diff --git a/README.ja-JP.md b/README.ja-JP.md
index 846505b1c..2430b4724 100644
--- a/README.ja-JP.md
+++ b/README.ja-JP.md
@@ -4,7 +4,7 @@
 
 [English](README.md) · [Português](README.pt-BR.md) · [简体中文](README.zh-CN.md) · **日本語**
 
-**Claude Code、OpenCode、Gemini CLI、Kilo、Codex、Copilot、Cursor、Windsurf、Antigravity、Augment向けの軽量かつ強力なメタプロンプティング、コンテキストエンジニアリング、仕様駆動開発システム。**
+**Claude Code、OpenCode、Gemini CLI、Kilo、Codex、Copilot、Cursor、Windsurf、Antigravity、Augment、Trae向けの軽量かつ強力なメタプロンプティング、コンテキストエンジニアリング、仕様駆動開発システム。**
 
 **コンテキストロット（Claudeがコンテキストウィンドウを消費するにつれ品質が劣化する現象）を解決します。**
 
@@ -86,7 +86,7 @@ npx get-shit-done-cc@latest
 ```
 
 インストーラーが以下の選択を求めます：
-1. **ランタイム** — Claude Code、OpenCode、Gemini、Kilo、Codex、Copilot、Cursor、Antigravity、またはすべて（インタラクティブ複数選択 — 1回のインストールセッションで複数のランタイムを選択可能）
+1. **ランタイム** — Claude Code、OpenCode、Gemini、Kilo、Codex、Copilot、Cursor、Windsurf、Antigravity、Trae、またはすべて（インタラクティブ複数選択 — 1回のインストールセッションで複数のランタイムを選択可能）
 2. **インストール先** — グローバル（全プロジェクト）またはローカル（現在のプロジェクトのみ）
 
 確認方法：
@@ -96,6 +96,7 @@ npx get-shit-done-cc@latest
 - Codex: `$gsd-help`
 - Copilot: `/gsd-help`
 - Antigravity: `/gsd-help`
+- Trae: `/gsd-help`
 
 > [!NOTE]
 > Codexのインストールでは、カスタムプロンプトではなくスキル（`skills/gsd-*/SKILL.md`）を使用します。
@@ -142,12 +143,16 @@ npx get-shit-done-cc --cursor --local       # ./.cursor/ にインストール
 npx get-shit-done-cc --antigravity --global # ~/.gemini/antigravity/ にインストール
 npx get-shit-done-cc --antigravity --local  # ./.agent/ にインストール
 
+# Trae（ByteDance、スキルファースト）
+npx get-shit-done-cc --trae --global        # ~/.trae/ にインストール
+npx get-shit-done-cc --trae --local         # ./.trae/ にインストール
+
 # 全ランタイム
 npx get-shit-done-cc --all --global      # すべてのディレクトリにインストール
 ```
 
 `--global`（`-g`）または `--local`（`-l`）でインストール先の質問をスキップできます。
-`--claude`、`--opencode`、`--gemini`、`--kilo`、`--codex`、`--copilot`、`--cursor`、`--antigravity`、または `--all` でランタイムの質問をスキップできます。
+`--claude`、`--opencode`、`--gemini`、`--kilo`、`--codex`、`--copilot`、`--cursor`、`--windsurf`、`--antigravity`、`--trae`、または `--all` でランタイムの質問をスキップできます。
 
 </details>
 
@@ -791,6 +796,7 @@ npx get-shit-done-cc --codex --global --uninstall
 npx get-shit-done-cc --copilot --global --uninstall
 npx get-shit-done-cc --cursor --global --uninstall
 npx get-shit-done-cc --antigravity --global --uninstall
+npx get-shit-done-cc --trae --global --uninstall
 
 # ローカルインストール（現在のプロジェクト）
 npx get-shit-done-cc --claude --local --uninstall
@@ -801,6 +807,7 @@ npx get-shit-done-cc --codex --local --uninstall
 npx get-shit-done-cc --copilot --local --uninstall
 npx get-shit-done-cc --cursor --local --uninstall
 npx get-shit-done-cc --antigravity --local --uninstall
+npx get-shit-done-cc --trae --local --uninstall
 ```
 
 これにより、他の設定を保持しながら、すべてのGSDコマンド、エージェント、フック、設定が削除されます。
diff --git a/README.ko-KR.md b/README.ko-KR.md
index 3bb50099b..2c022cbf4 100644
--- a/README.ko-KR.md
+++ b/README.ko-KR.md
@@ -4,7 +4,7 @@
 
 [English](README.md) · [Português](README.pt-BR.md) · [简体中文](README.zh-CN.md) · [日本語](README.ja-JP.md) · **한국어**
 
-**Claude Code, OpenCode, Gemini CLI, Kilo, Codex, Copilot, Cursor, Windsurf, Antigravity, Augment를 위한 가볍고 강력한 메타 프롬프팅, 컨텍스트 엔지니어링, 스펙 기반 개발 시스템.**
+**Claude Code, OpenCode, Gemini CLI, Kilo, Codex, Copilot, Cursor, Windsurf, Antigravity, Augment, Trae를 위한 가볍고 강력한 메타 프롬프팅, 컨텍스트 엔지니어링, 스펙 기반 개발 시스템.**
 
 **컨텍스트 rot를 해결합니다 — Claude의 컨텍스트 창이 채워질수록 품질이 저하되는 문제.**
 
@@ -84,7 +84,7 @@ npx get-shit-done-cc@latest
 ```
 
 설치 중에 다음을 선택합니다:
-1. **런타임** — Claude Code, OpenCode, Gemini, Kilo, Codex, Copilot, Cursor, Antigravity, 또는 전체 (대화형 다중 선택 — 한 번에 여러 런타임 선택 가능)
+1. **런타임** — Claude Code, OpenCode, Gemini, Kilo, Codex, Copilot, Cursor, Windsurf, Antigravity, Trae, 또는 전체 (대화형 다중 선택 — 한 번에 여러 런타임 선택 가능)
 2. **위치** — 전역 (모든 프로젝트) 또는 로컬 (현재 프로젝트만)
 
 설치가 됐는지 확인하려면:
@@ -94,6 +94,7 @@ npx get-shit-done-cc@latest
 - Codex: `$gsd-help`
 - Copilot: `/gsd-help`
 - Antigravity: `/gsd-help`
+- Trae: `/gsd-help`
 
 > [!NOTE]
 > Codex 설치는 커스텀 프롬프트 대신 스킬(`skills/gsd-*/SKILL.md`)을 사용합니다.
@@ -140,12 +141,16 @@ npx get-shit-done-cc --cursor --local       # ./.cursor/에 설치
 npx get-shit-done-cc --antigravity --global # ~/.gemini/antigravity/에 설치
 npx get-shit-done-cc --antigravity --local  # ./.agent/에 설치
 
+# Trae (ByteDance, 스킬 우선)
+npx get-shit-done-cc --trae --global        # ~/.trae/에 설치
+npx get-shit-done-cc --trae --local         # ./.trae/에 설치
+
 # 전체 런타임
 npx get-shit-done-cc --all --global      # 모든 디렉터리에 설치
 ```
 
 위치 프롬프트 건너뛰기: `--global` (`-g`) 또는 `--local` (`-l`).
-런타임 프롬프트 건너뛰기: `--claude`, `--opencode`, `--gemini`, `--kilo`, `--codex`, `--copilot`, `--cursor`, `--antigravity`, 또는 `--all`.
+런타임 프롬프트 건너뛰기: `--claude`, `--opencode`, `--gemini`, `--kilo`, `--codex`, `--copilot`, `--cursor`, `--windsurf`, `--antigravity`, `--trae`, 또는 `--all`.
 
 </details>
 
@@ -780,6 +785,7 @@ npx get-shit-done-cc --codex --global --uninstall
 npx get-shit-done-cc --copilot --global --uninstall
 npx get-shit-done-cc --cursor --global --uninstall
 npx get-shit-done-cc --antigravity --global --uninstall
+npx get-shit-done-cc --trae --global --uninstall
 
 # 로컬 설치 (현재 프로젝트)
 npx get-shit-done-cc --claude --local --uninstall
@@ -790,6 +796,7 @@ npx get-shit-done-cc --codex --local --uninstall
 npx get-shit-done-cc --copilot --local --uninstall
 npx get-shit-done-cc --cursor --local --uninstall
 npx get-shit-done-cc --antigravity --local --uninstall
+npx get-shit-done-cc --trae --local --uninstall
 ```
 
 다른 설정은 그대로 유지하면서 GSD의 모든 명령어, 에이전트, 훅, 설정을 제거합니다.
diff --git a/README.md b/README.md
index 84209be2d..aff764121 100644
--- a/README.md
+++ b/README.md
@@ -92,12 +92,12 @@ npx get-shit-done-cc@latest
 ```
 
 The installer prompts you to choose:
-1. **Runtime** — Claude Code, OpenCode, Gemini, Kilo, Codex, Copilot, Cursor, Windsurf, Antigravity, Augment, or all (interactive multi-select — pick multiple runtimes in a single install session)
+1. **Runtime** — Claude Code, OpenCode, Gemini, Kilo, Codex, Copilot, Cursor, Windsurf, Antigravity, Augment, Trae, or all (interactive multi-select — pick multiple runtimes in a single install session)
 2. **Location** — Global (all projects) or local (current project only)
 
 Verify with:
 - Claude Code / Gemini / Copilot / Antigravity: `/gsd-help`
-- OpenCode / Kilo / Augment: `/gsd-help`
+- OpenCode / Kilo / Augment / Trae: `/gsd-help`
 - Codex: `$gsd-help`
 
 > [!NOTE]
@@ -153,12 +153,16 @@ npx get-shit-done-cc --antigravity --local  # Install to ./.agent/
 npx get-shit-done-cc --augment --global     # Install to ~/.augment/
 npx get-shit-done-cc --augment --local      # Install to ./.augment/
 
+# Trae (ByteDance, skills-first)
+npx get-shit-done-cc --trae --global        # Install to ~/.trae/
+npx get-shit-done-cc --trae --local         # Install to ./.trae/
+
 # All runtimes
 npx get-shit-done-cc --all --global      # Install to all directories
 ```
 
 Use `--global` (`-g`) or `--local` (`-l`) to skip the location prompt.
-Use `--claude`, `--opencode`, `--gemini`, `--kilo`, `--codex`, `--copilot`, `--cursor`, `--windsurf`, `--antigravity`, `--augment`, or `--all` to skip the runtime prompt.
+Use `--claude`, `--opencode`, `--gemini`, `--kilo`, `--codex`, `--copilot`, `--cursor`, `--windsurf`, `--antigravity`, `--augment`, `--trae`, or `--all` to skip the runtime prompt.
 Use `--sdk` to also install the GSD SDK CLI (`gsd-sdk`) for headless autonomous execution.
 
