When Parallel Sub-Agents Fight Over One API's Rate Limit: A Shared Token Bucket That Caps the Aggregate
Run Antigravity 2.0 dynamic sub-agents in parallel and each one hits the same external API independently, pushing the aggregate rate over the limit and triggering cascades of 429s. Here is a shared token bucket that caps the aggregate proactively, with working code through a Redis version.
Why Your Antigravity Agent Stops Mid-Task with 429 RESOURCE_EXHAUSTED, and How to Fix It
When you hand a long task to an Antigravity agent, it sometimes halts halfway with a red 429 RESOURCE_EXHAUSTED. That is a rate-limit or quota signal, not a bug. Here is how I diagnose the three flavors of 429 in production, and how to keep your agent from stalling on the same wall twice.
Keeping the Antigravity Python API Stable in Production — Retries, Timeouts, and Circuit Breakers That Actually Work
A deeply practical guide to keeping Python services built on the Google Gen AI SDK alive under real traffic. We cover retry, timeout, circuit breaker, rate limit, and cost budgeting patterns with runnable code from an Antigravity workflow.
How to Fix AI API 429 Rate Limit, Authentication, and Timeout Errors: A Complete Troubleshooting Guide
Step-by-step solutions for 429 Rate Limit, authentication failures, and timeout errors across OpenAI, Gemini, and Claude APIs. Includes retry patterns, validation scripts, and prevention best practices.