agent: use platform shell tool names

agent/approval.go

@@ -225,11 +225,12 @@ func approvalRequestWithEvaluation(req ApprovalRequest, evaluation ApprovalEvalu
 }
 
 func approvalSessionKey(req ApprovalRequest) string {
-	switch req.ToolName {
+	if IsShellToolName(req.ToolName) {
-	case "bash":
 		if command, ok := stringApprovalArg(req.Args, "command"); ok {
-			return "bash:" + command
+			return req.ToolName + ":" + command
 		}
+	}
+	switch req.ToolName {
 	case "edit":
 		if path, ok := stringApprovalArg(req.Args, "path"); ok {
 			return "edit:" + path
@@ -261,8 +262,8 @@ func (DefaultApprovalPolicy) EvaluateApproval(_ context.Context, req ApprovalReq
 		return evaluateWebApproval(req)
 	case "edit":
 		return evaluateEditApproval(req)
-	case "bash":
+	case "bash", "powershell":
-		return evaluateBashApproval(req)
+		return evaluateShellApproval(req)
 	default:
 		return ApprovalEvaluation{
 			RequirePrompt: true,
@@ -351,10 +352,10 @@ func sanitizeApprovalDisplay(value string) string {
 	return value
 }
 
-func evaluateBashApproval(req ApprovalRequest) ApprovalEvaluation {
+func evaluateShellApproval(req ApprovalRequest) ApprovalEvaluation {
 	command, ok := stringApprovalArg(req.Args, "command")
 	if !ok || strings.TrimSpace(command) == "" {
-		return denyApproval("bash", ApprovalRiskHigh, "missing command argument")
+		return denyApproval(req.ToolName, ApprovalRiskHigh, "missing command argument")
 	}
 
 	risk, reasons := classifyBashCommand(command)
@@ -364,9 +365,9 @@ func evaluateBashApproval(req ApprovalRequest) ApprovalEvaluation {
 	return ApprovalEvaluation{
 		RequirePrompt: true,
 		Risk:          risk,
-		Summary:       "Bash wants to run a command",
+		Summary:       fmt.Sprintf("%s wants to run a command", ToolDisplayName(req.ToolName)),
 		Reasons:       reasons,
-		SessionKey:    "bash:" + command,
+		SessionKey:    req.ToolName + ":" + command,
 	}
 }
 
@@ -380,7 +381,7 @@ func denyApproval(toolName string, risk ApprovalRisk, reason string) ApprovalEva
 	}
 }
 
-// Bash approval is static analysis of model-generated commands, not a sandbox.
+// Shell approval is static analysis of model-generated commands, not a sandbox.
 // Globs, aliases, environment, and runtime shell state are intentionally out of scope.
 func classifyBashCommand(command string) (ApprovalRisk, []string) {
 	classifier := bashClassifier{risk: ApprovalRiskMedium}

agent/approval_test.go

@@ -223,6 +223,23 @@ func TestBashApprovalClassifiesHighRiskShell(t *testing.T) {
 	}
 }
 
+func TestPowerShellApprovalUsesShellPolicy(t *testing.T) {
+	evaluation := DefaultApprovalPolicy{}.EvaluateApproval(context.Background(), ApprovalRequest{
+		ToolName: "powershell",
+		Args:     map[string]any{"command": "Remove-Item -Recurse tmp"},
+	})
+
+	if !evaluation.RequirePrompt {
+		t.Fatal("powershell should require prompt")
+	}
+	if evaluation.Summary != "PowerShell wants to run a command" {
+		t.Fatalf("summary = %q", evaluation.Summary)
+	}
+	if evaluation.SessionKey != "powershell:Remove-Item -Recurse tmp" {
+		t.Fatalf("session key = %q", evaluation.SessionKey)
+	}
+}
+
 func TestBashApprovalClassifiesDynamicShellEvasions(t *testing.T) {
 	tests := []struct {
 		name   string

agent/tool_display.go

@@ -18,6 +18,8 @@ func ToolDisplayName(name string) string {
 		return "Web Fetch"
 	case "bash":
 		return "Bash"
+	case "powershell":
+		return "PowerShell"
 	case "read":
 		return "Read"
 	case "list":
@@ -39,7 +41,7 @@ func ToolInvocationLabel(name string, args map[string]any) string {
 	displayName := ToolDisplayName(name)
 	for _, key := range []string{"query", "url", "command", "path", "name"} {
 		if value, ok := displayStringArg(args, key); ok {
-			if name == "bash" && key == "command" {
+			if IsShellToolName(name) && key == "command" {
 				value = truncateDisplayRunes(value, maxToolInvocationCommandRunes)
 			}
 			return fmt.Sprintf("%s(%s)", displayName, strconv.Quote(value))
@@ -51,6 +53,11 @@ func ToolInvocationLabel(name string, args map[string]any) string {
 	return fmt.Sprintf("%s(%s)", displayName, formatDisplayArgs(args))
 }
 
