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Swift Snapshot Testing

Checked
nonameplum·vlatest·frontend

Helps with Swift, testing as part of building frontend UIs and user experiences workflows.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add nonameplum/agent-skills --skill swift-snapshot-testing -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

nonameplum

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned nonameplum/agent-skills at 26f9ebd26d.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
26f9ebd26d
Manifest
swift-snapshot-testing/SKILL.md
Scanned
12 files, 475 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

The swift-snapshot-testing skill enables automated visual testing of SwiftUI views. It captures snapshots (images) of your UI elements and compares them against baseline images, highlighting any unexpected changes. This allows for quick detection of regressions caused by code modifications or framework updates. The skill supports both local and remote snapshot comparison.

When to use it

  • Regression Testing: After making changes to a SwiftUI view's layout or appearance, ensure the visual output remains consistent.
  • UI Refactoring: Verify that refactored UI components maintain their intended look and feel.
  • Framework Upgrades: Confirm that updates to underlying frameworks (like iOS) don’t introduce unexpected visual regressions in your app.
  • Continuous Integration: Integrate snapshot testing into your CI/CD pipeline for automated visual validation.

Key capabilities

  • Automated snapshot generation
  • Baseline image comparison
  • Local and remote snapshot storage
  • Regression detection
  • SwiftUI view support

Example prompts

  • "Run snapshot tests for the UserProfileView."
  • "Compare the current snapshot of SettingsScreen with the baseline image."
  • "Update the baseline image for ProductCard after this change."

Tips & gotchas

  • Requires a macOS environment to execute.
  • Ensure your test environment is consistent (font sizes, device settings) for reliable comparisons.