qa-engineer

A quality-assurance aid for testing a running application from the user's point of view, including in a real browser. It finds bugs, fixes them, checks the fixes, and adds tests to help prevent repeat failures.

In plain words
What is it for?
Use it before release to test features end to end, find and fix bugs, perform a regression check, or validate an application as a real user would.
Why use it?
It exposes problems that developers may miss, especially incorrect inputs, failed network requests, expired sessions, and small-screen layouts. It verifies that changes work through the complete user journey.

Skill for Claude CodeCodex

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/code-saurabh/openskills/qa-engineer
Any agent
npx skills add CODE-SAURABH/OpenSkills --skill qa-engineer
Clone the repo
git clone --depth 1 https://github.com/CODE-SAURABH/OpenSkills

Made for: Claude Code, Codex.

Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,999 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 $0.00069 $0.04999
Opus 5 $0.00034 $0.02499
Sonnet 5 $0.00014 $0.01000
Haiku 4.5 $0.00007 $0.00500

Measured yesterday against content hash 11ff3c23aced, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

qa-engineer 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 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.

Makes network callslowCapability

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

curl -s -o /dev/null -w "%{http_code}" http://localhost:3000
qa-engineer/SKILL.md · 526 lines

How it starts

The opening of the file, as written. The whole thing — 526 lines — stays where its author put it; the contents beside it link to each section on GitHub.

QA Engineer

Approach every QA pass as a senior engineer who ships to real users and is personally accountable for regressions. You are not running a checklist — you are simulating a hostile user who clicks things they should not, submits forms wrong, loses connection at the worst moment, and uses a phone with a 4-inch screen.

Your job is to find bugs before users do, fix them atomically, prove the fix works, and leave a regression test so the bug cannot return silently.


QA Philosophy

  • Test as a user, not as the developer who built it. The developer knows what the app is supposed to do. The user only knows what they see. Take the user's perspective: click every button, follow every link, try every edge case.
  • A bug found by QA is a win. A bug found by a user is a failure. Every issue you surface before ship is one less incident, one less rollback, one less angry customer.
  • Never skip the sad path. Most bugs live in error states: what happens when the API is down? What happens when the user submits an empty form? What happens when the session expires mid-flow?
  • Fix atomically, verify immediately. One bug per commit. Re-test after every fix before moving to the next. Do not batch fixes — batching hides which change solved which problem.
  • Every fix earns a regression test. A bug that was found manually must be caught automatically if it ever returns. No fix is complete without a test that would have caught the original bug.
  • Ship-readiness is a binary decision. At the end of the QA pass, you give a clear verdict: ship or do not ship. No ambiguity.

Depth Modes

Choose the depth based on the urgency, risk, and time available. When in doubt, use Standard.

Mode Severity Levels Tested When to Use
Quick Critical + High only Hotfix validation, urgent re-deploy, < 15 min available
Standard Critical + High + Medium Pre-release QA pass, feature completion, PR validation
Exhaustive All severities including Cosmetic Major release, public launch, post-redesign, compliance review

Read the full file on GitHub · 526 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. yesterday First seen · 526 lines · 69 tokens per session scan A 11ff3c23aced

Subscribe to this mod's changes

qa-engineer is a skill published in the GitHub repository CODE-SAURABH/OpenSkills (2 stars, last pushed 1mo ago), licensed MIT. It adds 69 tokens to every session and 4,999 once invoked, about $0.0003 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.

Related

Other skills, from other repositories

ecommerce-landing-page

Audit and optimize e-commerce landing pages for conversion. CTA placement, trust signals, page structure, copy optimization, and A/B testing strategy for product pages, collection pages, and campaign landing pages.

nexscope-ai/eCommerce-Skills · 45 tokens

customer-feedback-analysis

AI-powered customer feedback and review sentiment analysis skill. Extracts pain points, feature requests, and improvement priorities from customer reviews across e-commerce platforms.

nexscope-ai/eCommerce-Skills · 0 tokens

ads-linkedin

Audit LinkedIn Ads measurement, Insight Tag and conversions, professional audiences, lead generation, ABM, creative, bidding, budgets, pacing, automation, and policy. Use for LinkedIn Ads, Campaign Manager, Insight Tag, Lead Gen Forms, Thought Leader Ads, ABM campaigns, or B2B paid media.

AgriciDaniel/claude-ads · 68 tokens

ads-launch

Draft or explicitly apply a paid-ad campaign launch through Claude Ads capability-gated adapters. Use for campaign creation, launch plans, publishing ads, activating campaigns, uploading creative, or requests to push a campaign live.

AgriciDaniel/claude-ads · 45 tokens

api-response-optimization

Optimizes API performance through payload reduction, caching strategies, and compression techniques. Use when improving API response times, reducing bandwidth usage, or implementing efficient caching.

secondsky/claude-skills · 36 tokens

ctx-insight

Open the context-mode Insight dashboard in your default browser. Insight is the hosted analytics layer for AI-assisted engineering teams — per-engineer productive rate, retry waste, blocker detection, role-narrowed views. Trigger: /context-mode:ctx-insight.

mksglu/context-mode · 55 tokens