A model that returns almost-valid JSON costs you more than one that fails loudly. The almost-valid reply slips past a quick glance, lands in your database, and breaks a report three weeks later. This tutorial shows you how to stop…
В объекте Message предусмотрены необязательные text и entities для текстовых сообщений. Подпись к медиа использует caption и caption_entities. Каждый список описывает соответствующую строку. Фотография с подписью не является текстовым сообщением с неожиданно пустым телом: обработчик, который читает только text, может потерять…
Do not substitute the text of a replied-to message, a forwarded source or a generated summary for the current message body. Those are different pieces of context. If the product needs them, store their role explicitly. Otherwise a manager may…
I build and run API Indonesia, a REST API for Indonesian public data. This is a short note on getting its n8n node listed. API Indonesia has had an n8n community node, n8n-nodes-api-indonesia, since September. As of 29 October it also has a…
Your welcome sequence is a state machine you never drew. Most small teams build it once, in a drag-and-drop builder, and then never look at the edges - the transitions where a real person actually lives. That is where the expensive…
When I start a new side project, the same handful of pages end up open in my browser before I write any code. Some are giant lists that save hours of searching, a couple are small tools that fix one…
Disclosure: I build 1ToolRing, one of the options below. The other options are real alternatives and I say where they fit better. Per the same page: 100 queries a day are free, then $5 per 1,000 queries, capped at 10,000 queries a day. Each query…
There was a moment when I nearly sent a mailing list without reading it line by line. Not because the list was short. Because every line looked fine. [email protected] — plausible. [email protected] — plausible. [email protected] — plausible enough that my eye kept sliding…
Last February I inherited the billing code for a small SaaS. The marketing page promises a 14-day trial. A customer signed up on March 1, 2026, and her card got hit at 00:00 UTC on March 15 — which was 7 p.m. on March 14 in New…
Anthropic caches context per upstream account with a 5-minute TTL. Low-cost relays pool dozens of keys using round-robin routing. Request 1 hits key A (+25% write fee). Request 2 routes to key B. Key B has no cache, triggering another +25% write. Without session affinity,…
HTTP services, microservices, RPC, auth, caching, and resilient API design.
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