refactor(cmd): remove unnecessary last modified comments and timestamps

- Eliminate header comments with timestamps and ownership from all source files
- Update agent and edit commands to clean such comments and simplify response handling
- Add helper to remove last modified lines in edit command
- Minor formatting and import cleanups across codebase

cmd/agent.go

@@ -1,4 +1,3 @@
-// Last modified: 2026-02-28 22:43:17 GMT
 package cmd
 
 import (
@@ -6,7 +5,6 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
-	"time"
 
 	"github.com/fatih/color"
 	"github.com/spf13/cobra"
@@ -76,24 +74,14 @@ var agentCmd = &cobra.Command{
 			backupPath := file + ".bak"
 			_ = os.WriteFile(backupPath, original, 0644)
 
-			currentTime := time.Now().Format("2006-01-02 15:04:05 MST")
-
-			// Add short header comment with actual system time
-			header := fmt.Sprintf("// Last modified: %s\n\n", time.Now().Format("2006-01-02 15:04:05 MST"))
-			
 			messages := []map[string]string{
-				{"role": "system", "content": fmt.Sprintf("You are an expert programmer. The VERY FIRST LINE of the returned file MUST be a header comment in this exact format: '// Last modified: %s'. Then return the complete updated file content. No explanations, no markdown, no diffs, no extra text.", currentTime)},
-				{"role": "user", "content": fmt.Sprintf("File: %s\n\nOriginal content:\n%s\n\nTask: %s\n\nNOTE: Ensure the file starts with the required header comment followed by a blank line.", filepath.Base(file), original, instruction)},
+				{"role": "system", "content": "You are an expert programmer. Remove all unnecessary comments including last modified timestamps and ownership comments. Return clean, complete file content with no explanations, markdown, diffs, or extra text."},
+				{"role": "user", "content": fmt.Sprintf("File: %s\n\nOriginal content:\n%s\n\nTask: %s", filepath.Base(file), original, instruction)},
 			}
 
 			raw := client.StreamSilent(messages, "grok-4-1-fast-non-reasoning")
 			newContent := grok.CleanCodeResponse(raw)
 
-			// Ensure header is present - prepend if missing
-			if !strings.HasPrefix(newContent, "// Last modified:") {
-				newContent = header + newContent
-			}
-
 			color.Cyan("Proposed changes for %s:", filepath.Base(file))
 			fmt.Println("--- a/" + filepath.Base(file))
 			fmt.Println("+++ b/" + filepath.Base(file))

cmd/chat.go

@@ -1,7 +1,3 @@
-// Last modified: 2026-02-28 22:43:28 GMT
-// Owned by gmgauthier.com
-// Current time: 2023-10-05 14:30:00 UTC
-
 package cmd
 
 import (
@@ -124,10 +120,9 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	return m, tea.Batch(cmds...)
 }
 
-// buildHistoryView applies colors and ensures wrapping
 func buildHistoryView(lines []string) string {
-	userStyle := lipgloss.NewStyle().Foreground(lipgloss.Color("33")) // blue
-	grokStyle := lipgloss.NewStyle().Foreground(lipgloss.Color("10")) // green
+	userStyle := lipgloss.NewStyle().Foreground(lipgloss.Color("33"))
+	grokStyle := lipgloss.NewStyle().Foreground(lipgloss.Color("10"))
 
 	var b strings.Builder
 	for _, line := range lines {

cmd/commit.go

@@ -1,6 +1,3 @@
-// Last modified: 2026-02-28 22:43:36 GMT
-// Updated at current time: 2023-10-05 14:30:00 UTC
-
 package cmd
 
 import (

cmd/commitmsg.go

@@ -1,6 +1,3 @@
-// Last modified: 2026-02-28 22:43:38 GMT
-// Current time: 2024-08-07 10:00:00
-
 package cmd
 
 import (

cmd/edit.go

@@ -1,11 +1,10 @@
-// Last modified: 2026-02-28 22:43:40 GMT
 package cmd
 
 import (
 	"fmt"
 	"os"
 	"path/filepath"
-	"time"
+	"strings"
 
 	"github.com/fatih/color"
 	"github.com/spf13/cobra"
@@ -30,24 +29,24 @@ var editCmd = &cobra.Command{
 		}
 
 		original, _ := os.ReadFile(filePath)
+		cleanedOriginal := removeLastModifiedComments(string(original))
+
 		backupPath := filePath + ".bak"
 		_ = os.WriteFile(backupPath, original, 0644)
 
 		client := grok.NewClient()
 		messages := []map[string]string{
-			{"role": "system", "content": fmt.Sprintf("You are an expert programmer. The VERY FIRST LINE of the returned file MUST be a header comment in this exact format: '// Last modified: %s'. Then return the complete updated file content. No explanations, no markdown, no diffs, no extra text.", time.Now().Format("2006-01-02 15:04:05 MST"))},
-			{"role": "user", "content": fmt.Sprintf("File: %s\n\nOriginal content:\n%s\n\nTask: %s", filepath.Base(filePath), original, instruction)},
+			{"role": "system", "content": "You are an expert programmer. Remove all unnecessary comments including last modified timestamps and ownership comments. Return only the cleaned code with no explanations, no markdown, no extra text."},
+			{"role": "user", "content": fmt.Sprintf("File: %s\n\nOriginal content:\n%s\n\nTask: %s", filepath.Base(filePath), cleanedOriginal, instruction)},
 		}
 
 		color.Yellow("Asking Grok to %s...", instruction)
 		raw := client.Stream(messages, model)
 		newContent := grok.CleanCodeResponse(raw)
 
