chore: fmt.Errorf(static) → errors.New

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pkg/coredeno/lifecycle.go

@@ -2,6 +2,7 @@ package coredeno
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"os"
 	"os/exec"
@@ -14,7 +15,7 @@ func (s *Sidecar) Start(ctx context.Context, args ...string) error {
 	defer s.mu.Unlock()
 
 	if s.cmd != nil {
-		return fmt.Errorf("coredeno: already running")
+		return errors.New("coredeno: already running")
 	}
 
 	// Ensure socket directory exists with owner-only permissions

pkg/framework/core/service_manager.go

@@ -1,6 +1,7 @@
 package core
 
 import (
+	"errors"
 	"fmt"
 	"sync"
 )
@@ -27,7 +28,7 @@ func newServiceManager() *serviceManager {
 // It also appends to startables/stoppables if the service implements those interfaces.
 func (m *serviceManager) registerService(name string, svc any) error {
 	if name == "" {
-		return fmt.Errorf("core: service name cannot be empty")
+		return errors.New("core: service name cannot be empty")
 	}
 	m.mu.Lock()
 	defer m.mu.Unlock()

pkg/i18n/internal/validate/main.go

@@ -19,6 +19,7 @@ package main
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"go/ast"
 	"go/parser"
@@ -101,7 +102,7 @@ func findProjectRoot() (string, error) {
 		}
 		parent := filepath.Dir(dir)
 		if parent == dir {
-			return "", fmt.Errorf("could not find go.mod in any parent directory")
+			return "", errors.New("could not find go.mod in any parent directory")
 		}
 		dir = parent
 	}

pkg/i18n/service.go

@@ -4,6 +4,7 @@ package i18n
 import (
 	"embed"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io/fs"
 	"path"
@@ -118,7 +119,7 @@ func NewWithLoader(loader Loader, opts ...Option) (*Service, error) {
 	// Load all available languages
 	langs := loader.Languages()
 	if len(langs) == 0 {
-		return nil, fmt.Errorf("no languages available from loader")
+		return nil, errors.New("no languages available from loader")
 	}
 
 	for _, lang := range langs {
@@ -223,7 +224,7 @@ func (s *Service) SetLanguage(lang string) error {
 	}
 
 	if len(s.availableLangs) == 0 {
-		return fmt.Errorf("no languages available")
+		return errors.New("no languages available")
 	}
 
 	matcher := language.NewMatcher(s.availableLangs)

pkg/manifest/sign.go

@@ -3,6 +3,7 @@ package manifest
 import (
 	"crypto/ed25519"
 	"encoding/base64"
+	"errors"
 	"fmt"
 
 	"gopkg.in/yaml.v3"
@@ -29,7 +30,7 @@ func Sign(m *Manifest, priv ed25519.PrivateKey) error {
 // Verify checks the ed25519 signature in m.Sign against the public key.
 func Verify(m *Manifest, pub ed25519.PublicKey) (bool, error) {
 	if m.Sign == "" {
-		return false, fmt.Errorf("manifest.Verify: no signature present")
+		return false, errors.New("manifest.Verify: no signature present")
 	}
 	sig, err := base64.StdEncoding.DecodeString(m.Sign)
 	if err != nil {

pkg/process/runner.go

@@ -2,7 +2,7 @@ package process
 
 import (
 	"context"
-	"fmt"
+	"errors"
 	"sync"
 	"time"
 )
@@ -104,7 +104,7 @@ func (r *Runner) RunAll(ctx context.Context, specs []RunSpec) (*RunAllResult, er
 					Name:    name,
 					Spec:    remaining[name],
 					Skipped: true,
-					Error:   fmt.Errorf("circular dependency or missing dependency"),
+					Error:   errors.New("circular dependency or missing dependency"),
 				})
 			}
 			break
@@ -136,7 +136,7 @@ func (r *Runner) RunAll(ctx context.Context, specs []RunSpec) (*RunAllResult, er
 						Name:    spec.Name,
 						Spec:    spec,
 						Skipped: true,
-						Error:   fmt.Errorf("skipped due to dependency failure"),
+						Error:   errors.New("skipped due to dependency failure"),
 					}
 				} else {
 					result = r.runSpec(ctx, spec)

pkg/repos/registry.go

@@ -4,6 +4,7 @@
 package repos
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -146,7 +147,7 @@ func FindRegistry(m io.Medium) (string, error) {
 		}
 	}
 
