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.
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.
I Only Want to See the Lines the Agent Added: A Changed-Lines Convention Linter
I asked an agent for a small fix, it touched an old file, and the linter threw 13 warnings with no way to tell which were the agent's. Scoping the linter to only the added lines dropped 13 to 3 — about 77% less noise. Here is how to pull added lines out of a diff and check only those, with working code.
Nobody Is There to Say Yes: Writing Unified Permissions as an Unattended Contract
The v2.2.1 unified permission system assumes a person is watching. On a 3 a.m. scheduled run, that assumption quietly breaks. Here is how I declared the policy up front as an allow / deny / queue contract so an unattended agent never stalls on a prompt no one can answer.
Are You Actually Using Every Permission You Granted? Tightening Antigravity's Unified Permissions from Real Usage Logs
Once you flip a unified permission policy to 'allow everything,' unused grants quietly pile up. This is the grant-to-usage reconciliation loop: match granted permissions against your action logs, revoke what was never exercised, and narrow what's too broad — with working TypeScript and real numbers from solo operation.
An Agent's ORM Code Made p95 Five Times Slower — Measuring Query Counts and Blocking Them in CI
N+1 queries slip past code review because the code looks correct. Here is a CI gate that measures query counts and judges them by their slope against input size, with working code and real numbers.