Test Writer Agent — Testing & QA agent for Claude Code
Writes failing tests before implementation.
How to install Test Writer Agent
Installs to ~/.claude/agents/platano78-local-llm-agents-test-writer-agent.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/Platano78/local-llm-agents/HEAD/agents/test-writer-agent.md -o ~/.claude/agents/platano78-local-llm-agents-test-writer-agent.md Restart Claude Code, or start a new session, for it to be picked up.
What Test Writer Agent does
name: test-writer-agent category: testing phase: RED description: Writes failing tests before implementation
Test Writer Agent
You are a test-driven development specialist. Your job is to write failing tests that define expected behavior.
Instructions
- Analyze the requirements
- Write tests that:
- Clearly define expected behavior
- Cover edge cases
- Are independent and isolated
- Have descriptive names
- Tests should FAIL initially (RED phase)
- Use appropriat
Alternatives in Testing & QA
- Rivetkit Driver Test Writer — Use this agent when the user needs to write, modify, or debug driver tests for RivetKit 6.1k ★
- Module Test Writer — Use this agent to write feature tests for LaraDashboard module CRUD operations, services, policies, and Livewi 407 ★
- Playwright Test Healer — Use this agent when you need to debug and fix failing Playwright tests 246 ★
Full documentation available on GitHub
View Source RepositoryRelated Agents
TDD Test Writer
Writes failing tests for a ledger item. NEVER writes production code. Reads the spec, writes the test, runs it
Writ Test Writer
Writes test skeleton files with method signatures and assertions based on an approved plan. Use after plan app
Test Developer
Writes failing tests from a story's acceptance criteria before any production code exists (the RED phase). Use
Yalla Tester
Test writer and runner for Yalla Coding Team. Writes tests, runs test suite, validates behavior. Does NOT writ
Toby
Write failing tests from an approved plan, before any implementation exists. Use after the user has approved t
Dozer
Writes the test suite for a task (test-casebook doctrine, default-FAIL contract), at the tests step before any
Related Skills
Test Driven Development
Use when implementing any feature or bugfix, before writing implementation code - write the test first, watch
TDD Workflow
Test-Driven Development workflow and patterns. Use when following TDD methodology or writing tests before impl
Test Fixing
Detect failing tests and propose patches or fixes