All Articles
When the Deploy Was Green but Users Still Saw the Old Build: Field Notes on a Gate That Verifies Your Shipped Commit Reached the Edge
When a deploy reports success but production keeps serving the old build, a post-deploy gate that verifies your shipped commit actually reached the edge via a build stamp closes the gap. Field notes with real operational numbers.
I Changed One Line in AGENTS.md and Broke the Agent — Regression-Testing the Instructions Themselves
Every time you edit the instructions you hand an agent — AGENTS.md, skill text — some other task quietly breaks. Here is a regression harness whose subject is the instructions, not the code: fixed tasks, deterministic assertions, and a way to wire it into unattended runs.
Passing API Keys to Agents Safely: Runtime Env Injection and Log Redaction
How to hand secrets to an Antigravity agent without leaving them in your repo or your logs, using runtime environment injection and output masking.
The Gate That Stops Visual Damage Before You Hand Bulk Image Optimization to an Agent
When an agent bulk re-encoded a few hundred wallpaper assets, a handful came back with dulled color. Size-reduction alone cannot catch that. Here is how to design a gate that stops bad conversions before merge using three axes — SSIM, ΔE, and file size — with a checker that runs on Pillow and scikit-image.
Pour Your Unattended Run Logs into SQLite and Count Failures Across Every Run
Running Antigravity CLI on an unattended schedule leaves a growing pile of JSON Lines logs. Instead of grepping files, I pour them into a tiny SQLite database and answer 'which step fails, and when' with a single query. Here is the ingest script, six diagnostic queries, and six weeks of real numbers.
Widening one panel made my agent reviews faster
A field note on turning two quiet additions in Antigravity v2.2.1 — Conversation Width and broader syntax highlighting — into a faster way to read the diffs your agents produce. Small display tweaks, but they changed how quickly I could review.
What to Delegate to an Antigravity Agent and What to Keep by Hand, After Two Weeks
After two weeks of handing my daily solo-dev tasks to Antigravity agents, a clear line emerged between the work I was glad to delegate and the work I had to pull back. A retrospective with the operational log.
The Day My Own DSL Stayed Gray: Adding a Minimal TextMate Grammar to Antigravity
When a custom config file you use every day renders as flat gray text, misreads pile up. This walkthrough builds a minimal TextMate grammar and language-configuration so Antigravity highlights your own file type, with working code and the pitfalls that trip people up.
The Scarier Permission Was Reach, Not Write: Locking an Agent's Outbound Traffic to an Allowlist
When I hand real work to an agent, the thing I guard most isn't file edits, it's where it connects. Here is an 80-line deny-by-default egress gate, plus what 21 nights of unattended runs revealed about the traffic I never saw.
Clock Design for Agents: Separating Monotonic and Wall Time to Protect Long Runs
In scheduled and overnight agent runs, computing timeouts, retry backoff, and rate-limit windows from the wall clock breaks in quiet, hard-to-debug ways. This piece walks through a small Clock abstraction that splits monotonic from wall time, with a decision table and testable code.
When A2A Tasks Sat Stuck in 'working' — Field Notes on Tracing State Transitions to Detect Stalls
Antigravity's A2A coordination fails less by crashing and more by sitting in 'working' without progress. This walks through recording state transitions as one timeline and naming a stalled task down to which agent and which edge froze, along with what running agents daily has taught me.
Moving Antigravity to a New Machine: What Carries Over, What You Rebuild, and What Belongs in the Repo
Settings Sync restores your theme and keybindings in minutes, but auth tokens, workspace indexes, and local LLMs do not follow. A practical three-layer model for migrating Antigravity to a new machine without losing a day.