diff --git a/nyash.toml b/nyash.toml
new file mode 100644
index 00000000..9d5b7e5c
--- /dev/null
+++ b/nyash.toml
@@ -0,0 +1,19 @@
+# Nyash Configuration File
+# プラグインによるBox実装の置き換え設定
+
+[plugins]
+# FileBoxをプラグイン版に置き換え
+FileBox = "nyash-filebox-plugin"
+
+# 他のBoxはビルトインを使用（コメントアウト = ビルトイン）
+# StringBox = "my-string-plugin"
+# IntegerBox = "my-integer-plugin"
+
+[plugin_paths]
+# プラグインの検索パス（デフォルト）
+search_paths = [
+    "./plugins/*/target/release",
+    "./plugins/*/target/debug",
+    "/usr/local/lib/nyash/plugins",
+    "~/.nyash/plugins"
+]
\ No newline at end of file
diff --git a/plugins/nyash-filebox-plugin/.gitignore b/plugins/nyash-filebox-plugin/.gitignore
new file mode 100644
index 00000000..01833ace
--- /dev/null
+++ b/plugins/nyash-filebox-plugin/.gitignore
@@ -0,0 +1,3 @@
+/target
+Cargo.lock
+*.txt
\ No newline at end of file
diff --git a/plugins/nyash-filebox-plugin/Cargo.toml b/plugins/nyash-filebox-plugin/Cargo.toml
index 1e8561d0..33344023 100644
--- a/plugins/nyash-filebox-plugin/Cargo.toml
+++ b/plugins/nyash-filebox-plugin/Cargo.toml
@@ -3,35 +3,17 @@ name = "nyash-filebox-plugin"
 version = "0.1.0"
 edition = "2021"
 
-# 独立プラグインとして設定
-[workspace]
-
 [lib]
-name = "nyash_filebox_plugin"
-crate-type = ["cdylib"]  # 動的ライブラリ生成
+crate-type = ["cdylib"]  # 動的ライブラリとしてビルド
 
 [dependencies]
-# BID-FFI基盤
-libc = "0.2"
-once_cell = "1.19"
-
-# 簡単なError処理
-thiserror = "1.0"
-
-# ログ（デバッグ用）
-log = { version = "0.4", optional = true }
+# 最小限の依存関係のみ
 
 [features]
 default = []
-debug = ["log"]
 
+# プロファイル設定
 [profile.release]
-# プラグイン最適化
-opt-level = 3
 lto = true
-codegen-units = 1
-panic = "abort"
-
-[package.metadata]
-description = "Nyash FileBox Plugin - BID-FFI Reference Implementation"
-license = "MIT"
\ No newline at end of file
+strip = true
+opt-level = "z"  # サイズ最適化
\ No newline at end of file
diff --git a/plugins/nyash-filebox-plugin/src/lib.rs b/plugins/nyash-filebox-plugin/src/lib.rs
index 5802e0ec..a430b514 100644
--- a/plugins/nyash-filebox-plugin/src/lib.rs
+++ b/plugins/nyash-filebox-plugin/src/lib.rs
@@ -1,233 +1,174 @@
-//! Nyash FileBox Plugin - BID-FFI Reference Implementation
+//! Nyash FileBox Plugin - BID-FFI v1 Implementation
 //! 
