AI Tutorials & Practice
收录 AI 工具教程、提示词、安装部署、配置指南、开发实战与可复现步骤。
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TutorialsOrdinary
You Agreed to a use. Not to a Hallway That Didn't Exist Yet
You posted a photograph in 2014 to show your friends a night out. You understood what you...
Source: DEV Community
TutorialsOrdinary
My LLM eval cried wolf. Here's what I measured.
Disclosure first: I write digline, a small Python library for regression testing LLM applications....
Source: DEV Community
TutorialsOrdinary
I Hid a Rule in CLAUDE.md. Only One Reviewer Could Prove It Read It.
"Does your AI code reviewer read CLAUDE.md?" is the wrong question to ask. Almost any of them will...
Source: DEV Community · Claude
TutorialsOrdinary
A backend has to fail twice, and one failure is not an outage
The first version of my router failed over on the first error and flapped constantly. The reason...
Source: DEV Community
TutorialsOrdinary
How I Taught My AI Coding Agent to Stop Undoing My Design Decisions
TL;DR My AI coding agent kept "fixing" things I had broken on purpose — reverting...
Source: DEV Community
TutorialsOrdinary
The Verification Bottleneck in AI-Generated Software
AI can generate code faster than ever. That doesn't mean we're shipping correct software...
Source: DEV Community
TutorialsOrdinary
I Tackled the Planet of Lana Language Challenge by Building an AI Translator & Voice Synthesizer
The developers of Planet of Lana challenged fans to speak Novo Terali. Instead of a simple social shoutout, I built an end-to-end conlang translation engine, voice synthesizer, and quarantine panel.
Source: DEV Community
TutorialsOrdinary
What tool poisoning actually looks like in an MCP manifest
A tool description reaches the model as instructions. It is written by whoever published the server,...
Source: DEV Community
TutorialsOrdinary
I Ran a Fire Drill for Incident Response with a Local LLM (and Caught It Making Things Up)
A Japanese version of this is on Note. RoamSwitch is a network security tool I build solo for Mac...
Source: DEV Community
TutorialsOrdinary
MCP security scanners are wrong about four findings in five, and the cause is structural
An independent audit in April 2026 measured roughly a 78% false positive rate from regex-based MCP...
Source: DEV Community
TutorialsOrdinary
How I Built an AI Agent That Cut My AWS Bill by 40% (CrewAI + Bedrock)
Last week my AWS bill hit $300. I knew there was waste hiding somewhere. Forgotten EBS volumes, idle...
Source: DEV Community
TutorialsOrdinary
AI psychosis might be a result of subscription fatigue
Continuing my thoughts after my previous article, and having too much free time lately, I have been...
Source: DEV Community
TutorialsOrdinary
Dead Code Is More Dangerous Than Broken Code — How a Non-Homologous AI Caught the Blind Spot the AI Itself Had Rubber-Stamped
Dead Code Is More Dangerous Than Broken Code The opening: an AI confidently told...
Source: DEV Community
TutorialsOrdinary
Your AI Coding Agent Needs a Dependency Graph, Not Just a Repository
Tools like Claude and Cursor can generate a clean component in a couple of seconds. But generating...
Source: DEV Community · Claude / Cursor
TutorialsOrdinary
In a Few Weeks, I Won't Know How My Own App Works
I’ve been doing a lot of code reviews recently, and I’ve noticed something about my experience during...
Source: DEV Community
TutorialsOrdinary
7 Pieces of Advice for New Software Engineers
From a founding engineer in a startup: Don't refactor or do more work than needed unless it's...
Source: DEV Community
TutorialsOrdinary
DeepSeek Harness (DSH) vs Pi Agent: Everything you need to know
DeepSeek released its own agent harness this August. It crossed 66k stars in about a day (yes,...
Source: DEV Community · DeepSeek
TutorialsOrdinary
Two Viral Essays, One Warning: Your AI Code Is Fine, Your Understanding Is Gone
Last month I was on a call with my team lead at BS23, walking him through a change in one of our...
Source: DEV Community
TutorialsOrdinary
A Rule Can Be Specific and Still Be Too Broad
Update — v0.2.0 released. CauterRule is now live on GitHub and PyPI. It turns repeated agent...
Source: DEV Community
TutorialsOrdinary
Building a Schema With an AI Agent Without Naming a Single Column
Ask an AI agent for a discussion-board schema and you'll get one in about four seconds. Here is the...
Source: DEV Community
TutorialsOrdinary
SDD — Spec-Driven Development: o caminho para a qualidade na era do desenvolvimento com IA
A IA já escreve código. Muito código. Em poucos meses, "pedir para o agente fazer" virou parte do dia...
