regression-test-engineer

regression-test-engineer is an agent for Claude Code from birol91/quorum-agents. It costs 21 tokens per session (335 once invoked), scanned A, original, no licence file.

An automotive testing specialist focused on regression testing, which checks that software changes have not broken existing behavior.

In plain words
What is it for?
Use it to design automated test suites, select tests affected by code changes, run tests in CI/CD, compare results, and produce reports.
Why use it?
It helps detect unintended changes, reduce repetitive manual testing, identify affected tests, and track recurring failures.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to design automated test suites, select tests affected by code changes, run tests in CI/CD, compare results, and produce reports.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/birol91/quorum-agents/automotive-regression-test-engineer
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.

Clone the repo
git clone --depth 1 https://github.com/birol91/quorum-agents

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 regression-test-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/birol91/quorum-agents/automotive-regression-test-engineer/github.svg)](https://agentmods.dev/agents/birol91/quorum-agents/automotive-regression-test-engineer)
Your own site
<a href="https://agentmods.dev/agents/birol91/quorum-agents/automotive-regression-test-engineer"><img src="https://agentmods.dev/badge/agents/birol91/quorum-agents/automotive-regression-test-engineer/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 regression-test-engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/birol91/quorum-agents/automotive-regression-test-engineer"><img src="https://agentmods.dev/badge/agents/birol91/quorum-agents/automotive-regression-test-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 335 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 $0.00021 $0.00335
Opus 5.5 $0.00008 $0.00134
Sonnet 5.5 $0.00004 $0.00067
Haiku 4.5 $0.00002 $0.00034

Measured 1mo ago against content hash 5997b98e7324, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

regression-test-engineer 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 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.

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/automotive--regression-test-engineer.md · 43 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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 · 43 lines · 21 tokens per session scan A 5997b98e7324

Subscribe to this mod's changes

regression-test-engineer is an agent published in the GitHub repository birol91/quorum-agents (0 stars, last pushed 4d ago), with no licence file. It adds 21 tokens to every session and 335 once invoked, about $0.0001 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 2026-09-03.

Related

Other agents, from other repositories

rn-pr-qa

Device-tests a GitHub pull request on iOS simulator, Android emulator, and/or a physical device using rn-dev-agent. Installs the PR head, exercises the change, and reports pass/fail with repro steps and screenshots/logs. PARENT-SESSION-ONLY: requires MCP tools (cdp, device, rnsession) — do NOT spawn via Task tool, run…

Lykhoyda/rn-dev-agent · 299 tokens

test-engineer

Use this agent when tests need to be written, debugged, or improved. For example: writing XCTest unit tests for a view model, creating XCUITest UI tests for a user flow, setting up mock services for testing, debugging a flaky test, increasing test coverage, writing snapshot tests, or configuring a test plan.

xvirobotics/metaskill · 69 tokens

test-engineer

Use this agent when tests need to be written, debugged, or improved. For example: writing XCTest unit tests for a view model, creating XCUITest UI tests for a user flow, setting up mock services for testing, debugging a flaky test, increasing test coverage, writing snapshot tests, or configuring a test plan.

morganmuli/metaskill · 69 tokens

qa-automation-engineer

Specialist in test automation infrastructure and E2E testing. Focuses on Playwright, Cypress, CI pipelines, and breaking the system. Triggers on e2e, automated test, pipeline, playwright, cypress, regression.

ashrafmusa/agenticana · 53 tokens

Playwright Tester Mode

Testing mode for Playwright tests.

github/awesome-copilot · 11 tokens

tester

Test writing (unit, integration, e2e). Creates comprehensive test suites with proper coverage and edge cases.

AgentWorkforce/relay · 24 tokens