rust-api-design SKILL.md skillA
rust-api-design from lu1sdv/skillsmd is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lu1sdv/skillsmd/rust-api-design@git:20261103.3acb4abPins git:20261103.3acb4ab in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lu1sdv/skillsmd
- Path
rust-api-design/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261103.3acb4ab, committed Nov 3, 2026
- First version recorded
- Oct 11, 2026
- Size
- 8,511 bytes
- Repository stars
- 2
- License
- none declared
Use when designing or reviewing Rust public APIs, trait boundaries, builders, newtypes, typestate transitions, enum versus dyn dispatch, or applying SOLID and creational, structural, or behavioral design patterns without class hierarchies. Triggers include dyn compatibility, dependency injection, API evolution, adapters, decorators, factories, visitors, and ownership-aware interfaces.
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
# Rust API Design Choose functions, concrete types, enums, and composition before introducing an abstraction. A pattern earns its place by enforcing an invariant or isolating an actual variation point, not by completing a pattern checklist. ## Quick reference: route by decision | Decision | Default | Read | |---|---|---| | Function, trait, generic, or trait object? | Concrete function until variability is real | [API contracts](references/api-contracts.md) | | Ownership, errors, lifetimes, public compatibility | Express caller obligations in the signature | [API contracts](references/api-contracts.md) | | Constructor, builder, factory, abstract factory | Associated constructor with required arguments | [Creation](references/creational.md) | | Singleton or prototype | Pass configuration; use `Clone` deliberately | [Creation](references/creational.md) | | Adapter, decorator, facade, composite | Newtype, std trait, module, or enum | [Composition](references/structural.md) | | Proxy, flyweight, bridge | Explicit methods, scoped sharing, independent axes | [Composition](references/structural.md) | …
Read the whole file at its exact version.
How to install
mdr add lu1sdv/skillsmd/rust-api-design@sha256:0380a17cb4a66491The line at the top of this page pins the label git:20261103.3acb4ab, 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_x7qpcfhz4jb2t4bf)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Oct 11, 2026 and Nov 3, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261103.3acb4ab latest | 2026-11-03 | 3acb4ab | 8,511 B | A | view · diff |
| git:20261011.8d24f4c | 2026-10-11 | 8d24f4c | 8,515 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 (8511 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
lu1sdv/skillsmd · 2 stars · license none declared · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_x7qpcfhz4jb2t4bf GET https://markdownregistry.com/api/v1/resolve?ref=lu1sdv/skillsmd/rust-api-design GET https://markdownregistry.com/api/v1/blob/0380a17cb4a664918ecf399db86ed0883e8a65a1e08cdae82050eb9c5f58001f
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.