# Adaptive Enforcement Lab Claude Skills Error Handling > Error Handling - Skill: `tomevault-io/adaptive-enforcement-lab-claude-skills-error-handling` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/adaptive-enforcement-lab-claude-skills-error-handling` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/adaptive-enforcement-lab-claude-skills-error-handling/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/adaptive-enforcement-lab-claude-skills-error-handling --- # Error Handling ## When to Use This Skill Error handling for GitHub App tokens addresses: - **Token expiration (401)** - Expired tokens after 1 hour - **Permission errors (403)** - Missing app permissions or installation scopes - **Rate limits (429)** - API usage limits and retry strategies - **Network failures** - Transient connectivity issues - **Validation errors (422)** - Invalid request payloads > **Error Handling Strategy** > > > 1. **Detect** - Identify error type from HTTP status codes > 2. **Classify** - Determine if error is retryable > 3. **Retry** - Use exponential backoff for transient errors > 4. **Escalate** - Provide actionable messages for permanent failures ## Implementation See the full implementation guide in the [source documentation](https://adaptive-enforcement-lab.com/patterns/github-actions/). ## Examples See [examples.md](examples.md) for code examples. ## Full Reference See [reference.md](reference.md) for complete documentation. ## References - [Source Documentation](https://adaptive-enforcement-lab.com/patterns/github-actions/) - [AEL Patterns](https://adaptive-enforcement-lab.com/patterns/) --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/adaptive-enforcement-lab) — claim your Tome and manage your conversions.