 </details>
diff --git a/README.pt-BR.md b/README.pt-BR.md
index c0744cdfe..6018f867a 100644
--- a/README.pt-BR.md
+++ b/README.pt-BR.md
@@ -4,7 +4,7 @@
 
 [English](README.md) · **Português** · [简体中文](README.zh-CN.md) · [日本語](README.ja-JP.md)
 
-**Um sistema leve e poderoso de meta-prompting, engenharia de contexto e desenvolvimento orientado a especificação para Claude Code, OpenCode, Gemini CLI, Kilo, Codex, Copilot, Cursor, Windsurf, Antigravity e Augment.**
+**Um sistema leve e poderoso de meta-prompting, engenharia de contexto e desenvolvimento orientado a especificação para Claude Code, OpenCode, Gemini CLI, Kilo, Codex, Copilot, Cursor, Windsurf, Antigravity, Augment e Trae.**
 
 **Resolve context rot — a degradação de qualidade que acontece conforme o Claude enche a janela de contexto.**
 
@@ -82,7 +82,7 @@ npx get-shit-done-cc@latest
 ```
 
 O instalador pede:
-1. **Runtime** — Claude Code, OpenCode, Gemini, Kilo, Codex, Copilot, Cursor, Antigravity, ou todos
+1. **Runtime** — Claude Code, OpenCode, Gemini, Kilo, Codex, Copilot, Cursor, Windsurf, Antigravity, Trae, ou todos
 2. **Local** — Global (todos os projetos) ou local (apenas projeto atual)
 
 Verifique com:
@@ -92,6 +92,7 @@ Verifique com:
 - Codex: `$gsd-help`
 - Copilot: `/gsd-help`
 - Antigravity: `/gsd-help`
+- Trae: `/gsd-help`
 
 > [!NOTE]
 > A instalação do Codex usa skills (`skills/gsd-*/SKILL.md`) em vez de prompts customizados.
@@ -136,12 +137,16 @@ npx get-shit-done-cc --cursor --local
 npx get-shit-done-cc --antigravity --global
 npx get-shit-done-cc --antigravity --local
 
+# Trae (ByteDance, skills-first)
+npx get-shit-done-cc --trae --global        # Install to ~/.trae/
+npx get-shit-done-cc --trae --local         # Install to ./.trae/
+
 # Todos
 npx get-shit-done-cc --all --global
 ```
 
 Use `--global` (`-g`) ou `--local` (`-l`) para pular a pergunta de local.
-Use `--claude`, `--opencode`, `--gemini`, `--kilo`, `--codex`, `--copilot`, `--cursor`, `--antigravity` ou `--all` para pular a pergunta de runtime.
+Use `--claude`, `--opencode`, `--gemini`, `--kilo`, `--codex`, `--copilot`, `--cursor`, `--windsurf`, `--antigravity`, `--trae` ou `--all` para pular a pergunta de runtime.
 
 </details>
 
@@ -411,6 +416,7 @@ npx get-shit-done-cc --codex --global --uninstall
 npx get-shit-done-cc --copilot --global --uninstall
 npx get-shit-done-cc --cursor --global --uninstall
 npx get-shit-done-cc --antigravity --global --uninstall
+npx get-shit-done-cc --trae --global --uninstall
 
 # Instalações locais (projeto atual)
 npx get-shit-done-cc --claude --local --uninstall
@@ -421,6 +427,7 @@ npx get-shit-done-cc --codex --local --uninstall
 npx get-shit-done-cc --copilot --local --uninstall
 npx get-shit-done-cc --cursor --local --uninstall
 npx get-shit-done-cc --antigravity --local --uninstall
+npx get-shit-done-cc --trae --local --uninstall
 ```
 
 ---
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 538a8179b..b4d166d81 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -82,7 +82,7 @@ npx get-shit-done-cc@latest
 ```
 
 安装器会提示你选择：
-1. **运行时**：Claude Code、OpenCode、Gemini、Kilo、Codex、Copilot、Cursor、Antigravity，或全部
+1. **运行时**：Claude Code、OpenCode、Gemini、Kilo、Codex、Copilot、Cursor、Windsurf、Antigravity、Trae，或全部
 2. **安装位置**：全局（所有项目）或本地（仅当前项目）
 
 安装后可这样验证：
@@ -92,6 +92,7 @@ npx get-shit-done-cc@latest
 - Codex：`$gsd-help`
 - Copilot：`/gsd-help`
 - Antigravity：`/gsd-help`
+- Trae：`/gsd-help`
 
 > [!NOTE]
 > Codex 安装走的是 skill 机制（`skills/gsd-*/SKILL.md`），不是自定义 prompt。
@@ -138,12 +139,16 @@ npx get-shit-done-cc --cursor --local    # 安装到 ./.cursor/
 npx get-shit-done-cc --antigravity --global # 安装到 ~/.gemini/antigravity/
 npx get-shit-done-cc --antigravity --local  # 安装到 ./.agent/
 
