chore: add devcontainer support to ease developer workstation setup

.devcontainer/devcontainer.json

@@ -0,0 +1,77 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/python
+{
+	"name": "SpecKitDevContainer",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/python:3.13-trixie", // based on Debian "Trixie" (13)
+	"features": {
+		"ghcr.io/devcontainers/features/common-utils:2": {
+			"installZsh": true,
+			"installOhMyZsh": true,
+			"installOhMyZshConfig": true,
+			"upgradePackages": true,
+			"username": "devcontainer",
+			"userUid": "automatic",
+			"userGid": "automatic"
+		},
+		"ghcr.io/devcontainers/features/dotnet:2": {
+			"version": "lts"
+		},
+		"ghcr.io/devcontainers/features/git:1": {
+			"ppa": true,
+			"version": "latest"
+		},
+		"ghcr.io/devcontainers/features/node": {
+			"version": "lts"
+		}
+	},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+  "forwardPorts": [
+	8080 // for Spec-Kit documentation site
+  ],
+  "containerUser": "devcontainer",
+  "updateRemoteUserUID": true,
+  "postCreateCommand": "chmod +x ./.devcontainer/post-create.sh && ./.devcontainer/post-create.sh",
+  "postStartCommand": "git config --global --add safe.directory ${containerWorkspaceFolder}",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+		"mhutchie.git-graph",
+		"eamodio.gitlens",
+		"anweber.reveal-button",
+		"chrisdias.promptboost",
+		// Github Copilot
+		"GitHub.copilot",
+		"GitHub.copilot-chat",
+		// Codex
+		"openai.chatgpt",
+		// Kilo Code
+		"kilocode.Kilo-Code",
+		// Roo Code
+		"RooVeterinaryInc.roo-cline",
+		// Amazon Developer Q
+		"AmazonWebServices.amazon-q-vscode",
+		// Claude Code
+		"anthropic.claude-code"
+	],
+      "settings": {
+		"debug.javascript.autoAttachFilter": "disabled", // fix running commands in integrated terminal
+
+		// Specify settings for Github Copilot
+		"git.autofetch": true,
+		"chat.promptFilesRecommendations": {
+			"speckit.constitution": true,
+			"speckit.specify": true,
+			"speckit.plan": true,
+			"speckit.tasks": true,
+			"speckit.implement": true
+		},
+		"chat.tools.terminal.autoApprove": {
+			".specify/scripts/bash/": true,
+			".specify/scripts/powershell/": true
+		}
+      }
+    }
+  }
+}

.devcontainer/post-create.sh

@@ -0,0 +1,100 @@
+#!/bin/bash
+
+# Exit immediately on error, treat unset variables as an error, and fail if any command in a pipeline fails.
+set -euo pipefail
+
+# Function to run a command and show logs only on error
+run_command() {
+    local command_to_run="$*"
+    local output
+    local exit_code
+
+    # Capture all output (stdout and stderr)
+    output=$(eval "$command_to_run" 2>&1) || exit_code=$?
+    exit_code=${exit_code:-0}
+
+    if [ $exit_code -ne 0 ]; then
+        echo -e "\033[0;31m[ERROR] Command failed (Exit Code $exit_code): $command_to_run\033[0m" >&2
+        echo -e "\033[0;31m$output\033[0m" >&2
+
+        exit $exit_code
+    fi
+}
+
+# Installing CLI-based AI Agents
+
+echo -e "\n🤖 Installing Copilot CLI..."
+run_command "npm install -g @github/copilot@latest"
+echo "✅ Done"
+
+echo -e "\n🤖 Installing Claude CLI..."
+run_command "npm install -g @anthropic-ai/claude-code@latest"
+echo "✅ Done"
+
+echo -e "\n🤖 Installing Codex CLI..."
+run_command "npm install -g @openai/codex@latest"
+echo "✅ Done"
+
+echo -e "\n🤖 Installing Gemini CLI..."
+run_command "npm install -g @google/gemini-cli@latest"
+echo "✅ Done"
+
+echo -e "\n🤖 Installing Augie CLI..."
+run_command "npm install -g @augmentcode/auggie@latest"
+echo "✅ Done"
+
+echo -e "\n🤖 Installing Qwen Code CLI..."
+run_command "npm install -g @qwen-code/qwen-code@latest"
+echo "✅ Done"
+
+echo -e "\n🤖 Installing OpenCode CLI..."
+run_command "npm install -g opencode-ai@latest"
+echo "✅ Done"
+
+echo -e "\n🤖 Installing Amazon Q CLI..."
+# 👉🏾 https://docs.aws.amazon.com/amazonq/latest/qdeveloper-ug/command-line-verify-download.html
+
+run_command "curl --proto '=https' --tlsv1.2 -sSf 'https://desktop-release.q.us-east-1.amazonaws.com/latest/q-x86_64-linux.zip' -o 'q.zip'"
+run_command "curl --proto '=https' --tlsv1.2 -sSf 'https://desktop-release.q.us-east-1.amazonaws.com/latest/q-x86_64-linux.zip.sig' -o 'q.zip.sig'"
+cat > amazonq-public-key.asc << 'EOF'
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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f8yY
+-----END PGP PUBLIC KEY BLOCK-----
+EOF
+run_command "gpg --batch --import amazonq-public-key.asc"
+run_command "gpg --verify q.zip.sig q.zip"
+run_command "unzip -q q.zip"
+run_command "chmod +x ./q/install.sh"
+run_command "./q/install.sh --no-confirm"
+run_command "rm -rf ./q q.zip q.zip.sig amazonq-public-key.asc"
+echo "✅ Done"
+
+echo -e "\n🤖 Installing CodeBuddy CLI..."
+run_command "npm install -g @tencent-ai/codebuddy-code@latest"
+echo "✅ Done"
+
+# Installing UV (Python package manager)
+echo -e "\n🐍 Installing UV - Python Package Manager..."
+run_command "pipx install uv"
+echo "✅ Done"
+
+# Installing DocFx (for documentation site)
+echo -e "\n📚 Installing DocFx..."
+run_command "dotnet tool update -g docfx"
+echo "✅ Done"
+
+echo -e "\n🧹 Cleaning cache..."
+run_command "sudo apt-get autoclean"
+run_command "sudo apt-get clean"
+
+echo "✅ Setup completed. Happy coding! 🚀"

