10 Essential Rules for Surviving and Thriving in Google Antigravity
While Google Antigravity hasn't necessarily reached widespread industry adoption just yet, using it heavily for personal projects gives a fascinating insight into the future of coding and software development. The paradigm is shifting from simply typing out syntax to managing and orchestrating autonomous AI agents. But handing over the keys to an AI agent in a blank workspace can quickly turn into a chaotic, quota-draining nightmare if you aren't careful. After spending the last few weeks navigating Antigravity, I've compiled the most crucial rules of engagement to keep your agents productive, secure, and efficient.
Part 1: Surviving in Antigravity
1. Lay Down the Law Immediately
When you open a blank folder or start a new project, your very first prompt shouldn't be about building features. It should be about setting strict ground rules. You want to establish a professional standard from the very first token.
Give your agents clear instructions to enforce Security by Design. If you are building out web services, explicitly instruct the agent to adhere to the OWASP Top 10 and the OWASP API Security Top 10 from the jump. Mandate DRY (Don't Repeat Yourself) principles, clean maintainability, and thorough documentation. Furthermore, instruct the agent to script and automate as much boilerplate as possible when standing up new infrastructure or deployments. Setting these guardrails early ensures your digital assistant stays focused, consistent, and strictly aligned with your project's architectural standards from day one.
2. Understand and Protect Your Quotas
Agent-driven development burns through tokens fast. You can track your usage by navigating to Preferences -> Antigravity Settings -> Models.
It is vital to understand how the limits work: Antigravity uses a dual-quota system. You have a short-term 5-hour sprint limit, and a larger weekly baseline limit. If your quota says it won't reset for 7 days, it means you've completely exhausted your weekly pool. Upgrading to the AI Pro subscription provides a significantly larger 5-hour capacity and a massive weekly pool, but careless prompt engineering can still lock a Pro user out for days. Treat your quota like a finite budget.
3. Be a Model Matchmaker
To maximize your quota and get the best results, you need to route specific tasks to the models best equipped to handle them. Do not use your heaviest models for trivial tasks.
| Task Category | Recommended Model | Why it Works |
|---|---|---|
| Planning & Architecture | Claude Sonnet 4.6 / Opus 4.6 | Exceptional at deep thinking, structuring complex multi-file projects, and laying out clear roadmaps. |
| UI, UX & Quick Edits | Gemini 3 Flash | Incredibly fast and lightweight. Perfect for visual tweaks, CSS adjustments, or simple frontend logic. |
| Backend Logic & Security | Gemini 3.1 Pro | Unmatched for complex engine logic, deep auditing, and heavy backend lifting. |
4. Don't Get Lazy with the Easy Stuff
It is incredibly tempting to sit back and tell your agent to write the code, compile the app, run the build, and execute the test suite. Don't do this. Allowing the agent to run terminal commands for compiling and testing burns through your quota at lightning speed, especially if it hits an error and tries to continuously debug itself. Instruct your agents to focus strictly on building and writing the code. Take the few seconds to handle the compiling, building, and testing manually. Your weekly quota will thank you.
5. Never Turn On "Always Proceed"
Antigravity will frequently pause and prompt you for permission to execute terminal commands or modify files. It might seem convenient to flip the agent settings to "Always Proceed" (Turbo mode) to avoid the constant interruptions.
This is highly dangerous. If an agent gets caught in an execution loop, it can start hallucinating wildly, changing code in random places, breaking your architecture, and completely draining your weekly quota in a matter of minutes. Keep the execution permissions on the "Agent-Assisted" or "Review" presets.
The Two-Strike Rule: If an agent attempts to fix the exact same error twice and fails, stop the execution immediately. Review the code yourself, figure out the root cause, and provide the agent with a fresh, highly specific prompt to guide it out of the loop.
Bonus Tip: Verify with Artifacts, Not Logs
When an agent finishes a large task, don't waste time scrolling through thousands of lines of raw tool calls to see what it did. Antigravity agents generate "Artifacts"—tangible deliverables like structured implementation plans, standardized code diffs, and UI screenshots. Review these artifacts first. If something looks wrong, you can leave a comment directly on the artifact, and the agent will incorporate your feedback seamlessly.
Part 2: Thriving in Antigravity
6. Codify Your Standards with Custom SKILLS and RULES
Surviving means writing good prompts; thriving means not having to repeat them. Antigravity allows you to customize your agents by defining specific SKILLS (specialized roles and domain expertise) and RULES (hard behavioral constraints).
Instead of telling the agent how to act every single time, you can bake your engineering philosophy directly into its configuration. The best way to organize this is by building out a dedicated .agents directory at the root of your project.