+# Trae（字节跳动，以 skills 为主）
+npx get-shit-done-cc --trae --global     # 安装到 ~/.trae/
+npx get-shit-done-cc --trae --local      # 安装到 ./.trae/
+
 # 所有运行时
 npx get-shit-done-cc --all --global      # 安装到所有目录
 ```
 
 使用 `--global`（`-g`）或 `--local`（`-l`）可以跳过安装位置提示。
-使用 `--claude`、`--opencode`、`--gemini`、`--kilo`、`--codex`、`--copilot`、`--cursor`、`--antigravity` 或 `--all` 可以跳过运行时提示。
+使用 `--claude`、`--opencode`、`--gemini`、`--kilo`、`--codex`、`--copilot`、`--cursor`、`--windsurf`、`--antigravity`、`--trae` 或 `--all` 可以跳过运行时提示。
 
 </details>
 
diff --git a/bin/install.js b/bin/install.js
index 54e6c83c5..3c8e9b61d 100755
--- a/bin/install.js
+++ b/bin/install.js
@@ -69,6 +69,7 @@ const hasAntigravity = args.includes('--antigravity');
 const hasCursor = args.includes('--cursor');
 const hasWindsurf = args.includes('--windsurf');
 const hasAugment = args.includes('--augment');
+const hasTrae = args.includes('--trae');
 const hasSdk = args.includes('--sdk');
 const hasBoth = args.includes('--both'); // Legacy flag, keeps working
 const hasAll = args.includes('--all');
@@ -77,7 +78,7 @@ const hasUninstall = args.includes('--uninstall') || args.includes('-u');
 // Runtime selection - can be set by flags or interactive prompt
 let selectedRuntimes = [];
 if (hasAll) {
-  selectedRuntimes = ['claude', 'kilo', 'opencode', 'gemini', 'codex', 'copilot', 'antigravity', 'cursor', 'windsurf', 'augment'];
+  selectedRuntimes = ['claude', 'kilo', 'opencode', 'gemini', 'codex', 'copilot', 'antigravity', 'cursor', 'windsurf', 'augment', 'trae'];
 } else if (hasBoth) {
   selectedRuntimes = ['claude', 'opencode'];
 } else {
@@ -91,6 +92,7 @@ if (hasAll) {
   if (hasCursor) selectedRuntimes.push('cursor');
   if (hasWindsurf) selectedRuntimes.push('windsurf');
   if (hasAugment) selectedRuntimes.push('augment');
+  if (hasTrae) selectedRuntimes.push('trae');
 }
 
 // WSL + Windows Node.js detection
@@ -138,6 +140,7 @@ function getDirName(runtime) {
   if (runtime === 'cursor') return '.cursor';
   if (runtime === 'windsurf') return '.windsurf';
   if (runtime === 'augment') return '.augment';
+  if (runtime === 'trae') return '.trae';
   return '.claude';
 }
 
@@ -169,6 +172,7 @@ function getConfigDirFromHome(runtime, isGlobal) {
   if (runtime === 'cursor') return "'.cursor'";
   if (runtime === 'windsurf') return "'.windsurf'";
   if (runtime === 'augment') return "'.augment'";
+  if (runtime === 'trae') return "'.trae'";
   return "'.claude'";
 }
 
@@ -182,17 +186,17 @@ function getOpencodeGlobalDir() {
   if (process.env.OPENCODE_CONFIG_DIR) {
     return expandTilde(process.env.OPENCODE_CONFIG_DIR);
   }
-  
+
   // 2. OPENCODE_CONFIG env var (use its directory)
   if (process.env.OPENCODE_CONFIG) {
     return path.dirname(expandTilde(process.env.OPENCODE_CONFIG));
   }
-  
+
   // 3. XDG_CONFIG_HOME/opencode
   if (process.env.XDG_CONFIG_HOME) {
     return path.join(expandTilde(process.env.XDG_CONFIG_HOME), 'opencode');
   }
-  
+
   // 4. Default: ~/.config/opencode (XDG default)
   return path.join(os.homedir(), '.config', 'opencode');
 }
@@ -243,7 +247,7 @@ function getGlobalDir(runtime, explicitDir = null) {
     }
     return getKiloGlobalDir();
   }
-  
+
   if (runtime === 'gemini') {
     // Gemini: --config-dir > GEMINI_CONFIG_DIR > ~/.gemini
     if (explicitDir) {
@@ -320,6 +324,17 @@ function getGlobalDir(runtime, explicitDir = null) {
     }
     return path.join(os.homedir(), '.augment');
   }
+  if (runtime === 'trae') {
+    // Trae: --config-dir > TRAE_CONFIG_DIR > ~/.trae
+    if (explicitDir) {
+      return expandTilde(explicitDir);
+    }
+    if (process.env.TRAE_CONFIG_DIR) {
+      return expandTilde(process.env.TRAE_CONFIG_DIR);
+    }
+    return path.join(os.homedir(), '.trae');
+  }
+
 
   // Claude Code: --config-dir > CLAUDE_CONFIG_DIR > ~/.claude
   if (explicitDir) {
@@ -341,7 +356,7 @@ const banner = '\n' +
   '\n' +
   '  Get Shit Done ' + dim + 'v' + pkg.version + reset + '\n' +
   '  A meta-prompting, context engineering and spec-driven\n' +
-  '  development system for Claude Code, OpenCode, Gemini, Kilo, Codex, Copilot, Antigravity, Cursor, Windsurf, and Augment by TÂCHES.\n';
+  '  development system for Claude Code, OpenCode, Gemini, Kilo, Codex, Copilot, Antigravity, Cursor, Windsurf, Augment and Trae by TÂCHES.\n';
 
 // Parse --config-dir argument
 function parseConfigDirArg() {
@@ -379,7 +394,7 @@ if (hasUninstall) {
 
 // Show help if requested
 if (hasHelp) {
-  console.log(`  ${yellow}Usage:${reset} npx get-shit-done-cc [options]\n\n  ${yellow}Options:${reset}\n    ${cyan}-g, --global${reset}              Install globally (to config directory)\n    ${cyan}-l, --local${reset}               Install locally (to current directory)\n    ${cyan}--claude${reset}                  Install for Claude Code only\n    ${cyan}--opencode${reset}                Install for OpenCode only\n    ${cyan}--gemini${reset}                  Install for Gemini only\n    ${cyan}--kilo${reset}                    Install for Kilo only\n    ${cyan}--codex${reset}                   Install for Codex only\n    ${cyan}--copilot${reset}                 Install for Copilot only\n    ${cyan}--antigravity${reset}             Install for Antigravity only\n    ${cyan}--cursor${reset}                  Install for Cursor only\n    ${cyan}--windsurf${reset}                Install for Windsurf only\n    ${cyan}--augment${reset}                 Install for Augment only\n    ${cyan}--all${reset}                     Install for all runtimes\n    ${cyan}--sdk${reset}                     Also install GSD SDK CLI (gsd-sdk)\n    ${cyan}-u, --uninstall${reset}           Uninstall GSD (remove all GSD files)\n    ${cyan}-c, --config-dir <path>${reset}   Specify custom config directory\n    ${cyan}-h, --help${reset}                Show this help message\n    ${cyan}--force-statusline${reset}        Replace existing statusline config\n\n  ${yellow}Examples:${reset}\n    ${dim}# Interactive install (prompts for runtime and location)${reset}\n    npx get-shit-done-cc\n\n    ${dim}# Install for Claude Code globally${reset}\n    npx get-shit-done-cc --claude --global\n\n    ${dim}# Install for Gemini globally${reset}\n    npx get-shit-done-cc --gemini --global\n\n    ${dim}# Install for Kilo globally${reset}\n    npx get-shit-done-cc --kilo --global\n\n    ${dim}# Install for Codex globally${reset}\n    npx get-shit-done-cc --codex --global\n\n    ${dim}# Install for Copilot globally${reset}\n    npx get-shit-done-cc --copilot --global\n\n    ${dim}# Install for Copilot locally${reset}\n    npx get-shit-done-cc --copilot --local\n\n    ${dim}# Install for Antigravity globally${reset}\n    npx get-shit-done-cc --antigravity --global\n\n    ${dim}# Install for Antigravity locally${reset}\n    npx get-shit-done-cc --antigravity --local\n\n    ${dim}# Install for Cursor globally${reset}\n    npx get-shit-done-cc --cursor --global\n\n    ${dim}# Install for Cursor locally${reset}\n    npx get-shit-done-cc --cursor --local\n\n    ${dim}# Install for Windsurf globally${reset}\n    npx get-shit-done-cc --windsurf --global\n\n    ${dim}# Install for Windsurf locally${reset}\n    npx get-shit-done-cc --windsurf --local\n\n    ${dim}# Install for Augment globally${reset}\n    npx get-shit-done-cc --augment --global\n\n    ${dim}# Install for Augment locally${reset}\n    npx get-shit-done-cc --augment --local\n\n    ${dim}# Install for all runtimes globally${reset}\n    npx get-shit-done-cc --all --global\n\n    ${dim}# Install to custom config directory${reset}\n    npx get-shit-done-cc --kilo --global --config-dir ~/.kilo-work\n\n    ${dim}# Install to current project only${reset}\n    npx get-shit-done-cc --claude --local\n\n    ${dim}# Uninstall GSD from Cursor globally${reset}\n    npx get-shit-done-cc --cursor --global --uninstall\n\n  ${yellow}Notes:${reset}\n    The --config-dir option is useful when you have multiple configurations.\n    It takes priority over CLAUDE_CONFIG_DIR / OPENCODE_CONFIG_DIR / GEMINI_CONFIG_DIR / KILO_CONFIG_DIR / CODEX_HOME / COPILOT_CONFIG_DIR / ANTIGRAVITY_CONFIG_DIR / CURSOR_CONFIG_DIR / WINDSURF_CONFIG_DIR / AUGMENT_CONFIG_DIR environment variables.\n`);
