Start Astro Development Server

VerifiedSafe

Starts the Astro development server using `npm run dev`. The site becomes available at http://localhost:4321 with hot reload enabled for rapid development.

Sby Skills Guide Bot
DevelopmentBeginner
6/2/2026
Claude CodeCursorWindsurfCopilotCodex
#astro#development-server#hot-reload#npm

Recommended for

Automated summary

Starts the Astro development server for web development with hot reload.

Strengths

  • Quick startup with a single command
  • Hot reload for real-time feedback on changes
  • Automatically finds an available port if 4321 is busy

Limitations

  • Requires Node.js and npm to be installed
  • Only works within an existing Astro project
  • Not suitable for production environments
When to use it

When actively developing an Astro site and need instant feedback.

When not to use it

When deploying the site to production or for non-Astro projects.

Security analysis

Safe
Quality score85/100

The skill only instructs running a standard 'npm run dev' command to start an Astro development server. There is no indication of destructive, exfiltrating, or obfuscated actions. The command is typical and safe in a development context.

No concerns found

How this analysis is made

Examples

Start Astro dev server
Run the Astro development server to start working on my site.
Restart dev server
I need to restart the Astro dev server, please run npm run dev.

name: dev description: Start the Astro development server for web development

Start the development server.

Run this command:

npm run dev

The site will be available at http://localhost:4321 (or next available port).

Hot reload is enabled for rapid development.

From the file to a first result

The download contains exactly the content displayed on this page. This copy may differ from the latest version in the source repository.

View the source and supporting files

This download contains SKILL.md only. Any scripts, references, templates and dependencies are not included. Get the required files from the source, preserving their directory structure, before continuing.

1. Download the file

Download SKILL.md

From the root of a test project, save the file as .skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md, or use the command below. This folder is for inspecting the skill before installation.

Command for macOS/Linux or WSL: requires a POSIX shell and curl. On Windows without WSL, use the download button and create the folder manually.

mkdir -p '.skill-downloads/start-astro-development-server-mmh8qpwl' && curl --fail --show-error --location 'https://skills-guides.com/api/skills/start-astro-development-server-mmh8qpwl/download' --output '.skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md.part' && mv '.skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md.part' '.skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md'

2. Check prerequisites

Read SKILL.md before using it. If it references scripts or external services, inspect them and prepare the required access in your test environment.

No recognized prerequisites section in this file. This does not mean it is self-contained: libraries, tools and access requirements may be mentioned elsewhere in the content or source repository.

The platforms on this page are catalog indications. The paths below follow tool documentation; they do not prove this skill has been run in those tools. No minimum tool version is confirmed for this listing.

3. Load the skill

After inspection, copy the complete folder into your project using one of the commands below, then open a new tool session. The command stops if a folder with the same name already exists: compare the files before replacing it.

Claude Code
test -f '.skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md' && test -s '.skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md' && mkdir -p '.claude/skills' && test ! -e '.claude/skills/dev' && cp -R '.skill-downloads/start-astro-development-server-mmh8qpwl' '.claude/skills/dev'

Cursor
test -f '.skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md' && test -s '.skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md' && mkdir -p '.cursor/skills' && test ! -e '.cursor/skills/dev' && cp -R '.skill-downloads/start-astro-development-server-mmh8qpwl' '.cursor/skills/dev'

Codex
test -f '.skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md' && test -s '.skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md' && mkdir -p '.agents/skills' && test ! -e '.agents/skills/dev' && cp -R '.skill-downloads/start-astro-development-server-mmh8qpwl' '.agents/skills/dev'

OpenSkills

OpenSkills must already be installed. The local install/read procedure is checked with OpenSkills 1.5.0, which requires Node.js ≥ 20.6.0. Catalog slugs are not resolved automatically.

Official OpenSkills installation
openskills install './.skill-downloads/start-astro-development-server-mmh8qpwl'

openskills read 'start-astro-development-server-mmh8qpwl'

Reading should display the installed file content and its base directory. It does not run the skill or install its dependencies.

For an agent that reads AGENTS.md, then sync the index. This command changes AGENTS.md: review the diff before using it.

openskills sync

Manual method or another tool: attach SKILL.md to a conversation, or open it in an agent that can read files. Include any required supporting resources. No universal folder is recognized by every tool.

4. Try a first task

Use a short, synthetic input: an API endpoint, a small document or an interface brief. In a new conversation, attach the file or give the agent its path, then adapt this request:

Read .skill-downloads/start-astro-development-server-mmh8qpwl/SKILL.md and apply its instructions to this example: [describe a test input]. Identify any missing files, dependencies or access. Produce the result requested by the skill without inventing data or running unreviewed scripts.

Expected result: output matching the skill instructions, or a precise list of missing prerequisites. A read confirmation alone does not validate a first use. If an external resource is unavailable, that path remains untested.

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