diff --git a/.vscodeignore b/.vscodeignore
new file mode 100644
index 0000000..c97732c
--- /dev/null
+++ b/.vscodeignore
@@ -0,0 +1,36 @@
+# Source and development files
+src/**
+.vscode/**
+
+# Dependencies and package-manager cache
+node_modules/**
+
+# TypeScript source maps
+out/**/*.map
+
+# Local/generated packages
+*.vsix
+
+# Local workspace files
+.git/**
+.gitignore
+.claude/**
+.history/**
+.env
+.env.*
+
+# Logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# Tests and coverage
+coverage/**
+.nyc_output/**
+.vscode-test/**
+
+# OS files
+.DS_Store
+Thumbs.db
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..968d154
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 wuwen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/package.json b/package.json
index d7fefa4..168fc60 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,8 @@
   "displayName": "FMD C Compiler",
   "description": "FMD/FT61FC6X 系列 MCU 编译器支持（C.exe 工具链）",
   "version": "0.2.0",
+  "license": "MIT",
+  "icon": "resources/icon.png",
   "engines": {
     "vscode": "^1.85.0"
   },
diff --git a/resources/icon.png b/resources/icon.png
new file mode 100644
index 0000000..5059648
Binary files /dev/null and b/resources/icon.png differ