cratis-fundamentals-concept-go SKILL.md skillA
cratis-fundamentals-concept-go from cratis/ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cratis/ai/cratis-fundamentals-concept-go@git:20261013.d89a1b7Pins git:20261013.d89a1b7 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-fundamentals-concept-go/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261013.d89a1b7, committed Oct 13, 2026
- First version recorded
- Oct 12, 2026
- Size
- 4,958 bytes
- Repository stars
- 4
- License
- MIT
Define named Go domain values with Fundamentals.Go concepts, explicit UUID text and JSON codecs, and scalar recognition. Use when an identity or scalar must not be interchangeable with its primitive. Do not use for C# ConceptAs types, event migration or dependency-injection setup.
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
<!-- Copyright (c) Cratis. All rights reserved. --> <!-- Licensed under the MIT license. See LICENSE file in the project root for full license information. --> # Typed domain values in Go > **Experimental v0:** minor releases may break APIs; pin the module version you test against. > Companion guidance: Chronicle.Go and Arc.Go. Use a defined type for each domain value, not a type alias that remains interchangeable with every UUID/string. Plain constructors are enough; adopting concepts does not require a dependency-injection container. ## Verified product sources | Product | Source checked | | --- | --- | | Fundamentals.Go (`github.com/cratis/fundamentals.go`) | `concepts/concept.go`, `concepts/uuid.go`, `concepts/uuid_dotnet.go`, `concepts/underlying.go`, `concepts/check_json.go`, `documentation_examples_test.go` | [Source](https://github.com/Cratis/Fundamentals.Go) is authoritative, not an older installation pin on a getting-started page. The root module is standard-library-only and requires Go 1.26. ## Define and encode an identity Install `github.com/cratis/fundamentals.go` at your chosen release into a consumer module. …
Read the whole file at its exact version.
How to install
mdr add cratis/ai/cratis-fundamentals-concept-go@sha256:d70d157a5a117370The line at the top of this page pins the label git:20261013.d89a1b7, 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_jlv6z4zjy3ogcijh)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Oct 12, 2026 and Oct 13, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261013.d89a1b7 latest | 2026-10-13 | d89a1b7 | 4,958 B | A | view · diff |
| git:20261012.1301a3d | 2026-10-12 | 1301a3d | 5,056 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 (4958 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
cratis/ai · 4 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jlv6z4zjy3ogcijh GET https://markdownregistry.com/api/v1/resolve?ref=cratis/ai/cratis-fundamentals-concept-go GET https://markdownregistry.com/api/v1/blob/d70d157a5a117370381e06b539d3a0d0c682288917a6cf433d92b019e3655f34
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.