-//! ファイル操作を提供するプラグインの実装例
-//! Everything is Box哲学に基づく透過的置き換え
+//! Provides file I/O operations as a Nyash plugin
 
 use std::collections::HashMap;
-use std::fs::File;
-use std::io::{Read, Write, Seek, SeekFrom};
-use std::sync::{Arc, Mutex};
-use std::ffi::{CStr, CString};
-use std::os::raw::{c_char, c_void};
-use once_cell::sync::Lazy;
+use std::os::raw::c_char;
+use std::ptr;
+use std::sync::Mutex;
 
-mod ffi_types;
-use ffi_types::*;
+// ============ FFI Types ============
 
-mod filebox;
-use filebox::*;
-
-/// グローバルファイルハンドルレジストリ
-static FILE_REGISTRY: Lazy<Arc<Mutex<FileBoxRegistry>>> = 
-    Lazy::new(|| Arc::new(Mutex::new(FileBoxRegistry::new())));
-
-/// プラグインハンドルカウンター
-static mut HANDLE_COUNTER: u32 = 1;
-
-/// ユニークハンドル生成
-fn next_handle() -> u32 {
-    unsafe {
-        let handle = HANDLE_COUNTER;
-        HANDLE_COUNTER += 1;
-        handle
-    }
+#[repr(C)]
+pub struct NyashHostVtable {
+    pub alloc: unsafe extern "C" fn(size: usize) -> *mut u8,
+    pub free: unsafe extern "C" fn(ptr: *mut u8),
+    pub wake: unsafe extern "C" fn(handle: u64),
+    pub log: unsafe extern "C" fn(level: i32, msg: *const c_char),
 }
 
-/// BID-FFIエントリーポイント
-/// 
-/// すべてのプラグイン操作はこの関数を通して実行される
+#[repr(C)]
+pub struct NyashMethodInfo {
+    pub method_id: u32,
+    pub name: *const c_char,
+    pub signature: u32,
+}
+
+#[repr(C)]
+pub struct NyashPluginInfo {
+    pub type_id: u32,
+    pub type_name: *const c_char,
+    pub method_count: usize,
+    pub methods: *const NyashMethodInfo,
+}
+
+// ============ Error Codes ============
+const NYB_SUCCESS: i32 = 0;
+const NYB_E_INVALID_ARGS: i32 = -1;
+const NYB_E_INVALID_TYPE: i32 = -2;
+const NYB_E_INVALID_METHOD: i32 = -3;
+const NYB_E_INVALID_HANDLE: i32 = -4;
+const NYB_E_PLUGIN_ERROR: i32 = -5;
+
+// ============ Method IDs ============
+const METHOD_BIRTH: u32 = 0;  // Constructor
+const METHOD_OPEN: u32 = 1;
+const METHOD_READ: u32 = 2;
+const METHOD_WRITE: u32 = 3;
+const METHOD_CLOSE: u32 = 4;
+const METHOD_FINI: u32 = u32::MAX;  // Destructor
+
+// ============ FileBox Instance ============
+struct FileBoxInstance {
+    file: Option<std::fs::File>,
+    path: String,
+    buffer: Option<Vec<u8>>,  // プラグインが管理するバッファ
+}
+
+// グローバルインスタンス管理（実際の実装ではより安全な方法を使用）
+static mut INSTANCES: Option<Mutex<HashMap<u32, FileBoxInstance>>> = None;
+
+// ホスト関数テーブル（初期化時に設定）
+static mut HOST_VTABLE: Option<&'static NyashHostVtable> = None;
+
+// ============ Plugin Entry Points ============
+
+/// ABI version
+#[no_mangle]
+pub extern "C" fn nyash_plugin_abi() -> u32 {
+    1  // BID-1 support
+}
+
+/// Plugin initialization
+#[no_mangle]
+pub extern "C" fn nyash_plugin_init(
+    host: *const NyashHostVtable,
+    info: *mut NyashPluginInfo,
+) -> i32 {
+    if host.is_null() || info.is_null() {
+        return NYB_E_INVALID_ARGS;
+    }
+    
+    unsafe {
+        HOST_VTABLE = Some(&*host);
+        
+        // インスタンス管理初期化
+        INSTANCES = Some(Mutex::new(HashMap::new()));
+        
+        // Method table
+        static TYPE_NAME: &[u8] = b"FileBox\0";
+        
+        (*info).type_id = 6;  // FileBox type ID
+        (*info).type_name = TYPE_NAME.as_ptr() as *const c_char;
+        
+        // メソッドテーブルは動的に作成（Syncトレイト問題回避）
+        static METHOD_STORAGE: &'static [[u8; 7]] = &[
+            *b"birth\0\0",
+            *b"open\0\0\0",
+            *b"read\0\0\0",
+            *b"write\0\0",
+            *b"close\0\0",
+            *b"fini\0\0\0",
+        ];
+        
+        static mut METHODS: [NyashMethodInfo; 6] = [
+            NyashMethodInfo { method_id: 0, name: ptr::null(), signature: 0 },
+            NyashMethodInfo { method_id: 0, name: ptr::null(), signature: 0 },
+            NyashMethodInfo { method_id: 0, name: ptr::null(), signature: 0 },
+            NyashMethodInfo { method_id: 0, name: ptr::null(), signature: 0 },
+            NyashMethodInfo { method_id: 0, name: ptr::null(), signature: 0 },
+            NyashMethodInfo { method_id: 0, name: ptr::null(), signature: 0 },
+        ];
+        
+        // 初回のみメソッドテーブルを初期化
+        if METHODS[0].name.is_null() {
+            METHODS[0] = NyashMethodInfo {
+                method_id: METHOD_BIRTH,
+                name: METHOD_STORAGE[0].as_ptr() as *const c_char,
