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Gens-aiGens-ai/skills/dev-servers/SKILL.md

dev-servers

Skill1 starsChanged 5 months agoMITView on GitHub

Start or stop local development servers for the current project — the safe way. Frees ports / tears down stale processes first, defers to a project-specific skill if one exists, then detects the stack (Laravel Sail, Laravel, Node/npm, Docker Compose, Makefile) and starts it. Use when the user says "start local servers", "start the dev server", "spin up local", "boot up the app", "start dev", "stop the servers", "kill the dev servers", or any variation.

The file

We split this skill into the rules it gives an agent

5 rules. About 0 are common, 4 are distinctive, and 1 is very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈4

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 1

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Always follow these steps in order.

    line 23
  2. Distinctive:

    Before anything else, check for a project-specific skill in the current working directory:

    line 27
  3. Distinctive:

    If it exists, read it and follow those instructions exclusively — ignore the steps below.

    line 33
  4. Very specific:

    Run this unconditionally before starting anything, to clear containers/processes/services that could hold ports.

    line 41
  5. Distinctive:

    Use the project's own conventions:

    line 54

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Dev Servers (start / stop)

A safe, portable lifecycle for local dev servers. The value isn't a magic start command — that's inherently stack-specific — it's the discipline: defer to a project skill → tear down stale processes first → detect the stack → start → report. Skipping the teardown is the #1 cause of "port already in use" pain; deferring to a project skill means project-tuned setups always win.

Stopping

For "stop / kill / shut down the dev servers", run the bundled teardown:

bash scripts/stop-dev

It stops all running Docker containers, kills Vite dev servers, and stops any system services configured in the script. Edit scripts/stop-dev to add the services you run locally (mysqld, postgresql, redis, …), or copy it onto your PATH as stop-dev for convenience.

Starting

Always follow these steps in order.

Step 0 — defer to a project-scoped skill

Before anything else, check for a project-specific skill in the current working directory:

cat .claude/skills/local-servers/SKILL.md 2>/dev/null

If it exists, read it and follow those instructions exclusively — ignore the steps below. A project that ships its own startup skill knows its services, ports, and gotchas better than any generic detection.

Step 1 — stop everything first

bash scripts/stop-dev

Run this unconditionally before starting anything, to clear containers/processes/services that could hold ports.

Step 2 — detect the stack

ls composer.json package.json Makefile docker-compose.yml docker-compose.yaml 2>/dev/null
grep -E '"sail"|"laravel"' composer.json 2>/dev/null | head -5

Also check the project's CLAUDE.md / README for the canonical dev command before assuming defaults.

Step 3 — start the appropriate servers

Use the project's own conventions:

Laravel Sail (composer.json references laravel/sail + a docker-compose.yml):

sail up -d
# then any extra processes — many projects expose a "dev" script:
composer run dev    # often runs serve + queue + vite together

Laravel without Sail:

php artisan serve &
# start queue/vite too if the project uses them (check CLAUDE.md/README)

Node / npm:

npm run dev

Makefile:

make help 2>/dev/null || grep -E '^[a-zA-Z_-]+:' Makefile | head -20

Step 4 — confirm

Report:

  • what stop-dev stopped (if anything),
  • which servers are now running and on what ports/URLs.

Notes

  • scripts/stop-dev stops all running Docker containers — intended for a dev box where containers are dev services. If you run non-dev containers locally, comment that block out.
  • Stopping system services needs passwordless sudo for those units (non-interactive runs).
  • Written for Linux/macOS with bash; the service-stop step assumes systemd.

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