debugging-page-javascript

name	debugging-page-javascript
description	Executes JavaScript in browser pages, captures console output, and debugs page-side behavior with cdp. Use when the task involves console diagnostics, injected collectors, page evaluation, or browser-side debugging during automation.

Debugging Page JavaScript

Use this skill when the task is about browser-side JavaScript behavior rather than navigation alone.

Quick start

• Use eval or js for short page-side expressions
• Use jsfile for longer snippets or reusable helpers
• Use collector scripts when the task needs structured console output over time

Use this skill for

• evaluating expressions in the page context
• enabling and interpreting console output
• capturing page errors or ad hoc telemetry
• debugging page-side state during scripts or interactive sessions

Read next

• Console and JavaScript execution patterns: references/console.md
• CLI-level command surface: ../operating-cdp-cli/SKILL.md