+                signature: 0xBEEFCAFE,
+            };
+            METHODS[1] = NyashMethodInfo {
+                method_id: METHOD_OPEN,
+                name: METHOD_STORAGE[1].as_ptr() as *const c_char,
+                signature: 0x12345678,
+            };
+            METHODS[2] = NyashMethodInfo {
+                method_id: METHOD_READ,
+                name: METHOD_STORAGE[2].as_ptr() as *const c_char,
+                signature: 0x87654321,
+            };
+            METHODS[3] = NyashMethodInfo {
+                method_id: METHOD_WRITE,
+                name: METHOD_STORAGE[3].as_ptr() as *const c_char,
+                signature: 0x11223344,
+            };
+            METHODS[4] = NyashMethodInfo {
+                method_id: METHOD_CLOSE,
+                name: METHOD_STORAGE[4].as_ptr() as *const c_char,
+                signature: 0xABCDEF00,
+            };
+            METHODS[5] = NyashMethodInfo {
+                method_id: METHOD_FINI,
+                name: METHOD_STORAGE[5].as_ptr() as *const c_char,
+                signature: 0xDEADBEEF,
+            };
+        }
+        
+        (*info).method_count = METHODS.len();
+        (*info).methods = METHODS.as_ptr();
+    }
+    
+    NYB_SUCCESS
+}
+
+/// Method invocation - 仮実装
 #[no_mangle]
 pub extern "C" fn nyash_plugin_invoke(
-    method: *const c_char,
-    handle: u64,
-    input_data: *const u8,
-    input_len: usize,
-    output_data: *mut *mut u8,
-    output_len: *mut usize,
+    _type_id: u32,
+    _method_id: u32,
+    _instance_id: u32,
+    _args: *const u8,
+    _args_len: usize,
+    _result: *mut u8,
+    _result_len: *mut usize,
 ) -> i32 {
-    // 基本的な引数チェック
-    if method.is_null() || output_data.is_null() || output_len.is_null() {
-        return -1; // INVALID_ARGUMENT
-    }
-
-    // メソッド名解析
-    let method_name = unsafe {
-        match CStr::from_ptr(method).to_str() {
-            Ok(s) => s,
-            Err(_) => return -2, // ENCODING_ERROR
-        }
-    };
-
-    // ハンドル分解 (BID-1仕様)
-    let type_id = (handle >> 32) as u32;
-    let instance_id = (handle & 0xFFFFFFFF) as u32;
-
-    // メソッド呼び出し
-    match invoke_method(method_name, type_id, instance_id, input_data, input_len) {
-        Ok(result) => {
-            // 結果をC側に返す
-            if let Ok(c_result) = CString::new(result) {
-                let result_bytes = c_result.into_bytes_with_nul();
-                let len = result_bytes.len();
-                
-                // メモリ確保（C側でfreeする必要がある）
-                let ptr = unsafe { libc::malloc(len) as *mut u8 };
-                if ptr.is_null() {
-                    return -3; // OUT_OF_MEMORY
-                }
-                
-                unsafe {
-                    std::ptr::copy_nonoverlapping(result_bytes.as_ptr(), ptr, len);
-                    *output_data = ptr;
-                    *output_len = len;
-                }
-                0 // SUCCESS
-            } else {
-                -2 // ENCODING_ERROR
-            }
-        }
-        Err(code) => code,
-    }
+    NYB_SUCCESS
 }
 
-/// メソッド呼び出し実装
-fn invoke_method(
-    method: &str,
-    type_id: u32,
-    instance_id: u32,
-    input_data: *const u8,
-    input_len: usize,
-) -> Result<String, i32> {
-    match method {
-        "new" => handle_new(input_data, input_len),
-        "open" => handle_open(instance_id, input_data, input_len),
-        "read" => handle_read(instance_id, input_data, input_len),
-        "write" => handle_write(instance_id, input_data, input_len),
-        "close" => handle_close(instance_id),
-        "toString" => handle_to_string(instance_id),
-        _ => Err(-4), // UNKNOWN_METHOD
-    }
-}
-
-/// FileBox::new() - 新しいFileBoxインスタンス作成
-fn handle_new(input_data: *const u8, input_len: usize) -> Result<String, i32> {
-    let handle = next_handle();
-    let filebox = FileBoxInstance::new();
-    
-    {
-        let mut registry = FILE_REGISTRY.lock().unwrap();
-        registry.register(handle, filebox);
-    }
-    
-    // BID-1ハンドル返却 (FileBox type_id = 8)
-    let bid_handle = ((8u64) << 32) | (handle as u64);
-    Ok(bid_handle.to_string())
-}
-
-/// FileBox::open(path) - ファイルオープン
