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Making sense of Google’s agentic dev tools

Making sense of Google’s agentic dev tools

Google released a few cool new AI-assisted developer toys recently. Have you tried them? Do you know which one to use and when? That’s the goal of this talk, to make sense of those new agentic dev tools.

We will look at Antigravity, a new kind of IDE where the main view is actually your AI agent manager dashboard. You plan the work, and autonomous agents execute the tasks. Of course, anytime, you can switch to the more classic code editor with all the smart completions you’d expect.

We’ll discover Stitch, an AI-powered tool which helps app builders create high-quality user interfaces for mobile and web apps. You can then eventually export them to vibe code a first prototype with Google AI Studio.

Next is Jules, a coding agent that lives in the cloud. You can assign Jules boring tasks (fixing bugs or updating tests) and it will work in the background to send you a Pull Request when it is finished.

Finally, we will try out the Gemini CLI, which brings these smart assistants right into your terminal. But it’s not just about code, it’ll be your Swiss Army knife for all kinds of tasks!

Join me to see how these tools work in real life. You will leave knowing how to speed up your development and how to become a great boss for your new robot interns!

Avatar for Guillaume Laforge

Guillaume Laforge

April 23, 2026

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  1. Dev agentique : Stitch et Jules dans l’Antigravity de la

    constellation Gemini Guillaume Laforge — @glaforge
  2. Guillaume Laforge Developer Advocate chez Google Cloud Committer on ADK

    Java and LangChain4j Java Champion & Apache Groovy co-founder Cast Codeur Who Am I? glaforge glaforge.dev @glaforge @glaforge.dev @[email protected]
  3. GEMINI.md AGENTS.md AGENT SKILLS Gemini CLI AGENTIC DEVELOPMENT IDEATION &

    PROTOTYPING ASYNC CLOUD AUTOMATION MCP MCP MCP MCP
  4. Multi-model playground Latest Models • Gemini Pro, Flash, Flash-Lite •

    Live & TTS capabilities Specialized & Lightweight • Nano Banana, Veo, Lyria • Gemma Vibe Coding studio “Build” Mode Features • Built-in Antigravity coding agent • Live app preview • Sharing privately with others • Export to GitHub • One-click Cloud Run deployment • Firebase: Firestore & Auth
  5. Vibe Design • From prompt ⇒ UI design • For

    apps & websites • Infinite canvas (multiple screen variations) • Multimodal input (text, screenshots) Encoding & Automation • DESIGN.md ⇒ encode design & style in Markdown files • Generates HTML, CSS, React & Tailwind code Connectivity & Exports Exports to: • Figma • Google AI Studio Ecosystem Integration: • Native MCP server support • Custom Agent Skill • Full-featured SDK for developers
  6. Gemini CLI Core Features • Coding agent harness CLI for

    Gemini • Integrates in IDEs via ACP • Headless mode & Planning mode • Session & history management Interaction & Commands • Run shell commands interactively • Slash commands for custom commands Advanced Capabilities • Hooks to plug into the lifecycle • Sandboxing • Git Worktrees (experimental) • Remote (via A2A) & parallel subagents • Extension mechanism • Agent Skills (including built-in creator skill) • MCP servers support
  7. Core Interface • Central agent manager (VSCode integrated) • Inbox

    for ongoing working agents • Playground to experiment with ideas Intelligence & Control • Smart completion & chat with @-file tagging • Rules & Workflows • Built-in AI-driven browser • MCP server support Verifiable Artifacts • Implementation plans & review comments • Task lists & ongoing activity status • Detailed walkthroughs • Code diffs • Screenshots & browser recordings
  8. Capabilities • Cloud asynchronous development agent • Work with GitHub

    repositories • Reads AGENTS.md to understand codebase Runtime & Tools • Short-lived VMs with Node, Java, Go, Python, Rust, and customizable with a script • Other surfaces: REST API, SDK and CLI Tasks & Automation Execution Modes: • Launch manually or tag @jules in issues • Automated on a schedule Workflow: • Review the plan, add feedback • Publishes Pull Requests (PRs) jules
  9. GEMINI.md AGENTS.md AGENT SKILLS Gemini CLI AGENTIC DEVELOPMENT IDEATION &

    PROTOTYPING ASYNC CLOUD AUTOMATION MCP MCP MCP MCP