# Jeremylongshore Claude Code Plugins Plus Skills Snapshot Test Manager > Overview - Skill: `tomevault-io/jeremylongshore-claude-code-plugins-plus-skills-snapshot-2` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/jeremylongshore-claude-code-plugins-plus-skills-snapshot-2` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/jeremylongshore-claude-code-plugins-plus-skills-snapshot-2/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/jeremylongshore-claude-code-plugins-plus-skills-snapshot-2 --- ## Overview This skill empowers Claude to efficiently manage snapshot tests by analyzing differences, selectively updating snapshots based on intentional changes, and identifying potential regressions. It provides a streamlined approach to maintain snapshot test suites across various JavaScript testing frameworks. ## How It Works 1. **Analyzing Failures**: Reviews failed snapshot diffs, highlighting intentional and unintentional changes with side-by-side comparisons. 2. **Selective Updating**: Updates specific snapshots that reflect intentional UI or code changes, while preserving snapshots that have caught regressions. 3. **Batch Processing**: Allows for batch updating of related snapshots to streamline the update process. ## When to Use This Skill This skill activates when you need to: - Analyze snapshot test failures after code changes. - Update snapshot tests to reflect intentional UI changes. - Identify and preserve snapshots that are catching regressions. ## Examples ### Example 1: Updating Snapshots After UI Changes User request: "I've made some UI changes and now my snapshot tests are failing. Can you update the snapshots?" The skill will: 1. Analyze the snapshot failures, identifying the diffs caused by the UI changes. 2. Update the relevant snapshot files to reflect the new UI. ### Example 2: Investigating Unexpected Snapshot Changes User request: "My snapshot tests are failing, but I don't expect any UI changes. Can you help me figure out what's going on?" The skill will: 1. Analyze the snapshot failures, highlighting the unexpected diffs. 2. Present the diffs to the user for review, indicating potential regressions. ## Best Practices - **Clear Communication**: Clearly state the intention behind updating or analyzing snapshots. - **Framework Awareness**: Specify the testing framework (Jest, Vitest, etc.) if known for more accurate analysis. - **Selective Updates**: Avoid blindly updating all snapshots. Focus on intentional changes and investigate unexpected diffs. ## Integration This skill works independently but can be used in conjunction with other code analysis and testing tools to provide a comprehensive testing workflow. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/jeremylongshore) — claim your Tome and manage your conversions.