My new Pluralsight course published! Prevent Secret Exposure with Secret Scanning (GH-500): www.pluralsight.com/courses/gh50...
04.03.2026 22:53
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My new Pluralsight course published! Prevent Secret Exposure with Secret Scanning (GH-500): www.pluralsight.com/courses/gh50...
I built an AZ-104 Cert Buddy in VS Code + GitHub Copilot: agents + skills that generate exam-real practice questions, grade answers with doc-grounded explanations, and create labs you can validate in your Azure subscription.
Video: youtu.be/9RZWTgNTy90
Repo: github.com/timothywarne...
Just retook AZ-104 fresh after letting it expire. Candid take:
🔥 Hardest Microsoft cert exam, period
🧠 It's a data synthesis test disguised as a technical exam
📦 Azure Storage gets HEAVY coverage
🚫 Stop worrying about perf-based labs and subnetting
Full NDA-friendly breakdown:
youtu.be/AjFPRg0QTac
My GH-100 (GitHub Administration) exam review is up. Real-world admin skills (SSO/SCIM, RBAC, audit logs), plus a few “why is this question written like that” moments.
Study guide: learn.microsoft.com/en-us/creden...
Video: youtu.be/N8HrQGWBhjM
Yo! I built a PowerShell utility for parallel Claude Code sessions via git worktrees.
Start-ClaudeWorktree: one command to spin up a sibling worktree + new terminal tab with Claude running.
Stop-ClaudeWorktree: merge back, nuke the worktree, done.
Gist: gist.github.com/timothywarne...
Hey there! If you're studying for the GH-500 GitHub Advanced Security (GHAS) certification, check out my latest Pluralsight course, Enhance Software Supply Chain Security with Dependency Review (GH-500)!
www.pluralsight.com/courses/gh50...
I realized I was using "token" sloppily. Not wrong exactly, just imprecise.
This quick video separates tokens, identifiers, and symbols by layer:
📝 Text → Tokens (lexing)
🌳 Tokens → Structure (parsing)
🔗 Names → Symbols (binding)
⚡ Symbols → Values (runtime)
youtu.be/bsB3BS2hC6Q
Multi-cursor editing in VS Code is genuinely life-changing once it clicks
🎯 Alt+Click for surgical placement
⚡ Ctrl+D grabs matching tokens one by one
🔥 Ctrl+Shift+L selects ALL occurrences
🔧 Toggle modifier key to Ctrl if Alt feels wrong
8 min tutorial:
youtu.be/7NgU_FTnGJ0
TIL after years of using Git: git archive
Creates clean zip snapshots of your repo without:
🚫 node_modules
🚫 virtual environments
🚫 .git metadata
My 180MB folder → 14MB. Perfect for uploading codebases to ChatGPT/Claude.
youtu.be/WaZkdLRZubM
New video: Getting Gemini Code Assist running in VS Code
Google's copying everyone else's patterns and honestly? That's great for us. Learn it once, use it everywhere.
Fair warning: run multiple AI assistants and they WILL fight like puppies in a bag.
youtu.be/rGPfi4Q9Rj8
Claude Cowork just saved me hours of scutwork:
🔹 Bulk social posts from 20 YT videos → Buffer CSV
🔹 9-year-old conference repo → 2026 presentation
🔹 Folder-based, not chat-based
This is what real AI automation looks like.
youtu.be/vz6y5BaUQsc
Hey! We shipped my new Pluralsight course: CircleCI Advanced Configuration.
Advanced workflows, config reuse, parameters, Orbs, and sane pipeline architecture for grown-up CI/CD.
No fluff. No copy-paste YAML debt.
🔗 www.pluralsight.com/courses/circ...
Stop mousing around in VS Code.
The Command Palette has hidden prefix modes:
@ → symbols in current file
# → symbols across your whole project
: → jump to any line
? → shows all the options
Quick win: Remove the > caret with backspace for instant file search.
youtu.be/fZnS4DA9egU
GitHub killed Knowledge Bases. Spaces are the replacement.
Getting them working in VS Code? That was a journey.
🔧 HTTP transport, not Docker stdio
🔑 X-MCP-Toolsets: default,copilot_spaces
⚠️ Only 2 tools right now, but watch for updates
Full walkthrough:
youtu.be/4luVUa-pS-c
Finally got BYOK working with GitHub Copilot!
