qa-tester

qa-tester is a skill for Claude Code, Codex from jggomez/expert-ai-developer-skills. It costs 56 tokens per session (1,234 once invoked), scanned A, original, Apache-2.0.

Designs and executes Unit, Integration, and E2E test suites and authors concise, actionable IEEE/ISTQB QA Test Matrix artifacts (docs/ /test-matrix.md <= 80 lines) backed by empirical exit code 0 terminal proof.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code.

Install with agentmods
npx agentmods add skills/jggomez/expert-ai-developer-skills/qa-tester
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 jggomez/expert-ai-developer-skills --skill qa-tester
Clone the repo
git clone --depth 1 https://github.com/jggomez/expert-ai-developer-skills

Made for: Claude Code, Codex.

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 qa-tester

README.md
[![agentmods](https://agentmods.dev/badge/skills/jggomez/expert-ai-developer-skills/qa-tester/github.svg)](https://agentmods.dev/skills/jggomez/expert-ai-developer-skills/qa-tester)
Your own site
<a href="https://agentmods.dev/skills/jggomez/expert-ai-developer-skills/qa-tester"><img src="https://agentmods.dev/badge/skills/jggomez/expert-ai-developer-skills/qa-tester/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 qa-tester

Your own site · 80×15
<a href="https://agentmods.dev/skills/jggomez/expert-ai-developer-skills/qa-tester"><img src="https://agentmods.dev/badge/skills/jggomez/expert-ai-developer-skills/qa-tester.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,234 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 $0.00056 $0.01234
Opus 5.5 $0.00022 $0.00494
Sonnet 5.5 $0.00011 $0.00247
Haiku 4.5 $0.00006 $0.00123

Measured today against content hash 19189aff6dd9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

qa-tester 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 today.

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/antigravity/python-backend/skills/qa-tester/SKILL.md · 55 lines

How it starts

The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.

QA Automation & E2E Tester Skill

Overview

This skill governs integration/E2E test automation and produces an actionable, IEEE/ISTQB-aligned QA Test Matrix (docs/<feature-name>/test-matrix.md, strictly <= 80 lines). Every test case (TC-XX) documents explicit Objective, numbered Steps, Expected Result, and Automated Test mapping to US-XX/AC-XX, backed by real terminal execution with exit code 0.

When to Use

SDLC Tier Adaptation & Trigger Rules

  • Tier 1 (Fast-Track): Single-file bugfixes, typos, chores, or localized refactors. Execute only the scoped test file (exit code 0 proof) and SKIP test-matrix.md to preserve 70–85% token/latency savings.
  • Tier 2 (Standard): Multi-file features, endpoints, schemas, or UI views. Execute the full test suite (exit code 0) and author docs/<feature-name>/test-matrix.md (<= 80 lines).
  • Tier 3 (Mission-Critical): End-to-end features, auth/payments, or breaking changes. Execute full test pyramid suites (exit code 0), author docs/<feature-name>/test-matrix.md (<= 80 lines), and serve on the Adversarial Verification Committee.
  • Delegate Elsewhere: Production code fixes -> code-implementer; static/OWASP audit -> compliance-verifier.

Process

Phase 1: Scenario Design Across the Test Pyramid

  1. Extract US-XX and AC-XX from ## Product in docs/<feature-name>/spec.md (or git diff when product discovery was skipped).
  2. Cover Happy Path, Negative (validation/auth/4xx), and Boundary/Edge (nulls, limits, concurrency, timeouts) across Unit, Integration, and E2E levels.
  3. Author deterministic Arrange-Act-Assert (AAA) tests in tests/unit/, tests/integration/, or tests/e2e/ with zero arbitrary sleep() calls and clean fixture teardown.

Phase 2: Terminal Execution & Actionable Test Matrix (<= 80 lines)

  1. Run the test suite in the terminal (pytest, npm test, flutter test) and verify verbatim exit code 0.
  2. For Tier 2 and Tier 3, write docs/<feature-name>/test-matrix.md (<= 80 lines) following references/test-matrix-template.md with two exact sections:
    • ## 1. Execution Summary (4 lines: Runner Command, Results passed/failed count, Exit Code, Date).
    • ## 2. Test Case Matrix: Every case (TC-01, TC-02...) MUST include all 8 fields: ID, Ref (US-XX/AC-XX), Level (Unit|Integration|E2E), Objective, Steps (1. ... 2. ... 3. ...), Expected Result, Automated Test (path::test_fn), and Status (PASS|FAIL).

Read the full file on GitHub · 55 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. today First seen · 55 lines · 56 tokens per session scan A 19189aff6dd9

Subscribe to this mod's changes

qa-tester is a skill published in the GitHub repository jggomez/expert-ai-developer-skills (30 stars, last pushed yesterday), licensed Apache-2.0. It adds 56 tokens to every session and 1,234 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-11-06.

Related

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