Update Agent Arcade canvas to six games 🤖🤖🤖

.github/plugin/marketplace.json

@@ -141,8 +141,8 @@
     {
       "name": "arcade-canvas",
       "source": "plugins/arcade-canvas",
-      "description": "Play five retro Phaser mini-games in a Copilot canvas while agents work.",
-      "version": "1.0.2"
+      "description": "Play six retro Phaser mini-games in a Copilot canvas while agents work.",
+      "version": "1.1.0"
     },
     {
       "name": "arch",

docs/README.plugins.md

@@ -31,7 +31,7 @@ See [CONTRIBUTING.md](../CONTRIBUTING.md#adding-plugins) for guidelines on how t
 | [acreadiness-cockpit](../plugins/acreadiness-cockpit/README.md) | Drive Microsoft AgentRC from Copilot chat: assess AI readiness, generate Copilot instructions (flat or nested with applyTo globs for monorepos), and manage policies. Produces a self-contained static HTML dashboard at reports/index.html. | 4 items | agentrc, ai-readiness, copilot-instructions, readiness-report, monorepo, policy, dashboard |
 | [ai-team-orchestration](../plugins/ai-team-orchestration/README.md) | Run a lightweight, role-separated AI development team with flexible tools, developer-selected models, proportionate planning, and optional QA. | 4 items | ai-team, multi-agent, sprint-planning, brainstorm, project-management, orchestration, developer-workflow |
 | [apng-studio](../plugins/apng-studio/README.md) | Interactive GitHub Copilot app canvas extension for building Animated PNG (APNG) files from frames. Draw or upload frames, tune per-frame timing and compositing, preview live, send the result to your phone by QR, and export an animated .png. | 1 items | animated-png, apng, copilot-canvas, frame-animation, image-export, interactive-canvas |
-| [arcade-canvas](../plugins/arcade-canvas/README.md) | Play five retro Phaser mini-games in a Copilot canvas while agents work. | 1 items | arcade-games, copilot-canvas, interactive-canvas, phaser, retro-games, session-breaks |
+| [arcade-canvas](../plugins/arcade-canvas/README.md) | Play six retro Phaser mini-games in a Copilot canvas while agents work. | 1 items | arcade-games, copilot-canvas, interactive-canvas, phaser, retro-games, session-breaks |
 | [arch](../plugins/arch/README.md) | Architecture and modernization toolkit: produce a cited architecture document for a locally-cloned repo, and generate a phased modernization plan that auto-runs Documentation mode when needed. | 1 items | architecture, modernization, documentation, migration, onboarding |
 | [arize-ax](../plugins/arize-ax/README.md) | Arize AX platform skills for LLM observability, evaluation, and optimization. Includes trace export, instrumentation, datasets, experiments, evaluators, AI provider integrations, annotations, prompt optimization, and deep linking to the Arize UI. | 9 items | arize, llm, observability, tracing, evaluation, instrumentation, datasets, experiments, prompt-optimization |
 | [automate-this](../plugins/automate-this/README.md) | Record your screen doing a manual process, drop the video on your Desktop, and let Copilot CLI analyze it frame-by-frame to build working automation scripts. Supports narrated recordings with audio transcription. | 1 items | automation, screen-recording, workflow, video-analysis, process-automation, scripting, productivity, copilot-cli |

extensions/arcade-canvas/README.md

@@ -1,6 +1,6 @@
 # Agent Arcade Canvas
 
-A GitHub Copilot canvas that opens a retro arcade in the side panel. It serves the built Agent Arcade Phaser frontend and lets either the user or the agent switch between five mini-games.
+A GitHub Copilot canvas that opens a retro arcade in the side panel. It serves the built Agent Arcade Phaser frontend and lets either the user or the agent switch between six mini-games.
 
 ## Games
 
@@ -9,36 +9,24 @@ A GitHub Copilot canvas that opens a retro arcade in the side panel. It serves t
 - **Galaxy Blaster** — Galaga-style space shooter with formation enemies, attack patterns, and dual-shot power-up.
 - **Ninja Runner** — Classic platformer with double jumps, power-ups, warp pipes, and enemies.
 - **Planet Guardian** — Defender-style side-scrolling shooter with humanoid rescues and six enemy types.
+- **Surface Defense** — Missile-defense strategy with six cities, three batteries, chain reactions, smart warheads, bombers, and hostile satellites.
 
 ## Files
 
 - `extension.mjs` — canvas declaration, loopback game server, static asset handling, and agent actions.
 - `game/` — compiled Phaser game frontend served inside the canvas.
 - `assets/` — game sprites, sounds, app icon, and `preview.png` for the extensions gallery.
-- `package.json` — declares the Copilot SDK dependency and ESM entry point.
 - `copilot-extension.json` — Copilot extension name/version metadata.
-- `canvas.json` — Awesome Copilot gallery metadata.
 