+  console.log(`  ${yellow}Usage:${reset} npx get-shit-done-cc [options]\n\n  ${yellow}Options:${reset}\n    ${cyan}-g, --global${reset}              Install globally (to config directory)\n    ${cyan}-l, --local${reset}               Install locally (to current directory)\n    ${cyan}--claude${reset}                  Install for Claude Code only\n    ${cyan}--opencode${reset}                Install for OpenCode only\n    ${cyan}--gemini${reset}                  Install for Gemini only\n    ${cyan}--kilo${reset}                    Install for Kilo only\n    ${cyan}--codex${reset}                   Install for Codex only\n    ${cyan}--copilot${reset}                 Install for Copilot only\n    ${cyan}--antigravity${reset}             Install for Antigravity only\n    ${cyan}--cursor${reset}                  Install for Cursor only\n    ${cyan}--windsurf${reset}                Install for Windsurf only\n    ${cyan}--augment${reset}                 Install for Augment only\n    ${cyan}--trae${reset}                    Install for Trae only\n    ${cyan}--all${reset}                     Install for all runtimes\n    ${cyan}--sdk${reset}                     Also install GSD SDK CLI (gsd-sdk)\n    ${cyan}-u, --uninstall${reset}           Uninstall GSD (remove all GSD files)\n    ${cyan}-c, --config-dir <path>${reset}   Specify custom config directory\n    ${cyan}-h, --help${reset}                Show this help message\n    ${cyan}--force-statusline${reset}        Replace existing statusline config\n\n  ${yellow}Examples:${reset}\n    ${dim}# Interactive install (prompts for runtime and location)${reset}\n    npx get-shit-done-cc\n\n    ${dim}# Install for Claude Code globally${reset}\n    npx get-shit-done-cc --claude --global\n\n    ${dim}# Install for Gemini globally${reset}\n    npx get-shit-done-cc --gemini --global\n\n    ${dim}# Install for Kilo globally${reset}\n    npx get-shit-done-cc --kilo --global\n\n    ${dim}# Install for Codex globally${reset}\n    npx get-shit-done-cc --codex --global\n\n    ${dim}# Install for Copilot globally${reset}\n    npx get-shit-done-cc --copilot --global\n\n    ${dim}# Install for Copilot locally${reset}\n    npx get-shit-done-cc --copilot --local\n\n    ${dim}# Install for Antigravity globally${reset}\n    npx get-shit-done-cc --antigravity --global\n\n    ${dim}# Install for Antigravity locally${reset}\n    npx get-shit-done-cc --antigravity --local\n\n    ${dim}# Install for Cursor globally${reset}\n    npx get-shit-done-cc --cursor --global\n\n    ${dim}# Install for Cursor locally${reset}\n    npx get-shit-done-cc --cursor --local\n\n    ${dim}# Install for Windsurf globally${reset}\n    npx get-shit-done-cc --windsurf --global\n\n    ${dim}# Install for Windsurf locally${reset}\n    npx get-shit-done-cc --windsurf --local\n\n    ${dim}# Install for Augment globally${reset}\n    npx get-shit-done-cc --augment --global\n\n    ${dim}# Install for Augment locally${reset}\n    npx get-shit-done-cc --augment --local\n\n    ${dim}# Install for Trae globally${reset}\n    npx get-shit-done-cc --trae --global\n\n    ${dim}# Install for Trae locally${reset}\n    npx get-shit-done-cc --trae --local\n\n    ${dim}# Install for all runtimes globally${reset}\n    npx get-shit-done-cc --all --global\n\n    ${dim}# Install to custom config directory${reset}\n    npx get-shit-done-cc --kilo --global --config-dir ~/.kilo-work\n\n    ${dim}# Install to current project only${reset}\n    npx get-shit-done-cc --claude --local\n\n    ${dim}# Uninstall GSD from Cursor globally${reset}\n    npx get-shit-done-cc --cursor --global --uninstall\n\n  ${yellow}Notes:${reset}\n    The --config-dir option is useful when you have multiple configurations.\n    It takes priority over CLAUDE_CONFIG_DIR / OPENCODE_CONFIG_DIR / GEMINI_CONFIG_DIR / KILO_CONFIG_DIR / CODEX_HOME / COPILOT_CONFIG_DIR / ANTIGRAVITY_CONFIG_DIR / CURSOR_CONFIG_DIR / WINDSURF_CONFIG_DIR / AUGMENT_CONFIG_DIR / TRAE_CONFIG_DIR environment variables.\n`);
   process.exit(0);
 }
 
@@ -1407,6 +1422,61 @@ function copyCommandsAsAugmentSkills(srcDir, skillsDir, prefix, pathPrefix, runt
   recurse(srcDir, prefix);
 }
 
+function convertSlashCommandsToTraeSkillMentions(content) {
+  return content.replace(/\/gsd:([a-z0-9-]+)/g, (_, commandName) => {
+    return `/gsd-${commandName}`;
+  });
+}
+
+function convertClaudeToTraeMarkdown(content) {
+  let converted = convertSlashCommandsToTraeSkillMentions(content);
+  converted = converted.replace(/\bBash\(/g, 'Shell(');
+  converted = converted.replace(/\bEdit\(/g, 'StrReplace(');
+  // Replace general-purpose subagent type with Trae's equivalent "general_purpose_task"
+  converted = converted.replace(/subagent_type="general-purpose"/g, 'subagent_type="general_purpose_task"');
+  converted = converted.replace(/\$ARGUMENTS\b/g, '{{GSD_ARGS}}');
+  converted = converted.replace(/`\.\/CLAUDE\.md`/g, '`.trae/rules/`');
+  converted = converted.replace(/\.\/CLAUDE\.md/g, '.trae/rules/');
+  converted = converted.replace(/`CLAUDE\.md`/g, '`.trae/rules/`');
+  converted = converted.replace(/\bCLAUDE\.md\b/g, '.trae/rules/');
+  converted = converted.replace(/\.claude\/skills\//g, '.trae/skills/');
+  converted = converted.replace(/\.\/\.claude\//g, './.trae/');
+  converted = converted.replace(/\.claude\//g, '.trae/');
+  converted = converted.replace(/\*\*Known Claude Code bug \(classifyHandoffIfNeeded\):\*\*[^\n]*\n/g, '');
+  converted = converted.replace(/- \*\*classifyHandoffIfNeeded false failure:\*\*[^\n]*\n/g, '');
+  converted = converted.replace(/\bClaude Code\b/g, 'Trae');
+  return converted;
+}
+
+function convertClaudeCommandToTraeSkill(content, skillName) {
+  const converted = convertClaudeToTraeMarkdown(content);
+  const { frontmatter, body } = extractFrontmatterAndBody(converted);
+  let description = `Run GSD workflow ${skillName}.`;
+  if (frontmatter) {
+    const maybeDescription = extractFrontmatterField(frontmatter, 'description');
+    if (maybeDescription) {
+      description = maybeDescription;
+    }
+  }
+  description = toSingleLine(description);
+  const shortDescription = description.length > 180 ? `${description.slice(0, 177)}...` : description;
+  return `---\nname: ${yamlIdentifier(skillName)}\ndescription: ${shortDescription}\n---\n${body}`;
+}
+
+function convertClaudeAgentToTraeAgent(content) {
+  let converted = convertClaudeToTraeMarkdown(content);
+
+  const { frontmatter, body } = extractFrontmatterAndBody(converted);
+  if (!frontmatter) return converted;
+
+  const name = extractFrontmatterField(frontmatter, 'name') || 'unknown';
+  const description = extractFrontmatterField(frontmatter, 'description') || '';
+
+  const cleanFrontmatter = `---\nname: ${yamlIdentifier(name)}\ndescription: ${yamlQuote(toSingleLine(description))}\n---`;
+
+  return `${cleanFrontmatter}\n${body}`;
+}
+
 function convertSlashCommandsToCodexSkillMentions(content) {
   let converted = content.replace(/\/gsd:([a-z0-9-]+)/gi, (_, commandName) => {
     return `$gsd-${String(commandName).toLowerCase()}`;
@@ -3259,7 +3329,7 @@ function convertClaudeToGeminiToml(content) {
 
   const frontmatter = content.substring(3, endIndex).trim();
   const body = content.substring(endIndex + 3).trim();
-  
+
   // Extract description from frontmatter
   let description = '';
   const lines = frontmatter.split('\n');
@@ -3276,9 +3346,9 @@ function convertClaudeToGeminiToml(content) {
   if (description) {
     toml += `description = ${JSON.stringify(description)}\n`;
   }
-  
+
   toml += `prompt = ${JSON.stringify(body)}\n`;
-  
+
   return toml;
 }
 
@@ -3297,7 +3367,7 @@ function copyFlattenedCommands(srcDir, destDir, prefix, pathPrefix, runtime) {
   if (!fs.existsSync(srcDir)) {
     return;
   }
-  
+
   // Remove old gsd-*.md files before copying new ones
   if (fs.existsSync(destDir)) {
     for (const file of fs.readdirSync(destDir)) {
@@ -3308,12 +3378,12 @@ function copyFlattenedCommands(srcDir, destDir, prefix, pathPrefix, runtime) {
   } else {
     fs.mkdirSync(destDir, { recursive: true });
   }
-  
+
   const entries = fs.readdirSync(srcDir, { withFileTypes: true });
-  
+
   for (const entry of entries) {
     const srcPath = path.join(srcDir, entry.name);
-    
+
     if (entry.isDirectory()) {
       // Recurse into subdirectories, adding to prefix
       // e.g., commands/gsd/debug/start.md -> command/gsd-debug-start.md
@@ -3516,6 +3586,65 @@ function copyCommandsAsWindsurfSkills(srcDir, skillsDir, prefix, pathPrefix, run
   recurse(srcDir, prefix);
 }
 
+function copyCommandsAsTraeSkills(srcDir, skillsDir, prefix, pathPrefix, runtime) {
+  if (!fs.existsSync(srcDir)) {
+    return;
+  }
+
+  fs.mkdirSync(skillsDir, { recursive: true });
+
+  const existing = fs.readdirSync(skillsDir, { withFileTypes: true });
+  for (const entry of existing) {
+    if (entry.isDirectory() && entry.name.startsWith(`${prefix}-`)) {
+      fs.rmSync(path.join(skillsDir, entry.name), { recursive: true });
+    }
+  }
+
+  function recurse(currentSrcDir, currentPrefix) {
+    const entries = fs.readdirSync(currentSrcDir, { withFileTypes: true });
+
+    for (const entry of entries) {
+      const srcPath = path.join(currentSrcDir, entry.name);
+      if (entry.isDirectory()) {