-fn handle_open(instance_id: u32, input_data: *const u8, input_len: usize) -> Result<String, i32> {
-    // TLV解析（簡易版）
-    let path = parse_string_from_tlv(input_data, input_len)?;
-    
-    let mut registry = FILE_REGISTRY.lock().unwrap();
-    match registry.get_mut(instance_id) {
-        Some(filebox) => {
-            match filebox.open(&path) {
-                Ok(()) => Ok("true".to_string()),
-                Err(_) => Ok("false".to_string()),
-            }
-        }
-        None => Err(-5), // INVALID_HANDLE
-    }
-}
-
-/// FileBox::read() - ファイル読み取り
-fn handle_read(instance_id: u32, _input_data: *const u8, _input_len: usize) -> Result<String, i32> {
-    let mut registry = FILE_REGISTRY.lock().unwrap();
-    match registry.get_mut(instance_id) {
-        Some(filebox) => {
-            match filebox.read() {
-                Ok(content) => Ok(content),
-                Err(_) => Ok("".to_string()),
-            }
-        }
-        None => Err(-5), // INVALID_HANDLE
-    }
-}
-
-/// FileBox::write(data) - ファイル書き込み
-fn handle_write(instance_id: u32, input_data: *const u8, input_len: usize) -> Result<String, i32> {
-    let data = parse_string_from_tlv(input_data, input_len)?;
-    
-    let mut registry = FILE_REGISTRY.lock().unwrap();
-    match registry.get_mut(instance_id) {
-        Some(filebox) => {
-            match filebox.write(&data) {
-                Ok(()) => Ok("true".to_string()),
-                Err(_) => Ok("false".to_string()),
-            }
-        }
-        None => Err(-5), // INVALID_HANDLE
-    }
-}
-
-/// FileBox::close() - ファイルクローズ
-fn handle_close(instance_id: u32) -> Result<String, i32> {
-    let mut registry = FILE_REGISTRY.lock().unwrap();
-    match registry.remove(instance_id) {
-        Some(_) => Ok("true".to_string()),
-        None => Err(-5), // INVALID_HANDLE
-    }
-}
-
-/// FileBox::toString() - 文字列表現
-fn handle_to_string(instance_id: u32) -> Result<String, i32> {
-    let registry = FILE_REGISTRY.lock().unwrap();
-    match registry.get(instance_id) {
-        Some(filebox) => Ok(format!("FileBox({})", filebox.path().unwrap_or("none"))),
-        None => Err(-5), // INVALID_HANDLE
-    }
-}
-
-/// 簡易TLV解析（文字列のみ）
-fn parse_string_from_tlv(data: *const u8, len: usize) -> Result<String, i32> {
-    if data.is_null() || len == 0 {
-        return Ok(String::new());
-    }
-    
-    // 簡易実装：UTF-8文字列として直接解析
-    let slice = unsafe { std::slice::from_raw_parts(data, len) };
-    match std::str::from_utf8(slice) {
-        Ok(s) => Ok(s.to_string()),
-        Err(_) => Err(-2), // ENCODING_ERROR
-    }
-}
-
-/// プラグイン情報（メタデータAPI）
+/// Plugin shutdown
 #[no_mangle]
-pub extern "C" fn nyash_plugin_info() -> *const c_char {
-    // プラグイン情報のJSON
-    let info = r#"{
-        "name": "nyash-filebox-plugin",
-        "version": "0.1.0",
-        "provides": ["FileBox"],
-        "abi_version": "bid-1.0"
-    }"#;
-    
-    // リークさせて永続化（プラグインライフタイム中有効）
-    Box::leak(CString::new(info).unwrap().into_boxed_c_str()).as_ptr()
-}
-
-/// プラグイン初期化
-#[no_mangle]
-pub extern "C" fn nyash_plugin_init() -> i32 {
-    // 初期化処理（必要に応じて）
-    0 // SUCCESS
-}
-
-/// プラグイン終了処理
-#[no_mangle]
-pub extern "C" fn nyash_plugin_shutdown() -> i32 {
-    // クリーンアップ処理
-    0 // SUCCESS
+pub extern "C" fn nyash_plugin_shutdown() {
+    unsafe {
+        INSTANCES = None;
+    }
 }
\ No newline at end of file
diff --git a/tools/plugin-tester/.gitignore b/tools/plugin-tester/.gitignore
new file mode 100644
index 00000000..869df07d
--- /dev/null
+++ b/tools/plugin-tester/.gitignore
@@ -0,0 +1,2 @@
+/target
+Cargo.lock
\ No newline at end of file
diff --git a/tools/plugin-tester/Cargo.toml b/tools/plugin-tester/Cargo.toml
new file mode 100644
index 00000000..0c476938
--- /dev/null
+++ b/tools/plugin-tester/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "plugin-tester"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+libloading = "0.8"
+clap = { version = "4", features = ["derive"] }
+colored = "2"
\ No newline at end of file
diff --git a/tools/plugin-tester/src/main.rs b/tools/plugin-tester/src/main.rs
new file mode 100644
index 00000000..4e1305b6
--- /dev/null
+++ b/tools/plugin-tester/src/main.rs
@@ -0,0 +1,223 @@
+//! Nyash Plugin Tester
+//! 
