Remove -y flag from browsers delete, make non-interactive (#85)

## Summary

- Remove the `-y/--yes` confirmation flag from `kernel browsers delete`
- Make browser deletion non-interactive by default

The confirmation prompt was overly cautious and not necessary:

1. **LLM compatibility**: The `-y` flag frequently trips up LLMs that
use the CLI - they either forget to pass it or get stuck waiting for
interactive confirmation that never comes in their execution
environment.

2. **Idempotent operation**: Browser deletion is already idempotent
(deleting a non-existent browser succeeds), so requiring confirmation
adds friction without meaningful protection.

3. **Consistency**: Other delete commands in the CLI (like browser
session cleanup) don't require confirmation.

## Test plan

- [x] Existing browser delete tests updated and passing
- [x] `go build ./...` succeeds
- [x] Manual verification: `kernel browsers delete <id>` now deletes
without prompting

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Makes `kernel browsers delete` non-interactive and removes
confirmation flags.
> 
> - Removes `-y/--yes` flag and all interactive confirmation logic from
`BrowsersCmd.Delete`; command is now idempotent and non-interactive
> - `Delete` now tries `DeleteByID` then persistent delete, treating
not-found as success; prints a single success message
> - Removes flag wiring and usage of `--yes` in CLI
(`runBrowsersDelete`) and README examples
> - Updates tests to match the new behavior and deletes confirm-path
test cases
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
5b74b84. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: rgarcia

README.md

@@ -213,7 +213,6 @@ Commands with JSON output support:
   - `--output json`, `-o json` - Output raw JSON object
   - _Note: When a pool is specified, omit other session configuration flags—pool settings determine profile, proxy, viewport, etc._
 - `kernel browsers delete <id>` - Delete a browser
-  - `-y, --yes` - Skip confirmation prompt
 - `kernel browsers view <id>` - Get live view URL for a browser
   - `--output json`, `-o json` - Output JSON with liveViewUrl
 - `kernel browsers get <id>` - Get detailed browser session info
@@ -519,7 +518,7 @@ kernel browsers create --kiosk
 kernel browsers create --profile-name my-profile
 
 # Delete a browser
-kernel browsers delete browser123 --yes
+kernel browsers delete browser123
 
 # Get live view URL
 kernel browsers view browser123

cmd/browsers.go

@@ -168,8 +168,7 @@ type BrowsersCreateInput struct {
 }
 
 type BrowsersDeleteInput struct {
-	Identifier  string
-	SkipConfirm bool
+	Identifier string
 }
 
 type BrowsersViewInput struct {
@@ -406,39 +405,7 @@ func buildBrowserTableData(sessionID, cdpURL, liveViewURL string, persistence ke
 }
 
 func (b BrowsersCmd) Delete(ctx context.Context, in BrowsersDeleteInput) error {
-	if !in.SkipConfirm {
-		found, err := b.browsers.Get(ctx, in.Identifier)
-		if err != nil {
-			return util.CleanedUpSdkError{Err: err}
-		}
-
-		confirmMsg := fmt.Sprintf("Are you sure you want to delete browser \"%s\"?", in.Identifier)
-		pterm.DefaultInteractiveConfirm.DefaultText = confirmMsg
-		result, _ := pterm.DefaultInteractiveConfirm.Show()
-		if !result {
-			pterm.Info.Println("Deletion cancelled")
-			return nil
-		}
-
-		if found.Persistence.ID == in.Identifier {
-			err = b.browsers.Delete(ctx, kernel.BrowserDeleteParams{PersistentID: in.Identifier})
-			if err != nil && !util.IsNotFound(err) {
-				return util.CleanedUpSdkError{Err: err}
-			}
-			pterm.Success.Printf("Successfully deleted browser: %s\n", in.Identifier)
-			return nil
-		}
-
-		pterm.Info.Printf("Deleting browser: %s\n", in.Identifier)
-		err = b.browsers.DeleteByID(ctx, in.Identifier)
-		if err != nil && !util.IsNotFound(err) {
-			return util.CleanedUpSdkError{Err: err}
-		}
-		pterm.Success.Printf("Successfully deleted browser: %s\n", in.Identifier)
-		return nil
-	}
-
-	// Skip confirmation: try both deletion modes without listing first
+	// Try both deletion modes without confirmation
 	// Treat not found as a success (idempotent delete)
 	var nonNotFoundErrors []error
 