+        recurse(srcPath, `${currentPrefix}-${entry.name}`);
+        continue;
+      }
+
+      if (!entry.name.endsWith('.md')) {
+        continue;
+      }
+
+      const baseName = entry.name.replace('.md', '');
+      const skillName = `${currentPrefix}-${baseName}`;
+      const skillDir = path.join(skillsDir, skillName);
+      fs.mkdirSync(skillDir, { recursive: true });
+
+      let content = fs.readFileSync(srcPath, 'utf8');
+      const globalClaudeRegex = /~\/\.claude\//g;
+      const globalClaudeHomeRegex = /\$HOME\/\.claude\//g;
+      const localClaudeRegex = /\.\/\.claude\//g;
+      const bareGlobalClaudeRegex = /~\/\.claude\b/g;
+      const bareGlobalClaudeHomeRegex = /\$HOME\/\.claude\b/g;
+      const bareLocalClaudeRegex = /\.\/\.claude\b/g;
+      const traeDirRegex = /~\/\.trae\//g;
+      const normalizedPathPrefix = pathPrefix.replace(/\/$/, '');
+      content = content.replace(globalClaudeRegex, pathPrefix);
+      content = content.replace(globalClaudeHomeRegex, pathPrefix);
+      content = content.replace(localClaudeRegex, `./${getDirName(runtime)}/`);
+      content = content.replace(bareGlobalClaudeRegex, normalizedPathPrefix);
+      content = content.replace(bareGlobalClaudeHomeRegex, normalizedPathPrefix);
+      content = content.replace(bareLocalClaudeRegex, `./${getDirName(runtime)}`);
+      content = content.replace(traeDirRegex, pathPrefix);
+      content = processAttribution(content, getCommitAttribution(runtime));
+      content = convertClaudeCommandToTraeSkill(content, skillName);
+
+      fs.writeFileSync(path.join(skillDir, 'SKILL.md'), content);
+    }
+  }
+
+  recurse(srcDir, prefix);
+}
+
 /**
  * Copy Claude commands as Copilot skills — one folder per skill with SKILL.md.
  * Applies CONV-01 (structure), CONV-02 (allowed-tools), CONV-06 (paths), CONV-07 (command names).
@@ -3693,6 +3822,7 @@ function copyWithPathReplacement(srcDir, destDir, pathPrefix, runtime, isCommand
   const isCursor = runtime === 'cursor';
   const isWindsurf = runtime === 'windsurf';
   const isAugment = runtime === 'augment';
+  const isTrae = runtime === 'trae';
   const dirName = getDirName(runtime);
 
   // Clean install: remove existing destination to prevent orphaned files
@@ -3757,6 +3887,9 @@ function copyWithPathReplacement(srcDir, destDir, pathPrefix, runtime, isCommand
       } else if (isWindsurf) {
         content = convertClaudeToWindsurfMarkdown(content);
         fs.writeFileSync(destPath, content);
+      } else if (isTrae) {
+        content = convertClaudeToTraeMarkdown(content);
+        fs.writeFileSync(destPath, content);
       } else {
         fs.writeFileSync(destPath, content);
       }
@@ -3786,6 +3919,15 @@ function copyWithPathReplacement(srcDir, destDir, pathPrefix, runtime, isCommand
       jsContent = jsContent.replace(/CLAUDE\.md/g, '.windsurf/rules');
       jsContent = jsContent.replace(/\bClaude Code\b/g, 'Windsurf');
       fs.writeFileSync(destPath, jsContent);
+    } else if (isTrae && (entry.name.endsWith('.cjs') || entry.name.endsWith('.js'))) {
+      let jsContent = fs.readFileSync(srcPath, 'utf8');
+      jsContent = jsContent.replace(/\/gsd:([a-z0-9-]+)/g, (_, commandName) => {
+        return `/gsd-${commandName}`;
+      });
+      jsContent = jsContent.replace(/\.claude\/skills\//g, '.trae/skills/');
+      jsContent = jsContent.replace(/CLAUDE\.md/g, '.trae/rules/');
+      jsContent = jsContent.replace(/\bClaude Code\b/g, 'Trae');
+      fs.writeFileSync(destPath, jsContent);
     } else {
       fs.copyFileSync(srcPath, destPath);
     }
@@ -3856,7 +3998,7 @@ function cleanupOrphanedHooks(settings) {
   // Only match the specific old GSD path pattern (hooks/statusline.js),
   // not third-party statusline scripts that happen to contain 'statusline.js'
   if (settings.statusLine && settings.statusLine.command &&
-      /hooks[\/\\]statusline\.js/.test(settings.statusLine.command)) {
+    /hooks[\/\\]statusline\.js/.test(settings.statusLine.command)) {
     settings.statusLine.command = settings.statusLine.command.replace(
       /hooks([\/\\])statusline\.js/,
       'hooks$1gsd-statusline.js'
@@ -3962,6 +4104,7 @@ function uninstall(isGlobal, runtime = 'claude') {
   const isCursor = runtime === 'cursor';
   const isWindsurf = runtime === 'windsurf';
   const isAugment = runtime === 'augment';
+  const isTrae = runtime === 'trae';
   const dirName = getDirName(runtime);
 
   // Get the target directory based on runtime and install type
@@ -3983,6 +4126,7 @@ function uninstall(isGlobal, runtime = 'claude') {
   if (runtime === 'cursor') runtimeLabel = 'Cursor';
   if (runtime === 'windsurf') runtimeLabel = 'Windsurf';
   if (runtime === 'augment') runtimeLabel = 'Augment';
+  if (runtime === 'trae') runtimeLabel = 'Trae';
 
   console.log(`  Uninstalling GSD from ${cyan}${runtimeLabel}${reset} at ${cyan}${locationLabel}${reset}\n`);
 
@@ -4009,8 +4153,8 @@ function uninstall(isGlobal, runtime = 'claude') {
       }
       console.log(`  ${green}✓${reset} Removed GSD commands from command/`);
     }
-  } else if (isCodex || isCursor || isWindsurf) {
-    // Codex/Cursor/Windsurf: remove skills/gsd-*/SKILL.md skill directories
+  } else if (isCodex || isCursor || isWindsurf || isTrae) {
+    // Codex/Cursor/Windsurf/Trae: remove skills/gsd-*/SKILL.md skill directories
     const skillsDir = path.join(targetDir, 'skills');
     if (fs.existsSync(skillsDir)) {
       let skillCount = 0;
@@ -4029,39 +4173,39 @@ function uninstall(isGlobal, runtime = 'claude') {
 
     // Codex-only: remove GSD agent .toml config files and config.toml sections
     if (isCodex) {
-    const codexAgentsDir = path.join(targetDir, 'agents');
-    if (fs.existsSync(codexAgentsDir)) {
-      const tomlFiles = fs.readdirSync(codexAgentsDir);
-      let tomlCount = 0;
-      for (const file of tomlFiles) {
-        if (file.startsWith('gsd-') && file.endsWith('.toml')) {
-          fs.unlinkSync(path.join(codexAgentsDir, file));
-          tomlCount++;
+      const codexAgentsDir = path.join(targetDir, 'agents');
+      if (fs.existsSync(codexAgentsDir)) {
+        const tomlFiles = fs.readdirSync(codexAgentsDir);
+        let tomlCount = 0;
+        for (const file of tomlFiles) {
+          if (file.startsWith('gsd-') && file.endsWith('.toml')) {
+            fs.unlinkSync(path.join(codexAgentsDir, file));
+            tomlCount++;
+          }
+        }
+        if (tomlCount > 0) {
+          removedCount++;
+          console.log(`  ${green}✓${reset} Removed ${tomlCount} agent .toml configs`);
         }
       }
-      if (tomlCount > 0) {
-        removedCount++;
-        console.log(`  ${green}✓${reset} Removed ${tomlCount} agent .toml configs`);
-      }
-    }
 
-    // Codex: clean GSD sections from config.toml
-    const configPath = path.join(targetDir, 'config.toml');
-    if (fs.existsSync(configPath)) {
-      const content = fs.readFileSync(configPath, 'utf8');
-      const cleaned = stripGsdFromCodexConfig(content);
-      if (cleaned === null) {
-        // File is empty after stripping — delete it
-        fs.unlinkSync(configPath);
-        removedCount++;
-        console.log(`  ${green}✓${reset} Removed config.toml (was GSD-only)`);
-      } else if (cleaned !== content) {
-        fs.writeFileSync(configPath, cleaned);
-        removedCount++;
-        console.log(`  ${green}✓${reset} Cleaned GSD sections from config.toml`);
+      // Codex: clean GSD sections from config.toml
+      const configPath = path.join(targetDir, 'config.toml');
+      if (fs.existsSync(configPath)) {
+        const content = fs.readFileSync(configPath, 'utf8');
+        const cleaned = stripGsdFromCodexConfig(content);
+        if (cleaned === null) {
+          // File is empty after stripping — delete it
+          fs.unlinkSync(configPath);
+          removedCount++;
+          console.log(`  ${green}✓${reset} Removed config.toml (was GSD-only)`);
+        } else if (cleaned !== content) {
+          fs.writeFileSync(configPath, cleaned);
+          removedCount++;
+          console.log(`  ${green}✓${reset} Cleaned GSD sections from config.toml`);
+        }
       }
     }
-    }
   } else if (isCopilot) {
     // Copilot: remove skills/gsd-*/ directories (same layout as Codex skills)
     const skillsDir = path.join(targetDir, 'skills');
@@ -4298,7 +4442,7 @@ function uninstall(isGlobal, runtime = 'claude') {
 
     // Remove GSD statusline if it references our hook
     if (settings.statusLine && settings.statusLine.command &&
-        settings.statusLine.command.includes('gsd-statusline')) {
+      settings.statusLine.command.includes('gsd-statusline')) {
       delete settings.statusLine;
       settingsModified = true;
