All Articles
Catching only the deprecations that touch you — feeding the official changelog to url-context
I found out an image model was being shut down three days before the deadline. Here is a deprecation radar that reads the official changelog through url-context and surfaces only the models I actually use, with working Python and the over-alerting tuning I had to do in production.
Gemini 3 Multi-Tool Agents: Function Calling + Built-in Tools + Context Circulation in Production
A hands-on look at Gemini 3 multi-tool agents: combining Built-in Tools with Function Calling, Context Circulation, and parallel tool IDs, with measured latency numbers and the pitfalls I hit in production.
When Two Managed Agents Fight Over the Same Repo: External Leases and Fencing for Isolated Sandboxes
Every Managed Agents run gets its own isolated sandbox, so a local lock cannot stop two runs from touching the same repo or record. Here is how I serialize them safely with an external lease and a fencing token.
When Gemini API Leaks Japanese Into Your English Output Once in a While — Field Notes on Measuring the Contamination Rate and Tightening It in Stages
You told Gemini to answer in English, and 3 out of 100 runs slip a Japanese sentence into the tail. Here is why you cannot stop that 'once in a while', and a production pattern that measures the contamination rate as an SLO and tightens it with graded recovery, with working code.
Catch Near-Duplicate Posts Before You Publish — a Topic-Cannibalization Gate with Gemini Embeddings
Once a blog passes a few hundred posts, new articles start cannibalizing old ones in search. This walks through a pre-publish gate that embeds each post's meaning with gemini-embedding-2 and blocks drafts that sit too close to something you already wrote — with runnable code and how to pick the thresholds.
Catching the Rows That Quietly Failed Overnight: A Per-Row Retry Ledger for the Gemini Batch API
A SUCCEEDED batch job is not the same as all-rows-succeeded. From running nightly batches as a solo developer, here is a per-row result ledger, a transient-vs-permanent failure classifier, selective retries, and a guard against retrying permanent failures forever, with a working SQLite state machine.
Before the August 17 Gemini Image Model Shutdown: Inventory Where You Actually Call Them First
Some Gemini image generation models retire on August 17. Before choosing a replacement, here is how to inventory which models are actually being called, and from where, using your request logs.
Your Tool Results Are Quietly Eating the Conversation — Handle Passing to Keep Gemini Function Calling Contexts Lean
Tool results linger in Function Calling history and compound your input tokens every turn. Two implementations — a token-budgeted compactor and handle passing — cut my measured input by roughly 8x, with the pitfalls I hit along the way.
Building AI-Powered iOS and Android Apps with the Gemini API — Image Recognition, Voice Analysis, Chat, and Monetization
Architecture patterns, cost optimization, and monetization for adding image recognition, voice analysis, and AI chat to iOS/Android apps with the Gemini API — updated with Gemma 4 routing and the mandatory API key restriction change.
Your Night Batch Is Causing the Morning 429s — Priority Admission Control for a Shared Gemini Quota
When bulk jobs and interactive features share one project's RPM/TPM, the bulk lane wins by default. A priority token bucket design with measurements: 429 rate 3.2% down to 0.03%.
Stop Making Listeners Wait for the Whole File — Wiring Gemini TTS Streaming into Your Delivery Path
gemini-3.1-flash-tts-preview now streams audio via streamGenerateContent. A delivery path with 1.8s to first sound, covering PCM boundary handling, sentence-level resume, and a fallback for preview shutdown.
A Webhook Is a Claim, Not a Fact — Three Layers of Defense for Your Gemini Webhooks Endpoint
Your Gemini Webhooks receiver is a public URL, which means forged events, replays, and duplicate deliveries are all on the table. This walkthrough builds a three-layer defense — reachability checks, dedupe, and a lightweight handler that re-fetches truth from the API — with working FastAPI and SQLite code.