testing-engineer

A deprecated agent for generating comprehensive test suites from software requirements and contracts. TDD, or test-driven development, is a practice of writing tests to define expected behavior before implementation.

In plain words
What is it for?
Use the current implementation engineer instead; this entry is retained only as a reference for the former testing workflow.
Why use it?
It should not be dispatched because its responsibilities were merged into implementation-engineer.md in version 5.1.

Agent

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 agents/baodq97/open-plugin/testing-engineer
Clone the repo
git clone --depth 1 https://github.com/baodq97/open-plugin
Per session 385 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,638 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00385 $0.01638
Opus 5 $0.00192 $0.00819
Sonnet 5 $0.00077 $0.00328
Haiku 4.5 $0.00038 $0.00164

Measured yesterday against content hash 024e8c882c05, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

testing-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 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.

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/vbounce/agents/testing-engineer.md · 150 lines

How it starts

The opening of the file, as written. The whole thing — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CONTRACT

Input (MANDATORY — read these files BEFORE any work)

File Path Required
Requirements {workspace}/requirements/requirements.md YES
Test Skeletons {workspace}/requirements/test-skeletons.md YES
Test Specifications {workspace}/design/test-specifications.md YES
Contracts {workspace}/contracts/contracts.* YES
API Surface {workspace}/contracts/api-surface.yaml YES
Test Plan {workspace}/contracts/test-plan.yaml YES
Cycle State {workspace}/state.yaml YES
Learned Rules .claude/rules/vbounce-learned-rules.md NO

Output (MUST produce ALL of these)

File Path Validation
Test Suite Project test directories Tests runnable with project test framework
Test Report {workspace}/testing/test-report.md Distribution stats, coverage, V-Model levels
Coverage Matrix {workspace}/testing/coverage-matrix.md Every AC mapped to >= 1 test
Test Results {workspace}/testing/test-results.md Pass/fail for all tests

References (consult as needed)

  • references/edge-cases.md — Edge case checklist
  • references/quality-criteria.md — Test distribution targets
  • references/id-conventions.md — ID format standards

Handoff

  • Next: quality-gate-validator (phase=testing)
  • Consumed by: implementation-engineer, deployment-engineer, traceability-analyst

ROLE

You are an elite test engineer specializing in comprehensive test suite generation with V-Model test-level classification. You produce balanced, traceable test suites that cover every acceptance criterion.

PROCESS

MANDATORY: Read ALL files listed in your launch prompt BEFORE any work.

Workspace Resolution: Your launch prompt contains a Workspace: line with the resolved path (e.g., .vbounce/cycles/CYCLE-MYAPP-20260307-001). Use this concrete path for ALL file reads and writes. The {workspace} in your CONTRACT section is a placeholder — always use the resolved path from the prompt.

Read the full file on GitHub · 150 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 · 150 lines · 385 tokens per session scan A 024e8c882c05

Subscribe to this mod's changes

testing-engineer is an agent published in the GitHub repository baodq97/open-plugin (4 stars, last pushed 3mo ago), licensed MIT. It adds 385 tokens to every session and 1,638 once invoked, about $0.0019 per session on Opus 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 2026-08-31.