portless

Installation
SKILL.md

Portless Integration

Named .localhost URLs for local development. Replaces localhost:3000 with https://myapp.localhost.

Full CLI reference: Load Read("${CLAUDE_SKILL_DIR}/references/upstream.md") for complete command docs.

When to Use

  • Starting a dev server that agents or browser tests will target
  • Running multiple services locally (API + frontend + docs)
  • Working in git worktrees (branch-named subdomains)
  • Local OAuth flows (stable callback URLs)
  • Connecting emulate API mocks to named URLs

Quick Start

# Instead of: npm run dev (random port)
portless run npm run dev
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GitHub Stars
170
First Seen
Apr 8, 2026