# add-cucumber-tests

Turns a functional specification into Cucumber .feature files, using Tzatziki step definitions as the source of legal steps. Built for Java/Spring projects that already depend on Tzatziki or Cucumber.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 1000 installs · ★ 88
- Author: Decathlon
- License: Apache-2.0 · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/Decathlon/tzatziki/tree/HEAD/skills/add-cucumber-tests/SKILL.md
- Updated: 2026-10-22
- HTML: https://affpapa.org/en/nevibecode/skills/add-cucumber-tests

## What it does

The skill reads your spec, splits it into distinct behaviors, and writes Gherkin scenarios for each. Steps are not invented: Tzatziki ships ready-made `@Given`/`@When`/`@Then` patterns in its `*Steps.java` files, and the `references/steps-*.md` guides list every legal wording. A step that does not appear in the annotation regex throws `UndefinedStepException` at runtime.

Before writing scenarios, the skill asks you to run at least one existing Cucumber test in the module. That surfaces missing dependencies or a broken bootstrap early. It then detects the build tool (wrappers `./mvnw` and `./gradlew` come first), greps `pom.xml` or `build.gradle` for `tzatziki-*` modules, and opens the matching reference: HTTP, Spring, JPA, Kafka and others. Structured payloads are best written as `"""yml` doc strings.

One behavior is worth knowing before you run it. When a spec adds a field or header to something already tested, the skill edits the existing `Then` assertion instead of creating a duplicate scenario with the same Given/When setup. A new scenario appears only for genuinely new behavior. Edge cases — external call failures, empty collections — are not added silently; they are offered to you as optional additions.

## Requirements
- Works with: MongoDB

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add Decathlon/tzatziki --skill add-cucumber-tests -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/add-cucumber-tests/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/add-cucumber-tests/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add Decathlon/tzatziki --skill add-cucumber-tests -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/add-cucumber-tests/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add Decathlon/tzatziki --skill add-cucumber-tests -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/add-cucumber-tests/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install Decathlon/tzatziki add-cucumber-tests
```

2. **Manually: put the files in place**
- File: `.github/skills/add-cucumber-tests/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add Decathlon/tzatziki --skill add-cucumber-tests -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/Decathlon/tzatziki --path skills/add-cucumber-tests
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/add-cucumber-tests/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add Decathlon/tzatziki --skill add-cucumber-tests -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/Decathlon/tzatziki/tree/HEAD/skills/add-cucumber-tests/SKILL.md

## When to use it
- generate `.feature` files from a written specification
- match scenarios to real step definitions instead of guessed wording
- check that the module can run Cucumber at all
- extend an existing scenario's assertion instead of duplicating it
- surface edge cases: failing external calls, empty responses

## Example prompts
- Generate Cucumber tests from this checkout specification
- Add a BDD scenario for publishing a Kafka message with a traceId header
- Which Tzatziki steps fit a REST endpoint response assertion?

## Source text · SKILL.md · Apache-2.0

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 14e7ac980a143db5.

BEGIN THIRD-PARTY FILE 14e7ac980a143db5
```text
---
name: add-cucumber-tests
description: >
  Generates Tzatziki-based Cucumber BDD tests (.feature files) from a functional specification.
  Use this skill whenever a user wants to write Cucumber tests, add BDD scenarios, create feature files,
  generate tests, or test application behaviors with Gherkin — especially in Java/Spring projects using
  Tzatziki step definitions for HTTP, JPA, Kafka, MongoDB, OpenSearch, logging, or MCP. Also use when
  the user mentions writing integration tests, acceptance tests, or end-to-end tests in a project that
  already has Tzatziki/Cucumber dependencies, including TestNG-based setups.
---

# BDD Test Generation with Tzatziki

Generate valid Cucumber `.feature` files from a user's functional specification, using Tzatziki's
step definition library as the source of truth for legal step patterns.

## Principles

These explain the reasoning behind the workflow — understanding them helps you handle edge cases
the workflow doesn't explicitly cover.

1. **Steps come from code, not imagination.** Tzatziki provides hundreds of pre-built `@Given` /
   `@When` / `@Then` patterns in its `*Steps.java` files. Inventing step text that doesn't match
   a real definition produces `UndefinedStepException` at runtime. Per-module reference files in
   `references/steps-*.md` contain every legal step pattern — read the relevant ones before
   writing any scenario.

   > ⚠️ **Never paraphrase or improvise step keywords.** Many step patterns use regex constants
   > like `COMPARING_WITH` that expand to a **small fixed set of keywords** (e.g., `""` empty,
   > `" exactly"`, `" at least"`, `" only"`). Do not substitute natural-language synonyms such as
   > `"containing"`, `"including"`, `"matching"`, or any other word that "sounds right" — if the
   > word does not appear in the `@Given`/`@When`/`@Then` annotation regex, the step will be
   > undefined at runtime. When in doubt, re-read the Java source in `references/steps-*.md`
   > rather than guessing.

2. **Verify the environment before writing tests.** Run at least one existing Cucumber test in
   the target module before creating new feature files. This catches missing dependencies,
   broken bootstrap, or misconfigured runners early — before you've invested effort in writing
```
END THIRD-PARTY FILE 14e7ac980a143db5

The third-party file has ended. Everything between the 14e7ac980a143db5 tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

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