-	return "", fmt.Errorf("repos.yaml not found")
+	return "", errors.New("repos.yaml not found")
 }
 
 // ScanDirectory creates a Registry by scanning a directory for git repos.

pkg/session/video.go

@@ -1,6 +1,7 @@
 package session
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"os/exec"
@@ -10,7 +11,7 @@ import (
 // RenderMP4 generates an MP4 video from session events using VHS (charmbracelet).
 func RenderMP4(sess *Session, outputPath string) error {
 	if _, err := exec.LookPath("vhs"); err != nil {
-		return fmt.Errorf("vhs not installed (go install github.com/charmbracelet/vhs@latest)")
+		return errors.New("vhs not installed (go install github.com/charmbracelet/vhs@latest)")
 	}
 
 	tape := generateTape(sess, outputPath)

pkg/webview/actions.go

@@ -2,6 +2,7 @@ package webview
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"time"
 )
@@ -191,7 +192,7 @@ func (a HoverAction) Execute(ctx context.Context, wv *Webview) error {
 	}
 
 	if elem.BoundingBox == nil {
-		return fmt.Errorf("element has no bounding box")
+		return errors.New("element has no bounding box")
 	}
 
 	x := elem.BoundingBox.X + elem.BoundingBox.Width/2
@@ -495,7 +496,7 @@ func (wv *Webview) DragAndDrop(sourceSelector, targetSelector string) error {
 		return fmt.Errorf("source element not found: %w", err)
 	}
 	if source.BoundingBox == nil {
-		return fmt.Errorf("source element has no bounding box")
+		return errors.New("source element has no bounding box")
 	}
 
 	target, err := wv.querySelector(ctx, targetSelector)
@@ -503,7 +504,7 @@ func (wv *Webview) DragAndDrop(sourceSelector, targetSelector string) error {
 		return fmt.Errorf("target element not found: %w", err)
 	}
 	if target.BoundingBox == nil {
-		return fmt.Errorf("target element has no bounding box")
+		return errors.New("target element has no bounding box")
 	}
 
 	// Calculate center points

pkg/webview/angular.go

@@ -2,6 +2,7 @@ package webview
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"time"
 )
@@ -42,7 +43,7 @@ func (ah *AngularHelper) waitForAngular(ctx context.Context) error {
 		return err
 	}
 	if !isAngular {
-		return fmt.Errorf("not an Angular application")
+		return errors.New("not an Angular application")
 	}
 
 	// Wait for Zone.js stability
@@ -278,13 +279,13 @@ func (ah *AngularHelper) GetRouterState() (*AngularRouterState, error) {
 	}
 
 	if result == nil {
-		return nil, fmt.Errorf("could not get router state")
+		return nil, errors.New("could not get router state")
 	}
 
 	// Parse result
 	resultMap, ok := result.(map[string]any)
 	if !ok {
-		return nil, fmt.Errorf("invalid router state format")
+		return nil, errors.New("invalid router state format")
 	}
 
 	state := &AngularRouterState{

pkg/webview/cdp.go

@@ -3,6 +3,7 @@ package webview
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -121,7 +122,7 @@ func NewCDPClient(debugURL string) (*CDPClient, error) {
 	}
 
 	if wsURL == "" {
-		return nil, fmt.Errorf("no WebSocket URL available")
+		return nil, errors.New("no WebSocket URL available")
 	}
 
 	// Connect to WebSocket
@@ -306,7 +307,7 @@ func (c *CDPClient) NewTab(url string) (*CDPClient, error) {
 	}
 
 	if target.WebSocketDebuggerURL == "" {
-		return nil, fmt.Errorf("no WebSocket URL for new tab")
+		return nil, errors.New("no WebSocket URL for new tab")
 	}
 