 ## Prerequisites
 
-- **Node.js 20.19 or newer** because the Copilot SDK requires `node ^20.19.0 || >=22.12.0`.
 - The GitHub Copilot app canvas / UI-extensions experiment enabled.
 
 ## Install
 
-Drop this folder at `~/.copilot/extensions/arcade-canvas/` for user scope, or in a repository at `.github/extensions/arcade-canvas/` for project scope. Then install dependencies from inside the copied folder:
+Drop this folder at `~/.copilot/extensions/arcade-canvas/` for user scope, or in a repository at `.github/extensions/arcade-canvas/` for project scope. Do not install `@github/copilot-sdk` locally. Copilot provides it through the automatic extension module resolver.
 
-```sh
-# User scope
-cd ~/.copilot/extensions/arcade-canvas
-
-# Or project scope, from the repository root
-cd .github/extensions/arcade-canvas
-
-npm install
-```
-
-Reload extensions in the GitHub Copilot app, then open the `arcade-canvas` canvas. The canvas accepts an optional `defaultGame` input with one of these keys: `cosmic-rocks`, `alien-onslaught`, `galaxy-blaster`, `ninja-runner`, or `defender`.
+Reload extensions in the GitHub Copilot app, then open the `arcade-canvas` canvas. The canvas accepts an optional `defaultGame` input with one of these keys: `cosmic-rocks`, `alien-onslaught`, `galaxy-blaster`, `ninja-runner`, `defender`, or `surface-defense`.
 
 ## Agent actions
 
@@ -54,7 +42,16 @@ In the Agent Arcade repository, rebuild the committed canvas bundle after fronte
 npm run build:canvas
 ```
 
-That command builds the frontend, copies `dist/game` into `game/`, copies `dist/assets` into `assets/`, writes `assets/preview.png` for the Awesome Copilot gallery, and bundles `assets/canvas-background.webp` for the canvas-only space backdrop.
+That command builds the frontend, copies `dist/game` into `game/`, copies the required assets into `assets/`, writes `assets/preview.png` for the Awesome Copilot gallery, and bundles `assets/canvas-background.webp` for the canvas-only space backdrop. The canvas package uses compressed M4A copies of WAV effects and removes unused desktop assets so it stays within the 8 MiB project-extension trust limit.
+
+## Awesome Copilot sync
+
+The published copy lives in `github/awesome-copilot` under `extensions/arcade-canvas/`. After rebuilding this canonical copy:
+
+1. Replace the Awesome Copilot `extensions/arcade-canvas/` directory with this directory.
+2. Update `plugins/arcade-canvas/plugin.json`, including its version and six-game description.
+3. Update `plugins/arcade-canvas/README.md`.
+4. Run `npm run plugin:validate`, `npm run build`, and `npm run website:data` in the Awesome Copilot repository.
 
 ## Credits
 
@@ -63,6 +60,8 @@ That command builds the frontend, copies `dist/game` into `game/`, copies `dist/
 - Galaga-style game mechanics: [WesleyEdwards/galaga](https://github.com/WesleyEdwards/galaga) by Wesley Edwards.
 - Asteroids-style game mechanics: [phaser3-typescript](https://github.com/digitsensitive/phaser3-typescript) by digitsensitive.
 - Defender-style game mechanics and sound effects: [OpenDefender](https://github.com/mkinney/Opendefender) by mkinney.
+- Missile-defense gameplay reference: [Basic Missile Command HTML and JavaScript Game](https://gist.github.com/straker/afc4e2a30b6df772a5f9f6ef01751d41) by straker (CC0 1.0).
+- Surface Defense uses original synthesized WAV effects generated by `scripts/generate-surface-defense-audio.mjs`; no commercial-game audio is redistributed.
 - Retro game sound effects: ["Retro game sound effects"](https://opengameart.org/content/retro-game-sound-effects) by Vircon32 (Carra), published at OpenGameArt under [CC-BY 4.0](https://creativecommons.org/licenses/by/4.0/).
 - Thanks to [John Papa](https://github.com/johnpapa) for his Alien Onslaught game PR.
 - Thanks to [Shayne Boyer](https://github.com/spboyer) for the initial PR to get Agent Arcade running in the GitHub App canvas.

extensions/arcade-canvas/assets/asset-.md

@@ -3,4 +3,5 @@ https://opengameart.org/content/2d-nature-platformer-tileset-16x16
 https://opengameart.org/content/retro-game-sound-effects
 https://github.com/digitsensitive/phaser3-typescript
 https://github.com/WesleyEdwards/galaga
-https://juhosprite.itch.io/simple-platformer-16
+https://juhosprite.itch.io/simple-platformer-16
+https://gist.github.com/straker/afc4e2a30b6df772a5f9f6ef01751d41