Free Antigravity + ECC: Legit AI Coding Powerhouse
Pair Google Antigravity's free weekly quota (unlimited tab completions/commands) with Everything Claude Code skills for TOS-compliant, production-ready AI coding workflows.
Unlock Real Work from Antigravity's Free Tier
Google Antigravity's free tier provides a weekly refreshed quota with unlimited tab completions, unlimited command requests, and full access to core features like agent manager and browser integration—ideal for students or budget developers doing actual coding. Models include Gemini 3.1 Pro High, Gemini 3.1 Pro Low, and Gemini 3 Flash; higher plans may add Claude Sonnet 4.6 Thinking, Claude Opus 4.6 Thinking, or GPT OSS 100B based on availability. Use Gemini Flash for speed, Pro for reasoning. Avoid third-party logins, which violate TOS; stay within Antigravity for legitimacy.
This tier enables real productivity because raw model access pairs with structured guidance, turning vague prompts into reliable outputs without premium costs.
Install ECC for Reusable Coding Intelligence
Everything Claude Code (ECC) repo delivers battle-tested rules, skills, workflows (planning, TDD, code review, security, frontend/backend patterns, verification), compatible with Antigravity via open skill standard (.md files with descriptions loaded on relevance).
From project root: git clone ECC repo inside project, cd everything-claude-code, npm install, cd .., dry-run ./everything-claude-codeinstall.sh target antigravity typescript. This populates .agent/rules, .agent/workflows, .agent/skills (backward-compatible with aagent/ folders). Restart conversation; Antigravity auto-detects skills by description or invoke explicitly (e.g., "use planning workflow security-focused").
Result: Persistent habits reduce prompt fatigue—no re-explaining reviews/tests/plans. Project-local installs keep rules tailored (e.g., Next.js vs. Python), cleaner than globals in ~/.gemini/antigravity/skills.
Scale Performance by Task with Modes and Skills
Fast mode handles quick edits/renames/fixes snappily; Planning mode excels for deep research, features, debugging, pairing with ECC's heavier workflows like plan-verify, code review. Start new chats to refresh skill list; skills load contextually.
Combo maximizes quota: Flash+Fast for small tasks, Pro+Planning+ECC for complex. Yields senior-engineer reviews, TDD loops, Stripe research without one-off prompts, boosting daily output over leaderboard-chasing.
Navigate Limits and Maintenance
Free tier has weekly limits—fine for most, but heavy sessions hit caps; upgrade to AI Pro/Ultra for more. Model access varies by plan/rollout. Update ECC: git pull in repo, npm install, re-run installer.
Antigravity ships with basics (browser, commands), but ECC elevates defaults. Trade-off: Free entry sacrifices unlimited scale, but delivers 80% pro value for zero spend, especially starters.