Is the $100 AI Ultra Tier Worth It Solo? Measure the Break-Even from Limits and Parallelism
Whether the $100/month AI Ultra tier (5x the Pro limit) is worth it for an indie developer, framed as a break-even from how often you hit the cap and the effective throughput of parallel agents, with a calculator script.
Running Antigravity Behind a Proxy
Keep Antigravity working behind corporate proxies, SSL inspection, and hotel Wi-Fi: layer-by-layer diagnosis, certificate trust, NO_PROXY design, and connection profiles with a local LLM fallback.
Cutting Down 'Plausible but Wrong' RAG Answers — A Retrieval Evaluation Harness for Gemma 4 and Antigravity
Replace gut feeling with recall@5, MRR and faithfulness scores — a 30-question golden dataset and a small Python harness for evaluating a local Gemma 4 RAG stack.
Capping Parallel Agents With a Token Budget — Designing a Guard That Stops Runaway Cost
Running many agents in parallel quietly inflates your token bill. This is not about shrinking prompts — it is about a governance layer that meters spend in real time and cuts it off at a budget. Full design and TypeScript implementation, drawn from my own overnight jobs.
Five Weeks Letting Antigravity's Background Agent Refresh App Store Screenshots Across Four Apps
An operations log from running Antigravity Background Agent for five weeks to keep App Store screenshots for four wallpaper apps in sync across eight locales — including the caption-width validation step that cut manual fixes from 18 to 2.
Record & Replay for Antigravity Agents
How to deterministically replay a failed Antigravity Agent run offline, drawn from a month of running it across four production sites. Covers boundary recording, R2 + KV storage costs, PII masking, and a working TypeScript harness.
Splitting Pre-release QA Across Four Antigravity Subagents — A Design Note from a Solo Mobile Developer
A design note from a solo indie developer running six iOS / Android apps in parallel, sharing how Antigravity subagents are split into four parallel paths for pre-release QA. Covers the boundary decisions, prompt templates, termination rules, and merge logic with concrete examples.
Antigravity Multi-Agent State Tiers — A Three-Layer Design with Ephemeral, Journal, and Canonical
Before your Antigravity Background Agents and Sub-agents start mixing up their memory, split agent state into three lifetimes — ephemeral, journal, canonical — and map each to the right Cloudflare store. Includes a TypeScript approval gate for write-back, and what changed when headless runs stopped silently auto-approving.
One Month Splitting Antigravity's Inline Edit and Agent Mode Across Four Wallpaper Apps
A month of notes from running Antigravity's Inline Edit and Agent Mode across four production wallpaper apps — with real counts, the decision rule I wrote into AGENTS.md, a one-pass dSYM fix, and how credit cost factors in.
Running iOS Push Notification A/B Tests Weekly With Antigravity Agent — A Self-Improving Loop For Copy, Timing, And Segments
Drawing on years of indie iOS development across wallpaper and wellness apps, this article walks through a weekly Push Notification A/B loop powered by Antigravity Agent — the FCM bridge, BigQuery measurement, segment design, a D7 retention recovery story, and a dependency-free simulation that made me cut the number of arms and add a significance rule before declaring any winner.
Catching "Running but Doing Nothing" Antigravity Subagents — A 3-Layer Observability Pattern
Logs green, output zero — the silent failure every overnight Antigravity subagent eventually produces. A three-layer design (Heartbeat / Output Trace / Decision Log) that tells missed starts, stale inputs, and write-less loops apart, with the SQL and code to copy.
Apple Search Ads × Antigravity Agent: Autonomous Keyword Bid Tuning Notes from an Indie iOS Studio
How I delegated Apple Search Ads keyword bidding to Antigravity sub-agents for an indie wallpaper app portfolio. JWT auth, ROAS / CPI bid policy, and a Crashlytics-driven safety net.