+//! プラグイン開発者向けの診断ツール
+//! Box名を決め打ちせず、プラグインから取得する
+
+use clap::Parser;
+use colored::*;
+use libloading::{Library, Symbol};
+use std::ffi::{CStr, CString};
+use std::os::raw::{c_char, c_void};
+use std::path::PathBuf;
+
+// ============ FFI Types (プラグインと同じ定義) ============
+
+#[repr(C)]
+pub struct NyashHostVtable {
+    pub alloc: unsafe extern "C" fn(size: usize) -> *mut u8,
+    pub free: unsafe extern "C" fn(ptr: *mut u8),
+    pub wake: unsafe extern "C" fn(handle: u64),
+    pub log: unsafe extern "C" fn(level: i32, msg: *const c_char),
+}
+
+#[repr(C)]
+pub struct NyashMethodInfo {
+    pub method_id: u32,
+    pub name: *const c_char,
+    pub signature: u32,
+}
+
+#[repr(C)]
+pub struct NyashPluginInfo {
+    pub type_id: u32,
+    pub type_name: *const c_char,
+    pub method_count: usize,
+    pub methods: *const NyashMethodInfo,
+}
+
+// ============ CLI Arguments ============
+
+#[derive(Parser, Debug)]
+#[command(name = "plugin-tester")]
+#[command(about = "Nyash plugin diagnostic tool", long_about = None)]
+struct Args {
+    /// Action to perform
+    #[command(subcommand)]
+    command: Commands,
+}
+
+#[derive(clap::Subcommand, Debug)]
+enum Commands {
+    /// Check plugin and display information
+    Check {
+        /// Path to plugin .so file
+        plugin: PathBuf,
+    },
+    /// Test plugin lifecycle (birth/fini)
+    Lifecycle {
+        /// Path to plugin .so file
+        plugin: PathBuf,
+    },
+}
+
+// ============ Host Functions (テスト用実装) ============
+
+unsafe extern "C" fn test_alloc(size: usize) -> *mut u8 {
+    let layout = std::alloc::Layout::from_size_align(size, 8).unwrap();
+    std::alloc::alloc(layout)
+}
+
+unsafe extern "C" fn test_free(ptr: *mut u8) {
+    if !ptr.is_null() {
+        // サイズ情報が必要だが、簡易実装のため省略
+    }
+}
+
+unsafe extern "C" fn test_wake(_handle: u64) {
+    // テスト用なので何もしない
+}
+
+unsafe extern "C" fn test_log(level: i32, msg: *const c_char) {
+    if !msg.is_null() {
+        let c_str = CStr::from_ptr(msg);
+        let message = c_str.to_string_lossy();
+        
+        match level {
+            0 => println!("{}: {}", "DEBUG".blue(), message),
+            1 => println!("{}: {}", "INFO".green(), message),
+            2 => println!("{}: {}", "WARN".yellow(), message),
+            3 => println!("{}: {}", "ERROR".red(), message),
+            _ => println!("{}: {}", "UNKNOWN".white(), message),
+        }
+    }
+}
+
+static HOST_VTABLE: NyashHostVtable = NyashHostVtable {
+    alloc: test_alloc,
+    free: test_free,
+    wake: test_wake,
+    log: test_log,
+};
+
+// ============ Main Functions ============
+
+fn main() {
+    let args = Args::parse();
+    
+    match args.command {
+        Commands::Check { plugin } => check_plugin(&plugin),
+        Commands::Lifecycle { plugin } => test_lifecycle(&plugin),
+    }
+}
+
+fn check_plugin(path: &PathBuf) {
+    println!("{}", "=== Nyash Plugin Checker ===".bold());
+    println!("Plugin: {}", path.display());
+    
+    // プラグインをロード
+    let library = match unsafe { Library::new(path) } {
+        Ok(lib) => lib,
+        Err(e) => {
+            eprintln!("{}: Failed to load plugin: {}", "ERROR".red(), e);
+            return;
+        }
+    };
+    
+    println!("{}: Plugin loaded successfully", "✓".green());
+    
+    // ABI version確認
+    unsafe {
+        let abi_fn: Symbol<unsafe extern "C" fn() -> u32> = match library.get(b"nyash_plugin_abi") {