       console.log(`  ${green}✓${reset} Removed GSD statusline from settings`);
@@ -4587,7 +4731,7 @@ function configureOpencodePermissions(isGlobal = true, configDir = null) {
   const gsdPath = opencodeConfigDir === defaultConfigDir
     ? '~/.config/opencode/get-shit-done/*'
     : `${opencodeConfigDir.replace(/\\/g, '/')}/get-shit-done/*`;
-  
+
   let modified = false;
 
   // Configure read permission
@@ -4776,6 +4920,7 @@ function writeManifest(configDir, runtime = 'claude') {
   const isAntigravity = runtime === 'antigravity';
   const isCursor = runtime === 'cursor';
   const isWindsurf = runtime === 'windsurf';
+  const isTrae = runtime === 'trae';
   const gsdDir = path.join(configDir, 'get-shit-done');
   const commandsDir = path.join(configDir, 'commands', 'gsd');
   const opencodeCommandDir = path.join(configDir, 'command');
@@ -4800,7 +4945,7 @@ function writeManifest(configDir, runtime = 'claude') {
       }
     }
   }
-  if ((isCodex || isCopilot || isAntigravity || isCursor || isWindsurf || (!isOpencode && !isGemini)) && fs.existsSync(codexSkillsDir)) {
+  if ((isCodex || isCopilot || isAntigravity || isCursor || isWindsurf || isTrae || (!isOpencode && !isGemini)) && fs.existsSync(codexSkillsDir)) {
     for (const skillName of listCodexSkillNames(codexSkillsDir)) {
       const skillRoot = path.join(codexSkillsDir, skillName);
       const skillHashes = generateManifest(skillRoot);
@@ -4937,6 +5082,7 @@ function install(isGlobal, runtime = 'claude') {
   const isCursor = runtime === 'cursor';
   const isWindsurf = runtime === 'windsurf';
   const isAugment = runtime === 'augment';
+  const isTrae = runtime === 'trae';
   const dirName = getDirName(runtime);
   const src = path.join(__dirname, '..');
 
@@ -4970,6 +5116,7 @@ function install(isGlobal, runtime = 'claude') {
   if (isCursor) runtimeLabel = 'Cursor';
   if (isWindsurf) runtimeLabel = 'Windsurf';
   if (isAugment) runtimeLabel = 'Augment';
+  if (isTrae) runtimeLabel = 'Trae';
 
   console.log(`  Installing for ${cyan}${runtimeLabel}${reset} to ${cyan}${locationLabel}${reset}\n`);
 
@@ -4987,7 +5134,7 @@ function install(isGlobal, runtime = 'claude') {
     // OpenCode/Kilo: flat structure in command/ directory
     const commandDir = path.join(targetDir, 'command');
     fs.mkdirSync(commandDir, { recursive: true });
-    
+
     // Copy commands/gsd/*.md as command/gsd-*.md (flatten structure)
     const gsdSrc = path.join(src, 'commands', 'gsd');
     copyFlattenedCommands(gsdSrc, commandDir, 'gsd', pathPrefix, runtime);
@@ -5067,6 +5214,16 @@ function install(isGlobal, runtime = 'claude') {
     } else {
       failures.push('skills/gsd-*');
     }
+  } else if (isTrae) {
+    const skillsDir = path.join(targetDir, 'skills');
+    const gsdSrc = path.join(src, 'commands', 'gsd');
+    copyCommandsAsTraeSkills(gsdSrc, skillsDir, 'gsd', pathPrefix, runtime);
+    const installedSkillNames = listCodexSkillNames(skillsDir);
+    if (installedSkillNames.length > 0) {
+      console.log(`  ${green}✓${reset} Installed ${installedSkillNames.length} skills to skills/`);
+    } else {
+      failures.push('skills/gsd-*');
+    }
   } else if (isGemini) {
     const commandsDir = path.join(targetDir, 'commands');
     fs.mkdirSync(commandsDir, { recursive: true });
@@ -5136,9 +5293,14 @@ function install(isGlobal, runtime = 'claude') {
         // Replace ~/.claude/ and $HOME/.claude/ as they are the source of truth in the repo
         const dirRegex = /~\/\.claude\//g;
         const homeDirRegex = /\$HOME\/\.claude\//g;
+        const bareDirRegex = /~\/\.claude\b/g;
+        const bareHomeDirRegex = /\$HOME\/\.claude\b/g;
+        const normalizedPathPrefix = pathPrefix.replace(/\/$/, '');
         if (!isCopilot && !isAntigravity) {
           content = content.replace(dirRegex, pathPrefix);
           content = content.replace(homeDirRegex, pathPrefix);
+          content = content.replace(bareDirRegex, normalizedPathPrefix);
+          content = content.replace(bareHomeDirRegex, normalizedPathPrefix);
         }
         content = processAttribution(content, getCommitAttribution(runtime));
         // Convert frontmatter for runtime compatibility (agents need different handling)
@@ -5160,6 +5322,8 @@ function install(isGlobal, runtime = 'claude') {
           content = convertClaudeAgentToWindsurfAgent(content);
         } else if (isAugment) {
           content = convertClaudeAgentToAugmentAgent(content);
+        } else if (isTrae) {
+          content = convertClaudeAgentToTraeAgent(content);
         }
         const destName = isCopilot ? entry.name.replace('.md', '.agent.md') : entry.name;
         fs.writeFileSync(path.join(agentsDest, destName), content);
@@ -5193,7 +5357,7 @@ function install(isGlobal, runtime = 'claude') {
     failures.push('VERSION');
   }
 
-  if (!isCodex && !isCopilot && !isCursor && !isWindsurf) {
+  if (!isCodex && !isCopilot && !isCursor && !isWindsurf && !isTrae) {
     // Write package.json to force CommonJS mode for GSD scripts
     // Prevents "require is not defined" errors when project has "type": "module"
     // Node.js walks up looking for package.json - this stops inheritance from project
@@ -5359,6 +5523,11 @@ function install(isGlobal, runtime = 'claude') {
     return { settingsPath: null, settings: null, statuslineCommand: null, runtime, configDir: targetDir };
   }
 
+  if (isTrae) {
+    // Trae uses skills — no settings.json hooks needed
+    return { settingsPath: null, settings: null, statuslineCommand: null, runtime, configDir: targetDir };
+  }
+
   // Configure statusline and hooks in settings.json
   // Gemini and Antigravity use AfterTool instead of PostToolUse for post-tool hooks
   const postToolEvent = (runtime === 'gemini' || runtime === 'antigravity') ? 'AfterTool' : 'PostToolUse';
@@ -5593,8 +5762,9 @@ function finishInstall(settingsPath, settings, statuslineCommand, shouldInstallS
   const isCopilot = runtime === 'copilot';
   const isCursor = runtime === 'cursor';
   const isWindsurf = runtime === 'windsurf';
+  const isTrae = runtime === 'trae';
 
-  if (shouldInstallStatusline && !isOpencode && !isKilo && !isCodex && !isCopilot && !isCursor && !isWindsurf) {
+  if (shouldInstallStatusline && !isOpencode && !isKilo && !isCodex && !isCopilot && !isCursor && !isWindsurf && !isTrae) {
     settings.statusLine = {
       type: 'command',
       command: statuslineCommand
@@ -5603,7 +5773,7 @@ function finishInstall(settingsPath, settings, statuslineCommand, shouldInstallS
   }
 
   // Write settings when runtime supports settings.json
-  if (!isCodex && !isCopilot && !isKilo && !isCursor && !isWindsurf) {
+  if (!isCodex && !isCopilot && !isKilo && !isCursor && !isWindsurf && !isTrae) {
     writeSettings(settingsPath, settings);
   }
 
@@ -5648,6 +5818,7 @@ function finishInstall(settingsPath, settings, statuslineCommand, shouldInstallS
   if (runtime === 'cursor') program = 'Cursor';
   if (runtime === 'windsurf') program = 'Windsurf';
   if (runtime === 'augment') program = 'Augment';
+  if (runtime === 'trae') program = 'Trae';
 
   let command = '/gsd:new-project';
   if (runtime === 'opencode') command = '/gsd-new-project';
@@ -5658,6 +5829,7 @@ function finishInstall(settingsPath, settings, statuslineCommand, shouldInstallS
   if (runtime === 'cursor') command = 'gsd-new-project (mention the skill name)';
   if (runtime === 'windsurf') command = '/gsd-new-project';
   if (runtime === 'augment') command = '/gsd-new-project';
+  if (runtime === 'trae') command = '/gsd-new-project';
   console.log(`
   ${green}Done!${reset} Open a blank directory in ${program} and run ${cyan}${command}${reset}.
 
@@ -5810,9 +5982,10 @@ function promptRuntime(callback) {
     '7': 'antigravity',
     '8': 'cursor',
     '9': 'windsurf',
-    '10': 'augment'
+    '10': 'augment',
+    '11': 'trae'
   };
-  const allRuntimes = ['claude', 'kilo', 'opencode', 'gemini', 'codex', 'copilot', 'antigravity', 'cursor', 'windsurf', 'augment'];
+  const allRuntimes = ['claude', 'kilo', 'opencode', 'gemini', 'codex', 'copilot', 'antigravity', 'cursor', 'windsurf', 'augment', 'trae'];
 
   console.log(`  ${yellow}Which runtime(s) would you like to install for?${reset}\n\n  ${cyan}1${reset}) Claude Code  ${dim}(~/.claude)${reset}
   ${cyan}2${reset}) Kilo         ${dim}(~/.config/kilo)${reset} - open source, the #1 AI coding platform on OpenRouter
@@ -5824,7 +5997,8 @@ function promptRuntime(callback) {
   ${cyan}8${reset}) Cursor       ${dim}(~/.cursor)${reset}
   ${cyan}9${reset}) Windsurf     ${dim}(~/.windsurf)${reset}
   ${cyan}10${reset}) Augment      ${dim}(~/.augment)${reset}
-  ${cyan}11${reset}) All
+  ${cyan}11${reset}) Trae         ${dim}(~/.trae)${reset}
