error-handling
Use when: design error handling so failures are explicit, recoverable, and never silently swallowed.
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- kimtth/agent-skill-100-lines-or-less
- Última actividad en el origen
- 26 de junio de 2026 a las 02:15
- Idioma detectado de SKILL.md
- inglés
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Instrucciones de origen · Vista previa de solo lectura- name
- error-handling
- description
- Use when: design error handling so failures are explicit, recoverable, and never silently swallowed.
Goal: failures that are visible, contextual, and handled deliberately.
Use for:
- deciding how functions signal and propagate failure
- reviewing try/catch, error types, and recovery
- fixing swallowed errors and vague messages
Workflow:
1. Distinguish expected failures from programmer bugs.
2. Model expected errors explicitly (results or typed exceptions).
3. Handle errors where you can act; otherwise propagate with context.
4. Add context as errors cross boundaries, without losing the cause.
5. Fail fast on invariant violations; do not limp on.
6. Surface actionable messages; log details once, near the source.
Patterns:
- typed errors or result types over generic throws
- wrap-and-rethrow to add context, preserving the cause
- retry with backoff for transient failures only
- a single place that maps errors to user-facing responses
Rules:
- never swallow an error silently
- do not catch broadly just to continue; handle or rethrow
- include context, never the bare message
- distinguish retryable failures from permanent ones
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