common-error-handling
Cross-cutting standards for error design, response shapes, error codes, and boundary placement.
Skill by wildbitca
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Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
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About
Use cases: design
Reviews
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Permissions
What this skill can do and what it asks for, from its SKILL.md and code. Checked Nov 1, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/common-error-handling
What's inside
- Skill name
common-error-handling- Description
- Cross-cutting standards for error design, response shapes, error codes, and boundary placement. (triggers: **/*.service.ts, **/*.handler.ts, **/*.controller.ts, **/*.go, **/*.java, **/*.kt, **/*.py, error handling, exception, try catch, error boundary, error response, error code, throw)
- License
- Apache-2.0
- Instructions
- 28 lines in SKILL.md · view on GitHub
Files (3)
- SKILL.md
- api-error-contract.md · references/
- example.md · references/
SKILL.md (first lines)
# Error Handling Standards
## **Priority: P1 (OPERATIONAL)**
## 🏗 Error Architecture
- **API Layer**: Map domain errors to HTTP responses globally.
- **Domain Layer**: Throw pure business errors. NO HTTP status codes here.
- **Infra Layer**: Wrap 3rd-party exceptions. Do NOT leak raw DB errors to API.
- **Standard Shape**: APIs must return a standardized JSON envelope (`code`, `message`, `traceId`).
## 📦 Error Mechanics
- **Wrap**: Add context (`fmt.Errorf("process: %w", err)`, `new Error('msg', { cause })`).
- **Replace**: Only when original error leaks sensitive details.
- **Error Codes**: Use `SCREAMING_SNAKE_CASE` IDs (`ORDER_PAYMENT_FAILED`).
## 🚫 Anti-Patterns
- **Swallowing Errors**: Never `catch(e) {}` without logging or re-throwing.
- **Stack Traces**: Never expose stack traces in API responses.
- **Generic 500s**: Use `400` with specific details for validation instead of 500.
## References
- [API Error Contract](references/api-error-contract.md)From wildbitca/ai-resources, Apache-2.0.
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Signals
- Stars
- 1
- Forks
- 0
- Open issues
- 1
- Last commit (this folder)
- Oct 23, 2026 (9 days ago)
- Last release
- Oct 24, 2026 (8 days ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- Apache-2.0
- Repository
- github.com/wildbitca/ai-resources
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Cite this page
common-error-handling skill. Agent Mart. https://agentmart.dev/skills/wildbitca-common-error-handling (last updated 2026-10-24)