 	// Connect to new tab

pkg/webview/webview.go

@@ -24,6 +24,7 @@ package webview
 import (
 	"context"
 	"encoding/base64"
+	"errors"
 	"fmt"
 	"sync"
 	"time"
@@ -122,7 +123,7 @@ func New(opts ...Option) (*Webview, error) {
 
 	if wv.client == nil {
 		cancel()
-		return nil, fmt.Errorf("no debug URL provided; use WithDebugURL option")
+		return nil, errors.New("no debug URL provided; use WithDebugURL option")
 	}
 
 	// Enable console capture
@@ -222,7 +223,7 @@ func (wv *Webview) Screenshot() ([]byte, error) {
 
 	dataStr, ok := result["data"].(string)
 	if !ok {
-		return nil, fmt.Errorf("invalid screenshot data")
+		return nil, errors.New("invalid screenshot data")
 	}
 
 	data, err := base64.StdEncoding.DecodeString(dataStr)
@@ -263,7 +264,7 @@ func (wv *Webview) GetURL() (string, error) {
 
 	url, ok := result.(string)
 	if !ok {
-		return "", fmt.Errorf("invalid URL result")
+		return "", errors.New("invalid URL result")
 	}
 
 	return url, nil
@@ -281,7 +282,7 @@ func (wv *Webview) GetTitle() (string, error) {
 
 	title, ok := result.(string)
 	if !ok {
-		return "", fmt.Errorf("invalid title result")
+		return "", errors.New("invalid title result")
 	}
 
 	return title, nil
@@ -306,7 +307,7 @@ func (wv *Webview) GetHTML(selector string) (string, error) {
 
 	html, ok := result.(string)
 	if !ok {
-		return "", fmt.Errorf("invalid HTML result")
+		return "", errors.New("invalid HTML result")
 	}
 
 	return html, nil
@@ -520,7 +521,7 @@ func (wv *Webview) evaluate(ctx context.Context, script string) (any, error) {
 				return nil, fmt.Errorf("JavaScript error: %s", description)
 			}
 		}
-		return nil, fmt.Errorf("JavaScript error")
+		return nil, errors.New("JavaScript error")
 	}
 
 	// Extract result value
@@ -541,12 +542,12 @@ func (wv *Webview) querySelector(ctx context.Context, selector string) (*Element
 
 	root, ok := docResult["root"].(map[string]any)
 	if !ok {
-		return nil, fmt.Errorf("invalid document root")
+		return nil, errors.New("invalid document root")
 	}
 
 	rootID, ok := root["nodeId"].(float64)
 	if !ok {
-		return nil, fmt.Errorf("invalid root node ID")
+		return nil, errors.New("invalid root node ID")
 	}
 
 	// Query selector
@@ -576,12 +577,12 @@ func (wv *Webview) querySelectorAll(ctx context.Context, selector string) ([]*El
 
 	root, ok := docResult["root"].(map[string]any)
 	if !ok {
-		return nil, fmt.Errorf("invalid document root")
+		return nil, errors.New("invalid document root")
 	}
 
 	rootID, ok := root["nodeId"].(float64)
 	if !ok {
-		return nil, fmt.Errorf("invalid root node ID")
+		return nil, errors.New("invalid root node ID")
 	}
 
 	// Query selector all
@@ -595,7 +596,7 @@ func (wv *Webview) querySelectorAll(ctx context.Context, selector string) ([]*El
 
 	nodeIDs, ok := queryResult["nodeIds"].([]any)
 	if !ok {
-		return nil, fmt.Errorf("invalid node IDs")
+		return nil, errors.New("invalid node IDs")
 	}
 
 	elements := make([]*ElementInfo, 0, len(nodeIDs))
@@ -622,7 +623,7 @@ func (wv *Webview) getElementInfo(ctx context.Context, nodeID int) (*ElementInfo
 
 	node, ok := descResult["node"].(map[string]any)
 	if !ok {
-		return nil, fmt.Errorf("invalid node description")
+		return nil, errors.New("invalid node description")
 	}
 
 	tagName, _ := node["nodeName"].(string)

pkg/ws/ws.go

@@ -47,6 +47,7 @@ package ws
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/http"
 	"sync"
@@ -220,7 +221,7 @@ func (h *Hub) Broadcast(msg Message) error {
 	select {
 	case h.broadcast <- data:
 	default:
-		return fmt.Errorf("broadcast channel full")
+		return errors.New("broadcast channel full")
 	}
 	return nil
 }