What is visual-screenshots?

A tool for taking matching before-and-after pictures of web pages with Playwright, a browser automation tool. It supports several screen sizes and GitHub or GitHub Enterprise pull requests.

Use it to capture screenshots of changed pages at multiple screen sizes and optionally add them as images in a pull request comment.

It makes visual changes easier to review by showing the old and new page side by side. It avoids relying only on code descriptions for user-interface changes.

visual-screenshots — Plugin by lancewillett

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code

/plugin marketplace add lancewillett/ai-plugins

agentmods

npx agentmods add plugins/lancewillett/ai-plugins/visual-screenshots

Clone the repo

git clone --depth 1 https://github.com/lancewillett/ai-plugins

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

visual-screenshots scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/visual-screenshots/.claude-plugin/plugin.json · 11 lines

What it actually says

{
  "name": "visual-screenshots",
  "description": "Capture before/after screenshots for PRs with visual UI changes using Playwright. Reads the repo's dev-server setup, captures matched before/after shots at multiple viewports, and can upload them straight into the PR comment as inline images. Works on github.com and GitHub Enterprise.",
  "version": "1.0.0",
  "author": {
    "name": "Lance Willett"
  },
  "license": "MIT",
  "skills": ["./skills/visual-screenshots"]
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 11 lines scan A b38648904bd7

Subscribe to this mod's changes

visual-screenshots is a plugin published in the GitHub repository lancewillett/ai-plugins (2 stars, last pushed 16d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Browser automation Code review Frontend

visual-screenshots

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

Other plugins, from other repositories

cli

hhru

dhm

kernel-sdks

webmcpify

realbrowser