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Add skeleton for dev_mcp_host DevTools extension (#53)
Note for reviewers: the `build/` directory is generated code and does not need to be reviewed. This is the built assets of the dev_mcp_host flutter web app (pre requisite for loading the DevTools extension in a real DevTools-hosted environment)
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‎.vscode/launch.json‎

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{
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// Use IntelliSense to learn about possible attributes.
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// Hover to view descriptions of existing attributes.
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// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
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"version": "0.2.0",
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"configurations": [
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{
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"name": "dev_mcp_host + simulated environment",
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"cwd": "pkgs/dev_mcp_host",
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"request": "launch",
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"type": "dart",
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"args": [
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"--dart-define=use_simulated_environment=true"
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],
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},
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{
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"name": "counter_app",
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"cwd": "pkgs/dart_tooling_mcp_server/test_fixtures/counter_app",
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"request": "launch",
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"type": "dart"
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},
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{
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"name": "counter_app (profile mode)",
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"cwd": "pkgs/dart_tooling_mcp_server/test_fixtures/counter_app",
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"request": "launch",
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"type": "dart",
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"flutterMode": "profile"
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},
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{
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"name": "counter_app (release mode)",
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"cwd": "pkgs/dart_tooling_mcp_server/test_fixtures/counter_app",
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"request": "launch",
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"type": "dart",
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"flutterMode": "release"
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}
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]
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}

‎pkgs/dev_mcp_host/.gitignore‎

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# Miscellaneous
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*.class
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*.log
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*.pyc
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*.swp
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.DS_Store
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.atom/
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.build/
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.buildlog/
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.history
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.svn/
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.swiftpm/
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migrate_working_dir/
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# IntelliJ related
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*.iml
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*.ipr
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*.iws
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.idea/
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# The .vscode folder contains launch configuration and tasks you configure in
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# VS Code which you may wish to be included in version control, so this line
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# is commented out by default.
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#.vscode/
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# Flutter/Dart/Pub related
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**/doc/api/
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**/ios/Flutter/.last_build_id
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.dart_tool/
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.flutter-plugins
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.flutter-plugins-dependencies
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.pub-cache/
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.pub/
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/build/
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# Symbolication related
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app.*.symbols
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# Obfuscation related
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app.*.map.json
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# Android Studio will place build artifacts here
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/android/app/debug
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/android/app/profile
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/android/app/release

‎pkgs/dev_mcp_host/.metadata‎

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# This file tracks properties of this Flutter project.
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# Used by Flutter tool to assess capabilities and perform upgrades etc.
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#
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# This file should be version controlled and should not be manually edited.
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version:
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revision: "ceec33f16beaccf5e7a86099f0544ea52a327b28"
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channel: "[user-branch]"
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project_type: app
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# Tracks metadata for the flutter migrate command
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migration:
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platforms:
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- platform: root
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create_revision: ceec33f16beaccf5e7a86099f0544ea52a327b28
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base_revision: ceec33f16beaccf5e7a86099f0544ea52a327b28
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- platform: web
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create_revision: ceec33f16beaccf5e7a86099f0544ea52a327b28
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base_revision: ceec33f16beaccf5e7a86099f0544ea52a327b28
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# User provided section
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# List of Local paths (relative to this file) that should be
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# ignored by the migrate tool.
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#
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# Files that are not part of the templates will be ignored by default.
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unmanaged_files:
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- 'lib/main.dart'
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- 'ios/Runner.xcodeproj/project.pbxproj'

‎pkgs/dev_mcp_host/README.md‎

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# dev_mcp_host
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A DevTools extension that acts as an MCP Host & Client for development purposes.
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## Using this extension to develop the Dart Tooling MCP Server
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### From VS code
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These instructions will also apply to VS code based IDEs, like Cursor, where the
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Dart-Code extension is installed.
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1. Open the `ai/` folder in your IDE.
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2. Navigate to the Flutter sidebar to see the `dev_mcp_host` DevTools extension.
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3. Open the `dev_mcp_host` extension. The extension will automatically be
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connected to the DTD instance managed by the IDE.
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### From IntelliJ / Android Studio
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1. Open the `ai/` folder in your IDE.
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2. Navigate to the DevTools Extensions tool window.
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3. Open the `dev_mcp_host` DevTools tab. The extension will automatically be
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connected to the DTD instance managed by the IDE.
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## Developing the extension
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Launch the extension web app in the simulated environment by using the provided
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VS Code launch configuration, or run this command from `dev_mcp_host`:
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```shell
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flutter run -d chrome --dart-define=use_simulated_environment=true
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```
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## Building the extension
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To build your extension so that it can be served from a real instance of
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DevTools, run the build command:
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```shell
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cd dev_mcp_host;
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flutter pub get;
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dart run devtools_extensions build_and_copy --source=. --dest=./extension/devtools
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```

‎pkgs/dev_mcp_host/analysis_options.yaml‎

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# https://dart.dev/guides/language/analysis-options
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include: package:flutter_lints/flutter.yaml
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linter:
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rules:
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- prefer_final_locals

‎pkgs/dev_mcp_host/devtools_options.yaml‎

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description: This file stores settings for Dart & Flutter DevTools.
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documentation: https://docs.flutter.dev/tools/devtools/extensions#configure-extension-enablement-states
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extensions:
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- dev_mcp_host: true

‎pkgs/dev_mcp_host/extension/devtools/build/.last_build_id‎

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68ea93ac2feaa771332bb5732a58c425

‎pkgs/dev_mcp_host/extension/devtools/build/assets/AssetManifest.bin‎

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2packages/cupertino_icons/assets/CupertinoIcons.ttf asset2packages/cupertino_icons/assets/CupertinoIcons.ttf:packages/devtools_app_shared/fonts/Roboto/Roboto-Black.ttf asset:packages/devtools_app_shared/fonts/Roboto/Roboto-Black.ttf9packages/devtools_app_shared/fonts/Roboto/Roboto-Bold.ttf asset9packages/devtools_app_shared/fonts/Roboto/Roboto-Bold.ttf:packages/devtools_app_shared/fonts/Roboto/Roboto-Light.ttf asset:packages/devtools_app_shared/fonts/Roboto/Roboto-Light.ttf;packages/devtools_app_shared/fonts/Roboto/Roboto-Medium.ttf asset;packages/devtools_app_shared/fonts/Roboto/Roboto-Medium.ttf<packages/devtools_app_shared/fonts/Roboto/Roboto-Regular.ttf asset<packages/devtools_app_shared/fonts/Roboto/Roboto-Regular.ttf9packages/devtools_app_shared/fonts/Roboto/Roboto-Thin.ttf asset9packages/devtools_app_shared/fonts/Roboto/Roboto-Thin.ttfBpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Bold.ttf assetBpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Bold.ttfCpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Light.ttf assetCpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Light.ttfDpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Medium.ttf assetDpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Medium.ttfEpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Regular.ttf assetEpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Regular.ttfBpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Thin.ttf assetBpackages/devtools_app_shared/fonts/Roboto_Mono/RobotoMono-Thin.ttf

‎pkgs/dev_mcp_host/extension/devtools/build/assets/AssetManifest.bin.json‎

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‎pkgs/dev_mcp_host/extension/devtools/build/assets/AssetManifest.json‎

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