# 2036 Errors E0d2c557

> Error Handling Reference

- Skill: `tools-only/2036-errors-e0d2c557` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add tools-only/2036-errors-e0d2c557`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tools-only/2036-errors-e0d2c557/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Research & Search
- Author: tools-only (https://skillmd.com/u/tools-only)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/tools-only/2036-errors-e0d2c557

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# Error Handling Reference

Common issues and solutions:

**Schema Validation Failures**
- Error: Request body does not match expected schema
- Solution: Add detailed validation error messages; provide schema documentation; implement request sanitization

**Authentication Errors**
- Error: Invalid or expired authentication tokens
- Solution: Implement proper token refresh flows; add clear error messages indicating auth failure reason; document token lifecycle

**Rate Limit Exceeded**
- Error: API consumer exceeded allowed request rate
- Solution: Return 429 status with Retry-After header; implement exponential backoff guidance; provide rate limit info in response headers

**Database Connection Issues**
- Error: Cannot connect to database or query timeout
- Solution: Implement connection pooling; add health checks; configure proper timeouts; implement circuit breaker pattern for resilience