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@github-actions github-actions released this 10 Sep 13:33
· 48 commits to main since this release
v1.3.0
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Antigravity Proxy v1.3.0 — Gemini 3.8 Flash, Modular 5-Tab Gateway, Smart Tool Pruning & Dual Quota Analytics

We are excited to release Antigravity Proxy v1.3.0, a major feature release bringing first-class support for Google's newest Gemini 3.8 Flash model family, an overhaul of the Web Dashboard into a modular 5-tab gateway, proactive Smart Tool Pruning, and accurate Dual Quota Bucket Analytics.

🌟 Highlights & Key Features

1. ⚡ Gemini 3.8 Flash Family & Smart Model Routing

  • New Default Model: Upgraded default model to gemini-3.8-flash-high for lightning-fast responses with deep reasoning capabilities.
  • Full Gemini 3.8 Lineup: Added support for gemini-3.8-flash-high, gemini-3.8-flash-low, and gemini-3.8-flash-tiered.
  • Deprecation Fallback: Automatically redirects legacy gemini-3-flash-agent calls to gemini-3.8-flash-tiered.
  • Agent Request Classification: Automatically classifies and tags tool/function-calling requests with upstream agent request types.
  • Clean /v1/models Catalog: Advertises only verified, authentic models to client applications.

2. 🤖 Enhanced Claude Code & claude-cli Integration

  • Native Handshake Endpoints: Added Anthropic and Claude OAuth hello endpoints to provide seamless drop-in compatibility with claude-cli.
  • Dynamic Model Discovery: Claude launcher now dynamically queries available models from the proxy rather than relying on a hardcoded list.
  • Anthropic Aliases: Full namespace support for anthropic.* model aliases.

3. 🧠 Smart Tool Pruning & Context Compactor v2

  • Smart Tool Pruning: Proactively truncates bulky historical tool outputs in long-running agentic conversations, dramatically reducing context bloat and avoiding token limits.
  • Auto-Compactor v2: Upgraded context compaction engine with extended memory windows, rich previews, and adaptive thinking support. Dedicated gemini-3.8-flash-low to compaction duties while keeping gemini-3.1-flash-lite for lightweight background tasks.
  • Extended Capabilities: Added native token counting, Google Trawler URL fetcher, and Structured Outputs schema parsing.

4. 📊 Dual Quota Analytics (5h & Weekly Windows)

  • Dual Quota Breakdown: Full visibility into both the 5-hour burst window and 7-day rolling quota windows via v1internal:retrieveUserQuotaSummary.
  • Periodic Background Sync: Automatic quota synchronization in the background without adding latency to chat requests.
  • Accurate Metrics & Persistence: Fixed bottleneck calculations for Gemini and 3P (Claude/GPT), accurate rate-limit states, and persistent request counters across pool reloads.

5. 🎨 Brand New Modular 5-Tab Dashboard UI

  • 5 Dedicated Tabs:
    • Accounts: Multi-account pool health, OAuth management, and priority switches.
    • Analytics: Real-time dual quota visualizers, 3P KPI cards, and usage graphs.
    • Playground: Redesigned testing arena with foldable "Thinking" accordions, KaTeX/math equation rendering, and robust clipboard copying.
    • Integrations: Quick-start configuration guides for Claude Code, Cursor, Cline, LibreChat, and OpenAI clients.
    • Settings: Proxy-wide cache, compactor, and security configurations.
  • Responsive Layout: Optimized for both mobile devices and high-resolution desktop screens with zero header button clipping.

6. 🔒 Security & Upstream Protocol Sync

  • Isolated Configuration: Account persistence is strictly isolated to ~/.config/agy-proxy/accounts.json, ensuring native Antigravity CLI/IDE token files are never modified or overwritten.
  • 401 Auto-Failover: Transparent force-refresh and seamless rotation across pool accounts upon receiving upstream unauthorized errors.
  • Upstream Sync: Synchronized upstream User-Agent protocol to antigravity/cli/1.1.28 (cl=978129418) across both the proxy server and Cloudflare Worker.

📦 Quick Install & Upgrade

Via pip / uv:

pip install --upgrade agy-proxy
# or using uv:
uv tool upgrade agy-proxy

Self-Update Command:

agy-proxy update

1-Click Install Script (Linux / macOS):

curl -fsSL https://raw.githubusercontent.com/kqlio67/agy-proxy/main/install.sh | bash

1-Click Install Script (Windows PowerShell):

irm https://raw.githubusercontent.com/kqlio67/agy-proxy/main/install.ps1 | iex

Docker / GHCR:

docker run -d -p 8045:8045 -v ~/.config/agy-proxy:/root/.config/agy-proxy ghcr.io/kqlio67/agy-proxy:latest

Full Changelog: v1.2.0...v1.3.0

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