Cursor Hello World

What it does

When your agent uses it

• Cursor hello world
• First cursor project
• Cursor getting started
• Cursor tutorial

Example prompts

• “cursor hello world”
• “first cursor project”
• “cursor getting started”
• “/cursor-hello-world”

Requirements

• Node.js
• Compatibility (from SKILL.md): Designed for Claude Code
• Pre-approved tools (allowed-tools): Read, Write, Edit, Bash(cmd:*)

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

1. 1Create a non-sensitive example project and enable the approved privacy setting.
2. 2Use one feature at a time, give clear constraints, and inspect every generated diff before accepting it.
3. 3Run focused tests/formatting after applying a change; reject or revert unexpected edits.
4. 4Move to real repositories only after rules, indexing exclusions, and review expectations are configured.

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Read
  • Write
  • Edit
  • Bash(cmd:*)

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • npm
  • npx
  • cursor

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Links to these hosts (documentation or services it may open):

  • docs.cursor.com
  • cursor.com

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

• Compatibility

  Designed for Claude Code

  From compatibility in the SKILL.md frontmatter.

Context cost

Cursor Hello World loads about 1.7k tokens when it runs, and up to ~2.1k if it reads all its reference files. Until then it costs about 61 tokens; SKILL.md has 582 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~61

When it runs · the whole SKILL.md, loaded when a task matches

~1.7k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~2.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 582 words, ~1,657 tokens.

name

cursor-hello-world

description

Create your first project using Cursor AI features: Tab, Chat, Composer, and Inline Edit. Triggers on "cursor hello world", "first cursor project", "cursor getting started", "try cursor ai", "cursor basics", "cursor tutorial".

allowed-tools

Read, Write, Edit, Bash(cmd:*)

compatibility

Designed for Claude Code

version

1.19.0

license

MIT

author

Jeremy Longshore <jeremy@intentsolutions.io>

tags

saas, cursor, cursor-hello

mkdir cursor-hello && cd cursor-hello
npm init -y
npm install typescript tsx @types/node --save-dev
npx tsc --init

// Type this much:
export function formatCurrency(amount: number, currency: string

// Tab suggests:
export function formatCurrency(amount: number, currency: string = 'USD'): string {
  return new Intl.NumberFormat('en-US', {
    style: 'currency',
    currency,
  }).format(amount);
}

// Validate an email address using regex
export function validateEmail(

// Sort an array of objects by a key
export function sortBy<T>(

// Calculate the distance between two lat/lng points in km
export function haversineDistance(

@src/utils.ts
What does the formatCurrency function do? Does it handle edge cases
like negative numbers or very large values?

Write a TypeScript function that converts a nested object
to a flat key-value map with dot-separated keys.
Example: { a: { b: 1 } } → { "a.b": 1 }

Explain the difference between Promise.all() and Promise.allSettled()
with code examples showing when to use each.

Add support for locale parameter with default 'en-US'.
Handle NaN input by returning '$0.00'.

Create a simple task manager module:

1. src/types/task.ts - Task interface with id, title, completed, createdAt
2. src/services/task-service.ts - TaskService class with:
   - addTask(title: string): Task
   - completeTask(id: string): Task
   - listTasks(): Task[]
   - deleteTask(id: string): void
3. src/index.ts - Demo script that creates 3 tasks, completes one, lists all

Use in-memory storage (Map). Include TypeScript types throughout.

npx tsx src/index.ts

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (references) in skills/.curated/cursor-hello-world of jeremylongshore/tons-of-skills-marketplace.

• SKILL.md
• references/errors.md
• references/examples.md
• references/quick-start-(5-minutes).md

Open the folder on GitHubat commit cfae287