cratis-specifications-csharp SKILL.md skillA

cratis-specifications-csharp from cratis/ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add cratis/ai/cratis-specifications-csharp@git:20261016.b081bc9

Pins git:20261016.b081bc9 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
cratis/ai
Path
.cratis/ai/skills/cratis-specifications-csharp/SKILL.md
Versions recorded
5
Latest version
git:20261016.b081bc9, committed Oct 16, 2026
First version recorded
Oct 14, 2026
Size
16,227 bytes
Repository stars
4
License
MIT

Write C# specifications with Cratis.Specifications using the Establish/Because/should_ pattern and the for_/when_/and_ folder hierarchy. Use when adding or restructuring C# specs in any Cratis repository, choosing between an isolated unit spec and an in-process scenario spec, or building reusable given/ contexts. Do not use for TypeScript or React specs, and do not use it to decide what a command, projection, or reactor should do.

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

# Cratis C# specifications

Specifications are executable documentation. The folder tree reads like a table
of contents, and each file states one setup, one action, and one or more
focused assertions.

Read [query and decision scenarios](../cratis-application-slice-specifications/references/query-and-decision-scenarios.md)
when specifying query emissions, routed conflicts or protected projection reads.
Seed actual events for a guarded command; pinned models cannot supply a guard.
`new CommandScenario<T>()` selects the in-process decision log from the command's
read-protection mode and dependencies, so `UseDecisionReads()` is not called. `Perform`/`Observe` need configured services/principal, and
MongoDB observations still need real infrastructure.

## Verified product sources

Sources:

| Package | Purpose |
| --- | --- |
| `Cratis.Specifications.XUnit` | `Specification` base, lifecycle discovery, `ShouldXxx` assertions, optional shared lifecycle |
| `Cratis.Specifications` | `Catch.Exception`, `SpecificationMethods` (dependency of the XUnit package) |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add cratis/ai/cratis-specifications-csharp@sha256:4dd72013857574d2

The line at the top of this page pins the label git:20261016.b081bc9, 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.

Badge

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[![mdr](https://markdownregistry.com/badge/art_mrdkiftnepwvwlr5.svg)](https://markdownregistry.com/a/art_mrdkiftnepwvwlr5)

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Versions

The registry has recorded 5 versions of this file, between Oct 14, 2026 and Oct 16, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261016.b081bc9 latest2026-10-16 b081bc9 16,227 BA view · diff
git:20261014.8b817dc2026-10-14 8b817dc 16,081 BA view · diff
git:20261014.97fa7502026-10-14 97fa750 16,027 BA view · diff
git:20261014.64fcc062026-10-14 64fcc06 16,354 BA view · diff
git:20261014.c13a0232026-10-14 c13a023 16,086 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (16227 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

GitHub

cratis/ai · 4 stars · license MIT · pushed 2026-11-04 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_mrdkiftnepwvwlr5
GET https://markdownregistry.com/api/v1/resolve?ref=cratis/ai/cratis-specifications-csharp
GET https://markdownregistry.com/api/v1/blob/4dd72013857574d2f736381f3b9ea31ae2c411cba4c5a61a732af48d35423618

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.

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