Claude Code + Playwright via MCP: context overflow, auth and selector fragility pain points
matias_flyfishing · reddit · 2026-10-17
A developer asks Reddit for production patterns on integrating Playwright with Claude Code via MCP:
- Context overflow: default Playwright logs eat Claude's context window fast; looking for minimal-reporting setups like --reporter=line.
- Auth & long flows: UI login each iteration is failure-prone; considering injecting Playwright storageState session tokens and instructing Claude to assume it's already authenticated.
- Selector resilience: Claude hallucinates selectors from dynamic CSS classes; seeking system prompts that force accessible locators (getByRole, getByText, getByLabel) over fragile XPath/CSS.
The post includes concrete config commands and well-articulated pain points; answers may yield reusable agentic-browser-automation practices.
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