test-driven-development

testing-anti-patterns

obra

Use when writing or changing tests, adding mocks, or tempted to add test-only methods to production code - prevents testing mock behavior, production pollution with test-only methods, and mocking without understanding dependencies

systematic-debugging

obra

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes - four-phase framework (root cause investigation, pattern analysis, hypothesis testing, implementation) that ensures understanding before attempting solutions

finishing-a-development-branch

obra

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup

condition-based-waiting

obra

Use when tests have race conditions, timing dependencies, or inconsistent pass/fail behavior - replaces arbitrary timeouts with condition polling to wait for actual state changes, eliminating flaky tests from timing guesses

testing-skills-with-subagents

obra

Use when creating or editing skills, before deployment, to verify they work under pressure and resist rationalization - applies RED-GREEN-REFACTOR cycle to process documentation by running baseline without skill, writing to address failures, iterating to close loopholes

writing-skills

obra

Use when creating new skills, editing existing skills, or verifying skills work before deployment - applies TDD to process documentation by testing with subagents before writing, iterating until bulletproof against rationalization

testing-builder

Toowiredd

Automatically generates comprehensive test suites (unit, integration, E2E) based on code and past testing patterns. Use when user says "write tests", "test this", "add coverage", or after fixing bugs to create regression tests. Eliminates testing friction for ADHD users.

rapid-prototyper

Toowiredd

Creates minimal working prototypes for quick idea validation. Single-file when possible, includes test data, ready to demo immediately. Use when user says "prototype", "MVP", "proof of concept", "quick demo".

webhook-tester

CuriousLearner

Test webhook integrations locally with tunneling, inspection, and debugging tools.

test-generator

CuriousLearner

Generate unit tests based on existing code patterns and testing frameworks.

api-tester

CuriousLearner

Quick API endpoint testing with comprehensive request/response validation.

seed-data-generator

CuriousLearner

Generate realistic test data for database development, testing, and demos.