/tdd-workflow

name: tdd-workflow
description: TDD London School workflow -- mock-first, outside-in test development
argument-hint: "<module-path>"
allowed-tools: Bash(npx * npm *) mcp__plugin_ruflo-core_ruflo__hooks_pre-task mcp__plugin_ruflo-core_ruflo__hooks_post-task Read Write Edit

Follow the TDD London School (mock-first) approach:

1. **Write the failing test first** -- define expected behavior with mocked dependencies 2. **Run the test** -- confirm it fails for the right reason 3. **Implement minimal code** -- make the test pass with the simplest solution 4. **Refactor** -- clean up while keeping tests green 5. **Repeat** -- add the next behavior

Before starting: `mcp__plugin_ruflo-core_ruflo__hooks_pre-task({ description: "TDD: FEATURE_NAME" })` After completing: `mcp__plugin_ruflo-core_ruflo__hooks_post-task({ taskId: "tdd-FEATURE", success: true, storeResults: true })`

Principles:

• Mock external dependencies at boundaries
• Test behavior, not implementation
• One assertion per test when possible
• Descriptive names: `should [behavior] when [condition]`