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⚡ AI Lessons

Dev.to · AI Dev Hub
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
Building an MCP tool-call test rig with the Python SDK in 2026
How I test MCP agent tool-call loops offline with a scripted transcript and the Python SDK, plus the bugs that cost me a week.

Dev.to · AI Dev Hub
🛠️ AI Tools & Apps
⚡ AI Lesson
1mo ago
Jinja2 vs Claude vs SkillSpec in 2026: same skill, 3 ways
I ran one skill definition through a Jinja2 script, a Claude prompt, and SkillSpec Converter. Here's what each got wrong.

Dev.to · AI Dev Hub
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1mo ago
Reading 50MB JSONL logs with a viewer in 2026
How a browser-based JSONL/NDJSON viewer turns giant newline-delimited logs into a filterable table.

Dev.to · AI Dev Hub
🤖 AI Agents & Automation
⚡ AI Lesson
2mo ago
Unleash vs Claude vs a canary planner: which one I'd use in 2026
I planned the same AI skill canary rollout three ways; only one produced deterministic stop conditions and a rollback checklist.

Dev.to · AI Dev Hub
🔐 Cybersecurity
⚡ AI Lesson
2mo ago
Auditing Chrome extension permissions in 2026: a 3-minute check
Read a Chrome extension's manifest and score its permission combinations before you install.

Dev.to · AI Dev Hub
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
MCP Inspector vs Postman in 2026: which one I actually use
I ran the same broken MCP tool through MCP Inspector, Postman, and my own validator to see which catches a bad definition first.

Dev.to · AI Dev Hub
🤖 AI Agents & Automation
⚡ AI Lesson
3mo ago
Building a rules-file MCP server in 2026
Build a local MCP server that generates your AI rules files from one prompt, plus the two bugs that cost me an afternoon.

Dev.to · AI Dev Hub
🧠 Large Language Models
⚡ AI Lesson
4mo ago
How token counters actually work in 2026, and when to trust them
Most "free token counter" tools in your bookmarks are not running the model's tokenizer. They're...

Dev.to · AI Dev Hub
🔧 Backend Engineering
⚡ AI Lesson
4mo ago
5 cron expression gotchas that catch experienced devs in 2026
Cron is one of those tools where the syntax looks obvious until a job fires at the wrong time and...

Dev.to · AI Dev Hub
☁️ DevOps & Cloud
⚡ AI Lesson
5mo ago
5 cron expression mistakes I made before reaching for a builder
Cron is one of those tools where the syntax looks obvious until you read your own expression a week...
DeepCamp AI