+// IsShellToolName reports whether name identifies a platform shell tool.
+func IsShellToolName(name string) bool {
+	return name == "bash" || name == "powershell"
+}
+
 func displayStringArg(args map[string]any, key string) (string, bool) {
 	value, ok := args[key].(string)
 	if !ok || strings.TrimSpace(value) == "" {

agent/tool_display_test.go

@@ -22,3 +22,12 @@ func TestToolInvocationLabelCountsRunes(t *testing.T) {
 		t.Fatalf("label = %q, want %q", label, want)
 	}
 }
+
+func TestToolInvocationLabelTruncatesLongPowerShellCommand(t *testing.T) {
+	command := strings.Repeat("a", 101)
+	label := ToolInvocationLabel("powershell", map[string]any{"command": command})
+	want := `PowerShell("` + strings.Repeat("a", 100) + `...")`
+	if label != want {
+		t.Fatalf("label = %q, want %q", label, want)
+	}
+}

agent/tools/bash.go

@@ -26,18 +26,18 @@ func NewBash() *Bash {
 }
 
 func (b *Bash) Name() string {
-	return "bash"
+	return shellToolName()
 }
 
 func (b *Bash) Description() string {
-	return "Execute a shell command on the system. Use this to run shell commands, inspect files, run tests, and perform development tasks."
+	return shellToolDescription()
 }
 
 func (b *Bash) Schema() api.ToolFunction {
 	props := api.NewToolPropertiesMap()
 	props.Set("command", api.ToolProperty{
 		Type:        api.PropertyType{"string"},
-		Description: "The shell command to execute.",
+		Description: shellCommandDescription(),
 	})
 	return api.ToolFunction{
 		Name:        b.Name(),

agent/tools/bash_unix.go

@@ -8,6 +8,18 @@ import (
 	"syscall"
 )
 
+func shellToolName() string {
+	return "bash"
+}
+
+func shellToolDescription() string {
+	return "Execute a bash command on the system. Use this to inspect files, run tests, and perform development tasks."
+}
+
+func shellCommandDescription() string {
+	return "The bash command to execute."
+}
+
 func newBashCommand(ctx context.Context, command, cwdPath string) *exec.Cmd {
 	script := command + "\n__ollama_status=$?\npwd -P > " + shellQuote(cwdPath) + "\nexit $__ollama_status"
 	cmd := exec.CommandContext(ctx, "bash", "-c", script)

agent/tools/bash_windows.go

@@ -14,6 +14,18 @@ import (
 
 var bashJobHandles sync.Map
 
+func shellToolName() string {
+	return "powershell"
+}
+
+func shellToolDescription() string {
+	return "Execute a PowerShell command on the system. Use this to inspect files, run tests, and perform development tasks."
+}
+
+func shellCommandDescription() string {
+	return "The PowerShell command to execute."
+}
+
 func newBashCommand(ctx context.Context, command, cwdPath string) *exec.Cmd {
 	return exec.CommandContext(
 		ctx,

cmd/agent_tui.go

@@ -768,7 +768,7 @@ func agentToolsRegistry(ctx context.Context, client *api.Client, modelName strin
 	}
 
 	registry := coreagent.NewRegistry()
-	if os.Getenv("OLLAMA_AGENT_DISABLE_BASH") == "" {
+	if os.Getenv("OLLAMA_AGENT_DISABLE_SHELL") == "" {
 		registry.Register(agenttools.NewBash())
 	}
 	registry.Register(agenttools.NewRead())

cmd/agent_tui_test.go

@@ -16,6 +16,7 @@ import (
 
 	coreagent "github.com/ollama/ollama/agent"
 	"github.com/ollama/ollama/agent/skills"
+	agenttools "github.com/ollama/ollama/agent/tools"
 	"github.com/ollama/ollama/api"
 	agentchat "github.com/ollama/ollama/cmd/tui/chat"
 	"github.com/ollama/ollama/envconfig"
@@ -208,7 +209,7 @@ func captureStderr(t *testing.T, fn func()) string {
 
