Semantic Search Over Your Own Codebase with Gemini Embeddings and sqlite-vec: An Incremental Index Keyed on Git Blob Hashes
A build log for semantic search scoped to your own repository, using Gemini embeddings and sqlite-vec. Covers an incremental pipeline that skips re-embedding unchanged files via git blob hashes, with measured index size and query latency.
Building a Live Wallpaper That Doesn't Drain the Battery — Designing the WallpaperService Render Loop Around a Power Budget
Live wallpapers quietly burn battery because they keep drawing when nothing is visible. Here is the WallpaperService.Engine design I used to cut power draw by roughly 60% in a real wallpaper app, built around visibility, idle, and thermal gates.
Never Miss a Managed Agent Completion: Pairing a Serverless Receiver with Polling Reconciliation
A cloud Managed Agent can finish while you are not watching, and the webhook that should tell you can quietly fail. Here is a serverless receiver on Cloudflare Workers paired with polling reconciliation, and a state machine that recovers every completion within minutes.
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.
Keep the Self-Debugging Agent Away From Live Ads: Three Layers Against AdMob Invalid Traffic
When Antigravity 2.0's real-browser self-debug renders a live AdMob unit, every pass counts as an impression, and Google may read it as invalid traffic. Here is a three-layer setup, with measurements, that keeps the agent from ever touching a production ad.
When Your Agent's Commits Pick Up Junk Files: Fixing It With Staging Scope and a Message Convention
Agents tend to run git add -A, sweeping .bak files and caches into your history, and leave a one-word message. Here is how a staging allowlist, a preflight, and a fill-in message template stop it.
Protecting Your Agent Stack's Known-Good State with a Single Lockfile — Change-Budget Design for an Era of Simultaneously Moving Parts
When the IDE build, CLI, model, and dependencies all move at once, you can no longer tell which one caused a regression. Here is a change-budget design that pins your known-good state to one lockfile, with working code and operational logs.
Make the Self-Debugging Agent Walk the Logged-In and Post-Paywall Screens
By default, Antigravity 2.0's real-browser self-debug only sees the logged-out free view and reports success. To catch billing regressions, inject an authenticated session and paid state into the agent's browser and force coverage with assertions.
Paid, but the Ads Won't Go Away — Closing a StoreKit 2 Transaction.updates Launch Race with Antigravity
How I traced a StoreKit 2 launch race that dropped transactions arriving right after startup, pinned the listener to the app's lifetime instead of a view's, reconciled with currentEntitlements, and let Antigravity turn it into a StoreKitTest regression suite.
Point Real-Browser Self-Debug at a Throwaway Preview, Not Localhost or Production
Antigravity 2.0's real-browser self-debug is genuinely useful, but aim it at the wrong place and it touches production data. Here is a practical way to confine it to a per-branch throwaway preview and neutralize email, billing, and webhook side effects.
When AppEnum Breaks in App Intents — Designing EntityQuery so Siri Can Pick From a Catalog That Grows Every Day
Writing an App Intents parameter with AppEnum works fine while the options are fixed, but it cannot survive content that grows daily. Here is the AppEntity + EntityQuery design that lets Siri and Shortcuts correctly pick from a dynamic catalog, including identifier stability and Spotlight pitfalls.
When Universal Links Break Silently — Catching Association Drift with an Agent-Run Verification Gate
Universal Links and App Links fall back to the browser with no error when your association files or entitlements drift apart. Here is a design that generates the files from one source of truth and hands weekly and pre-release checks to an agent.