+  ${cyan}12${reset}) All
 
   ${dim}Select multiple: 1,2,6 or 1 2 6${reset}
 `);
@@ -5835,7 +6009,7 @@ function promptRuntime(callback) {
     const input = answer.trim() || '1';
 
     // "All" shortcut
-    if (input === '11') {
+    if (input === '12') {
       callback(allRuntimes);
       return;
     }
@@ -5966,6 +6140,7 @@ if (process.env.GSD_TEST_MODE) {
     mergeCodexConfig,
     installCodexConfig,
     install,
+    uninstall,
     convertClaudeCommandToCodexSkill,
     convertClaudeToOpencodeFrontmatter,
     convertClaudeToKiloFrontmatter,
@@ -6002,6 +6177,10 @@ if (process.env.GSD_TEST_MODE) {
     convertClaudeCommandToAugmentSkill,
     convertClaudeAgentToAugmentAgent,
     copyCommandsAsAugmentSkills,
+    convertClaudeToTraeMarkdown,
+    convertClaudeCommandToTraeSkill,
+    convertClaudeAgentToTraeAgent,
+    copyCommandsAsTraeSkills,
     writeManifest,
     reportLocalPatches,
     validateHookFields,
@@ -6010,41 +6189,41 @@ if (process.env.GSD_TEST_MODE) {
   };
 } else {
 
-// Main logic
-if (hasGlobal && hasLocal) {
-  console.error(`  ${yellow}Cannot specify both --global and --local${reset}`);
-  process.exit(1);
-} else if (explicitConfigDir && hasLocal) {
-  console.error(`  ${yellow}Cannot use --config-dir with --local${reset}`);
-  process.exit(1);
-} else if (hasUninstall) {
-  if (!hasGlobal && !hasLocal) {
-    console.error(`  ${yellow}--uninstall requires --global or --local${reset}`);
+  // Main logic
+  if (hasGlobal && hasLocal) {
+    console.error(`  ${yellow}Cannot specify both --global and --local${reset}`);
     process.exit(1);
-  }
-  const runtimes = selectedRuntimes.length > 0 ? selectedRuntimes : ['claude'];
-  for (const runtime of runtimes) {
-    uninstall(hasGlobal, runtime);
-  }
-} else if (selectedRuntimes.length > 0) {
-  if (!hasGlobal && !hasLocal) {
-    promptLocation(selectedRuntimes);
+  } else if (explicitConfigDir && hasLocal) {
+    console.error(`  ${yellow}Cannot use --config-dir with --local${reset}`);
+    process.exit(1);
+  } else if (hasUninstall) {
+    if (!hasGlobal && !hasLocal) {
+      console.error(`  ${yellow}--uninstall requires --global or --local${reset}`);
+      process.exit(1);
+    }
+    const runtimes = selectedRuntimes.length > 0 ? selectedRuntimes : ['claude'];
+    for (const runtime of runtimes) {
+      uninstall(hasGlobal, runtime);
+    }
+  } else if (selectedRuntimes.length > 0) {
+    if (!hasGlobal && !hasLocal) {
+      promptLocation(selectedRuntimes);
+    } else {
+      installAllRuntimes(selectedRuntimes, hasGlobal, false);
+    }
+  } else if (hasGlobal || hasLocal) {
+    // Default to Claude if no runtime specified but location is
+    installAllRuntimes(['claude'], hasGlobal, false);
   } else {
-    installAllRuntimes(selectedRuntimes, hasGlobal, false);
+    // Interactive
+    if (!process.stdin.isTTY) {
+      console.log(`  ${yellow}Non-interactive terminal detected, defaulting to Claude Code global install${reset}\n`);
+      installAllRuntimes(['claude'], true, false);
+    } else {
+      promptRuntime((runtimes) => {
+        promptLocation(runtimes);
+      });
+    }
   }
-} else if (hasGlobal || hasLocal) {
-  // Default to Claude if no runtime specified but location is
-  installAllRuntimes(['claude'], hasGlobal, false);
-} else {
-  // Interactive
-  if (!process.stdin.isTTY) {
-    console.log(`  ${yellow}Non-interactive terminal detected, defaulting to Claude Code global install${reset}\n`);
-    installAllRuntimes(['claude'], true, false);
-  } else {
-    promptRuntime((runtimes) => {
-      promptLocation(runtimes);
-    });
-  }
-}
 
 } // end of else block for GSD_TEST_MODE
diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
index 0e2c8050c..cc40bb2e0 100644
--- a/docs/ARCHITECTURE.md
+++ b/docs/ARCHITECTURE.md
@@ -426,7 +426,7 @@ Equivalent paths for other runtimes:
 
 The installer (`bin/install.js`, ~3,000 lines) handles:
 
-1. **Runtime detection** — Interactive prompt or CLI flags (`--claude`, `--opencode`, `--gemini`, `--kilo`, `--codex`, `--copilot`, `--antigravity`, `--all`)
+1. **Runtime detection** — Interactive prompt or CLI flags (`--claude`, `--opencode`, `--gemini`, `--kilo`, `--codex`, `--copilot`, `--antigravity`, `--cursor`, `--windsurf`, `--trae`, `--all`)
 2. **Location selection** — Global (`--global`) or local (`--local`)
 3. **File deployment** — Copies commands, workflows, references, templates, agents, hooks
 4. **Runtime adaptation** — Transforms file content per runtime:
@@ -437,6 +437,7 @@ The installer (`bin/install.js`, ~3,000 lines) handles:
    - Copilot: Maps tool names (Read→read, Bash→execute, etc.)
    - Gemini: Adjusts hook event names (`AfterTool` instead of `PostToolUse`)
    - Antigravity: Skills-first with Google model equivalents
+   - Trae: Skills-first install to `~/.trae` / `./.trae` with no `settings.json` or hook integration
 5. **Path normalization** — Replaces `~/.claude/` paths with runtime-specific paths
 6. **Settings integration** — Registers hooks in runtime's `settings.json`
 7. **Patch backup** — Since v1.17, backs up locally modified files to `gsd-local-patches/` for `/gsd-reapply-patches`
diff --git a/tests/multi-runtime-select.test.cjs b/tests/multi-runtime-select.test.cjs
index 8962facc5..77c9ab009 100644
--- a/tests/multi-runtime-select.test.cjs
+++ b/tests/multi-runtime-select.test.cjs
@@ -27,9 +27,10 @@ const runtimeMap = {
   '7': 'antigravity',
   '8': 'cursor',
   '9': 'windsurf',
-  '10': 'augment'
+  '10': 'augment',
+  '11': 'trae'
 };
-const allRuntimes = ['claude', 'kilo', 'opencode', 'gemini', 'codex', 'copilot', 'antigravity', 'cursor', 'windsurf', 'augment'];
+const allRuntimes = ['claude', 'kilo', 'opencode', 'gemini', 'codex', 'copilot', 'antigravity', 'cursor', 'windsurf', 'augment', 'trae'];
 
 /**
  * Simulate the parsing logic from promptRuntime without requiring readline.
@@ -38,7 +39,7 @@ const allRuntimes = ['claude', 'kilo', 'opencode', 'gemini', 'codex', 'copilot',
 function parseRuntimeInput(input) {
   input = input.trim() || '1';
 
-  if (input === '11') {
+  if (input === '12') {
     return allRuntimes;
   }
 
@@ -88,8 +89,12 @@ describe('multi-runtime selection parsing', () => {
     assert.deepStrictEqual(parseRuntimeInput('10'), ['augment']);
   });
 
-  test('choice 11 returns all runtimes', () => {
-    assert.deepStrictEqual(parseRuntimeInput('11'), allRuntimes);
+  test('single choice for trae', () => {
+    assert.deepStrictEqual(parseRuntimeInput('11'), ['trae']);
+  });
+
+  test('choice 12 returns all runtimes', () => {
+    assert.deepStrictEqual(parseRuntimeInput('12'), allRuntimes);
   });
 
   test('empty input defaults to claude', () => {
@@ -98,13 +103,13 @@ describe('multi-runtime selection parsing', () => {
   });
 
   test('invalid choices are ignored, falls back to claude if all invalid', () => {
-    assert.deepStrictEqual(parseRuntimeInput('12'), ['claude']);
+    assert.deepStrictEqual(parseRuntimeInput('13'), ['claude']);
     assert.deepStrictEqual(parseRuntimeInput('0'), ['claude']);
     assert.deepStrictEqual(parseRuntimeInput('abc'), ['claude']);
   });
 
   test('invalid choices mixed with valid are filtered out', () => {
-    assert.deepStrictEqual(parseRuntimeInput('1,11,5'), ['claude', 'codex']);
+    assert.deepStrictEqual(parseRuntimeInput('1,13,5'), ['claude', 'codex']);
     assert.deepStrictEqual(parseRuntimeInput('abc 3 xyz'), ['opencode']);
   });
 
@@ -137,21 +142,21 @@ describe('install.js source contains multi-select support', () => {
     }
   });
 
-  test('all shortcut uses option 11', () => {
+  test('all shortcut uses option 12', () => {
     assert.ok(
-      installSrc.includes("if (input === '11')"),
-      'all shortcut uses option 11'
+      installSrc.includes("if (input === '12')"),
+      'all shortcut uses option 12'
     );
   });
 
-  test('prompt lists Augment as option 10 and All as option 11', () => {
+  test('prompt lists Augment as option 10 and All as option 12', () => {
     assert.ok(
       installSrc.includes('10${reset}) Augment'),
       'prompt lists Augment as option 10'
     );
     assert.ok(
-      installSrc.includes('11${reset}) All'),
-      'prompt lists All as option 11'
+      installSrc.includes('12${reset}) All'),
+      'prompt lists All as option 12'
     );
   });
 
diff --git a/tests/trae-install.test.cjs b/tests/trae-install.test.cjs
new file mode 100644
index 000000000..578fe1a81
--- /dev/null
+++ b/tests/trae-install.test.cjs
@@ -0,0 +1,262 @@
+process.env.GSD_TEST_MODE = '1';
+
+const { test, describe, beforeEach, afterEach } = require('node:test');
+const assert = require('node:assert');
+const fs = require('node:fs');