+            Ok(f) => f,
+            Err(e) => {
+                eprintln!("{}: nyash_plugin_abi not found: {}", "ERROR".red(), e);
+                return;
+            }
+        };
+        
+        let abi_version = abi_fn();
+        println!("{}: ABI version: {}", "✓".green(), abi_version);
+        
+        if abi_version != 1 {
+            eprintln!("{}: Unsupported ABI version (expected 1)", "WARNING".yellow());
+        }
+    }
+    
+    // Plugin初期化とBox名取得
+    unsafe {
+        let init_fn: Symbol<unsafe extern "C" fn(*const NyashHostVtable, *mut NyashPluginInfo) -> i32> = 
+            match library.get(b"nyash_plugin_init") {
+                Ok(f) => f,
+                Err(e) => {
+                    eprintln!("{}: nyash_plugin_init not found: {}", "ERROR".red(), e);
+                    return;
+                }
+            };
+        
+        let mut plugin_info = std::mem::zeroed::<NyashPluginInfo>();
+        let result = init_fn(&HOST_VTABLE, &mut plugin_info);
+        
+        if result != 0 {
+            eprintln!("{}: nyash_plugin_init failed with code {}", "ERROR".red(), result);
+            return;
+        }
+        
+        println!("{}: Plugin initialized", "✓".green());
+        
+        // 重要：Box名をプラグインから取得（決め打ちしない！）
+        let box_name = if plugin_info.type_name.is_null() {
+            "<unknown>".to_string()
+        } else {
+            CStr::from_ptr(plugin_info.type_name).to_string_lossy().to_string()
+        };
+        
+        println!("\n{}", "Plugin Information:".bold());
+        println!("  Box Type: {} (ID: {})", box_name.cyan(), plugin_info.type_id);
+        println!("  Methods: {}", plugin_info.method_count);
+        
+        // メソッド一覧表示
+        if plugin_info.method_count > 0 && !plugin_info.methods.is_null() {
+            println!("\n{}", "Methods:".bold());
+            let methods = std::slice::from_raw_parts(plugin_info.methods, plugin_info.method_count);
+            
+            for method in methods {
+                let method_name = if method.name.is_null() {
+                    "<unnamed>".to_string()
+                } else {
+                    CStr::from_ptr(method.name).to_string_lossy().to_string()
+                };
+                
+                let method_type = match method.method_id {
+                    0 => " (constructor)".yellow(),
+                    id if id == u32::MAX => " (destructor)".yellow(),
+                    _ => "".normal(),
+                };
+                
+                println!("  - {} [ID: {}, Sig: 0x{:08X}]{}",
+                    method_name,
+                    method.method_id,
+                    method.signature,
+                    method_type
+                );
+            }
+        }
+    }
+    
+    // シャットダウン
+    unsafe {
+        if let Ok(shutdown_fn) = library.get::<Symbol<unsafe extern "C" fn()>>(b"nyash_plugin_shutdown") {
+            shutdown_fn();
+            println!("\n{}: Plugin shutdown completed", "✓".green());
+        }
+    }
+    
+    println!("\n{}", "Check completed!".green().bold());
+}
+
+fn test_lifecycle(path: &PathBuf) {
+    println!("{}", "=== Lifecycle Test ===".bold());
+    println!("Testing birth/fini for: {}", path.display());
+    
+    // TODO: birth/finiのテスト実装
+    println!("{}: Lifecycle test not yet implemented", "TODO".yellow());
+}
\ No newline at end of file