Raw HTML vs Rendered: A Quick Check of What Crawlers Actually Read on Your Homepage
Owners often ask why a search engine or an AI assistant describes their business strangely, or not at all. One common, boring cause: the words on th…
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Keep Prices Out of the Model: A Rate-Freshness Guard for Jewellery WhatsApp Assistants
A WhatsApp assistant for an Indian jewellery store will be asked about prices constantly. Today's rate, making charges, the cost of a design in a gi…
The Test Wasn't Wrong. It Was Answering an Older Question.
The Test Wasn't Wrong. It Was Answering an Older Question. I shipped a change I had reviewed, simulated, and deployed. An hour later my acceptance s…
Evaluate RAG retrieval before changing your chatbot prompt
Before tuning a prompt, check if the retriever actually surfaced the evidence. A fluent answer often hides a missing document. And a retrieved docum…
APIWatch: Checking API Traffic and Subscription Controls with WSO2 API Manager
I recently worked on a project called APIWatch using Python and WSO2 API Manager. It is a small monitoring tool that reads API traffic logs and help…
Насколько сильно Random State влияет на качество ML-модели? Проверяем на 100 экспериментах
Представим ситуацию: мы обучили модель, получили Accuracy 77% и решили немного изменить параметры. Запустили обучение повторно — теперь получилось 7…
PitGraph: building an F1 strategist whose memory is a graph
How I built a multi-agent race-strategy assistant on FalkorDB in four days for Graph Hacks, and what the graph made easy (and hard). Ask a Formula 1…
Как ускорить ручное тестирование интеграций с RabbitMQ с помощью библиотеки pika
Чаще всего для ручного тестирования интеграций с RabbitMQ используют UI-клиент. Но не всегда это удобно и позволяет тестировать быстро, особенно ког…
Model Context Protocol (MCP) for Local LLMs: Connect Ollama & vLLM to Workstation Tools
📌 The Executive Verdict: The Model Context Protocol (MCP) Decoupling Anthropic's open-standard Model Context Protocol (MCP) resolves the fundamental…
Build a 10-Case Eval Set for Your AI Agent and Run It on Every Change
Your agent worked in the demo. Then you tweaked the system prompt, swapped the model, or renamed a tool argument, and now you're not sure whether it…
I Built a Product Listing Writer That Costs $0 Per Listing to Run
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built A friend who sells on Etsy told me her weekly r…
A(5) = 5: four matrices finish the case t = 5
This is from MV2's open notebook on Kakeya-type problems ( https://github.com/munimtechnologies/kakeya-small-fields ). It continues the earlier post…
48-Hour Field Notes: Exit Code 137 at Hour 31 Was Not a Bug in My Code
I run long jobs on purpose, because short jobs lie to me in pleasant ways. A loop that finishes in ninety seconds never teaches you what happens whe…
Testing an AI Refund Workflow: Allow, Deny, Modify, and Escalate
A support agent handling a refund might need to look up a customer, submit an amount, and explain why the refund is appropriate. Each step raises a…
Properties Without Witnesses Are Decorations: A Falsifiability Gate for Agent Patches
A property that passes on the patched tree and on the pre-patch tree carries no information. That is the first thing to measure, before you trust an…
From Paper to Insights: Build Your Own Private Medical RAG with Pinecone, Ollama, and PaddleOCR
Let’s be honest: looking at a blood test result or a medical lab report feels like trying to read ancient hieroglyphics. You see numbers like Albumi…
Finding the Bugs I Built an AI Agent to Prevent: Building Deterministic Guardrails with LangGraph & Python
`` A real debugging log: fabrication bugs, deployment gaps, and false test passes found and closed across 6 rounds of adversarial testing. System pr…
SameSite=Lax doesn't protect you from login-CSRF | Xiliux Blog
We built an identity server — Bachué — with password login, a second factor, and cookie sessions. The cookies carry SameSite=Lax , and we took for g…
How to Humanize AI Text Without Losing the Content: A Diff-Based Review Workflow
Any rewrite tool, whether it's a humanizer, a paraphraser or "ChatGPT, make this sound natural," has the same failure mode: it improves the voice an…
Claude Sonnet 5.5 and Haiku 5.5 in Python: Two SDKs, Prompt Caching and Haiku's 100K Pricing Cliff
Short answer: call claude-haiku-5-5 for classification, extraction, routing and summaries, and claude-sonnet-5-5 for multi-step coding and long tool…
Counting OpenAI Tokens per Request in FastAPI — Without Touching My Use Cases
I'm rebuilding evorag , a Python retrieval service: it chunks documents, embeds them with OpenAI's text-embedding-3-small , stores vectors in Postgr…
Don’t Trust the Answer, Trust the Log: Lessons from Building an AI Expense Auditor
canonical_url: https://valentiuskryptix.com/3-surprising-failures-from-testing-my-ai-auditing-agent/ A chatbot answers questions. An agent is differ…
I open-sourced a network monitor — strangers on the internet shipped the Windows port
Two weeks ago I open-sourced Snitch , a privacy-first network traffic visualizer. Last week it hit 238 GitHub stars and got picked up by one of the…
SecureLocal AI: A Local-First Python Security Auditor for Hacktoberfest Week 2
What I built For Hacktoberfest 2026 Week 2's Side Hustle challenge, I built SecureLocal AI : an offline-first desktop tool for a first-pass review o…
A Passed options Dict: How PyJWT's decode() Silently Rewrote a Caller's Configuration
A Passed options Dict: How PyJWT's decode() Silently Rewrote a Caller's Configuration Library bug reports usually describe a boundary that failed. T…
DabbaETA: a 'will this tiffin be late?' predictor that never sends a customer's address to the cloud
This is a submission for the HF26 Challenge: Side Hustle It's 1 PM and the phone won't stop ringing If you run a small tiffin service in India, you…
Weekend Build Log: A Model-Swap Harness for a Side Project on Free Endpoints
Three commands decide whether a weekend side project survives a backend change. The app built this weekend is deliberately small: it turns a build l…
Checkout Rollback Safety: 4 SaaS App Fingerprinting and Error-Grouping Signals
Short answer: group checkout errors by exception type and stable application stack frames, then compare each fingerprint across release and environm…
Your retry logic has never seen a real 429. Here is how to test it with a local fault-injecting mock
Most LLM client code has a retry branch that has never actually run. The provider returns 200 in every test, so the 429 , 500 and timeout paths sit…
Beyond Transcripts: Building an AI-Powered Empathy Engine for Mental Health
In the world of mental health counseling, the "magic" happens in the nuances—the pauses, the shifts in tone, and the emotional resonance between the…