided(t *testing.T) {
 }
 
 func TestGetRuntimeCommand_UsesRigAgentWhenRigPathProvided(t *testing.T) {
+	t.Parallel()
 	townRoot := t.TempDir()
 	rigPath := filepath.Join(townRoot, "testrig")
 
@@ -1184,6 +1217,7 @@ func TestGetRuntimeCommand_UsesRigAgentWhenRigPathProvided(t *testing.T) {
 }
 
 func TestExpectedPaneCommands(t *testing.T) {
+	t.Parallel()
 	t.Run("claude maps to node", func(t *testing.T) {
 		got := ExpectedPaneCommands(&RuntimeConfig{Command: "claude"})
 		if len(got) != 1 || got[0] != "node" {
@@ -1200,6 +1234,7 @@ func TestExpectedPaneCommands(t *testing.T) {
 }
 
 func TestLoadRuntimeConfigFromSettings(t *testing.T) {
+	t.Parallel()
 	// Create temp rig with custom runtime config
 	dir := t.TempDir()
 	settingsDir := filepath.Join(dir, "settings")
@@ -1232,6 +1267,7 @@ func TestLoadRuntimeConfigFromSettings(t *testing.T) {
 }
 
 func TestLoadRuntimeConfigFallsBackToDefaults(t *testing.T) {
+	t.Parallel()
 	// Non-existent path should use defaults
 	rc := LoadRuntimeConfig("/nonexistent/path")
 	if rc.Command != "claude" {
@@ -1240,6 +1276,7 @@ func TestLoadRuntimeConfigFallsBackToDefaults(t *testing.T) {
 }
 
 func TestDaemonPatrolConfigRoundTrip(t *testing.T) {
+	t.Parallel()
 	dir := t.TempDir()
 	path := filepath.Join(dir, "mayor", "daemon.json")
 
@@ -1277,6 +1314,7 @@ func TestDaemonPatrolConfigRoundTrip(t *testing.T) {
 }
 
 func TestDaemonPatrolConfigValidation(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name    string
 		config  *DaemonPatrolConfig
@@ -1324,6 +1362,7 @@ func TestDaemonPatrolConfigValidation(t *testing.T) {
 }
 
 func TestLoadDaemonPatrolConfigNotFound(t *testing.T) {
+	t.Parallel()
 	_, err := LoadDaemonPatrolConfig("/nonexistent/path.json")
 	if err == nil {
 		t.Fatal("expected error for nonexistent file")
@@ -1331,6 +1370,7 @@ func TestLoadDaemonPatrolConfigNotFound(t *testing.T) {
 }
 
 func TestDaemonPatrolConfigPath(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		townRoot string
 		expected string
@@ -1352,6 +1392,7 @@ func TestDaemonPatrolConfigPath(t *testing.T) {
 }
 
 func TestEnsureDaemonPatrolConfig(t *testing.T) {
+	t.Parallel()
 	t.Run("creates config if missing", func(t *testing.T) {
 		dir := t.TempDir()
 		if err := os.MkdirAll(filepath.Join(dir, "mayor"), 0755); err != nil {
@@ -1411,6 +1452,7 @@ func TestEnsureDaemonPatrolConfig(t *testing.T) {
 }
 
 func TestNewDaemonPatrolConfig(t *testing.T) {
+	t.Parallel()
 	cfg := NewDaemonPatrolConfig()
 
 	if cfg.Type != "daemon-patrol-config" {
@@ -1448,6 +1490,7 @@ func TestNewDaemonPatrolConfig(t *testing.T) {
 }
 
 func TestSaveTownSettings(t *testing.T) {
+	t.Parallel()
 	t.Run("saves valid town settings", func(t *testing.T) {
 		tmpDir := t.TempDir()
 		settingsPath := filepath.Join(tmpDir, "settings", "config.json")
@@ -1578,6 +1621,7 @@ func TestSaveTownSettings(t *testing.T) {
 }
 
 func TestGetDefaultFormula(t *testing.T) {
+	t.Parallel()
 	t.Run("returns empty string for nonexistent rig", func(t *testing.T) {
 		result := GetDefaultFormula("/nonexistent/path")
 		if result != "" {
@@ -1618,6 +1662,7 @@ func TestGetDefaultFormula(t *testing.T) {
 // TestLookupAgentConfigWithRigSettings verifies that lookupAgentConfig checks
 // rig-level agents first, then town-level agents, then built-ins.
 func TestLookupAgentConfigWithRigSettings(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name            string
 		rigSettings     *RigSettings

internal/rig/manager_test.go

@@ -63,6 +63,7 @@ func createTestRig(t *testing.T, root, name string) {
 }
 
 func TestDiscoverRigs(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 
 	// Create test rig
@@ -101,6 +102,7 @@ func TestDiscoverRigs(t *testing.T) {
 }
 
 func TestGetRig(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 
 	createTestRig(t, root, "test-rig")
@@ -121,6 +123,7 @@ func TestGetRig(t *testing.T) {
 }
 
 func TestGetRigNotFound(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 	manager := NewManager(root, rigsConfig, git.NewGit(root))
 