+const path = require('node:path');
+const os = require('node:os');
+const { createTempDir, cleanup } = require('./helpers.cjs');
+
+const {
+  getDirName,
+  getGlobalDir,
+  getConfigDirFromHome,
+  convertClaudeToTraeMarkdown,
+  convertClaudeCommandToTraeSkill,
+  convertClaudeAgentToTraeAgent,
+  copyCommandsAsTraeSkills,
+  install,
+  uninstall,
+  writeManifest,
+} = require('../bin/install.js');
+
+describe('Trae runtime directory mapping', () => {
+  test('maps Trae to .trae for local installs', () => {
+    assert.strictEqual(getDirName('trae'), '.trae');
+  });
+
+  test('maps Trae to ~/.trae for global installs', () => {
+    assert.strictEqual(getGlobalDir('trae'), path.join(os.homedir(), '.trae'));
+  });
+
+  test('returns .trae config fragments for local and global installs', () => {
+    assert.strictEqual(getConfigDirFromHome('trae', false), "'.trae'");
+    assert.strictEqual(getConfigDirFromHome('trae', true), "'.trae'");
+  });
+});
+
+describe('getGlobalDir (Trae)', () => {
+  let originalTraeConfigDir;
+
+  beforeEach(() => {
+    originalTraeConfigDir = process.env.TRAE_CONFIG_DIR;
+  });
+
+  afterEach(() => {
+    if (originalTraeConfigDir !== undefined) {
+      process.env.TRAE_CONFIG_DIR = originalTraeConfigDir;
+    } else {
+      delete process.env.TRAE_CONFIG_DIR;
+    }
+  });
+
+  test('returns ~/.trae with no env var or explicit dir', () => {
+    delete process.env.TRAE_CONFIG_DIR;
+    const result = getGlobalDir('trae');
+    assert.strictEqual(result, path.join(os.homedir(), '.trae'));
+  });
+
+  test('returns explicit dir when provided', () => {
+    const result = getGlobalDir('trae', '/custom/trae-path');
+    assert.strictEqual(result, '/custom/trae-path');
+  });
+
+  test('respects TRAE_CONFIG_DIR env var', () => {
+    process.env.TRAE_CONFIG_DIR = '~/custom-trae';
+    const result = getGlobalDir('trae');
+    assert.strictEqual(result, path.join(os.homedir(), 'custom-trae'));
+  });
+
+  test('explicit dir takes priority over TRAE_CONFIG_DIR', () => {
+    process.env.TRAE_CONFIG_DIR = '~/from-env';
+    const result = getGlobalDir('trae', '/explicit/path');
+    assert.strictEqual(result, '/explicit/path');
+  });
+
+  test('does not break other runtimes', () => {
+    assert.strictEqual(getGlobalDir('claude'), path.join(os.homedir(), '.claude'));
+    assert.strictEqual(getGlobalDir('codex'), path.join(os.homedir(), '.codex'));
+  });
+});
+
+describe('Trae markdown conversion', () => {
+  test('converts Claude-specific references to Trae equivalents', () => {
+    const input = [
+      'Claude Code reads CLAUDE.md before using .claude/skills/.',
+      'Run /gsd:plan-phase with $ARGUMENTS.',
+      'Use Bash(command) and Edit(file).',
+    ].join('\n');
+
+    const result = convertClaudeToTraeMarkdown(input);
+
+    assert.ok(result.includes('Trae reads .trae/rules/ before using .trae/skills/.'), result);
+    assert.ok(result.includes('/gsd-plan-phase'), result);
+    assert.ok(result.includes('{{GSD_ARGS}}'), result);
+    assert.ok(result.includes('Shell('), result);
+    assert.ok(result.includes('StrReplace('), result);
+  });
+
+  test('converts commands and agents to Trae frontmatter', () => {
+    const command = `---
+name: gsd:new-project
+description: Initialize a project
+---
+
+Use .claude/skills/ and /gsd:help.
+`;
+    const agent = `---
+name: gsd-planner
+description: Planner agent
+tools: Read, Write
+color: blue
+---
+
+Read CLAUDE.md before acting.
+`;
+
+    const convertedCommand = convertClaudeCommandToTraeSkill(command, 'gsd-new-project');
+    const convertedAgent = convertClaudeAgentToTraeAgent(agent);
+
+    assert.ok(convertedCommand.includes('name: gsd-new-project'), convertedCommand);
+    assert.ok(!convertedCommand.includes('<trae_skill_adapter>'), convertedCommand);
+    assert.ok(convertedCommand.includes('.trae/skills/'), convertedCommand);
+    assert.ok(convertedCommand.includes('/gsd-help'), convertedCommand);
+
+    assert.ok(convertedAgent.includes('name: gsd-planner'), convertedAgent);
+    assert.ok(!convertedAgent.includes('color:'), convertedAgent);
+    assert.ok(convertedAgent.includes('.trae/rules/'), convertedAgent);
+  });
+});
+
+describe('copyCommandsAsTraeSkills', () => {
+  let tmpDir;
+
+  beforeEach(() => {
+    tmpDir = createTempDir('gsd-trae-copy-');
+  });
+
+  afterEach(() => {
+    cleanup(tmpDir);
+  });
+
+  test('creates one skill directory per GSD command', () => {
+    const srcDir = path.join(__dirname, '..', 'commands', 'gsd');
+    const skillsDir = path.join(tmpDir, '.trae', 'skills');
+
+    copyCommandsAsTraeSkills(srcDir, skillsDir, 'gsd', '$HOME/.trae/', 'trae');
+
+    const generated = path.join(skillsDir, 'gsd-help', 'SKILL.md');
+    assert.ok(fs.existsSync(generated), generated);
+
+    const content = fs.readFileSync(generated, 'utf8');
+    assert.ok(!content.includes('<trae_skill_adapter>'), content);
+    assert.ok(content.includes('name: gsd-help'), content);
+  });
+});
+
+describe('Trae local install/uninstall', () => {
+  let tmpDir;
+  let previousCwd;
+
+  beforeEach(() => {
+    tmpDir = createTempDir('gsd-trae-install-');
+    previousCwd = process.cwd();
+    process.chdir(tmpDir);
+  });
+
+  afterEach(() => {
+    process.chdir(previousCwd);
+    cleanup(tmpDir);
+  });
+
+  test('installs GSD into ./.trae and removes it cleanly', () => {
+    const result = install(false, 'trae');
+    const targetDir = path.join(tmpDir, '.trae');
+
+    assert.deepStrictEqual(result, {
+      settingsPath: null,
+      settings: null,
+      statuslineCommand: null,
+      runtime: 'trae',
+      configDir: fs.realpathSync(targetDir),
+    });
+
+    assert.ok(fs.existsSync(path.join(targetDir, 'skills', 'gsd-help', 'SKILL.md')));
+    assert.ok(fs.existsSync(path.join(targetDir, 'get-shit-done', 'VERSION')));
+    assert.ok(fs.existsSync(path.join(targetDir, 'agents')));
+
+    const manifest = writeManifest(targetDir, 'trae');
+    assert.ok(Object.keys(manifest.files).some(file => file.startsWith('skills/gsd-help/')), manifest);
+
+    uninstall(false, 'trae');
+
+    assert.ok(!fs.existsSync(path.join(targetDir, 'skills', 'gsd-help')), 'Trae skill directory removed');
+    assert.ok(!fs.existsSync(path.join(targetDir, 'get-shit-done')), 'get-shit-done removed');
+  });
+});
+
+describe('E2E: Trae uninstall skills cleanup', () => {
+  let tmpDir;
+  let previousCwd;
+
+  beforeEach(() => {
+    tmpDir = createTempDir('gsd-trae-uninstall-');
+    previousCwd = process.cwd();
+    process.chdir(tmpDir);
+  });
+
+  afterEach(() => {
+    process.chdir(previousCwd);
+    cleanup(tmpDir);
+  });
+
+  test('removes all gsd-* skill directories on --trae --uninstall', () => {
+    const targetDir = path.join(tmpDir, '.trae');
+    install(false, 'trae');
+
+    const skillsDir = path.join(targetDir, 'skills');
+    assert.ok(fs.existsSync(skillsDir), 'skills dir exists after install');
+
+    const installedSkills = fs.readdirSync(skillsDir, { withFileTypes: true })
+      .filter(e => e.isDirectory() && e.name.startsWith('gsd-'));
+    assert.ok(installedSkills.length > 0, `found ${installedSkills.length} gsd-* skill dirs before uninstall`);
+
+    uninstall(false, 'trae');
+
+    if (fs.existsSync(skillsDir)) {
+      const remainingGsd = fs.readdirSync(skillsDir, { withFileTypes: true })
+        .filter(e => e.isDirectory() && e.name.startsWith('gsd-'));
+      assert.strictEqual(remainingGsd.length, 0,
+        `Expected 0 gsd-* skill dirs after uninstall, found: ${remainingGsd.map(e => e.name).join(', ')}`);
+    }
+  });
+
+  test('preserves non-GSD skill directories during --trae --uninstall', () => {
+    const targetDir = path.join(tmpDir, '.trae');
+    install(false, 'trae');
+
+    const customSkillDir = path.join(targetDir, 'skills', 'my-custom-skill');
+    fs.mkdirSync(customSkillDir, { recursive: true });
+    fs.writeFileSync(path.join(customSkillDir, 'SKILL.md'), '# My Custom Skill\n');
+
+    assert.ok(fs.existsSync(path.join(customSkillDir, 'SKILL.md')), 'custom skill exists before uninstall');
+
+    uninstall(false, 'trae');
+
+    assert.ok(fs.existsSync(path.join(customSkillDir, 'SKILL.md')),
+      'Non-GSD skill directory should be preserved after Trae uninstall');
+  });
+
+  test('removes engine directory on --trae --uninstall', () => {
+    const targetDir = path.join(tmpDir, '.trae');
+    install(false, 'trae');
+
+    assert.ok(fs.existsSync(path.join(targetDir, 'get-shit-done', 'VERSION')),
+      'engine exists before uninstall');
+
+    uninstall(false, 'trae');
+
+    assert.ok(!fs.existsSync(path.join(targetDir, 'get-shit-done')),
+      'get-shit-done engine should be removed after Trae uninstall');
+  });
+});