change-capture

Configure browser harnesses to capture screenshots only on detected changes.

Updated May 11, 2026

Search Tags:#automation #testing #regression #cost-optimization #browser #harness

Ready to run

npx skills add https://github.com/AesopScott/mojo --skill change-capture

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: change-capture
Source: https://github.com/AesopScott/mojo/tree/main/harnesses/skills/change-capture
Command: npx skills add https://github.com/AesopScott/mojo --skill change-capture

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill addresses excessive compute costs and resource waste in browser-based testing by implementing intelligent capture logic that only triggers on detected changes.

Core Features & Use Cases

Cost Control: Reduces screenshot frequency and compute usage by avoiding redundant captures.
Session Management: Reuses browser sessions to minimize overhead during visual regression testing.
Use Case: When running a large suite of UI tests, use this skill to configure the harness to only capture visual evidence when the DOM or visual state actually changes, significantly lowering storage and token consumption.

Quick Start

Use the change-capture skill to analyze the current browser harness and implement a session reuse policy to reduce compute costs.

Frequently Asked Questions about change-capture

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I reduce compute costs in automated visual regression testing?▼

To reduce compute costs in visual regression testing, configure your browser harness to use capture-on-change logic, which prevents redundant screenshots and minimizes token expenditure by only triggering captures when the visual state actually changes.

What is the best way to manage browser sessions for UI test automation?▼

The best way to manage browser sessions for UI test automation is to implement a session reuse policy, which minimizes overhead and resource waste by keeping browser sessions active across multiple test runs instead of spawning new instances.

How do I stop my browser harness from capturing redundant screenshots?▼

You can stop your browser harness from capturing redundant screenshots by applying intelligent capture logic that evaluates the DOM, ensuring the system only saves visual evidence when an actual change is detected rather than at fixed intervals.

Does browser session reuse work with existing harness configurations?▼

Yes, browser session reuse works with existing harness configurations, but it requires proper integration to enforce session persistence and capture-on-change logic effectively within your current automated testing workflow.

When should I use capture-on-change logic for UI monitoring?▼

You should use capture-on-change logic for UI monitoring when cost efficiency is a primary constraint and you are running large suites of tests, as it significantly lowers storage requirements and token consumption by avoiding unnecessary captures.