nw-bdd-methodology SKILL.md skillA
nw-bdd-methodology from nwave-ai/nwave is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nwave-ai/nwave/nw-bdd-methodology@git:20260320.d98f3cbPins git:20260320.d98f3cb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nwave-ai/nwave
- Path
nWave/skills/nw-bdd-methodology/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260320.d98f3cb, committed Mar 20, 2026
- First version recorded
- Mar 17, 2026
- Size
- 6,094 bytes
- Repository stars
- 633
- License
- MIT
BDD patterns for acceptance test design - Given-When-Then structure, scenario writing rules, pytest-bdd implementation, anti-patterns, and living documentation.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# BDD Methodology for Acceptance Test Design ## Core Philosophy Test units of behavior, not units of code. Acceptance tests validate business outcomes through public interfaces, decoupled from implementation. ## Outside-In Double-Loop TDD The acceptance-designer creates the outer loop of Outside-In TDD. Development starts from user perspective, drives inward. **Outer loop (acceptance/BDD)**: Hours to days | User perspective, business language | Defines "done" | Scenarios describe user goals and observable outcomes, not internals | Failing outer-loop test is the starting signal for implementation **Inner loop (unit/TDD)**: Minutes | Developer perspective, technical terms | Software-crafter owns this loop Workflow: 1. Write failing acceptance test from user perspective (outer loop -- outside) 2. Software-crafter drops to inner loop: unit tests to implement components (inside) 3. Iterate inner loop until acceptance test passes 4. Passing acceptance test proves user value delivered 5. Repeat for next behavior Outer loop defines WHAT users need (outside). Inner loop drives HOW to build it (inside). ## Given-When-Then Structure ```gherkin …
Read the whole file at its exact version.
How to install
mdr add nwave-ai/nwave/nw-bdd-methodology@sha256:d7b984b8b6438258The line at the top of this page pins the label git:20260320.d98f3cb, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_f7ebwag5zdjpstvg)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Mar 17, 2026 and Mar 20, 2026, about one every day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260320.d98f3cb latest | 2026-03-20 | d98f3cb | 6,094 B | A | view · diff |
| git:20260318.e6a0e19 | 2026-03-18 | e6a0e19 | 6,072 B | A | view · diff |
| git:20260317.1d16147 | 2026-03-17 | 1d16147 | 6,063 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6094 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nwave-ai/nwave · 633 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_f7ebwag5zdjpstvg GET https://markdownregistry.com/api/v1/resolve?ref=nwave-ai/nwave/nw-bdd-methodology GET https://markdownregistry.com/api/v1/blob/d7b984b8b6438258c0289bd2aa12dc841f0772d451ca818bbff18c4aceea415d
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.