@@ -2145,8 +2112,6 @@ func init() {
 	browsersCreateCmd.Flags().String("pool-id", "", "Browser pool ID to acquire from (mutually exclusive with --pool-name)")
 	browsersCreateCmd.Flags().String("pool-name", "", "Browser pool name to acquire from (mutually exclusive with --pool-id)")
 
-	// Add flags for delete command
-	browsersDeleteCmd.Flags().BoolP("yes", "y", false, "Skip confirmation prompt")
 
 	// no flags for view; it takes a single positional argument
 }
@@ -2305,13 +2270,12 @@ func runBrowsersCreate(cmd *cobra.Command, args []string) error {
 
 func runBrowsersDelete(cmd *cobra.Command, args []string) error {
 	client := getKernelClient(cmd)
-	skipConfirm, _ := cmd.Flags().GetBool("yes")
 
 	svc := client.Browsers
 	b := BrowsersCmd{browsers: &svc}
 	// Iterate all provided identifiers
 	for _, identifier := range args {
-		if err := b.Delete(cmd.Context(), BrowsersDeleteInput{Identifier: identifier, SkipConfirm: skipConfirm}); err != nil {
+		if err := b.Delete(cmd.Context(), BrowsersDeleteInput{Identifier: identifier}); err != nil {
 			return err
 		}
 	}

cmd/browsers_test.go

@@ -243,7 +243,7 @@ func TestBrowsersCreate_PrintsErrorOnFailure(t *testing.T) {
 	assert.Contains(t, err.Error(), "create failed")
 }
 
-func TestBrowsersDelete_SkipConfirm_Success(t *testing.T) {
+func TestBrowsersDelete_Success(t *testing.T) {
 	setupStdoutCapture(t)
 
 	fake := &FakeBrowsersService{
@@ -255,13 +255,13 @@ func TestBrowsersDelete_SkipConfirm_Success(t *testing.T) {
 		},
 	}
 	b := BrowsersCmd{browsers: fake}
-	_ = b.Delete(context.Background(), BrowsersDeleteInput{Identifier: "any", SkipConfirm: true})
+	_ = b.Delete(context.Background(), BrowsersDeleteInput{Identifier: "any"})
 
 	out := outBuf.String()
 	assert.Contains(t, out, "Successfully deleted (or already absent) browser: any")
 }
 
-func TestBrowsersDelete_SkipConfirm_Failure(t *testing.T) {
+func TestBrowsersDelete_Failure(t *testing.T) {
 	setupStdoutCapture(t)
 
 	fake := &FakeBrowsersService{
@@ -273,23 +273,13 @@ func TestBrowsersDelete_SkipConfirm_Failure(t *testing.T) {
 		},
 	}
 	b := BrowsersCmd{browsers: fake}
-	err := b.Delete(context.Background(), BrowsersDeleteInput{Identifier: "any", SkipConfirm: true})
+	err := b.Delete(context.Background(), BrowsersDeleteInput{Identifier: "any"})
 
 	assert.Error(t, err)
 	errMsg := err.Error()
 	assert.True(t, strings.Contains(errMsg, "right failed") || strings.Contains(errMsg, "left failed"), "expected error message to contain either 'right failed' or 'left failed', got: %s", errMsg)
 }
 
-func TestBrowsersDelete_WithConfirm_NotFound(t *testing.T) {
-	setupStdoutCapture(t)
-
-	fake := &FakeBrowsersService{}
-	b := BrowsersCmd{browsers: fake}
-	err := b.Delete(context.Background(), BrowsersDeleteInput{Identifier: "missing", SkipConfirm: false})
-
-	assert.Error(t, err)
-	assert.Contains(t, err.Error(), "not found")
-}
 
 func TestBrowsersView_ByID_PrintsURL(t *testing.T) {
 	// Capture both pterm output and raw stdout