SKILLS (The Hats the Agent Wears):
Think of SKILLS as specialized team members. You activate these depending on the specific task you are giving the agent.
- The React Architect (
./.agents/skills/react-architect/SKILL.md): Instructs the agent to focus strictly on component hierarchy, custom hooks, prop drilling avoidance, and state management, separating logic entirely from styling concerns. - The UI Designer (
./.agents/skills/ui-designer/SKILL.md): Owns the CSS, responsive breakpoints, user experience, and visual polish. - The Node Backend Engineer (
./.agents/skills/node-engineer/SKILL.md): Dictates the structure of your APIs, routing, middleware integration, and async error handling. - The OWASP Auditor (
./.agents/skills/security-auditor/SKILL.md): A specialized profile you invoke to ruthlessly review generated code against the OWASP Top 10 and OWASP API Security Top 10 to spot vulnerabilities.
RULES (The Immutable Laws):
RULES are global guardrails the agent must always follow, regardless of which SKILL is currently active. Place these in a central rules folder (e.g., ./.agents/rules/).
- Keep it DRY: Never duplicate logic; immediately abstract reusable code into utilities.
- Security by Design: Enforce strict input validation and least-privilege data access from the very first line of code.
- Maintainability & Quality: Ensure high code quality with descriptive naming conventions and modularity.
- Mandatory Documentation: The agent must sequentially document its implementation steps in the
README.mdso the project can always be understood and rebuilt from scratch.
A quick reality check: Even with perfectly defined SKILLS and strict RULES, an agent dealing with a complex codebase will eventually miss things. It might duplicate a utility, write a messy function, or leave out an inline comment. This is normal. Anticipating this inevitable drift leads perfectly into how you should be handling the cleanup phase.
7. Divide and Conquer: The CLI & Code Assist Combo
Don't make your main Antigravity agent do all the thinking and all the doing. You have other tools at your disposal: start the gemini cli in your integrated terminal and install the Gemini Code Assist extension.
Because these tools operate on entirely separate quota systems from the main Antigravity workspace, you should use them simultaneously to plan and analyze while you work. Offload your architectural planning, logic validation, and code review to the CLI or Code Assist. This saves your precious Antigravity token budget purely for the heavy lifting of multi-file generation.
8. Orchestrate the Build, Don't Micro-manage
Once you've done the deep thinking and planning using your auxiliary tools, it’s time to unleash the main Antigravity agents. Treat yourself as the lead architect and the agents as your execution team.
Take the finalized, step-by-step blueprint generated by the CLI or Code Assist and feed it directly to the heavy-duty agents. Because you’ve already done the analytical legwork outside of their context window, they won't waste tokens brainstorming. They can focus 100% of their computational power on flawlessly executing the build across your codebase based on your explicit instructions.
9. Delegate the Janitorial Work
As mentioned in the SKILLS section, even the best models leave behind a mess sometimes. Do not burn your main Antigravity agent's quota on cleanup duty.
Instead, rely on your lightweight tools. Highlight a block of code and use Gemini Code Assist to generate descriptive, context-aware comments throughout the file. Pipe a messy script through the gemini cli to format it and ensure your DRY principles are intact. Let the main agents build the house, and use the extensions to sweep the floors.
10. Quarantine Your Brainstorming (Protect Your Context)
In the middle of a complex implementation, you might suddenly wonder, "Would a different database structure work better here?" or "What if we rewrote this module entirely?" Do not ask the IDE.
Throwing speculative, wildly different ideas into your integrated tools will poison the context window. It confuses the agents about the current task and severely degrades their output. Always keep a browser tab open with the Gemini web app. Use the web app as your secure sandbox to explore tangents, debug weird philosophical edge cases, and ask "what if" questions without contaminating your active development environment.
Pro Tip: The Markdown Bridge
When you successfully explore a complex idea in the web app sandbox and find a solution, don't just paste raw code back into your IDE. Ask the web app to summarize the architectural decision and the required implementation steps into a clean markdown format. Save that as a.mdfile in your project folder. Now, your Antigravity agents have immediate, pristine context of the new plan without having to read through the messy brainstorming session that got you there.
Conclusion: Elevating from Coder to Architect
Mastering the Google Antigravity IDE isn't just about typing faster; it's about fundamentally shifting how you approach software development. By laying down strict ground rules, configuring specialized SKILLS, and strategically offloading tasks across the CLI, Code Assist, and web app, you transform from a solo coder into a lead architect managing a highly capable team.
When you orchestrate these tools correctly, you stop fighting the IDE and start leveraging it to build secure, maintainable, and well-documented applications at unprecedented speeds. Protect your context, manage your quotas wisely, and let the agents handle the heavy lifting while you focus on the big picture.
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