error-handling skillA
error-handling is agent-read markdown (skill) from komluk/scaffolding: Consistent error handling across frontend and backend layers. TRIGGER when: implementing error boundaries, exception handlers, or try/catch blocks. SKIP: shaping HTTP error response bodies (use api-design); logging the error (use logging-standards). (Examples in React + Python.).
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Error Handling Skill ## Purpose Standards for consistent error handling across frontend and backend layers (examples in React + Python). ## Auto-Invoke Triggers - Implementing exception handling - Creating custom exceptions - Handling API errors - Implementing retry logic - Designing user-facing error messages --- ## Error Categories | Category | HTTP Code | User Action | Log Level | |----------|-----------|-------------|-----------| | Validation | 400 | Show field errors | WARN | | Authentication | 401 | Redirect to login | WARN | | Authorization | 403 | Show permission denied | WARN | | NotFound | 404 | Show not found message | INFO | | Conflict | 409 | Show conflict details | WARN | | RateLimit | 429 | Show retry-after | WARN | | ExternalService | 502 | Show fallback/retry option | ERROR | | Internal | 500 | Show generic error | ERROR | | Critical | 500 | Show maintenance page | CRITICAL | --- ## Exception Hierarchy Design ### Principles - Create base `AppException` class for all application errors - Extend with specific exception types per category - Include: code, message, status code, details (optional) - Never expose internal details to clients …
Read the whole file at its exact version.
How to install
mdr add komluk/scaffolding/error-handling@git:20260614.9d809afmdr add komluk/scaffolding/error-handling@sha256:d687bb5dbf525224Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_j5ef3efy3i2hc4ix)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260614.9d809af latest | 2026-06-14 | 9d809af | 5,205 B | A | view · diff |
| git:20260520.3aa374b | 2026-05-20 | 3aa374b | 5,152 B | A | view · diff |
| git:20260409.25dc3ca | 2026-04-09 | 25dc3ca | 5,047 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 (5205 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
komluk/scaffolding · 15 stars · license MIT · pushed 2026-09-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_j5ef3efy3i2hc4ix GET https://markdownregistry.com/api/v1/resolve?ref=komluk/scaffolding/error-handling GET https://markdownregistry.com/api/v1/blob/d687bb5dbf52522452dac7c64d5c320e7592b669bc18da1b5c13dea1c88f38f3
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