api-error-handling SKILL.md skillA
api-error-handling from secondsky/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add secondsky/claude-skills/api-error-handling@git:20260402.75421faPins git:20260402.75421fa in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- secondsky/claude-skills
- Path
plugins/api-error-handling/skills/api-error-handling/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260402.75421fa, committed Apr 2, 2026
- First version recorded
- Dec 24, 2025
- Size
- 2,852 bytes
- Repository stars
- 243
- License
- MIT
Implements standardized API error responses with proper status codes, logging, and user-friendly messages. Use when building production APIs, implementing error recovery patterns, or integrating error monitoring services.
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
# API Error Handling
Implement robust error handling with standardized responses and proper logging.
## Standard Error Response Format
```json
{
"error": {
"code": "VALIDATION_ERROR",
"message": "Invalid request parameters",
"status": 400,
"requestId": "req_abc123",
"timestamp": "2025-01-15T10:30:00Z",
"details": [
{ "field": "email", "message": "Invalid email format" }
]
}
}
```
## Error Class (Node.js)
```javascript
class ApiError extends Error {
constructor(code, message, status = 500, details = null) {
super(message);
this.code = code;
this.status = status;
this.details = details;
}
static badRequest(message, details) {
return new ApiError('BAD_REQUEST', message, 400, details);
}
static notFound(resource) {
return new ApiError('NOT_FOUND', `${resource} not found`, 404);
}
static unauthorized() {
return new ApiError('UNAUTHORIZED', 'Authentication required', 401);
}
}
// Global error handler
app.use((err, req, res, next) => {
const status = err.status || 500;
const response = {
error: {
code: err.code || 'INTERNAL_ERROR',
…Read the whole file at its exact version.
How to install
mdr add secondsky/claude-skills/api-error-handling@sha256:fd16ba8b5456aecaThe line at the top of this page pins the label git:20260402.75421fa, 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_zsfb44h3saupyvgy)
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Versions
The registry has recorded 2 versions of this file, between Dec 24, 2025 and Apr 2, 2026, about one every 100 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260402.75421fa latest | 2026-04-02 | 75421fa | 2,852 B | A | view · diff |
| git:20251224.ba827ce | 2025-12-24 | ba827ce | 2,839 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 (2852 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
secondsky/claude-skills · 243 stars · license MIT · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_zsfb44h3saupyvgy GET https://markdownregistry.com/api/v1/resolve?ref=secondsky/claude-skills/api-error-handling GET https://markdownregistry.com/api/v1/blob/fd16ba8b5456aeca4a4bbb5979b27da3de50e207a0b674c8b425d42208d9c64f
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.