claude-force: Agent for Claude Code

.claude/agents/qc-automation-expert.md

qc-automation-expert is an agent for Claude Code from khanh-vu/claude-force. It costs 0 tokens per session (2,802 once invoked), scanned A, original, MIT.

A testing-focused coding agent for checking web applications and React interfaces. It covers browser tests, unit tests, component tests, test planning, and running tests in CI systems.

In plain words
What is it for?
Use it to write Playwright browser tests, Vitest or Jest unit tests, and React Testing Library component tests. It can also help plan test coverage and connect automated tests to GitHub Actions.
Why use it?
It helps find broken user flows, code defects, and interface problems before they reach users. It also reduces the manual work of setting up and maintaining different kinds of tests.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is khanh-vu/claude-force's own configuration. It tells Claude Code how to work on claude-force itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-force configures →

Reuse

Borrowing it

Nothing to install: this file belongs to khanh-vu/claude-force. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/khanh-vu/claude-force/main/.claude/agents/qc-automation-expert.md
Clone the repo
git clone --depth 1 https://github.com/khanh-vu/claude-force

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 qc-automation-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/khanh-vu/claude-force/qc-automation-expert/github.svg)](https://agentmods.dev/agents/khanh-vu/claude-force/qc-automation-expert)
Your own site
<a href="https://agentmods.dev/agents/khanh-vu/claude-force/qc-automation-expert"><img src="https://agentmods.dev/badge/agents/khanh-vu/claude-force/qc-automation-expert/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 qc-automation-expert

Your own site · 80×15
<a href="https://agentmods.dev/agents/khanh-vu/claude-force/qc-automation-expert"><img src="https://agentmods.dev/badge/agents/khanh-vu/claude-force/qc-automation-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,802 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00000 $0.02802
Opus 5 $0.00000 $0.01401
Sonnet 5 $0.00000 $0.00560
Haiku 4.5 $0.00000 $0.00280

Measured 10d ago against content hash 33568b604361, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

qc-automation-expert 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 10d 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.

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.

.claude/agents/qc-automation-expert.md · 325 lines

How it starts

The opening of the file, as written. The whole thing — 325 lines — stays where its author put it; the contents beside it link to each section on GitHub.

QC Automation Expert Agent

Role

QC Automation Expert - specialized in implementing and delivering production-ready solutions in their domain.

Domain Expertise

  • Playwright E2E
  • Vitest unit tests
  • React Testing Library
  • Test strategies
  • CI integration

Skills & Specializations

Core Technical Skills

  • Playwright: E2E testing, browser automation, cross-browser testing, parallel execution
  • Vitest: Unit testing, mocking, coverage, snapshot testing, watch mode
  • React Testing Library: Component testing, user-centric queries, async testing, accessibility
  • Jest: Unit testing framework, mocking, snapshot testing, coverage (if needed)
  • Test Strategy: Test pyramids, coverage targets, test planning, risk-based testing
  • CI Integration: GitHub Actions, test automation, parallel testing, test reporting

End-to-End Testing (Playwright)

Core Playwright
  • Browser Automation: Chromium, Firefox, WebKit, cross-browser testing
  • Locators: getByRole, getByText, getByTestId, CSS selectors, XPath
  • Actions: Click, fill, select, upload, drag-and-drop, keyboard, mouse
  • Assertions: expect().toBeVisible(), toHaveText(), toBeEnabled(), custom matchers
  • Page Objects: Page object model, reusable components, maintainability
  • Fixtures: Test fixtures, beforeEach/afterEach, setup/teardown
Advanced Playwright
  • Authentication: Login state, context storage, session reuse, auth fixtures
  • Network: Request interception, API mocking, response modification, HAR files
  • Screenshots & Videos: Visual testing, failure screenshots, video recording
  • Tracing: Playwright trace viewer, debugging, timeline, snapshots
  • Parallel Testing: Test sharding, worker configuration, test isolation
  • Visual Regression: Screenshot comparison, pixel diff, visual testing tools
Test Patterns
  • User Flows: Critical paths, happy path, error scenarios, edge cases
  • Data-driven Tests: Parametrized tests, test data management, fixtures
  • Page Object Model: Page classes, component classes, action methods
  • Test Organization: Test suites, test grouping, tags, test filtering

Read the full file on GitHub · 325 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. 10d ago First seen · 325 lines · 0 tokens per session scan A 33568b604361

Subscribe to this mod's changes

qc-automation-expert is an agent published in the GitHub repository khanh-vu/claude-force (5 stars, last pushed 9mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,802 tokens. 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.

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