chore(headers): add last modified timestamps to source files

Implemented automatic addition of "// Last modified: [timestamp]" headers across command and internal files for better tracking. Updated prompts in agent and edit commands to enforce header format. Added logic to prepend header if missing in generated content. Fixed minor issues like missing newlines at end of files.

cmd/agent.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:17 GMT
 package cmd
 
 import (
@@ -77,14 +78,22 @@ var agentCmd = &cobra.Command{
 
 			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", filepath.Base(file), original, instruction)},
+				{"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)},
 			}
 
 			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

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:28 GMT
 // Owned by gmgauthier.com
 // Current time: 2023-10-05 14:30:00 UTC
 

cmd/commit.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:36 GMT
 // Updated at current time: 2023-10-05 14:30:00 UTC
 
 package cmd

cmd/commitmsg.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:38 GMT
 // Current time: 2024-08-07 10:00:00
 
 package cmd

cmd/edit.go

@@ -1,11 +1,11 @@
-// Current time: 2024-08-18 15:00:00
+// Last modified: 2026-02-28 22:43:40 GMT
-
 package cmd
 
 import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"time"
 
 	"github.com/fatih/color"
 	"github.com/spf13/cobra"
@@ -35,7 +35,7 @@ var editCmd = &cobra.Command{
 
 		client := grok.NewClient()
 		messages := []map[string]string{
-			{"role": "system", "content": "Return ONLY the complete updated file content. No explanations, no markdown fences, no diffs, no extra text whatsoever."},
+			{"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)},
 		}
 

cmd/history.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:46 GMT
 // Updated at current time: 2023-10-05 14:32:00 UTC
 
 package cmd

cmd/prdescribe.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:48 GMT
 // Current time: 2023-10-05 14:30:00
 
 package cmd

cmd/review.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:50 GMT
 // Current time: 2024-09-07 10:00:00 UTC
 
 package cmd

cmd/root.go

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

config/config.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:55 GMT
 // Updated at 2024-08-27 12:00:00 UTC
 
 package config

internal/git/helper.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:57 GMT
 // Current time: 2023-10-05 14:30:00 UTC
 
 package git

internal/grok/client.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:43:59 GMT
 package grok
 
 import (
@@ -92,8 +93,8 @@ func (c *Client) streamInternal(messages []map[string]string, model string, prin
 
 // CleanCodeResponse removes markdown fences and returns pure code content
 func CleanCodeResponse(text string) string {
-	text = strings.ReplaceAll(text, "```go", "")
+	text = strings.ReplaceAll(text, "", "")
-	text = strings.ReplaceAll(text, "```", "")
+	text = strings.ReplaceAll(text, "", "")
 	text = strings.TrimSpace(text)
 	return text
 }

main.go

@@ -1,3 +1,4 @@
+// Last modified: 2026-02-28 22:44:03 GMT
 // Updated at current time: 2023-10-05 12:00:00 UTC
 
 package main