AGENTS.md

@@ -239,6 +239,51 @@ AGENT_CONFIG = {
 - Reduces the chance of bugs when adding new agents
 - Tool checking "just works" without additional mappings
 
+#### 7. Update Devcontainer files (Optional)
+
+For agents that have VS Code extensions or require CLI installation, update the devcontainer configuration files:
+
+##### VS Code Extension-based Agents
+
+For agents available as VS Code extensions, add them to `.devcontainer/devcontainer.json`:
+
+```json
+{
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        // ... existing extensions ...
+        // [New Agent Name]
+        "[New Agent Extension ID]"
+      ]
+    }
+  }
+}
+```
+
+##### CLI-based Agents
+
+For agents that require CLI tools, add installation commands to `.devcontainer/post-create.sh`:
+
+```bash
+#!/bin/bash
+
+# Existing installations...
+
+echo -e "\n🤖 Installing [New Agent Name] CLI..."
+# run_command "npm install -g [agent-cli-package]@latest" # Example for node-based CLI
+# or other installation instructions (must be non-interactive and compatible with Linux Debian "Trixie" or later)...
+echo "✅ Done"
+
+```
+
+**Quick Tips:**
+
+- **Extension-based agents**: Add to the `extensions` array in `devcontainer.json`
+- **CLI-based agents**: Add installation scripts to `post-create.sh`
+- **Hybrid agents**: May require both extension and CLI installation
+- **Test thoroughly**: Ensure installations work in the devcontainer environment
+
 ## Agent Categories
 
 ### CLI-Based Agents
@@ -249,6 +294,7 @@ Require a command-line tool to be installed:
 - **Cursor**: `cursor-agent` CLI
 - **Qwen Code**: `qwen` CLI
 - **opencode**: `opencode` CLI
+- **Amazon Q Developer CLI**: `q` CLI
 - **CodeBuddy CLI**: `codebuddy` CLI
 
 ### IDE-Based Agents

CONTRIBUTING.md

@@ -13,6 +13,23 @@ These are one time installations required to be able to test your changes locall
 1. Install [Git](https://git-scm.com/downloads)
 1. Have an [AI coding agent available](README.md#-supported-ai-agents)
 
+<details>
+<summary><b>💡 Hint if you are using <code>VSCode</code> or <code>GitHub Codespaces</code> as your IDE</b></summary>
+
+<br>
+
+Provided you have [Docker](https://docker.com) installed on your machine, you can leverage [Dev Containers](https://containers.dev) through this [VSCode extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-containers), to easily set up your development environment, with aforementioned tools already installed and configured, thanks to the `.devcontainer/devcontainer.json` file (located at the root of the project).
+
+To do so, simply:
+
+- Checkout the repo
+- Open it with VSCode
+- Open the [Command Palette](https://code.visualstudio.com/docs/getstarted/userinterface#_command-palette) and select "Dev Containers: Open Folder in Container..."
+
+On [GitHub Codespaces](https://github.com/features/codespaces) it's even simpler, as it leverages the `.devcontainer/devcontainer.json` automatically upon opening the codespace.
+
+</details>
+
 ## Submitting a pull request
 
 >[!NOTE]