specflow-reqnroll

specflow-reqnroll is a skill for Claude Code from aks-builds/quality-skills. It costs 149 tokens per session (2,499 once invoked), scanned A, original, MIT.

A guide for building and maintaining behavior-driven tests in .NET with SpecFlow or its open-source successor, Reqnroll. These tests describe software behavior in readable Given/When/Then steps.

In plain words
What is it for?
Use it to create, update, troubleshoot, or migrate .NET BDD tests and feature files, including projects using xUnit, NUnit, or MSTest.
Why use it?
It helps teams write, debug, and move older SpecFlow test suites to Reqnroll without guessing about versions, packages, or test setup.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the quality-skills plugin — 57 skills shipped together

Good fit Use it to create, update, troubleshoot, or migrate .NET BDD tests and feature files, including projects using xUnit, NUnit, or MSTest.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aks-builds/quality-skills/specflow-reqnroll
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add aks-builds/quality-skills --skill specflow-reqnroll
Clone the repo
git clone --depth 1 https://github.com/aks-builds/quality-skills

Made for: Claude Code.

Or install quality-skills, the plugin that ships this one along with the rest of its 57 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for specflow-reqnroll

README.md
[![agentmods](https://agentmods.dev/badge/skills/aks-builds/quality-skills/specflow-reqnroll/github.svg)](https://agentmods.dev/skills/aks-builds/quality-skills/specflow-reqnroll)
Your own site
<a href="https://agentmods.dev/skills/aks-builds/quality-skills/specflow-reqnroll"><img src="https://agentmods.dev/badge/skills/aks-builds/quality-skills/specflow-reqnroll/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for specflow-reqnroll

Your own site · 80×15
<a href="https://agentmods.dev/skills/aks-builds/quality-skills/specflow-reqnroll"><img src="https://agentmods.dev/badge/skills/aks-builds/quality-skills/specflow-reqnroll.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 149 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,499 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00149 $0.02499
Opus 5 $0.00075 $0.01249
Sonnet 5 $0.00030 $0.00500
Haiku 4.5 $0.00015 $0.00250

Measured 9d ago against content hash 9d0ddcf39d64, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

specflow-reqnroll scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/specflow-reqnroll/SKILL.md · 266 lines

How it starts

The opening of the file, as written. The whole thing — 266 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SpecFlow & Reqnroll (.NET BDD)

You are an expert in BDD on .NET — historically via SpecFlow, and going forward via Reqnroll (the open-source successor maintained by the community after SpecFlow's commercial wind-down). Your goal is to help engineers run, maintain, and migrate .NET BDD suites without fabricating attribute names, NuGet package IDs, or migration tooling. When uncertain, point the reader to reqnroll.net or the archived SpecFlow docs.

Initial Assessment

Check .agents/qa-context.md (fallback: .claude/qa-context.md) before answering. Pay attention to:

  • SpecFlow status — Tricentis announced SpecFlow's end-of-life. Reqnroll is the actively-maintained, open-source, near-drop-in fork. New projects should use Reqnroll; existing SpecFlow projects should plan migration.
  • .NET version — Reqnroll targets modern .NET (6/7/8/9). Older SpecFlow installations may be pinned to .NET Framework.
  • Test runner — xUnit, NUnit, or MSTest. Both SpecFlow and Reqnroll integrate with all three.
  • Migration state — is the team on SpecFlow today, planning Reqnroll migration, or starting fresh?
  • Reporting — SpecFlow+ LivingDoc was a paid feature; Reqnroll has community-equivalent open-source options.

If the file does not exist, ask: SpecFlow or Reqnroll, .NET version, test runner, current/planned reporting tool.


The SpecFlow → Reqnroll situation

In 2024, Tricentis announced SpecFlow would be deprecated. Reqnroll forked SpecFlow's codebase and continues active development as an open-source project. For most teams:

  • New project: use Reqnroll.
  • Existing SpecFlow project: plan a Reqnroll migration. The migration is typically straightforward (rename NuGet packages, rename namespaces — the surface API is highly compatible).
  • Don't pretend SpecFlow has a long future: even if your current build still works, the package will not get fixes for new .NET versions indefinitely.

Reqnroll keeps the same Gherkin features and the same [Binding] / [Given] / [When] / [Then] attribute model as SpecFlow — most existing code compiles after a namespace swap.

Read the full file on GitHub · 266 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 266 lines · 149 tokens per session scan A 9d0ddcf39d64

Subscribe to this mod's changes

specflow-reqnroll is a skill published in the GitHub repository aks-builds/quality-skills (2 stars, last pushed 6d ago), licensed MIT. It adds 149 tokens to every session and 2,499 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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