pragmatic-use-foundation SKILL.md skillA
pragmatic-use-foundation from pragmatic-design/pragmatic.design is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add pragmatic-design/pragmatic.design/pragmatic-use-foundation@git:20261012.c429334Pins git:20261012.c429334 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- pragmatic-design/pragmatic.design
- Path
marketplace/plugins/pragmatic-design/skills/pragmatic-use-foundation/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261012.c429334, committed Oct 12, 2026
- First version recorded
- Oct 2, 2026
- Size
- 24,742 bytes
- Repository stars
- 15
- License
- a license file GitHub does not identify
Use when working with Result and error handling, Ensure guards, validation attributes, object mapping, dates and the clock, specifications or partial-update Patch; the Pragmatic.Design foundation libraries.
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
# Pragmatic Use Foundation **Covers:** Use the Pragmatic.Design foundation libraries from NuGet in consumer apps (Result, Ensure, Validation, Mapping, Temporal, Specification, Patch) with the patterns driven by the source generator. Cross-cutting libraries that support every feature of a Pragmatic app. Ensure and Specification are pure runtime. Validation, Mapping and Patch are **attribute-driven, code-generation**, and so are parts of Result (a `partial` error gets its `WriteExtensions`) and Temporal (the property attributes such as `[AsUtc]`, and `[FromClock]`). ## When to use You are handling operation outcomes, guards, validation, DTO mapping, dates, reusable predicates, or partial-update DTOs. For caching: `pragmatic-use-caching`. For i18n/money: start from `pragmatic-choose-modules`. ## Result: outcomes without exceptions `Pragmatic.Result`, namespace `Pragmatic.Result`. Use it for **expected business failures**; exceptions remain for bugs. **Use the built-in HTTP errors first** (namespace `Pragmatic.Result.Http`); do not redefine them: | Error | Status | Factories / properties | |---|---|---| …
Read the whole file at its exact version.
How to install
mdr add pragmatic-design/pragmatic.design/pragmatic-use-foundation@sha256:b0812c4f8f7c2814The line at the top of this page pins the label git:20261012.c429334, 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_66mydudiybyuma34)
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Versions
The registry has recorded 3 versions of this file, between Oct 2, 2026 and Oct 12, 2026, about one every 5 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261012.c429334 latest | 2026-10-12 | c429334 | 24,742 B | A | view · diff |
| git:20261004.7a4079a | 2026-10-04 | 7a4079a | 24,180 B | A | view · diff |
| git:20261002.ccb0d57 | 2026-10-02 | ccb0d57 | 24,332 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 (24742 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
pragmatic-design/pragmatic.design · 15 stars · license a license file GitHub does not identify · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_66mydudiybyuma34 GET https://markdownregistry.com/api/v1/resolve?ref=pragmatic-design/pragmatic.design/pragmatic-use-foundation GET https://markdownregistry.com/api/v1/blob/b0812c4f8f7c28149cfb79ba88972801a57e0344e64c3bebea85fc5e191e0e97
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.