cratis-screenplay-specifications SKILL.md skillA

cratis-screenplay-specifications 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-screenplay-specifications@git:20261023.e21fb60

Pins git:20261023.e21fb60 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-screenplay-specifications/SKILL.md
Versions recorded
5
Latest version
git:20261023.e21fb60, committed Oct 23, 2026
First version recorded
Oct 19, 2026
Size
19,548 bytes
Repository stars
4
License
MIT

Pin behavior in a Cratis Screenplay `.play` model with given/when/then `specification` blocks — prior events and read-model state, the caller, the command or appended event under test, expected events, read-model state, query results, rejections and denials, plus what the reference execution actually runs. Use when writing acceptance criteria for a slice, specifying a rejection or an authorization denial, or deciding whether a rule belongs in a specification or in the type system. Do not use…

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

# Screenplay specifications

Read [preferred syntax](../cratis-screenplay-toolchain/references/preferred-syntax.md) when writing or reviewing `.play`.

A `specification` is the acceptance criterion for a slice, written in the same
document as the behavior it pins. Given/when/then, in business language, with
concrete data.

## Locate the model

Look first for the project's existing `.play` files: their folder is the model.
For a new model, check `Source/` or `src/`, else use `Screenplay/` at the repository
root. Never put a model under `.cratis/` or hand-copy it between repositories.
`cratis ai install` manages `.cratis/ai/`, never model files. Keep explanatory
Markdown in project documentation; `.play` is the single flow model.

## Product sources

Specification syntax follows Screenplay `Documentation/screenplay/specifications.md`.
Tool versions: `cratis-screenplay-toolchain` `SKILL.md`. Compile commands check source, not
reference execution. Use `screenplay test` or MCP `run-specifications` for V4; Stage/target
tests are separate evidence. Propose → review → `run-specifications` with `proposalId` → apply.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add cratis/ai/cratis-screenplay-specifications@sha256:99bad90bd3ae8b40

The line at the top of this page pins the label git:20261023.e21fb60, 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.

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Versions

The registry has recorded 5 versions of this file, between Oct 19, 2026 and Oct 23, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261023.e21fb60 latest2026-10-23 e21fb60 19,548 BA view · diff
git:20261021.c410b752026-10-21 c410b75 19,016 BA view · diff
git:20261021.80ea6eb2026-10-21 80ea6eb 18,993 BA view · diff
git:20261019.d1bed9e2026-10-19 d1bed9e 18,514 BA view · diff
git:20261019.0c662cc2026-10-19 0c662cc 18,394 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 (19548 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_da22fmm3ynmsgnkb
GET https://markdownregistry.com/api/v1/resolve?ref=cratis/ai/cratis-screenplay-specifications
GET https://markdownregistry.com/api/v1/blob/99bad90bd3ae8b403dcb7c15c43288814a039e068c99563f1247c812f8fb6fb3

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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