 func TestAgentToolsRegistryNoCloudDisablesWebTools(t *testing.T) {
 	t.Setenv("OLLAMA_NO_CLOUD", "1")
-	t.Setenv("OLLAMA_AGENT_DISABLE_BASH", "")
+	t.Setenv("OLLAMA_AGENT_DISABLE_SHELL", "")
 	t.Setenv("OLLAMA_AGENT_DISABLE_WEBSEARCH", "")
 
 	statusCalls := 0
@@ -235,7 +236,7 @@ func TestAgentToolsRegistryNoCloudDisablesWebTools(t *testing.T) {
 	if registry == nil {
 		t.Fatal("registry = nil, want local tools")
 	}
-	if !registry.Has("bash") || !registry.Has("read") || !registry.Has("edit") {
+	if !registry.Has(agenttools.NewBash().Name()) || !registry.Has("read") || !registry.Has("edit") {
 		t.Fatalf("local tools missing: %v", registry.Names())
 	}
 	if registry.Has("list") {

cmd/tui/chat/approval.go

@@ -222,13 +222,14 @@ func (m chatModel) renderApprovalPromptLines(width int) []string {
 }
 
 func approvalRequestDetail(request coreagent.ApprovalRequest, width int) string {
-	switch request.ToolName {
+	if coreagent.IsShellToolName(request.ToolName) {
-	case "bash":
 		command, ok := rawStringArg(request.Args, "command")
 		if !ok {
 			return ""
 		}
-		return strings.Join(wrapChatText("$ "+command, width), "\n")
+		return strings.Join(wrapChatText(shellPromptPrefix(request.ToolName)+command, width), "\n")
+	}
+	switch request.ToolName {
 	case "edit":
 		path, ok := rawStringArg(request.Args, "path")
 		if !ok {

cmd/tui/chat/chat.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"hash/fnv"
+	"runtime"
 	"slices"
 	"strings"
 
@@ -236,7 +237,11 @@ func Run(ctx context.Context, opts Options) (*Result, error) {
 		m.preloadingModel = strings.TrimSpace(opts.Model)
 	}
 
-	p := tea.NewProgram(m, tea.WithReportFocus(), tea.WithMouseCellMotion())
+	programOptions := []tea.ProgramOption{tea.WithReportFocus()}
+	if runtime.GOOS != "windows" {
+		programOptions = append(programOptions, tea.WithMouseCellMotion())
+	}
+	p := tea.NewProgram(m, programOptions...)
 	finalModel, err := p.Run()
 	if err != nil {
 		return nil, err
@@ -429,6 +434,9 @@ func (m *chatModel) enterFullScreen() {
 }
 
 func (m chatModel) updateMouse(msg tea.MouseMsg) (tea.Model, tea.Cmd) {
+	if runtime.GOOS == "windows" {
+		return m, nil
+	}
 	if m.modelPicker != nil {
 		switch msg.Type {
 		case tea.MouseWheelUp:

cmd/tui/chat/render.go

@@ -1076,11 +1076,12 @@ func renderToolCallDetailLines(entry chatEntry, width int) []string {
 	if len(entry.args) == 0 {
 		return nil
 	}
-	switch entry.detail {
+	if coreagent.IsShellToolName(entry.detail) {
-	case "bash":
 		if command, ok := rawStringArg(entry.args, "command"); ok {
-			return renderToolCallArgLine("$ "+command, width)
+			return renderToolCallArgLine(shellPromptPrefix(entry.detail)+command, width)
 		}
+	}
+	switch entry.detail {
 	case "web_search":
 		if query, ok := rawStringArg(entry.args, "query"); ok {
 			return renderToolCallArgLine("query: "+query, width)
@@ -1093,6 +1094,13 @@ func renderToolCallDetailLines(entry chatEntry, width int) []string {
 	return renderToolCallArgs(entry.args, width)
 }
 
+func shellPromptPrefix(toolName string) string {
+	if toolName == "powershell" {
+		return "PS> "
+	}
+	return "$ "
+}
+
 func renderToolCallArgs(args map[string]any, width int) []string {
 	keys := make([]string, 0, len(args))
 	for key := range args {