ui-visual-regression

ui-visual-regression is a skill for Claude Code from cockroachdb/cockroach. It costs 61 tokens per session (3,966 once invoked), scanned C, original, no licence file.

A visual regression testing skill for DB Console, where screenshots and network requests are compared with those from the branch's starting point.

In plain words
What is it for?
Use it to check DB Console UI updates with roachprod, Playwright, and ImageMagick.
Why use it?
It helps detect unintended changes to the user interface or browser behavior after code changes.

Skill for Claude Code ✓ vendor

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to check DB Console UI updates with roachprod, Playwright, and ImageMagick.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cockroachdb/cockroach/ui-visual-regression
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.

Any agent
npx skills add cockroachdb/cockroach --skill ui-visual-regression
Clone the repo
git clone --depth 1 https://github.com/cockroachdb/cockroach

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ui-visual-regression

README.md
[![agentmods](https://agentmods.dev/badge/skills/cockroachdb/cockroach/ui-visual-regression/github.svg)](https://agentmods.dev/skills/cockroachdb/cockroach/ui-visual-regression)
Your own site
<a href="https://agentmods.dev/skills/cockroachdb/cockroach/ui-visual-regression"><img src="https://agentmods.dev/badge/skills/cockroachdb/cockroach/ui-visual-regression/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ui-visual-regression

Your own site · 80×15
<a href="https://agentmods.dev/skills/cockroachdb/cockroach/ui-visual-regression"><img src="https://agentmods.dev/badge/skills/cockroachdb/cockroach/ui-visual-regression.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,966 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Tool Misuse · line 301
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00061 $0.03966
Opus 5.5 $0.00024 $0.01586
Sonnet 5.5 $0.00012 $0.00793
Haiku 4.5 $0.00006 $0.00397

Measured 1mo ago against content hash 0ce4dac0e667, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

ui-visual-regression scanned grade C with 2 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 1mo ago.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf .playwright-cli/

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

allowed-tools: Bash(roachprod:*), Bash(playwright-cli:*), Bash(compare:*), Bash(diff:*), Bash(git:*), Bash(./dev:*), Bash(npm:*), Bash(which:*), Bash(curl:*), Bash(mkdir:*), Bash(cp:*), Bash(ls:*), Bash(tail:*), Bash(sle
pkg/ui/.claude/skills/ui-visual-regression/SKILL.md · 385 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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.

  1. 1mo ago First seen · 385 lines · 61 tokens per session scan C 0ce4dac0e667

Subscribe to this mod's changes

ui-visual-regression is a skill published in the GitHub repository cockroachdb/cockroach (32,574 stars, last pushed 2d ago), with no licence file. It adds 61 tokens to every session and 3,966 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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