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AUTHENTICATION

Playwright/Patchright has a known bug (#36139) where session cookies (cookies without an Expires attribute) do not persist correctly when using launch_persistent_context() with user_data_dir.

  • Skills
  • Productivity
  • 4

What it does and how to use it

A skill that teaches Claude Code to do productivity tasks well. It is packaged knowledge the model uses whenever it is relevant.

  1. Install the skill (command above).
  2. In Claude Code, describe what you need - the skill turns on by itself when the context fits.
  3. No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/authentication && curl -fsSL https://doutorai.pt/data/lib/skills__authentication.md -o .claude/skills/authentication/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

# Authentication Architecture

## Overview

This skill uses a **hybrid authentication approach** that combines the best of both worlds:

1. **Persistent Browser Profile** (`user_data_dir`) for consistent browser fingerprinting
2. **Manual Cookie Injection** from `state.json` for reliable session cookie persistence

## Why This Approach?

### The Problem

Playwright/Patchright has a known bug ([#36139](https://github.com/microsoft/playwright/issues/36139)) where **session cookies** (cookies without an `Expires` attribute) do not persist correctly when using `launch_persistent_context()` with `u

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