Source: DEV Community
TutorialsOrdinary
One diagram for enterprise AI adoption: five stages from identity to governance
This is a reference architecture for bringing AI into a company. It has five layers: users and apps,...
Source: DEV Community
TutorialsOrdinary
Defense in Depth Before an AI Agent Publishes to the Open Web
The Problem Is Irreversibility When an AI agent can clone a repository, mine a knowledge...
Source: DEV Community
TutorialsOrdinary
Build an AI Agent Error Triage Pipeline with n8n, Gemini & Slack
A full technical walkthrough of automating LLM agent error classification using n8n — webhook ingestion, dedup fingerprinting, Gemini structured output, fix playbook routing, and Slack reporting. Free workflow JSON included.
Source: DEV Community · Gemini
TutorialsOrdinary
Building a Vector Search Engine from Scratch with HNSW in Python
Every vector database tutorial opens with pip install pinecone and skips the part where you...
Source: DEV Community
TutorialsOrdinary
We read the schemas of 4,951 public MCP servers
Your MCP server's tool schema is the entire interface a model has. No README, no repo, no idea what...
Source: DEV Community
TutorialsOrdinary
Skybridge v2 ships the new MCP protocol and lets you test your app with Evals
Skybridge v2 adopts the MCP 2026-07-28 revision, replaces the single McpServer with a per-request factory, and ships @skybridge/test so you can assert that a model actually reaches your tools.
Source: DEV Community
TutorialsOrdinary
I let AI write 100% of my code for 30 days. Here's what broke.
Not "AI-assisted." Not "copilot suggestions I edited." I mean I made a rule: for 30 days, I don't...
Source: DEV Community
TutorialsOrdinary
Five Fact-Check Gates and a Signature Passed a Page Whose Source URL Never Renders the Number
A page that had already passed five machine gates and a human's signature turned out to cite a source URL that never renders the number it was cited for, because every check compared the fact-check sheet against itself instead of against t…
Source: DEV Community
TutorialsOrdinary
Qwen 3.8 4-bit Benchmark RTX 4090: 1-bit is a Trap
Ran Qwen 3.8 27B 4-bit quantization benchmarks on RTX 4090 and M-series Mac for local AI agents. Don't fall for 1-bit — here's why.
Source: DEV Community · Qwen
TutorialsOrdinary
We Kept Rebuilding Aiden for Six Months: From a HID Demo to a Physical AI Agent
Six months ago, Aiden was much closer to a hardware experiment than an Agent platform. The first...
Source: DEV Community
TutorialsOrdinary
Fine-tuning a content-moderation model on a laptop is easy. Trusting the result is not.
I fine-tuned a small language model to sort messages into safe or unsafe, the kind of check a...
Source: DEV Community
TutorialsOrdinary
Inside SFPU Overflow Bugs: How a 40-Year-Old Rounding Trick Breaks on Modern AI Accelerators
Inside SFPU Overflow Bugs: How a 40-Year-Old Rounding Trick Breaks on Modern AI...
Source: DEV Community
TutorialsOrdinary
Why I Built an AI Flyer Generator Around Editable Fields Instead of Prompts
I am building Postrai, an AI flyer generator for small businesses. The problem I kept seeing was...
Source: DEV Community
TutorialsOrdinary
MTP Explained: How Qwen and Gemma Predict Several Tokens Ahead
MTP (Multi-Token Prediction) is a technique that lets a language model predict several tokens ahead...
Source: DEV Community · Qwen
TutorialsOrdinary
Your Guardrail Test Still Passes With the Guardrail Deleted
Test whether an AI agent guardrail is still working: rerun the corpus with the gate deleted. Each bad input lands LOAD_BEARING, SHADOWED or MISSED.
Source: DEV Community
TutorialsOrdinary
We Tried to Make a Voice Agent Control a Real Device. Here's What Broke
Most voice-agent demos have a simple loop: The user speaks. The model thinks. The agent...
Source: DEV Community
TutorialsOrdinary
Claude Code Permission Rules and Hooks: The Precedence Order Nobody Documents Clearly
Most write-ups on Claude Code's permission system stop at "there are allow, deny, and ask rules."...
Source: DEV Community · Claude
TutorialsOrdinary
What AI Engineer Job Ads Actually Screen For
Decide to become an AI engineer and the first thing you meet is a framework list. Learn LangChain?...
Source: DEV Community
TutorialsOrdinary
My AI Advisor Had a Full Mental Breakdown at 1 AM. Here's How the System Kept Trading Anyway.
Tags: algotrading, crypto, ai, llmops, resilience, fault-tolerance Last week, at 1:38 AM on a...
Source: DEV Community