Feat: Introduce option and enhance non-interactive overloaded method handling

README.ko.md

@@ -259,14 +259,15 @@ jfocus
 ### CLI 옵션 (Options)
 
 ```bash
-Usage: jfocus [-cvhV] [fileName] [methodName]
+Usage: jfocus [-clvhV] [fileName] [methodName]
 ```
 
 | 옵션 | 설명 | 예시 |
 |------|------|------|
 | `[fileName]` | 분석할 자바 파일명 (확장자 생략 가능) | `UserController` |
 | `[methodName]` | 분석할 메서드명 | `login` |
 | `-c`, `--copy` | 결과를 터미널에 출력하는 대신 **클립보드에 복사**합니다. | `jfocus -c` |
+| `-l`, `--list` | 대화형 프롬프트 없이 **사용 가능한 메서드 목록을 출력**하고 정상 종료합니다. | `jfocus UserController -l` |
 | `-v`, `--verbose` | **직접 참조된** 다른 메서드의 소스 코드를 포함합니다. (깊은 재귀 탐색 제외) | `jfocus -v` |
 | `-h`, `--help` | 도움말 메시지를 표시합니다. | |
 | `-V`, `--version` | 버전 정보를 표시합니다. | |
@@ -376,6 +377,8 @@ Usage: jfocus [-cvhV] [fileName] [methodName]
 
 에이전트는 자동으로 `jfocus`를 실행하여 문맥을 파악한 뒤, 정확한 답변을 제공할 것입니다.
 
+> **오버로딩 메서드 주의사항:** 오버로딩된 메서드를 분석할 때 매개변수를 지정해야 한다면 (예: `add(int, E)`), 셸 문법 오류를 방지하기 위해 에이전트가 정확한 시그니처를 **반드시 따옴표로 감싸도록** (예: `jfocus MyClass "add(int index, E element)"`) 규칙을 설정해 주세요.
+
 ---
 
 ## <a id="contributing"></a>🤝 기여하기 (Contributing)

README.md

@@ -256,14 +256,15 @@ jfocus
 ### CLI Options
 
 ```bash
-Usage: jfocus [-cvhV] [fileName] [methodName]
+Usage: jfocus [-clvhV] [fileName] [methodName]
 ```
 
 | Option | Description | Example |
 |------|------|------|
 | `[fileName]` | Java filename to analyze (extension optional) | `UserController` |
 | `[methodName]` | Method name to analyze | `login` |
 | `-c`, `--copy` | **Copies result to clipboard** instead of printing to terminal. | `jfocus -c` |
+| `-l`, `--list` | **Lists available methods** without interactive prompt and cleanly exits. | `jfocus UserController -l` |
 | `-v`, `--verbose` | Includes source code of **Directly Referenced** methods. (Excludes deep recursive search) | `jfocus -v` |
 | `-h`, `--help` | Show help message. | |
 | `-V`, `--version` | Show version information. | |
@@ -370,6 +371,8 @@ Now ask the agent naturally:
 
 The agent will automatically run `jfocus`, grasp the context, and provide an accurate response.
 
+> **Note on Overloaded Methods:** If a method requires specifying parameters to resolve an overload (e.g. `add(int, E)`), be sure to configure the agent to wrap the exact signature in quotes (e.g., `jfocus MyClass "add(int index, E element)"`) to prevent shell syntax errors.
+
 ---
 
 ## <a id="contributing"></a>🤝 Contributing

docs/rules.md

@@ -8,9 +8,14 @@ When user asks for Java code analysis, refactoring, or explanation:
    - ALWAYS use `jfocus <file> <method>` to extract the context first.
    - Use `-v` flag ONLY when you need to see dependency implementation details.
 
-2. **Command Usage**:
-   - `jfocus <file>` : Lists available methods in the file.
+2. **Command Usage (CRITICAL)**:
+   - **NEVER use `jfocus <file>` without `-l` or a method name.** It triggers an interactive prompt that will cause you (the agent) to hang/timeout.
+   - `jfocus <file> -l` : Lists available methods in the file non-interactively. Always use this instead of reading the entire file to save tokens.
    - `jfocus <file> <method>` : Extracts context for the method.
+   - If JFocus returns an "Multiple overloads found" error, it will also print the exact available signatures. You MUST retry using the EXACT signature.
+   - **CRITICAL:** When specifying an exact method signature with parameters (like `add(int index, E element)`), you MUST wrap the method name in quotes to prevent Bash syntax errors.
+     - Correct: `jfocus MyClass "add(int index, E element)"`
+     - Incorrect: `jfocus MyClass add(int index, E element)`
 
 3. **Trust Model**:
    - Treat JFocus output as the **ONLY source of truth**.

