browser-qa

browser-qa is a skill for Claude Code, Codex from AbdurRafay2004/handoff. It costs 85 tokens per session (2,680 once invoked), scanned A, original, MIT.

A browser-based quality check for a running web app. It uses Playwright, a tool that controls a real browser, to test affected pages and record errors, failed requests, screenshots, and results.

In plain words
What is it for?
Use it after interface changes, before release, or when checking whether a site works in practice. It can run small checks for ordinary changes and broader checks for money, login, or user-data features.
Why use it?
It finds problems that code and unit tests may miss, such as broken page loads, browser errors, or failed network requests. It reports problems without changing the code.

Skill for Claude CodeCodex

Part of the handoff plugin — 15 skills, 3 hooks shipped together

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.

agentmods
npx agentmods add skills/abdurrafay2004/handoff/browser-qa
Any agent
npx skills add AbdurRafay2004/handoff --skill browser-qa
Clone the repo
git clone --depth 1 https://github.com/AbdurRafay2004/handoff

Made for: Claude Code, Codex.

Or install handoff, the plugin that ships this one along with the rest of its 15 skills, 3 hooks.

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 browser-qa

README.md
[![agentmods](https://agentmods.dev/badge/skills/abdurrafay2004/handoff/browser-qa.svg)](https://agentmods.dev/skills/abdurrafay2004/handoff/browser-qa)
Your own site
<a href="https://agentmods.dev/skills/abdurrafay2004/handoff/browser-qa"><img src="https://agentmods.dev/badge/skills/abdurrafay2004/handoff/browser-qa.svg" alt="Measured on agentmods" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,680 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original 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 $0.00085 $0.02680
Opus 5 $0.00043 $0.01340
Sonnet 5 $0.00017 $0.00536
Haiku 4.5 $0.00009 $0.00268

Measured 4d ago against content hash 4b12c0ecfded, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

browser-qa scanned grade A with 1 finding 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 4d 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.

Makes network callslowCapability

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

| API handler (`app/api/**`, `src/api/**`) | Hit the endpoint directly (fetch in the script or `curl`), plus the page that calls it |
skills/browser-qa/SKILL.md · 211 lines

How it starts

The opening of the file, as written. The whole thing — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Browser QA: exercise the running app, report what breaks

Part of the Verify phase — see the workflow skill for tiers and sequencing.

You are a QA engineer. Test the app like a real user — load the pages this change touched, click what a user would click, watch the console. Produce a report with evidence. NEVER fix anything. Fixes go through the normal Build/Verify loop (see Report-only discipline at the end).

Tier plan

Match effort to the tier the workflow skill assigned (or infer from the change's risk):

Tier What to do
T1 (typo, comment, config-only) Skip browser QA entirely. Say so and stop.
T2 (normal features, including refactors; bug fixes) Smoke the affected routes only: load, console clean, no failed requests, screenshot, one DOM assert per route.
T3 (money, auth, user data, migrations — or pre-ship of such work) Full plan: affected routes plus adjacent routes and the top navigation targets, per-page checklist on each, health score with all categories.

Every run — even T2 — ends with a health score and the plain-language summary.

Scope: derive routes from the diff

Test what changed, not the whole site. From git diff main...HEAD --name-only and git log main..HEAD --oneline, map changed files to routes:

A multi-route QA run is token-heavy — a delegate trigger. Ask the user delegate-or-inline before running it (delegate skill).

Changed file Routes to test
Route/page file (app/**/page.tsx, pages/foo.tsx, src/pages/foo.astro) The route it serves (/foo)
Shared component Grep for importers; test the routes that render them
Layout, global CSS, providers Every route inherits it — test homepage + one route per layout
API handler (app/api/**, src/api/**) Hit the endpoint directly (fetch in the script or curl), plus the page that calls it
Model/service/lib code Routes whose pages call into it
Backend/config/infra with no obvious route Do NOT skip — smoke homepage + top 5 nav targets; backend changes still break pages

Read the full file on GitHub · 211 lines

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. 4d ago First seen · 211 lines · 85 tokens per session scan A 4b12c0ecfded

Subscribe to this mod's changes

browser-qa is a skill published in the GitHub repository AbdurRafay2004/handoff (4 stars, last pushed 1mo ago), licensed MIT. It adds 85 tokens to every session and 2,680 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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