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Your agent starts a run with cache_read_input_tokens at 40K and climbing. Twelve tool calls later, reads drop to zero and cache_creation_input_tokens jumps to the full conversation length — on every single turn. Nothing in your prompt changed. No timestamp, no reordered tool, no model switch. The prefix is byte-identical. You just hit the 20-block lookback window, and it is the single most expensive thing about Claude prompt caching that nobody puts in their retro. TL;DR ...

This post is my submission for DEV Education Track: Build Multi-Agent Systems with ADK . Finding the perfect, thoughtful gift shouldn't feel like a chore. Whether it's for a birthday, anniversary, or holiday, we all experience gift-buying paralysis: Generic suggestions : "Just buy them a mug or a generic gift card." Budget anxiety : Falling in love with an idea only to find out it costs 3x what you planned to spend. Missing the subtle nuances : Forgetting that someone d...

Most developers assume running a real web platform on AWS costs a fortune. Mine doesn't. HomeServerLab — a free AWS learning platform with an AI assistant, tutorials, OAuth login, and an Apps Marketplace — runs for less than $1/month in infrastructure costs. Here's exactly how. The stack and what it costs AWS Lambda Every route on the site is handled by a single Lambda function written in Python. No EC2, no always-on server, no idle costs. Lambda charges per invocation and per GB-second of c...

Today I'm releasing Pythonaibrain-NLP 0.2.0 , the latest public release of my Python NLP framework. The package is now available on PyPI, and the complete source code, documentation, architecture notes, examples, and tests are available on GitHub. PyPI: https://pypi.org/project/Pythonaibrain-NLP/ GitHub: https://github.com/DivyanshuSinha136/Pythonaibrain-NLP Install it with: pip install pythonaibrain-nlp Why another NLP framework? Pyth...

In this article, we review useEditorContext in n8n codebase. You will learn: Composables in Vue useEditorContext as composable in n8n. Composables in Vue In the context of Vue applications, a "composable" is a function that leverages Vue's Composition API to encapsulate and reuse stateful logic. When building frontend applications, we often need to reuse logic for common tasks. For example, we may need to format dates in many places, so we extract a re...

We've all been there: a client needs a quick QR code for a print campaign, or a short link for social media. You search Google, click the first result, and realize you need to create an account, verify your email, and potentially pay after 14 days. To solve this friction, we built klick.tools . It's a collection of simple web tools that just work - no signup, no expiration dates, and full GDPR compliance. What's inside? QR code generator: 7 content types (URL, text, WiFi...

When I first published Swarm on GitHub, most questions weren't about Rust or MCP. They were about timing and categorization: "We just need a lightweight gateway for multi-provider routing; agents feel like overkill." "We already run an orchestration framework; why would we replace our proxy?" This reaction highlights a false dichotomy currently plaguing the AI infrastructure ecosystem: the assumption that a gateway and an agent orchestrator must be two completely different product...

A sequence I cut to a music bed was three frames out at the first transition, nine at the second, and by the sixth segment nothing lined up with anything. I had asked every generation for ten seconds. Every generation had returned a file that was not ten seconds. Nothing in the API said so. The request took duration: 10 , returned 200 , and produced an MP4 whose container duration was 8.708 . No warning field, no note in the response body, and — the part that actually cost me the afte...

This is a submission for DEV's Summer Bug Smash: Clear the Lineup powered by Sentry . A survey widget should not be able to take down the page it is embedded on. This one could: a single API response with a null body threw an uncaught TypeError in the visitor's browser. Sentry's bot found it, filed it as a GitHub issue, and Seer pointed at the exact line. Here is the fix. Project Overview Formbricks is an open-source survey and experience-management platform. Websites...

A few years ago, I discovered the Nostr protocol 1 thanks to Jack (Jack Dorsey) 2 . I've been using it actively ever since. I already had an interest in distributed social networks for years. I tried ActivityPub 3 for a while, but something just didn't click. Around that time, Jack started ATProto 4 within Twitter, but something felt off there too. I hadn't even bothered trying the methods that came before those anyway. It always bothered me—and many others, of course—that the internet bec...

Dockerize Your LLM Proxy: One Container for Free Multi-Provider Access Want free LLM access in a repeatable, portable way? Run it as a container. Why Docker Single command to deploy anywhere Isolated environment with consistent deps Easy to put behind a reverse proxy DAVIL Cod in Docker DAVIL Cod ships a Dockerfile. Build and run with provider keys as env vars: docker build -t davil-cod . docker run -p 4000:4000 \ -e PROVIDER_GRO...

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