🔹 Deploy your model in Azure AI Foundry
🔹 Register API key in GitHub Enterprise
🔹 Pick it from VS Code's model selector
🔹 Fine-tuning + agentic features unlocked
Stock models are fine. YOUR models are better.
youtu.be/gndyFfyp2J0
Code to Cloud: 2026 Certification Secrets
Kevin and I discuss what we think are the most important IT certifications of the new year. Enjoy! www.youtube.com/watch?v=ZfjX...
Your wall-of-text AI prompts are holding you back.
🔹 XML-style tags give LLMs clear boundaries
🔹 All 3 major vendors recommend it
🔹 No valid XML needed -- intent matters
Quick demo + Claude Skills automation:
youtu.be/TBeZmQiZR5k
Just dropped a new video breaking down Copilot Studio agent creation from scratch.
🎯 Plain English → working AI agent
📚 Add your own knowledge sources
🧪 Test in real-time before publishing
🚀 Live demo site in seconds
No code required. Easier than it looks.
youtu.be/tTj__zkK0dQ
The chat UI lies to you about how LLMs actually work.
📍 START = hot zone (high recall)
📍 MIDDLE = risk zone (gets missed)
📍 END = hot zone (immediate attention)
Structure beats sprawl. Position beats length.
New lesson—12 min, no fluff:
youtu.be/oOL0WY1b_x4
New video: How to create an agent in M365 Copilot
The catch? These aren't really "agents"—they're custom GPTs. Still useful for internal team scenarios, just know the limits.
I walk through building an RAI Coach from scratch, no code required.
youtu.be/Wn5UaH2YkqI
New video: Subagents in Claude Code
🔧 Spawn parallel AI instances with isolated context
⌨️ Ctrl+B to background agents while you work
📁 Project or user-level storage for reuse
📊 /context shows your token breakdown
Real walkthrough, real debugging, real learning. Enjoy!
youtu.be/dk0kn2evY38
I'm teaching context engineering, so I built a demo. Simple MCP server (~400 lines TypeScript):
• Store notes locally
• Search by relevance
• Compress to fit a character budget
Run it in VS Code with Copilot. Clone it, break it, learn from it.
🔗 github.com/timothywarner-org/copilot-memory-store
CircleCI is an opinionated SaaS CI/CD platform that works hand in glove with GitHub Enterprise Cloud.
I just released a new Pluralsight course, Getting Started with CircleCI, focused on practical pipelines and how CircleCI thinks about CI/CD.
Check it out!
www.pluralsight.com/courses/gett...
Microsoft has 3 paths for building agents and most orgs pick wrong:
🔹 M365 Copilot agents = glorified custom GPTs
🔹 Copilot Studio = where real power lives
🔹 Azure Foundry = nuclear option
They're layers, not competitors. Start low-code.
youtu.be/3jZ_lzsgWTM
Case studies on Microsoft cert exams stress everyone out — until you have a system.
My 4-step strategy:
→ Skim for theme (90 sec max)
→ Find the callback hint in each question
→ Targeted tab search
→ Match and answer, keep moving
Work smarter, not harder.
youtu.be/jpJc0ElB4rY
New video: Why AZ-104 is the hardest Microsoft cert exam (in my 30 years of experience)
4 pillars of pain:
- Breadth AND depth
- Azure networking (a whole career crammed in)
- Case studies & data analysis
- Multiple "correct" answers
Plus tips that actually work 👇
🎬 youtu.be/qkSOrJwIQ70
Recording a breakdown of the Microsoft Certification Exam rules: AI bans, braindumps, score challenges, and how your data is shared. If you take MS certs, this clears up a lot of confusion. Video link: youtu.be/pXnM4Dbd2VI
#Microsoft #Certification
New video alert! 🚨 Microsoft Practice Assessments aren't what you think they are.
Breaking down the truth about these free assessments and what you ACTUALLY need to pass your Microsoft cert exam.
Hope it helps! youtu.be/c7dTLq9SzmU
#Azure #Certification #CloudComputing #TechEducation
Hi! Here's my candid, NDA-friendly review of Microsoft brand-new expert-level cert Agentic AI Business Solutions Architect (AB‑100). Hope it's helpful!
youtu.be/MCIon6epv74
Happy Friday! If you use Wireshark to any extent, you may be interested in my brand-new Pluralsight course, "Visualizing Network Traffic and Advanced Analysis"!
Enjoy!
www.pluralsight.com/courses/visu...