Three things I had to fix before my status line could tell me what a session cost
Getting real session cost into a custom Antigravity CLI status line took three fixes: how the script reads stdin, how to tell whether your build sends a cost field, and how to keep a usage ledger that does not double-count.
Accounting for Which Agent Spent What: A Cost Attribution Design by Task
Your month-end bill is one number, but running multiple agents on Gemini 3.5 Flash hides which task ate the cost. Separate from a budget guard, I share a cost-attribution accounting design that maps usage to per-task and per-site cost, with a solo-operator implementation and numbers.
Your Antigravity LLM App Drifts on Cost and Quality While the Dashboard Stays Green — Instrumentation Field Notes
Watching only total cost and latency hides the slow drifts that hurt. These are field notes on attributing telemetry by feature, tenant, and prompt version so you catch quality regressions and cost spikes early.
Antigravity vs Cursor vs Bolt vs Lovable — An Indie App Developer's Honest Cost and Quality Comparison
A six-month real-world comparison of Google Antigravity, Cursor, Bolt, and Lovable for indie app development. Actual monthly costs, code quality for App Store submissions, implementation speed, and a project-type framework for choosing the right tool.