Deployment

Skill wewpellex21/code-sensei/skills/deployment

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Install

npx -y skills add wewpellex21/code-sensei --skill deployment

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What its author says it does

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Hosting, deployment, CI/CD, and going live. Activated when Claude works with deployment configs, Dockerfiles, Vercel/Netlify configs, or deployment-related commands.

SKILL.md

2.6 KB, 567 tokens by cl100k_base, as published. Nobody here has run it

Deployment — CodeSensei Teaching Module

What is Deployment?

Analogy: Deployment is moving from rehearsal to opening night. Your app works on your computer (localhost), and deployment puts it on a server so the whole world can use it.
Key insight: When you run npm start on your computer, only YOU can see the app. Deployment puts it on someone else's computer (a server) that's always on and connected to the internet.

Localhost vs Production

localhost — your computer, only you can access it. The rehearsal stage.
Production — a server in the cloud, anyone with the URL can access it. Opening night.
Staging — a test server that mimics production. The dress rehearsal.

Common Deployment Platforms

Vercel — one-click deployment for Next.js/React apps. Push to GitHub, it deploys automatically.
Netlify — similar to Vercel, great for static sites and simple apps.
Railway / Render — for backend apps with databases.
AWS / GCP / Azure — the industrial-grade options. More complex but more powerful.
Key insight: For most vibecoded projects, Vercel or Railway is all you need.

Domains & DNS

Analogy: A domain name (like myapp.com) is a nickname for your server's actual address (an IP like 192.168.1.1). DNS is the phone book that translates names to addresses.
Teaching flow: User types myapp.com → DNS looks up the address → Browser connects to the server → Server sends the app

Environment Variables in Production

Key insight: Your .env file doesn't get uploaded. You set environment variables SEPARATELY in your hosting platform's dashboard.
Why: Security. Your code is often public (on GitHub), but your secrets shouldn't be.

CI/CD (Continuous Integration / Continuous Deployment)

Analogy: An automatic assembly line. Every time you push code to GitHub, the system automatically tests it, builds it, and deploys it — without you clicking anything.
Key insight: This is why developers "push to main" to deploy. The pipeline handles the rest.

Docker (if encountered)

Analogy: A shipping container for your app. It packages your code AND everything it needs to run (right version of Node, right libraries, right settings) into one portable box. That box runs the same everywhere.
Dockerfile — the recipe for building the container
Key insight: Docker solves "it works on my machine" — by shipping the machine too.

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

Gives 0 of the 12 instructions most ship operate skills give in 567 tokens

Counted across 779 of the 1,178 authors here whose files we hold, read 2026-08-07

Document a rollback plan before deploymentin 41 of 779, across 22 files
Update the changelogin 21 of 779, across 19 files
Run the test suitein 20 of 779
Create an annotated git tagin 20 of 779
Clean up feature flags after full rolloutin 18 of 779, across 10 files
Verify deployment health after launchin 18 of 779, across 10 files
Test both feature flag statesin 17 of 779, across 9 files
Verify the working tree is cleanin 17 of 779
Make database migrations backward-compatiblein 16 of 779, across 8 files
Set up error monitoring before launchin 15 of 779, across 7 files
Monitor metrics at each rollout stagein 14 of 779, across 5 files
Create a GitHub releasein 14 of 779

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.