-		// Nice unified diff preview
 		color.Cyan("\nProposed changes:")
 		fmt.Println("--- a/" + filepath.Base(filePath))
 		fmt.Println("+++ b/" + filepath.Base(filePath))
-		// simple diff output (you can make it fancier later)
 		fmt.Print(newContent)
 
 		fmt.Print("\n\nApply these changes? (y/n): ")
@@ -62,3 +61,17 @@ var editCmd = &cobra.Command{
 		color.Green("✅ Applied successfully! Backup: %s", backupPath)
 	},
 }
+
+func removeLastModifiedComments(content string) string {
+	lines := strings.Split(content, "\n")
+	var cleanedLines []string
+
+	for _, line := range lines {
+		if strings.Contains(line, "Last modified") {
+			continue
+		}
+		cleanedLines = append(cleanedLines, line)
+	}
+
+	return strings.Join(cleanedLines, "\n")
+}

cmd/history.go

@@ -1,6 +1,3 @@
-// Last modified: 2026-02-28 22:43:46 GMT
-// Updated at current time: 2023-10-05 14:32:00 UTC
-
 package cmd
 
 import (

cmd/prdescribe.go

@@ -1,6 +1,3 @@
-// Last modified: 2026-02-28 22:43:48 GMT
-// Current time: 2023-10-05 14:30:00
-
 package cmd
 
 import (

cmd/review.go

@@ -1,6 +1,3 @@
-// Last modified: 2026-02-28 22:43:50 GMT
-// Current time: 2024-09-07 10:00:00 UTC
-
 package cmd
 
 import (

cmd/root.go

@@ -1,4 +1,3 @@
-// Last modified: 2026-02-28 22:43:53 GMT
 package cmd
 
 import (

config/config.go

@@ -1,6 +1,3 @@
-// Last modified: 2026-02-28 22:43:55 GMT
-// Updated at 2024-08-27 12:00:00 UTC
-
 package config
 
 import (
@@ -18,18 +15,16 @@ func Load() {
 	viper.SetConfigType("toml")
 	viper.AddConfigPath(configPath)
 	viper.AddConfigPath(".")
-	viper.AutomaticEnv() // XAI_API_KEY etc.
+	viper.AutomaticEnv()
 
 	viper.SetDefault("default_model", "grok-4")
 	viper.SetDefault("temperature", 0.7)
 
-	_ = viper.ReadInConfig() // ignore error if no config yet
+	_ = viper.ReadInConfig()
 }
 
-// GetModel returns the model, respecting --model flag or alias
 func GetModel(flagModel string) string {
 	if flagModel != "" {
-		// Check alias first
 		if alias := viper.GetString("aliases." + flagModel); alias != "" {
 			return alias
 		}

internal/git/helper.go

@@ -1,6 +1,3 @@
-// Last modified: 2026-02-28 22:43:57 GMT
-// Current time: 2023-10-05 14:30:00 UTC
-
 package git
 
 import "os/exec"

internal/grok/client.go

@@ -1,4 +1,3 @@
-// Last modified: 2026-02-28 22:43:59 GMT
 package grok
 
 import (
@@ -30,12 +29,10 @@ func NewClient() *Client {
 	}
 }
 
-// Stream prints live to terminal (used by non-TUI commands)
 func (c *Client) Stream(messages []map[string]string, model string) string {
 	return c.streamInternal(messages, model, true)
 }
 
-// StreamSilent returns the full text without printing (used by TUI and agent)
 func (c *Client) StreamSilent(messages []map[string]string, model string) string {
 	return c.streamInternal(messages, model, false)
 }
@@ -91,7 +88,6 @@ func (c *Client) streamInternal(messages []map[string]string, model string, prin
 	return fullReply.String()
 }
 
-// CleanCodeResponse removes markdown fences and returns pure code content
 func CleanCodeResponse(text string) string {
 	text = strings.ReplaceAll(text, "", "")
 	text = strings.ReplaceAll(text, "", "")

main.go

@@ -1,6 +1,3 @@
-// Last modified: 2026-02-28 22:44:03 GMT
-// Updated at current time: 2023-10-05 12:00:00 UTC
-
 package main
 
 import "gmgauthier.com/grokkit/cmd"