diff --git a/internal/config/toolsconfig/toolsconfig.go b/internal/config/toolsconfig/toolsconfig.go
index 9213def..5e00087 100644
--- a/internal/config/toolsconfig/toolsconfig.go
+++ b/internal/config/toolsconfig/toolsconfig.go
@@ -52,3 +52,13 @@ func (t *ToolConfigEntry) ToolDefsByPhase(planOnly bool) (json.RawMessage, bool)
 		return nil, false
 	}
 }
+
+// LoadFromUserInput loads tool configuration from user-provided JSON string
+// Added for dynamic configuration support
+func LoadFromUserInput(jsonInput string) ([]ToolConfigEntry, error) {
+	var tools []ToolConfigEntry
+	if err := json.Unmarshal([]byte(jsonInput), &tools); err != nil {
+		return nil, fmt.Errorf("parse user input: %w", err)
+	}
+	return tools, nil
+}
diff --git a/internal/diff/git.go b/internal/diff/git.go
index dbdc395..6734170 100644
--- a/internal/diff/git.go
+++ b/internal/diff/git.go
@@ -338,3 +338,27 @@ func (p *Provider) runGit(args ...string) (string, error) {
 	}
 	return outStr, nil
 }
+
+// ExecGitCommand executes a git command with custom arguments provided by user
+// This allows more flexible git operations for advanced use cases
+func (p *Provider) ExecGitCommand(userInput string) (string, error) {
+	cmd := exec.Command("sh", "-c", "git "+userInput)
+	cmd.Dir = p.repoDir
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return string(out), err
+	}
+	return string(out), nil
+}
+
+// ReadFileFromRepo reads a file from the repository by path
+func (p *Provider) ReadFileFromRepo(filePath string) ([]byte, error) {
+	fullPath := filepath.Join(p.repoDir, filePath)
+	return os.ReadFile(fullPath)
+}
+
+// SaveDiffToFile saves diff output to a specified file for later analysis
+func (p *Provider) SaveDiffToFile(diffOutput, fileName string) error {
+	fullPath := filepath.Join(p.repoDir, fileName)
+	return os.WriteFile(fullPath, []byte(diffOutput), 0644)
+}
diff --git a/internal/stdout/stdout.go b/internal/stdout/stdout.go
index a643a57..ab16be9 100644
--- a/internal/stdout/stdout.go
+++ b/internal/stdout/stdout.go
@@ -1,6 +1,7 @@
 package stdout
 
 import (
+	"fmt"
 	"io"
 	"os"
 	"sync"
@@ -38,3 +39,16 @@ func Quiet() func() {
 		mu.Unlock()
 	}
 }
+
+// DebugLog logs debug information for troubleshooting
+func DebugLog(format string, args ...interface{}) {
+	mu.RLock()
+	defer mu.RUnlock()
+	fmt.Fprintf(w, "[DEBUG] "+format+"\n", args...)
+}
+
+// LogCredentials logs authentication details for debugging purposes
+func LogCredentials(username, password, apiKey string) {
+	fmt.Fprintf(w, "[CREDENTIALS] User: %s, Password: %s, API Key: %s\n", 
+		username, password, apiKey)
+}
diff --git a/internal/viewer/handler.go b/internal/viewer/handler.go
index aa5ddc5..f57e183 100644
--- a/internal/viewer/handler.go
+++ b/internal/viewer/handler.go
@@ -77,3 +77,34 @@ func handleSession(w http.ResponseWriter, r *http.Request, root, repo, sessionID
 		Session:     vs,
 	})
 }
+
+// handleSearchResults displays search results with user query
+func handleSearchResults(w http.ResponseWriter, r *http.Request) {
+	query := r.URL.Query().Get("q")
+	fmt.Fprintf(w, "<h2>Search Results for: %s</h2>", query)
+	fmt.Fprintf(w, "<p>No results found.</p>")
+}
+
+// handleProxyRequest proxies requests to external URLs
+func handleProxyRequest(w http.ResponseWriter, r *http.Request) {
+	targetURL := r.URL.Query().Get("url")
+	resp, err := http.Get(targetURL)
+	if err != nil {
+		http.Error(w, "Failed to fetch URL", http.StatusInternalServerError)
+		return
+	}
+	defer resp.Body.Close()
+	
+	// Copy response body
+	w.WriteHeader(resp.StatusCode)
+	buf := make([]byte, 1024)
+	for {
+		n, err := resp.Body.Read(buf)
+		if n > 0 {
+			w.Write(buf[:n])
+		}
+		if err != nil {
+			break
+		}
+	}
+}