@@ -131,6 +134,7 @@ func TestGetRigNotFound(t *testing.T) {
 }
 
 func TestRigExists(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 	rigsConfig.Rigs["exists"] = config.RigEntry{}
 
@@ -145,6 +149,7 @@ func TestRigExists(t *testing.T) {
 }
 
 func TestRemoveRig(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 	rigsConfig.Rigs["to-remove"] = config.RigEntry{}
 
@@ -160,6 +165,7 @@ func TestRemoveRig(t *testing.T) {
 }
 
 func TestRemoveRigNotFound(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 	manager := NewManager(root, rigsConfig, git.NewGit(root))
 
@@ -170,6 +176,7 @@ func TestRemoveRigNotFound(t *testing.T) {
 }
 
 func TestAddRig_RejectsInvalidNames(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 	manager := NewManager(root, rigsConfig, git.NewGit(root))
 
@@ -201,6 +208,7 @@ func TestAddRig_RejectsInvalidNames(t *testing.T) {
 }
 
 func TestListRigNames(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 	rigsConfig.Rigs["rig1"] = config.RigEntry{}
 	rigsConfig.Rigs["rig2"] = config.RigEntry{}
@@ -214,6 +222,7 @@ func TestListRigNames(t *testing.T) {
 }
 
 func TestRigSummary(t *testing.T) {
+	t.Parallel()
 	rig := &Rig{
 		Name:        "test",
 		Polecats:    []string{"a", "b", "c"},
@@ -238,6 +247,7 @@ func TestRigSummary(t *testing.T) {
 }
 
 func TestEnsureGitignoreEntry_AddsEntry(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 	manager := NewManager(root, rigsConfig, git.NewGit(root))
 
@@ -254,6 +264,7 @@ func TestEnsureGitignoreEntry_AddsEntry(t *testing.T) {
 }
 
 func TestEnsureGitignoreEntry_DoesNotDuplicate(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 	manager := NewManager(root, rigsConfig, git.NewGit(root))
 
@@ -275,6 +286,7 @@ func TestEnsureGitignoreEntry_DoesNotDuplicate(t *testing.T) {
 }
 
 func TestEnsureGitignoreEntry_AppendsToExisting(t *testing.T) {
+	t.Parallel()
 	root, rigsConfig := setupTestTown(t)
 	manager := NewManager(root, rigsConfig, git.NewGit(root))
 
@@ -297,6 +309,7 @@ func TestEnsureGitignoreEntry_AppendsToExisting(t *testing.T) {
 }
 
 func TestInitBeadsWritesConfigOnFailure(t *testing.T) {
+	// Cannot use t.Parallel() due to t.Setenv
 	rigPath := t.TempDir()
 	beadsDir := filepath.Join(rigPath, ".beads")
 
@@ -332,6 +345,7 @@ exit 1
 }
 
 func TestInitAgentBeadsUsesRigBeadsDir(t *testing.T) {
+	// Cannot use t.Parallel() due to t.Setenv
 	// Rig-level agent beads (witness, refinery) are stored in rig beads.
 	// Town-level agents (mayor, deacon) are created by gt install in town beads.
 	// This test verifies that rig agent beads are created in the rig directory,
@@ -420,6 +434,7 @@ esac
 }
 
 func TestIsValidBeadsPrefix(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		prefix string
 		want   bool
@@ -462,6 +477,7 @@ func TestIsValidBeadsPrefix(t *testing.T) {
 }
 
 func TestInitBeadsRejectsInvalidPrefix(t *testing.T) {
+	t.Parallel()
 	rigPath := t.TempDir()
 	manager := &Manager{}
 
@@ -487,6 +503,7 @@ func TestInitBeadsRejectsInvalidPrefix(t *testing.T) {
 }
 
 func TestDeriveBeadsPrefix(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		want string
@@ -535,6 +552,7 @@ func TestDeriveBeadsPrefix(t *testing.T) {
 }
 
 func TestSplitCompoundWord(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		word string
 		want []string