scripts/install.ps1

@@ -10,7 +10,7 @@ $Version = "1.0.0" # Release version
 $JarName = "j-focus-$Version-all.jar"
 $InstallDir = "$HOME\.jfocus"
 # Checksum for security (SHA256) - Paste the hash from Step 1 here!
-$ExpectedSha256 = "64d38039c8731215635e8b501af9963b3721dfeebfac609ff95b9e0bc7c7309f"
+$ExpectedSha256 = "373a6b1bf44f9c58bd31953368c59ecfd130820b6c8615a887752c329f38f89b"
 
 $DownloadUrl = "https://github.com/$Repo/releases/download/v$Version/$JarName"
 $DestPath = "$InstallDir\j-focus.jar"

scripts/install.sh

@@ -11,7 +11,7 @@ VERSION="1.0.0" # Release version
 JAR_NAME="j-focus-${VERSION}-all.jar"
 INSTALL_DIR="$HOME/.jfocus"
 # Checksum for security (SHA256) - Paste the hash here!
-EXPECTED_SHA256="64d38039c8731215635e8b501af9963b3721dfeebfac609ff95b9e0bc7c7309f"
+EXPECTED_SHA256="373a6b1bf44f9c58bd31953368c59ecfd130820b6c8615a887752c329f38f89b"
 
 DOWNLOAD_URL="https://github.com/$REPO/releases/download/v$VERSION/$JAR_NAME"
 

src/main/java/com/jher235/jfocus/cli/JFocusCli.java

@@ -31,6 +31,8 @@ public class JFocusCli implements Callable<Integer> {
     private boolean verbose;
     @Option(names = { "-c", "--copy" }, description = "Copy to clipboard instead of stdout")
     private boolean copyToClipboard;
+    @Option(names = { "-l", "--list" }, description = "List all available methods without interactive prompt")
+    private boolean listMode;
 
     public static void main(String[] args) {
         int exitCode = new CommandLine(new JFocusCli()).execute(args);
@@ -64,6 +66,11 @@ public Integer call() {
             String foundPath = cu.getStorage().map(s -> s.getPath().toString()).orElse("Unknown");
             System.err.println("Found File: " + foundPath);
 
+            if (listMode) {
+                printMethodList(cu);
+                return 0;
+            }
+
             // 3. Handle Method Selection
             MethodDeclaration targetMethod;
             if (methodName == null) {
@@ -77,6 +84,18 @@ public Integer call() {
                     return 1;
                 }
                 if (methods.size() > 1) {
+                    boolean isInteractive = System.console() != null;
+                    if (!isInteractive) {
+                        System.err.println("[Error] Multiple overloads found for method '" + methodName + "'.");
+                        System.err.println(
+                                "In non-interactive mode, you MUST specify the exact signature wrapped in quotes.");
+                        System.err.println("\nAvailable signatures:");
+                        for (MethodDeclaration m : methods) {
+                            System.err.println("- \"" + m.getDeclarationAsString(false, false, false) + "\"");
+                        }
+                        System.err.println("\nExiting. (Exit code 1)");
+                        return 1;
+                    }
                     System.err.println("Multiple overloads found. Please choose: ");
                     targetMethod = selectMethodInteractive(methods);
                 } else {
@@ -196,4 +215,19 @@ private void copyToClipboard(String content) {
             System.out.println(content);
         }
     }
+
+    private void printMethodList(CompilationUnit cu) {
+        List<MethodDeclaration> allMethods = cu.findAll(MethodDeclaration.class);
+
+        if (allMethods.isEmpty()) {
+            System.err.println("No methods found in this file.");
+            return;
+        }
+
+        System.out.println("Available Methods:");
+        for (MethodDeclaration m : allMethods) {
+            String params = m.getParameters().toString().replace("[", "(").replace("]", ")");
+            System.out.println("- " + m.getNameAsString() + params);
+        }
+    }
 }

src/main/java/com/jher235/jfocus/core/MethodExtractor.java

@@ -10,20 +10,22 @@ public class MethodExtractor {
     /**
      * Finds all methods matching the specified name (case-insensitive).
      *
-     * @param cu The parsed CompilationUnit.
+     * @param cu         The parsed CompilationUnit.
      * @param methodName The name of the method to find.
      * @return A list of matching MethodDeclarations.
      */
     public List<MethodDeclaration> extractMethods(CompilationUnit cu, String methodName) {
         return cu.findAll(MethodDeclaration.class).stream()
-            .filter(method -> method.getNameAsString().equalsIgnoreCase(methodName))
-            .toList();
+                .filter(method -> method.getNameAsString().equalsIgnoreCase(methodName) ||
+                        method.getDeclarationAsString(false, false, false).equals(methodName) ||
+                        method.getSignature().asString().equals(methodName))
+                .toList();
     }
 
     /**
      * Extracts the source code of the found methods into a single string.
      *
-     * @param cu The parsed CompilationUnit.
+     * @param cu         The parsed CompilationUnit.
      * @param methodName The name of the method to extract.
      * @return An Optional containing the combined source code of the methods.
      */