devex-sdk-design SKILL.md skillA
devex-sdk-design from travisjneuman/.claude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add travisjneuman/.claude/devex-sdk-design@git:20260328.75c803aPins git:20260328.75c803a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- travisjneuman/.claude
- Path
skills/devex-sdk-design/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260328.75c803a, committed Mar 28, 2026
- Size
- 3,717 bytes
- Repository stars
- 105
- License
- MIT
Developer experience (DX) engineering, SDK design patterns, API ergonomics, CLI tooling design, documentation-driven development, and developer onboarding. Use when designing SDKs, improving API ergonomics, building developer tools, or creating developer documentation.
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
# Developer Experience & SDK Design
## SDK Design Principles
### API Ergonomics
```typescript
// Bad: too many required params, unclear ordering
createUser(name, email, role, true, false, null, 'active');
// Good: builder pattern with named properties
const user = await sdk.users.create({
name: 'Alice',
email: 'alice@example.com',
role: 'admin',
});
// Good: fluent API for complex operations
const results = await sdk.query('users')
.where('role', '=', 'admin')
.orderBy('createdAt', 'desc')
.limit(10)
.execute();
```
### Progressive Disclosure
```typescript
// Simple case: just works with defaults
const client = new MySDK('api-key');
const result = await client.doThing();
// Advanced case: full control available
const client = new MySDK({
apiKey: 'api-key',
baseUrl: 'https://custom.endpoint.com',
timeout: 30000,
retries: { maxAttempts: 3, backoff: 'exponential' },
middleware: [loggingMiddleware, authRefreshMiddleware],
});
```
## Error Design
```typescript
// SDK errors should be structured and actionable
class SDKError extends Error {
constructor(
message: string,
public readonly code: string, // machine-readable
…Read the whole file at its exact version.
How to install
mdr add travisjneuman/.claude/devex-sdk-design@sha256:b273e029ba306865The line at the top of this page pins the label git:20260328.75c803a, 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_rn7qekik4zxugluf)
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Versions
The registry has recorded 1 version of this file, committed on Mar 28, 2026.
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 (3717 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
travisjneuman/.claude · 105 stars · license MIT · pushed 2026-10-19 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_rn7qekik4zxugluf GET https://markdownregistry.com/api/v1/resolve?ref=travisjneuman/.claude/devex-sdk-design GET https://markdownregistry.com/api/v1/blob/b273e029ba3068658e6c00bca65ac1ccacdabc9565b68716f4e3eb6c21253a40
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.